RESIN COMPOSITION FOR MOLDING AND MOLDED ARTICLE

Abstract

The present invention provides a resin composition for molding having excellent thermal meltability and capable of providing a molded article that is less likely to crack from a resin weld during use and has excellent surface gloss, and a molded article including the resin composition for molding. Provided is a resin composition for molding, containing: a chlorinated polyvinyl chloride resin; a polyvinyl chloride resin; and a melt additive, the resin composition having an area ratio of a peak B observed in a range of 0.6 to 1.0 ppm to a peak A observed in a range of 9.5 to 10 ppm (Area of peak B/Area of peak A) of 1 to 1,000 when a .sup.1H NMR spectrum is measured by solution NMR.

Claims

1. A resin composition for molding, comprising: a chlorinated polyvinyl chloride resin; a polyvinyl chloride resin; and a melt additive, the resin composition having an area ratio of a peak B observed in a range of 0.6 to 1.0 ppm to a peak A observed in a range of 9.5 to 10 ppm (Area of peak B/Area of peak A) of 1 to 1,000 when a .sup.1H NMR spectrum is measured by solution NMR.

2. The resin composition for molding according to claim 1, wherein the chlorinated polyvinyl chloride resin contains structural units (a) to (c) represented by the following formulas (a) to (c), the structural unit (a) being present in a proportion of 5 mol % or more and 90 mol % or less, the structural unit (b) being present in a proportion of 5 mol % or more and 40 mol % or less, the structural unit (c) being present in a proportion of 5 mol % or more and 55 mol % or less, based on the total number of moles of the structural units (a), (b), and (c), and the polyvinyl chloride resin is contained in an amount of 1 to 30 parts by mass based on 100 parts by mass of the chlorinated polyvinyl chloride resin:
[Chem. 1]
—CH.sub.2—CHCl—  (a)
—CH.sub.2—CCl.sub.2—  (b)
—CHCl—CHCl—  (c).

3. The resin composition for molding according to claim 1, wherein the melt additive has an area ratio of a peak B observed in a range of 0.6 to 1.0 ppm to a peak A observed in a range of 9.5 to 10 ppm (Area of peak B/Area of peak A) of 1 to 1,000 when a .sup.1H NMR spectrum is measured by solution NMR.

4. The resin composition for molding according to claim 1, wherein the melt additive is contained in an amount of 0.01 to 18 parts by mass based on 100 parts by mass of the chlorinated polyvinyl chloride resin.

5. A molded article molded from the resin composition for molding according to claim 1.

6. The resin composition for molding according to claim 2, wherein the melt additive has an area ratio of a peak B observed in a range of 0.6 to 1.0 ppm to a peak A observed in a range of 9.5 to 10 ppm (Area of peak B/Area of peak A) of 1 to 1,000 when a .sup.1H NMR spectrum is measured by solution NMR.

7. The resin composition for molding according to claim 2, wherein the melt additive is contained in an amount of 0.01 to 18 parts by mass based on 100 parts by mass of the chlorinated polyvinyl chloride resin.

8. The resin composition for molding according to claim 3, wherein the melt additive is contained in an amount of 0.01 to 18 parts by mass based on 100 parts by mass of the chlorinated polyvinyl chloride resin.

9. The resin composition for molding according to claim 6, wherein the melt additive is contained in an amount of 0.01 to 18 parts by mass based on 100 parts by mass of the chlorinated polyvinyl chloride resin.

10. A molded article molded from the resin composition for molding according to claim 2.

11. A molded article molded from the resin composition for molding according to claim 3.

12. A molded article molded from the resin composition for molding according to claim 4.

13. A molded article molded from the resin composition for molding according to claim 6.

14. A molded article molded from the resin composition for molding according to claim 7.

15. A molded article molded from the resin composition for molding according to claim 8.

16. A molded article molded from the resin composition for molding according to claim 9.

Description

DESCRIPTION OF EMBODIMENTS

[0155] The present invention is hereinafter described in more detail with reference to examples; however, the present invention should not be limited to the examples.

Preparation of Chlorinated Polyvinyl Chloride Resin A

[0156] A glass-lined reaction vessel having an inner capacity of 300 L was charged with 130 kg of deionized water and 50 kg of a polyvinyl chloride resin having an average degree of polymerization of 800. They were stirred to disperse the polyvinyl chloride resin in water to prepare an aqueous suspension, and then the inside of the reaction vessel was heated to raise the temperature of the aqueous suspension to 70° C. Subsequently, the inside of the reaction vessel was depressurized to remove oxygen (oxygen content 100 ppm). Thereafter, while stirring was performed such that the vortex formed at the liquid-gas interface by stirring had a vortex volume of 2.2 L, chlorine (oxygen content 50 ppm) was introduced at a partial pressure of chlorine of 0.04 MPa, and then irradiation of ultraviolet light having a wavelength of 365 nm was performed at an irradiation intensity of 350 W with a high-pressure mercury lamp, thereby starting chlorination reaction.

[0157] Then, the chlorination temperature was kept at 70° C. and the partial pressure of chlorine was kept at 0.04 MPa. The average chlorine consumption rate was adjusted to 0.02 kg/PVC-kg.Math.5 min. When the amount of added chlorine reached 10.6% by mass, the irradiation of ultraviolet light with the high-pressure mercury lamp and the supply of chlorine gas were terminated, whereby chlorination was terminated.

[0158] Next, unreacted chlorine was removed by nitrogen gas aeration, followed by washing with water, dehydration, and drying. Accordingly, a powdery chlorinated polyvinyl chloride resin A (amount of added chlorine: 10.6% by mass) was obtained.

Evaluation of Chlorinated Polyvinyl Chloride Resin

(1) Measurement of Amount of Added Chlorine

[0159] The amount of added chlorine in the obtained chlorinated polyvinyl chloride resin was measured in conformity with JIS K 7229.

(2) Molecular Structure Analysis

[0160] The molecular structure of the obtained chlorinated polyvinyl chloride resin was analyzed in conformity with the NMR measurement method described in R. A. Komoroski, R. G. Parker, J. P. Shocker, Macromolecules, 1985, 18, 1257-1265 so as to determine the amount of the structural units (a), (b), and (c).

[0161] The NMR measurement conditions were as follows.

Apparatus: FT-NMRJEOLJNM-AL-300

[0162] Measured nuclei: 13C (proton complete decoupling)
Pulse width: 90°

PD: 2.4 sec

[0163] Solvent: o-dichlorobenzene:deuterated benzene (C5D5)=3:1
Sample concentration: about 20%

Temperature: 110° C.

[0164] Reference material: central signal for benzene set to 128 ppm
Number of scans: 20,000

(3) Pulse NMR Measurement

[0165] The obtained chlorinated polyvinyl chloride resin was placed in a glass sample tube having a diameter of 10 mm (produced by BRUKER, Product No. 1824511, 10 mm in diameter, 180 mm in length, flat bottom) so as to fall within the measurement range of a pulse NMR apparatus. The sample tube was set in the pulse NMR apparatus (produced by BRUKER, “the minispec mq20”) and subjected to measurement by the solid echo method at 100° C. (after holding for 20 minutes) under the conditions below, thereby obtaining a free induction decay curve of .sup.1H spin-spin relaxation.

Solid Echo Method

[0166] Scans: 128 times
Recycle delay: 1 sec
Acquisition scale: 1.0 ms

[0167] The free induction decay curve up to 0.5 ms obtained at 100° C. was subjected to waveform separation into two curves derived from the A.sub.100 component and the B.sub.100 component. The waveform separation was performed by fitting to both a Gaussian model and an exponential model. The percentages of the two components