Metallic acrylate composition, preparation method thereof, and resins comprising the same
10550259 ยท 2020-02-04
Assignee
Inventors
- Chiu-Peng Tsou (Taichung, TW)
- Wen-Wei Cheng (Taichung, TW)
- Kuan-Jung Chiu (Taichung, TW)
- Ting-Ti Huang (Taichung, CN)
Cpc classification
C08L9/00
CHEMISTRY; METALLURGY
C08L33/02
CHEMISTRY; METALLURGY
C08L2205/03
CHEMISTRY; METALLURGY
C08L57/00
CHEMISTRY; METALLURGY
C08L27/18
CHEMISTRY; METALLURGY
C08F4/52
CHEMISTRY; METALLURGY
C08K5/09
CHEMISTRY; METALLURGY
C08L9/00
CHEMISTRY; METALLURGY
C08K5/09
CHEMISTRY; METALLURGY
International classification
C08L33/02
CHEMISTRY; METALLURGY
C08L27/18
CHEMISTRY; METALLURGY
C08L57/00
CHEMISTRY; METALLURGY
Abstract
A metallic acrylate composition comprises a metallic acrylate and a dispersant, wherein the content of the dispersant is in the range from 0.1 weight percent to 5 weight percent based on the total weight of the metallic acrylate composition, and the metallic acrylate has the structure represented by Formula (I) or Formula (II) as follows: ##STR00001## wherein in Formula (I) and Formula (II), X is larger than 0 and less than 2, and M.sup.2+ is zinc ion (Zn.sup.2+), magnesium ion (Mg.sup.2+) or calcium ion (Ca.sup.2+); R1 is a hydrogen group or a saturated alkyl group; and R2 is ##STR00002##
and the dispersant is polytetrafluoroethylene (PTFE) wax or PTFE-modified polyethylene wax.
Claims
1. A metallic acrylate composition comprising: a metallic acrylate having the structure represented by Formula (I) or Formula (II) as follows: ##STR00008## wherein in Formula (I) and Formula (II), X is larger than 0 and less than 2, and M.sup.2+ is zinc ion (Zn.sup.2+), magnesium ion (Mg.sup.2+) or calcium ion (Ca.sup.2+); R1 is a hydrogen group or a saturated alkyl group; and R2 is ##STR00009## and a dispersant being polytetrafluoroethylene (PTFE) wax or PTFE-modified polyethylene wax, and the content of the dispersant being in the range from 0.1 weight percent to 5 weight percent based on the total weight of the metallic acrylate composition.
2. The metallic acrylate composition as claimed in claim 1, wherein the saturated alkyl group in Formula (I) has a carbon number of 1 to 6.
3. The metallic acrylate composition as claimed in claim 1, wherein X in Formula (II) is larger than 0 and less than or equal to 1.
4. A resin composition, comprising a polymer and the metallic acrylate composition as claimed in claim 1.
5. The resin composition as claimed in claim 4, wherein the amount of the metallic acrylate composition is 1 part to 50 parts, based on the total weight of the polymer being 100 parts.
6. The resin composition as claimed in claim 4, wherein the resin composition contains a neodymium catalyst, a nickel catalyst, a cobalt catalyst or a lithium catalyst.
7. The resin composition as claimed in claim 4, wherein the polymer is a vulcanized polymer.
8. The resin composition as claimed in claim 7, wherein the vulcanized polymer is selected from polyolefin, ethylene--olefin copolymer, ethylene--olefin-nonconjugated diene copolymer, polyethylene (PE), ethylene propylene rubber (EP), ethylene propylene diene monomer (EPDM), polybutene rubber (BR), polyisobutylene rubber (IIR), natural rubber (NR), polyisoprene rubber (IR), styrene-butadiene-styrene block copolymer (SBS), styrene-isoprene-styrene block copolymer (SIS), styrene butadiene rubber (SBR), hydrogenated styrene butadiene styrene block polymer (SBS-SEBS), nitrile rubber (NBR), polyolefin elastomer (POE) or any mixture thereof.
9. The resin composition as claimed in claim 8, wherein the resin composition contains an organic peroxide.
10. The resin composition as claimed in claim 9, where the organic peroxide is selected from alkyl peroxides, dialkyl peroxides, aromatic peroxides, peroxyesters, diperoxyketals, diacyl peroxides or peroxydicarbonates.
11. A preparation method of the metallic acrylate composition as claimed in claim 1, comprising the steps of: reacting an acrylic acid and a divalent metal oxide in a nonpolar solvent to obtain a first mixture; adding PTFE wax or PTFE-modified polyethylene wax to the first mixture to obtain the metallic acrylate composition.
12. The preparation method as claimed in claim 11, wherein the acrylic acid is reacted with the divalent metal oxide at a temperature between 30 C. and 100 C. to obtain the first mixture.
13. The preparation method as claimed in claim 11, wherein the molar ratio of the acrylic acid to the divalent metal oxide is between 1.4:1 and 2.1:1.
14. A preparation method of the metallic acrylate composition as claimed in claim 1, comprising the steps of: reacting the metallic acrylate and an organophosphorus oxide in a nonpolar solvent to obtain a first mixture; adding PTFE wax or PTFE-modified polyethylene wax to the first mixture to obtain the metallic acrylate composition.
15. The preparation method as claimed in claim 14, wherein the metallic acrylate composition is reacted with the organophosphorus oxide at a temperature between 30 C. and 100 C.
16. The preparation method as claimed in claim 14, wherein the molar ratio of the metallic acrylate composition to the organophosphorus oxide is between 1:0.05 and 1:2.
Description
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
(1) Hereinafter, embodiments and their yields of the metallic acrylate compositions of several examples will be exemplified, and the structure and thermal properties of the metallic acrylate compositions of the examples are characterized by means of Proton Nuclear Magnetic Resonance (.sup.1H-NMR), Fourier Transform Infrared Spectroscopy (FTIR) and Differential Scanning Calorimeter (DSC).
(2) 1. Yield: The theoretical weight of the target metallic acrylate composition was calculated based on the limiting reagent of the divalent metal oxide or the divalent metal hydroxide in each example and comparative example, and the actual weight of the product obtained after purification and drying was divided by the theoretical weight and then multiplied by 100% to obtain the yield (unit:%).
(3) 2. Fourier Transform Infrared Spectroscopy (FTIR) Measurement: The measurements were performed on a Thermo Nicolet 330FT-IR, the sample and potassium bromide (KBr) were mixed at a weight ratio of 1:50 to 1:100, and then fully ground and pressed into ingots in an agate grind for FTIR testing. The scan range was between 4000 cm.sup.1 and 450 cm.sup.1, so as to identify the characteristic functional group of the analyte.
(4) 3. Proton Nuclear Magnetic Resonance Spectroscopy (.sup.1H-NMR): The measurements were performed on Varian NMR-400 under a magnetic field of 400 MHz. After the sample was dispersed with chloroform-deuteride (CDCl.sub.3) as solvent, trace dimethyl sulfoxide-d6 (d.sub.6-DMSO) was added to dissolve the sample for testing. In the NMR spectroscopic analysis results described below, s represents a singlet; br. s represents a broad singlet; d represents a doublet; t represents a triplet; q represents a quartet; dd represents a doublet of doublets; td represents a triplet of doublets; m represents a multiplet; br. represents a broad absorption peak; and J represents the coupling constant in unit of Hertz (Hz).
(5) 4. Differential Scanning Calorimetry (DSC) Measurement: The measurement was carried out with a DSC821e (Mettler Toledo) at a nitrogen flow rate of 80 ml per minute, from room temperature to 290 C. at a heating rate of 10 C. per minute, to measure the endothermic peak of the powder, endothermic onset, endothermic endset and enthalpy change, as well as the exothermic peak, exothermic onset and enthalpy change. In the DSC analysis results described below, br. s represents a broad singlet; br. d represents a broad doublet; and br. m represents a broad multiplet.
Example 1: Metallic Acrylate Composition (Containing 0.3 wt % PTFE Wax as Dispersant)
(6) 2000 ml of toluene, 586.4 g (7.24 moles) of zinc oxide, 102.3 g (0.36 moles) of stearic acid and 4.8 g of nonionic surfactant (trade name Sinopl 1807) were added into a 6 liter stainless steel reaction vessel, then heated to 505 C. after mixing; next, 1048 g (14.55 moles) of acrylic acid (purchased from Taiwan Plastics Industry Co., Ltd, containing 20020 ppm hydroquinone monomethyl ether) was added and then stirred for 2 hours to obtain a first mixture.
(7) The first mixture was subjected to vacuum distillation to remove the water produced by the reaction and to recover the toluene. Drying of the mixture was continued until the water content was less than 2000 ppm after the vacuum degassing. After cooling to room temperature, 4.85 g of PTFE wax (L-5F produced by AIKIN INDUSTRIES, LTD.: CAS No. 9002-84-0, average particle diameter 5 m) was added as a dispersant and then stirring was continued for 2 hours to obtain a second mixture.
(8) The second mixture was taken out of the reaction vessel and was disintegrated through a RT-25 airflow ultrafine high-speed pulverizer to obtain 1571 g of white powdery product, which was the metallic acrylate composition of Example 1 containing 0.3 wt % dispersant.
(9) The total theoretical weight of the product was 1618 g with a yield of 97.1%; DSC measured from an endothermic onset of 107.57 C. to an endothermic endset of 117.22 C., the endothermic peak (br. s) was 114.26 C. and the enthalpy change was 13.67 J/g, the exothermic onset was 206.42 C., the exothermic peak (br. m) was 209.94 C. and the enthalpy change was >103.76 J/g; .sup.1H-NMR (400 MHz, CDCl.sub.3+d.sub.6DMSO) were 66.22 (dd, J=17 Hz, J=2 Hz), 6.04 (dd, J=17 Hz, J=10 Hz), 5.60 (dd, J=10 Hz, J=2 Hz), 2.17 (t, J=7 Hz), 1.47 (m), 1.14 (br.s), 0.76 (t, J=7 Hz); FTIR (KBr) were 22917, 2848, 1662, 1602, 1535, 1443, 1373, 1277, 1070, 980, 936, 829, 711, 674, 603 cm.sup.1.
Example 2: Metallic Acrylate Composition (Containing 0.3 wt % PTFE-Modified PE Wax as Dispersant)
(10) A metallic acrylate composition in Example 2 was prepared substantially in the same way as described in Example 1, and the difference lies in the dispersants.
(11) 2000 ml of toluene, 586.4 g (7.24 moles) of zinc oxide, 102.3 g (0.36 moles) of stearic acid and 4.8 g of nonionic surfactant (trade name Sinopl 1830) were added into a 6 liter stainless steel reaction vessel, then heated to 505 C. after mixing; next, 1048 g (14.55 moles) of acrylic acid (purchased from Taiwan Plastics Industry Co., Ltd, containing 20020 ppm hydroquinone monomethyl ether) was added and then stirred for 2 hours to obtain a first mixture.
(12) The first mixture was subjected to vacuum distillation, drying and cooling to room temperature, 4.85 g of PTFE-modified polyethylene wax (DEUREX F63A: average particle diameter <150 m, PTFE spot-coated wax) was added as a dispersant and then stirring was continued for 2 hours to obtain a second mixture.
(13) The second mixture was taken out of the reaction vessel and was disintegrated through a RT-25 airflow ultrafine high-speed pulverizer to obtain 1569 g of white powdery product, which was the metallic acrylate composition of Example 2 containing 0.3 wt % dispersant.
(14) The total theoretical weight of the product was 1618 g with a yield of 97.0%; DSC measured from an endothermic onset of 106.53 C. to an endothermic endset of 117.20 C., the endothermic peak (br. s) was 113.80 C. and the enthalpy change was 12.62 J/g, the exothermic onset was 206.07 C., the exothermic peak (br. m) was 209.67 C. and the enthalpy change was >90.85 J/g; .sup.1H-NMR (400 MHz, CDCl.sub.3+d.sub.6DMSO) were 66.21 (dd, J=17 Hz, J=2 Hz), 6.05 (dd, J=17 Hz, J=10 Hz), 5.63 (dd, J=10 Hz, J=2 Hz), 2.18 (t, J=7 Hz), 1.47 (m), 1.14 (br. s), 0.77 (t, J=7 Hz); FTIR (KBr) were 2917, 2848, 1662, 1602, 1536, 1443, 1373, 1277, 1071, 980, 936, 830, 711, 675, 604 cm.sup.1.
Example 3: Metallic Acrylate Composition (Containing 0.3 wt % PTFE-Modified PE Wax as Dispersant)
(15) A metallic acrylate composition in Example 3 was prepared substantially in the same way as described in Example 1, and the difference lies in the dispersants.
(16) 2000 ml of toluene, 586.4 g (7.24 moles) of zinc oxide, 102.3 g (0.36 moles) of stearic acid and 4.8 g of silicone oil were added into a 6 liter stainless steel reaction vessel, then heated to 505 C. after mixing; next, 1048 g (14.55 moles) of acrylic acid (purchased from Taiwan Plastics Industry Co., Ltd, containing 20020 ppm hydroquinone monomethyl ether) was added and then stirred for 2 hours to obtain a first mixture.
(17) The first mixture was subjected to vacuum distillation to remove the water produced by the reaction and to recover the toluene. Drying was continued until the water content was less than 2000 ppm after the vacuum degassing. After cooling to room temperature, 4.85 g of PTFE-modified polyethylene wax (DEUREX F61A: average particle diameter <150 rpm, PTFE double-layer wax) was added as a dispersant and then stirring was continued for 2 hours to obtain a second mixture.
(18) The second mixture was taken out of the reaction vessel and was disintegrated through a RT-25 airflow ultrafine high-speed pulverizer to obtain 1581 g of white powdery product, which was the metallic acrylate composition of Example 3 containing 0.3 wt % dispersant.
(19) The total theoretical weight of the product was 1618 g with a yield of 97.7%; DSC measured from an endothermic onset of 108.09 C. to an endothermic endset of 117.36 C., the endothermic peak (br. s) was 114.26 C. and the enthalpy change was 12.01 J/g, the exothermic onset was 206.66 C., the exothermic peak (br. m) was 210.24 C. and the enthalpy change was >91.72 J/g; .sup.1H-NMR (400 MHz, CDCl.sub.3+d.sub.6DMSO) were 66.21 (dd, J=17 Hz, J=2 Hz), 6.05 (dd, J=17 Hz, J=10 Hz), 5.63 (dd, J=10 Hz, J=2 Hz), 2.18 (t, J=7 Hz), 1.47 (m), 1.14 (br. s), 0.77 (t, J=7 Hz); FTIR were 3436 (br.), 2917, 2848, 1662, 1602, 1535, 1443, 1373, 1277, 1070, 980, 936, 829, 711, 674, 612 cm.sup.1.
Example 4: Metallic Acrylate Composition (Containing 0.75 wt % PTFE-Modified PE Wax as Dispersant)
(20) A metallic acrylate composition in Example 4 was prepared substantially in the same way as described in Example 3, and the difference lies in the dispersants.
(21) In Example 4, after the first mixture was prepared by the same procedure as in Example 3, the first mixture was subjected to vacuum distillation, drying and cooling to room temperature, 12.2 g of PTFE-modified polyethylene wax (DEUREX F61A: average particle diameter <150 m, PTFE double-layer wax) was added as a dispersant and then stirring was continued for 2 hours to obtain a second mixture.
(22) The second mixture was taken out of the reaction vessel and was disintegrated through a RT-25 airflow ultrafine high-speed pulverizer to obtain 1584 g of white powdery product, which was the metallic acrylate composition of Example 4 containing 0.75 wt % dispersant.
(23) The total theoretical weight of the product was 1624.7 g with a yield of 97.5%; DSC measured from an endothermic onset of 102.68 C. to an endothermic endset of 114.06 C., the endothermic peak (br. s) was 110.45 C. and the enthalpy change was 12.26 J/g, the exothermic onset was 200.46 C., the exothermic peak (br. m) was 206.09 C., and the enthalpy change was >91.82 J/g; .sup.1H-NMR (400 MHz, CDCl.sub.3+d.sub.6DMSO) were 66.23 (dd, J=17 Hz, J=2 Hz), 6.06 (dd, J=17 Hz, J=10 Hz), 5.63 (dd, J=10 Hz, J=2 Hz), 2.20 (t, J=7 Hz), 1.50 (m), 1.16 (br. s), 0.78 (t, J=7 Hz); FTIR (KBr) were 3436 (br.), 2918, 2849, 1647, 1602, 1536, 1443, 1373, 1277, 1070, 980, 935, 830, 710, 676, 611 cm.sup.1.
Example 5: DOPO-Modified Metallic Acrylate Composition (Containing 0.1 wt % PTFE Wax as Dispersant)
(24) An metallic acrylate composition in Example 5 was prepared substantially in the same way as described in Example 1, and the difference lies in the species and amounts of reactants, dispersants, and reaction conditions.
(25) 2000 ml of toluene, 1245 g (5.2 moles) of modified zinc diacrylate powder (K-CURE339), 373.2 g 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (abbreviated as DOPO), the reactant was heated to 65 C. to 75 C. after uniformly stirred, and then stirred for 1 hour to obtain a first mixture.
(26) The first mixture was subjected to vacuum distillation, drying and cooling to room temperature, 1.6 g of PTFE-modified polymeric wax (L-5F produced by AIKIN INDUSTRIES, LTD.: CAS No. 9002-84-0, average particle diameter 5 m) was added as a dispersant and then stirring was continued for 2 hours to obtain a second mixture.
(27) The second mixture was taken out of the reaction vessel and was disintegrated through a RT-25 airflow ultrafine high-speed pulverizer to obtain 1576 g of white powdery product, which was the metallic acrylate composition of Example 5 containing 0.1 wt % dispersant.
(28) The total theoretical weight of the product was 1620 g with a yield of 97.0%; DSC measured from an endothermic onset of 98.75 C. to an endothermic endset of 110.74 C., the endothermic peak (br. d) was 107.93 C. and the enthalpy change was 10.03 J/g, the exothermic onset was 211.67 C., the exothermic peak (br. s) was 238.46 C. and the enthalpy change was >178.37 J/g; .sup.1H-NMR (400 MHz, CDCl.sub.3+d.sub.6DMSO) were 67.85-7.56 (m), 7.48 (t, J=7.8 Hz), 7.32-6.80 (m), 6.62 (d, J=12 Hz), 6.05 (d, J=20 Hz), 5.90 (dd, J=18 Hz, J=8 Hz), 5.46 (d, J=8 Hz), 2.50-1.80 (m), 1.50-1.25 (m), 1.02 (br. s), 0.64 (t, J=3.2 Hz); FTIR (KBr) were 3396 (br.), 2917, 2848, 1644, 1541, 1440, 1371, 1276, 1140, 1093, 1057, 1039, 986, 831, 760, 674, 531 cm.sup.1.
Example 6: DOPO-Modified Metallic Acrylate Composition (Containing 3 wt % PTFE Wax as Dispersant)
(29) A metallic acrylate composition in Example 6 was prepared substantially in the same way as described in Example 5, and the difference lies in the amounts of dispersants.
(30) In Example 6, after the first mixture was prepared by the same procedure as in Example 5, 48.6 g of PTFE-modified polymeric wax (L-5F produced by AIKIN INDUSTRIES, LTD.: CAS No. 9002-84-0, average particle diameter 5 m) was added as a dispersant and then stirring was continued for 2 hours to obtain a second mixture.
(31) The second mixture was taken out of the reaction vessel and was disintegrated through a RT-25 airflow ultrafine high-speed pulverizer to obtain 1585 g of white powdery product, which was the metallic acrylate composition of Example 6 containing 3 wt % dispersant.
(32) The total theoretical weight of the product was 1620 g with a yield of 98.0%; DSC measured from an endothermic onset of 98.30 C. to an endothermic endset of 110.24 C., the endothermic peak (br. d) was 107.27 C. and the enthalpy change was 10.75 J/g, the exothermic onset was 227.71 C., the exothermic peak (br. s) was 244.39 C., and the enthalpy change was >146.63 J/g; .sup.1H-NMR (400 MHz, CDCl.sub.3+d.sub.6DMSO) were 67.85-7.58 (m), 7.50 (t, J=8 Hz), 7.32-6.80 (m), 6.64 (d, J=28 Hz), 6.06 (d, J=20 Hz), 5.90 (dd, J=16 Hz, J=12 Hz), 5.47 (d, J=12 Hz), 2.50-1.80 (m), 1.50-1.25 (m), 1.03 (br. s), 0.66 (t, J=4 Hz); FTIR (KBr) were 3404 (br.), 2917, 2848, 1644, 1541, 1438, 1370, 1276, 1209, 1154, 1094, 1058, 1038, 986, 831, 760, 673, 532 cm.sup.1.
Example 7: DOPO-Modified Metallic Acrylate Composition (Containing 5 wt % PTFE Wax as Dispersant)
(33) A metallic acrylate composition in Example 7 was prepared substantially in the same way as described in Example 5, and the difference lies in the amounts of dispersants.
(34) In Example 7, after the first mixture was prepared by the same procedure as in Example 5, 81.0 g of PTFE-modified polymeric wax (L-5F produced by AIKIN INDUSTRIES, LTD.: CAS No. 9002-84-0, average particle diameter 5 m) was added as a dispersant and then stirring was continued for 2 hours to obtain a second mixture.
(35) The second mixture was taken out of the reaction vessel and was disintegrated through a RT-25 airflow ultrafine high-speed pulverizer to obtain 1583 g of white powdery product, which was the metallic acrylate composition of Example 7 containing 5 wt % dispersant.
(36) The total theoretical weight of the product was 1620 g with a yield of 97.0%; DSC measured from an endothermic onset of 98.30 C. to an endothermic endset of 109.71 C., the endothermic peak (br. d) was 106.92 C. and the enthalpy change was 10.88 J/g, the exothermic onset was 221.20 C., the exothermic peak (br. s) was 234.93 C., and the enthalpy change was >194.32 J/g; .sup.1H-NMR (400 MHz, CDCl.sub.3+d.sub.6DMSO) were 67.90-7.60 (m), 7.51 (t, J=8 Hz), 7.34-6.80 (m), 6.66 (d, J=28 Hz), 6.08 (d, J=20 Hz), 5.92 (dd, J=18 Hz, J=8 Hz), 5.49 (d, J=8 Hz), 2.50-1.80 (m), 1.50-1.25 (m), 1.05 (br. s), 0.66 (m); FTIR (KBr) were 3400 (br.), 2917, 2848, 1644, 1541, 1439, 1371, 1276, 1209, 1154, 1094, 1057, 1038, 986, 831, 760, 672, 605, 574, 528 cm.sup.1.
Example 8: DOPO-Modified Metallic Acrylate Composition (Containing 0.1 wt % PTFE-Modified PE Wax as Dispersant)
(37) A metallic acrylate composition in Example 8 was prepared substantially in the same way as described in Example 5, and the difference lies in the species of dispersants.
(38) In Example 8, after the first mixture was prepared by the same procedure as in Example 5, 1.6 g of PTFE-modified polyethylene wax (DEUREX F61A: average particle diameter <150 m, PTFE double-layer wax) was added as a dispersant and then stirring was continued for 2 hours to obtain a second mixture.
(39) The second mixture was taken out of the reaction vessel and was disintegrated through a RT-25 airflow ultrafine high-speed pulverizer to obtain 1590 g of white powdery product, which was the metallic acrylate composition of Example 8 containing 0.1 wt % dispersant.
(40) The total theoretical weight of the product was 1620 g with a yield of 98.0%; DSC measured from an endothermic onset of 102.33 C. to an endothermic endset of 109.75 C., the endothermic peak (br. d) was 106.93 C. and the enthalpy change was 6.56 J/g, the exothermic onset was 211.50 C., the exothermic peak (br. s) was 241.55 C., and the enthalpy change was >171.95 J/g; .sup.1H-NMR (400 MHz, CDCl.sub.3+d.sub.6DMSO) were 67.86-7.58 (m), 7.50 (t, J=7.8 Hz), 7.35-6.80 (m), 6.64 (d, J=28 Hz), 6.07 (d, J=16 Hz), 5.91 (dd, J=18 Hz, J=8 Hz), 5.48 (d, J=8 Hz), 2.50-1.60 (m), 1.50-1.25 (m), 1.04 (br. s), 0.66 (m); FTIR were 3400 (br.), 2917, 2848, 1644, 1541, 1440, 1371, 1276, 1140, 1093, 1057, 1038, 986, 830, 760, 676, 532 cm.sup.1.
Example 9: DOPO-Modified Metallic Acrylate Composition (Containing 3 wt % PTFE-Modified PE Wax as Dispersant)
(41) A metallic acrylate composition in Example 9 was prepared substantially in the same way as described in Example 8, and the difference lies in the amount of dispersants.
(42) In Example 9, after the first mixture was prepared by the same procedure as in Example 8, 48.6 g of PTFE-modified polyethylene wax (DEUREX F61A: average particle diameter <150 m, PTFE double-layer wax) was added as a dispersant and then stirring was continued for 2 hours to obtain a second mixture.
(43) The second mixture was taken out of the reaction vessel and was disintegrated through a RT-25 airflow ultrafine high-speed pulverizer to obtain 1580 g of white powdery product, which was the metallic acrylate composition of Example 9 containing 3 wt % dispersant.
(44) The total theoretical weight of the product was 1620 g with a yield of 97.0%; DSC measured from an endothermic onset of 95.22 C. to an endothermic endset of 108.29 C., the endothermic peak (br. d) was 104.93 C. and the enthalpy change was 16.12 J/g, the exothermic onset was 217.78 C., the exothermic peak (br. s) was 230.07 C., and the enthalpy change was >131.94 J/g; .sup.1H-NMR (400 MHz, CDCl.sub.3+d.sub.6DMSO) were 67.86-7.58 (m), 7.49 (t, J=8 Hz), 7.34-6.78 (m), 6.63 (d, J=28 Hz), 6.06 (d, J=16 Hz), 5.90 (dd, J=16 Hz, J=8 Hz), 5.47 (d, J=8 Hz), 2.45-1.80 (m), 1.55-1.25 (m), 1.03 (br. s), 0.65 (m); FTIR (KBr) were 3380 (br.), 2917, 2848, 1647, 1601, 1541, 1442, 1372, 1277, 1140, 1094, 1057, 1038, 982, 936, 830, 760, 711, 675, 601 cm.sup.1.
Example 10: DOPO-Modified Metallic Acrylate Composition (Containing 5 wt % PTFE-Modified PE Wax as Dispersant)
(45) A metallic acrylate composition in Example 10 was prepared substantially in the same way as described in Example 8, and the difference lies in the amount of dispersants.
(46) In Example 10, after the first mixture was prepared by the same procedure as in Example 8, 81.0 g of PTFE-modified polyethylene wax (DEUREX F61A: average particle diameter <150 m, PTFE double-layer wax) was added as a dispersant and then stirring was continued for 2 hours to obtain a second mixture.
(47) The second mixture was taken out of the reaction vessel and was disintegrated through a RT-25 airflow ultrafine high-speed pulverizer to obtain 1592 g of white powdery product, which was the metallic acrylate composition of Example 10 containing 5 wt % dispersant.
(48) The total theoretical weight of the product was 1620 g with a yield of 98.0%; DSC measured from an endothermic onset of 92.39 C. to an endothermic endset of 108.02 C., the endothermic peak (br. d) was 104.24 C. and the enthalpy change was 23.97 J/g, the exothermic onset was 223.95 C., the exothermic peak (br. s) was 229.05 C., and the enthalpy change was >141.37 J/g; .sup.1H-NMR (400 MHz, CDCl.sub.3+d.sub.6DMSO) were 67.80-7.50 (m), 7.44 (t, J=8 Hz), 7.34-6.74 (m), 6.58 (d, J=31 Hz), 6.00 (d, J=17 Hz), 5.84 (dd, J=16 Hz, J=12 Hz), 5.42 (d, J=10 Hz), 2.40-1.70 (m), 1.50-1.20 (m), 0.98 (br. s), 0.60 (t, J=7.2 Hz); FTIR (KBr) 3361 (br.), 2917, 2848, 1649, 1603, 1540, 1442, 1372, 1277, 1140, 1093, 1056, 1038, 980, 935, 829, 759, 711, 675, 601, 530 cm.sup.1.
Comparative Example 1: Metallic Acrylate Composition (without Dispersant)
(49) A metallic acrylate composition in Comparative Example 1 was prepared substantially in the same way as described in Example 1, and the difference is that the metallic acrylate composition of Comparative Example 1 has no dispersant.
(50) In Comparative Example 1, after the first mixture was prepared by the same procedure as in Example 1, the first mixture was subjected to vacuum distillation, drying and cooling to room temperature, then was disintegrated through a RT-25 airflow ultrafine high-speed pulverizer to obtain 1556 g of white powdery product, which was the metallic acrylate composition of Comparative Example 1 without dispersant.
(51) The total theoretical weight of the product was 1612.5 g with a yield of 96.5%; DSC measured from an endothermic onset of 108.24 C. to an endothermic endset of 118.15 C., the endothermic peak (br. s) was 114.75 C. and the enthalpy change was 13.07 J/g, the exothermic onset was 205.17 C., the exothermic peak (br. m) was 208.78 C. and the enthalpy change was >97.70 J/g; .sup.1H-NMR (400 MHz, CDCl.sub.3+d.sub.6DMSO) were 66.22 (dd, J=17 Hz, J=2 Hz), 6.06 (dd, J=17 Hz, J=10 Hz), 5.64 (dd, J=10 Hz, J=2 Hz), 2.20 (t, J=4 Hz), 1.49 (m), 1.15 (br.s), 0.77 (t, J=8 Hz); FTIR (KBr) 2918, 2848, 1941, 1661, 1602, 1536, 1443, 1373, 1277, 1070, 979, 935, 830, 711, 675, 611 cm.sup.1.
Comparative Example 2: Metallic Acrylate Composition (Containing 0.75 wt % Hydrophobic Silica Fume as Dispersant)
(52) A metallic acrylate composition in Comparative Example 2 was prepared substantially in the same way as described in Example 4, the difference is that Comparative Example 2 add another dispersant.
(53) In Comparative Example 2, after the first mixture was prepared by the same procedure as in Example 4, the first mixture was subjected to vacuum distillation, drying and cooling to room temperature, then 12.2 g of hydrophobic silica fume (CAB-O-SIL TS-530 produced by Cabot Corporation: CAS No. 68909-20-6, pH is 4.8 to 7.5, average particle diameter 0.2 m, surface modified by hexamethyldisilazane) was added as a dispersant and then stirring was continued for 2 hours to obtain a second mixture.
(54) The second mixture was taken out of the reaction vessel and was disintegrated through a RT-25 airflow ultrafine high-speed pulverizer to obtain 1567 g of white powdery product, which was the metallic acrylate composition of Comparative Example 2 containing 0.75 wt % dispersant.
(55) The total theoretical weight of the product was 1624.7 g with a yield of 96.4%; DSC measured from an endothermic onset of 104.45 C. to an endothermic endset of 114.15 C., the endothermic peak (br. s) was 110.98 C. and the enthalpy change was 10.68 J/g, the exothermic onset was 201.17 C., the exothermic peak (br. m) was 206.48 C., and the enthalpy change was >86.60 J/g; .sup.1H-NMR (400 MHz, CDCl.sub.3+d.sub.6DMSO) were 66.22 (dd, J=17 Hz, J=2 Hz), 6.02 (dd, J=17 Hz, J=10 Hz), 5.65 (dd, J=10 Hz, J=2 Hz), 2.18 (t, J=6 Hz), 1.48 (m), 1.14 (br. s), 0.76 (m); FTIR (KBr) were 2918, 2848, 1645, 1602, 1536, 1444, 1373, 1276, 1069, 979, 940, 830, 710, 676, 614 cm.sup.1.
Comparative Example 3: Metallic Acrylate Composition (Containing 0.75 wt % Hydrophilic Silica Fume as Dispersant)
(56) A metallic acrylate composition in Comparative Example 3 was prepared substantially in the same way as described in Example 4, and the difference is that Comparative Example 3 adds another dispersant.
(57) In Comparative Example 3, after the first mixture was prepared by the same procedure as in Example 4, the first mixture was subjected to vacuum distillation, drying and cooling to room temperature, then 12.2 g of hydrophilic silica fume (CAB-O-SIL M-5 produced by Cabot Corporation: CAS No. 112945-52-5, pH 3.6 to 4.5, average particle diameter 0.2 jam, without surface modification) was added as a dispersant and then stirring was continued for 2 hours to obtain a second mixture.
(58) The second mixture was taken out of the reaction vessel and was disintegrated through a RT-25 airflow ultrafine high-speed pulverizer to obtain 1560 g of white powdery product, which was the metallic acrylate composition of Comparative Example 3 containing 0.75 wt % dispersant.
(59) The total theoretical weight of the product was 1624.7 g with a yield of 96.0%; DSC measured from an endothermic onset of 105.65 C. to an endothermic endset of 115.48 C., the endothermic peak (br. s) was 112.30 C. and the enthalpy change was 12.43 J/g, the exothermic onset was 201.61 C., the exothermic peak (br. m) was 207.29 C., and the enthalpy change was >104.17 J/g; .sup.1H-NMR (400 MHz, CDCl.sub.3+d.sub.6DMSO) were 66.21 (dd, J=16 Hz, J=2 Hz), 6.03 (dd, J=16 Hz, J=10 Hz), 5.60 (dd, J=12 Hz, J=2 Hz), 2.16 (t, J=8 Hz), 1.46 (m), 1.13 (br. s), 0.74 (m); FTIR (KBr) were 3449 (br), 2918, 2848, 1644, 1574, 1523, 1434, 1373, 1275, 1067, 974, 909, 831, 710, 690, 584, 529, 502, 472 cm.sup.1.
Comparative Example 4: Metallic Acrylate Composition (Containing 0.75 wt % Fatty Acid Metal Salt as Dispersant)
(60) A metallic acrylate composition in Comparative Example 4 was prepared substantially in the same way as described in Example 4, and the difference is that Comparative Example 4 adds another dispersant.
(61) In Comparative Example 4, after the first mixture was prepared by the same procedure as in Example 4, the first mixture was subjected to vacuum distillation, drying and cooling to room temperature, then 12.2 g of fatty acid metal salt (Aflux16 produced by Rhein Chemie Corporation: the melting point between 80 C. to 105 C., a combination of natural fatty acid calcium salt and amide ester wax) was added as a dispersant and then stirring was continued for 2 hours to obtain a second mixture.
(62) The second mixture was taken out of the reaction vessel and was disintegrated through a RT-25 airflow ultrafine high-speed pulverizer to obtain 1560 g of white powdery product, which was the metallic acrylate composition of Comparative Example 3 containing 0.75 wt % dispersant.
(63) The total theoretical weight of the product was 1624.7 g with a yield of 96.0%; DSC measured from an endothermic onset of 95.46 C. to an endothermic endset of 110.46 C., the endothermic peak (br. s) was 105.98 C. and the enthalpy change was 10.84 J/g, the exothermic onset was 201.87 C., the exothermic peak (br. m) was 206.25 C., and the enthalpy change was >76.48 J/g; .sup.1H-NMR (400 MHz, CDCl.sub.3+d.sub.6DMSO) were 66.20 (dd, J=16 Hz, J=1.2 Hz), 6.04 (dd, J=16 Hz, J=8 Hz), 5.60 (dd, J=16 Hz, J=0.8 Hz), 2.18 (t, J=8 Hz), 1.47 (m), 1.14 (br. s), 0.76 (t, J=7.2 Hz); FTIR (KBr) were 3436 (br), 2918, 2848, 1648, 1600, 1538, 1442, 1372, 1276, 1070, 980, 936, 830, 711, 676, 609 cm.sup.1.
Comparative Example 5: DOPO-Modified Metallic Acrylate Composition (without Dispersant)
(64) A metallic acrylate composition in Comparative Example 5 was prepared substantially in the same way as described in Example 5, and the difference is that Comparative Example 5 add no dispersant.
(65) In Comparative Example 5, after the first mixture was prepared by the same procedure as in Example 5, the first mixture was subjected to vacuum distillation, drying and cooling to room temperature, then was disintegrated through a RT-25 airflow ultrafine high-speed pulverizer to obtain 1581 g of white powdery product, which was the metallic acrylate composition of Comparative Example 5 without dispersant.
(66) The total theoretical weight of the product was 1612.5 g with a yield of 98.0%; DSC measured from an endothermic onset of 98.83 C. to an endothermic endset of 109.73 C., the endothermic peak (br. d) was 106.93 C. and the enthalpy change was 12.22 J/g, the exothermic onset was 215.67 C., the exothermic peak (br. s) was 238.07 C., and the enthalpy change was >136.00 J/g; .sup.1H-NMR (400 MHz, CDCl.sub.3+d.sub.6DMSO) were 67.8-7.7 (m), 7.6-7.4 (m) 7.5 (t, J=7.8 Hz), 7.32 (m), 7.24-7.19 (m), 7.10 (t, J=5.6 Hz), 7.04 (d, J=7.6 Hz), 6.12 (d, J=16.8 Hz), 5.95 (dd, J=18 Hz, J=10 Hz), 5.52 (d, J=10 Hz), 2.39-2.15 (m), 2.02 (t, J=7 Hz), 1.38 (m), 1.01 (br. s), 0.71 (m); FTIR (KBr) were 3418 (br), 2918, 2848, 1643, 1561, 1434, 1367, 1274, 1199, 1146, 1120, 1062, 987, 921, 832, 760, 672, 598, 528 cm.sup.1.
(67) The powdery metallic acrylate compositions shown in Formula (I) or Formula (II) can be prepared by way of the Examples 1 to 10 and Comparative Examples 1 to 5, and the difference between the examples and the comparative examples can be referred to Table 1, wherein the difference is whether the metallic acrylate composition contains the dispersant, the type of the dispersant and the concentration of the dispersant.
(68) Table 1: Comparison of metallic acrylate compositions of Examples 1 to 10 and Comparative Examples 1 to 5
(69) TABLE-US-00001 The Metallic Species of Acrylate Metallic Dispersant Composition Acrylate Concentration Species (Trade name) Example 1 As 0.3 wt % PTFE wax (L-5F) Formula(I) Example 2 As 0.3 wt % PTFE-modified PE wax Formula(I) (DEUREX F63A) Example 3 As 0.3 wt % PTFE-modified PE wax Formula(I) (DEUREX F61A) Example 4 As 0.75 wt % PTFE-modified PE wax Formula(I) (DEUREX F61A) Example 5 As 0.1 wt % PTFE wax (L-5F) Formula (II) Example 6 As 3 wt % PTFE wax (L-5F) Formula (II) Example 7 As 5 wt % PTFE wax (L-5F) Formula (II) Example 8 As 0.1 wt % PTFE-modified PE wax Formula (II) (DEUREX F61A) Example 9 As 3 wt % PTFE-modified PE wax Formula (II) (DEUREX F61A) Example 10 As 5 wt % PTFE-modified PE wax Formula (II) (DEUREX F61A) Comparative As no dispersant Example 1 Formula(I) Comparative As 0.75 wt % hydrophobic silica fume Example 2 Formula(I) (CAB-O-SIL TS-610) Comparative As 0.75 wt % hydrophilic silica fume Example 3 Formula(I) (CAB-O-SIL M-5) Comparative As 0.75 wt % fatty acid metal salt Example 4 Formula(I) (Aflux 16) Comparative As no dispersant Example 5 Formula (II)
(70) To testify that the metallic acrylate compositions provided by the present invention have a better stability and dispersibility during storage or transport, Test Example 1 was simulated the powdery metallic acrylate compositions which are subjected to heavy pressure during storage or transport; Test Example 2 and Test Example 6 were simulated adding the powdery metallic acrylate compositions to different resin rubbers, and tested the dispersibility, the property of sticking equipment and the property of Surface Agglomeration of the resin compositions; and Test Example 3 to Test Example 5 tested the dispersibility, the property of sticking equipment and the property of Surface Agglomeration of the resin compositions after adding the catalysts.
Test Example 1: Compaction Test of Metallic Acrylate Composition Having Formula (I)
(71) 100 g of the metallic acrylate composition powder was weighed in each of the Examples and Comparative Examples and put into an aluminum foil bag having a size of 10 cm10 cm, the air in the aluminum foil bag was exhausted and then the bag was sealed by heat, and a 4-kilogram flange was placed on the heat-sealed aluminum foil bag then do the compaction test in 50 C. oven, so as to simulate the weight and temperature conditions that the metallic acrylate composition may encounter during the storage or transport. The test time of Test Example 1 is in units of months, and the appearance of the Examples and the Comparative Examples are listed in Table 2.
(72) Table 2: Appearances of the powdery metallic acrylate composition of Examples 1 to 4 and Comparative Examples 1 to 4 before compaction, after one month of compaction and after two months of compaction.
(73) TABLE-US-00002 Metallic Acrylate Before After one month of After two month of Composition compaction compaction compaction Example 1 Powder and a Mostly The interior of the little false agglomerated into central sample agglomeration small caking, easy agglomerated into to crush caking, easy to crush Example 2 Powder and a Partially The interior of the little false agglomerated into central sample agglomeration small caking, easy agglomerated into to crush caking, easy to crush Example 3 Powder and a Partially The interior of the little false agglomerated into central sample agglomeration small caking, easy agglomerated into to crush caking, easy to crush Example 4 Powder and a Partially The interior of the little false agglomerated into central sample agglomeration small caking, easy agglomerated into to crush caking, easy to crush Comparative Powder and a Mostly Agglomerated into Example 1 little false agglomerated into compacted caking, agglomeration caking, easy to hard to crush crush Comparative Fluffy powder Mostly The interior of the Example 2 agglomerated into central sample caking, easy to agglomerated into crush compacted, slightly hard to crush Comparative Fluffy powder Mostly The interior of the Example 3 agglomerated into central sample caking, easy to agglomerated into crush compacted caking, slightly hard to crush Comparative Powder and a Poor initial Poor initial Example 4 little false dispersibility, no dispersibility, no agglomeration compaction test compaction test arranged arranged
Test Example 2: Dispersion Test of the Metallic Acrylate Composition Having Formula (I) (Butadiene Rubber Masterbatch)
(74) 1. Preparation of the Butadiene Rubber Masterbatch
(75) The gap between the rollers in the two-roll mill (brand: Xufeng, model: HF-2RM) was set to 2.5 mm, and butadiene rubber was uniformly softened and mixed in a two-roll mill in the longitudinal and horizontal directions for 1 minute, followed by adding zinc oxide, zinc stearate, dicumyl peroxide and pigment powder, and then the additives and the butadiene rubber were mixed in a two-roll mill for 5 minutes to 8 minutes, thus forming a mixed butadiene rubber masterbatch. Thereafter, the butadiene rubber masterbatch was rolled to a sheet having a thickness of 2 mm to 3 mm for use.
(76) In the butadiene rubber masterbatch, the contents of the additives were 100 parts by weight of butadiene rubber, 23.2 parts by weight of zinc oxide, 3 parts by weight of zinc stearate, 1.5 parts by weight of diisopropylperoxide benzene and 0.7 parts by weight of pigment powder.
(77) 2. Dispersion Test of the Metallic Acrylate Composition in Butadiene Rubber Masterbatch
(78) 100 parts by weight of a butadiene rubber masterbatch were added into a brabender (brand: Brabender, model: PL-2100) and mixed at a speed of 19 rpm for 1 minute, and then 18.4 parts by weight of metallic acrylate composition were added then mixed at speed of 100 rpm for 1 minute; next, the speed was adjusted to 22 rpm and mixed for 1 minute to form a butadiene rubber composition, and then the butadiene rubber composition was pressed to form a sheet having a thickness of 2 mm at pressure of 20 kg/cm.sup.2. The dispersion results of the metallic acrylate composition with the mixed masterbatch was observed.
(79) After the preparation of cis-butadiene resin composition is completed, the rotor and the inner wall of the brabender were observed by an operator and another person skilled in the art to determine whether any sample was adhered to the rotor and the inner wall and whether any agglomeration or white spot was formed on the surface of the sample. The score was evaluated according to the observation results which are divided into six levels by scores: None (5 points), Slight (4 points), A few (3 points), Partial (2 points), Much (1 point), Serious (0 points). The total scores were summed up from the two persons; the higher the total score demonstrate the better dispersion. The results are shown in Table 3.
(80) Table 3: The results of the metallic acrylate compositions of Examples 1 to 4 and Comparative Examples 1 to 4 mixed with the butadiene rubber masterbatch before and after the compaction to form a rubber composition that adhered to the equipment and agglomerated on the surface
(81) TABLE-US-00003 Dispersion Test Dispersion Test Initial Dispersion after one month after two month Metallic Test of compaction of compaction Rubber Acrylate Equipment Surface Equipment Surface Equipment Surface Formula Composition Adhesion Agglomeration Adhesion Agglomeration Adhesion Agglomeration butadiene Example 1 9 10 6 8 4 8 rubber Example 2 9 10 9 10 8 10 master Example 3 9 10 9 10 8 10 batch Example 4 9 10 9 10 8 10 Comparative 9 10 2 2 2 2 Example 1 Comparative 8 10 6 8 4 6 Example 2 Comparative 4 6 4 6 2 4 Example 3 Comparative 2 2 Untested Untested Example 4
(82) As shown in the results of Table 3, the rubber which was added with the metallic acrylate composition of the present invention demonstrates better dispersibility than the rubber which was added with the comparative metallic acrylate composition, and was less likely to stick onto the equipment, and was also less likely to agglomerate after the compaction. Therefore, it is concluded that the product has better stability after the long-term delivery or storage.
Test Example 3: Dispersion Test of the Metallic Acrylate Composition Having Formula (I) (Neodymium-Catalyzed Butadiene Rubber)
(83) In the industry, metallic acrylates are often used with neodymium-catalyzed butadiene rubber, therefore, Test Example 3 mainly tests the dispersibility with neodymium-catalyzed butadiene rubber, the test method of Test Example 3 was similar to Test Example 2, and the neodymium-catalyzed butadiene rubber (trade name CB23) purchased from Lanxess was added.
(84) Besides, in order to observe the dispersion effect of the metallic acrylate composition with beodymium-catalyzed butadiene rubber, after completing preparation of the cis-butadiene rubber composition, it was visually observed the residue of sample onto the rotor and inner wall of the spectrometer, and the agglomeration or any white spots on the surface of the sample after rolling. The results are shown in Table 4 below.
(85) In the same operating and scoring method as in Test Example 2, the prepared metallic acrylate composition was contained in a heat-sealed aluminum foil bag then compacted by a 4-kilogram weight flange at 50 C. oven to simulate the compaction and temperature conditions to the metallic acrylate composition during the delivery or storage. After one month of compaction, the aforementioned procedure of the dispersion test was repeated and the results are shown in Table 4.
(86) Table 4: The metallic acrylate compositions of Examples 1 to 3 and Comparative Example 1 before and after compaction, and the score results of the dispersion with neodymium-catalyzed butadiene rubber masterbatch
(87) TABLE-US-00004 Neodymium Dispersion Test after one catalyst Metallic Initial Dispersion Test month of compaction Butadiene rubber Acrylate Equipment Surface Equipment Surface (trade name) Composition Adhesion Agglomeration Adhesion Agglomeration CB23 Example 1 6 10 6 10 Example 2 6 10 6 8 Example 3 10 10 8 10 Comparative 2 6 2 2 Example 1
Test Example 4: Dispersion Test of Metallic Acrylate Composition Having Formula (I) (Nickel-Catalyzed Butadiene Rubber)
(88) In the industry, metallic acrylates are often used with nickel-catalyzed butadiene rubber, so Test Example 4 mainly tests dispersibility with nickel-catalyzed butadiene rubber. The test method is similar to Test Example 2, and the nickel-catalyzed butadiene rubber available from Goodyear (trade name: 1207G) or available from KUMHO (trade name: KBR01) are used.
(89) Also in order to observe the dispersion effect of the metallic acrylate composition of the present invention with nickel-catalyzed butadiene rubber, after the preparation of the cis-butadiene rubber composition was completed, it was visually observed the residue of sample onto the rotor and inner wall of the brabender, and the agglomeration or any white spots on the surface of the sample after rolling, and the visual inspection results are shown in Table 5. In the same method as in Test Example 2, the prepared metallic acrylate composition was contained in a heat-sealed aluminum foil bag then compacted by a 4 kilogram weight flange at 50 C. oven to simulate the compaction and temperature conditions during the delivery or storage. After one month of compaction, the same procedure for the dispersion test was repeated and the results are shown in Table 5.
(90) Table 5: The score results of metallic acrylate compositions of Examples 1 to 3 and Comparative Example 1 before and after compaction were mixed with the nickel-catalyzed butadiene rubber.
(91) TABLE-US-00005 Nickel catalyst Dispersion Test after one butadiene Metallic Initial Dispersion Test month of compaction rubber(trade Acrylate Equipment Surface Equipment Surface name) Composition Adhesion Cohesion Adhesion Cohesion 1207G Example 1 9 10 9 10 Example 2 9 10 9 10 Example 3 10 10 10 10 Comparative 6 6 4 6 Example 1 KBR01 Example 1 6 8 6 8 Example 2 6 8 4 6 Example 3 9 10 9 10 Comparative 2 4 2 2 Example 1
Test Example 5: Dispersion Test of Metallic Acrylate Composition Having Formula (I) (Cobalt Catalyzed Butadiene Rubber)
(92) In the industry, metallic acrylates are often used with cobalt-catalyzed butadiene rubber. Therefore, Test Example 5 mainly tests dispersibility with cobalt-catalyzed butadiene rubber. The test method was similar to of the Test Example 2, and the cobalt-catalyzed butadiene rubber available from Lanxess (trade name: CB1221 and CB1203) were used.
(93) Also in order to observe the dispersion effect of the metallic acrylate composition of the present invention with cobalt-catalyzed butadiene rubber, after the preparation of the cis-butadiene rubber composition, it was visually observed the residue of sample onto the rotor and inner wall of the brabender, and the agglomeration or any white spots on the surface of the sample after rolling, and the visual inspection results are shown in Table 6.
(94) In the same method as in Test Example 2, the prepared metallic acrylate composition was contained in a heat-sealable aluminum foil bag then compacted by a 4 kilogram weight flange at 50 C. oven to simulate the compaction and temperature conditions during the delivery or storage of the acrylic metal salt composition. After one month of compaction, the same procedure of the dispersion test was repeated and the results are shown in Table 6.
(95) Table 6: The score results of metallic acrylate compositions of Examples 1 to 3 and Comparative Example 1 before and after compaction were mixed with cobalt-catalyzed butadiene rubber masterbatch to form a rubber composition.
(96) TABLE-US-00006 Cobalt catalyst Dispersion Test after one butadiene Metallic Initial Dispersion Test month of compaction rubber(trade Acrylate Equipment Surface Equipment Surface name) Composition Adhesion Cohesion Adhesion Cohesion CB1221 Example 1 6 10 4 6 Example 2 4 4 4 4 Example 3 8 10 6 8 Comparative 2 4 2 2 Example 1 CB1203 Example 1 6 6 4 6 Example 2 6 6 6 6 Example 3 8 10 8 8 Comparative 2 4 2 2 Example 1
Test Example 6: Dispersion Test of the Metallic Acrylate Composition Having Formula (II) (Mixed Ethylene-Propylene Rubber Masterbatch)
(97) 1. Preparation of the Mixed EPDM Rubber Masterbatch
(98) The setting temperature and rotation speed of the brabender was 100 C. and 80 rpm, and EPDM, carbon black, zinc oxide and stearic acid were added in sequence, and then the processing oil was added slowly to make the above raw materials form a mixed EPDM rubber masterbatch, which was then subjected to cold press under pressure of 50 kg/cm.sup.2 and pressed to form a sheet for use.
(99) In the mixed EPDM rubber masterbatch, the contents of the raw material were 100 parts by weight of ethylene propylene diene monomer, 100 parts by weight of the processing oil, 50 parts by weight of the carbon black, 5 parts by weight of zinc oxide and 1 part by weight of stearic acid.
(100) 2. Dispersion Test of the Metallic Acrylate Compositions Having Formula (II)
(101) The setting temperature and rotation speed of the brabender was 60 C. and 20 rpm. 100 parts by weight of EPDM rubber masterbatch were added and mixed for one minute, and then 20 parts by weight of metallic acrylate composition having Formula (II) and 0.3 parts by weight of dicumyl peroxide were added, pressed with a pressure rod and then mixed at a speed of 100 rpm for 1 minute, next, the speed was adjusted to 20 rpm for another 1-minute mixing to form an EPDM rubber composition, which was then pressed under pressure of 20 kg/cm.sup.2 by a cold press to form a sheet having a thickness of 2 mm.
(102) In order to observe the dispersion effect of the metallic acrylate composition in rubber, after completion of preparing the ethylene-propylene rubber composition, the results are shown in Table 7 in a manner similar score method to that of Test Example 2.
(103) Table 7: The results of equipment adhesion and surface agglomeration of the rubber compositions formed by blending the metallic acrylate compositions of Examples 5 to 10 and Comparative Example 5 with EPDM masterbatch
(104) TABLE-US-00007 Initial Dispersion Test Rubber Metallic Acrylate Equipment Surface Formula Composition Adhesion Agglomeration EPDM Example 5 6 8 rubber Example 6 10 10 masterbatch Example 7 10 10 Example 8 6 8 Example 9 10 10 Example 10 10 10 Comparative 2 2 Example 5
(105) 3 The Method of Curing Curve Analysis
(106) 6 g of EPDM rubber composition was placed into a closed-type rheometer (manufacturer: Ektrontek, model: EKT-2000S) for curing curve analysis (control parameters 170 C./10 min/swing angle 0.5), the minimum torque (M.sub.L), maximum torque (M.sub.H), scorch time (Ts2) and vulcanization time (Tc90) were recorded to compare the influence of dispersibility on the vulcanization process, and the results were listed in Table 8.
(107) 4. The Method of Film Vulcanization Molding and Mechanical Strength Analysis
(108) 30 g of EPDM rubber composition was weighted in the heat compression molding machine (manufacturer: Cometech, Model: QC-602A) at curing conditions of 170 C., 12 minutes, 100 kg/cm.sup.2 to form a 1201202 mm of the test piece. After the test piece was cooled for 16 hours, the test piece was cut with a dumbbell-shaped cutting tool (ISO 37 type II) and then subjected to mechanical strength analysis by a tensile tester (model AI-7000S) at 500 mm/min, the number of tests should be at least three samples, and the test results are shown in Table 8.
(109) Table 8: Vulcanization curve analysis of the ethylene-propylene-diene rubber resin compositions of Examples 5 to 10 and Comparative Example 5 and mechanical strength analysis after vulcanization molding.
(110) TABLE-US-00008 Study of Mechanical Strength Analysis of Vulcanization Curve Elongation Minimum Maximum Scorch Cure Tensile at 100% torque torque Time Time Strength Break modulus (dN .Math. m) (dN .Math. m) (min) (min) (psi) (%) (psi) Example 5 0.29 4.69 1.6 5.4 494 475 135 Example 6 0.29 4.92 1.4 5.5 512 454 164 Example 7 0.27 3.85 2.3 5.2 408 572 126 Example 8 0.28 4.75 1.5 5.3 511 489 138 Example 9 0.27 4.57 1.6 5.3 514 487 165 Example 0.26 4.37 1.7 5.4 463 475 165 10 Comparative 0.29 4.53 1.7 5.5 459 518 123 Example 5
(111) According to Table 8, compared with the results of Comparative Example 5, the metallic acrylate composition of the present invention not only improves residue issue onto equipment and surface defects during mixing with the rubber, but also has a better dispersibility, and thus can be quickly and evenly dispersed in the rubber, increase the reactivity between the rubber and curing agent, so as to improve the crosslinking density of rubber and enhance the mechanical strength of the final product.
(112) In summary, the metallic acrylate composition can effectively alleviate the problem of agglomeration caused by self-polymerization due to temperature or compaction during long-term storage and delivery, and has a better stability. In addition, compared with common dispersing auxiliaries in the industry, the metallic acrylate composition demonstrate good dispersibility in various catalyzed rubbers. Therefore, the present invention can solve the operational problems that the powder easily adheres to the equipment after mixing with auxiliaries and different rubbers, and there is no agglomeration or white spots on the surface of the flaky samples formed, which can increase reactivity between the rubber and the curing agent and the crosslinking density of rubbers, and thus improve the mechanical strength of the product.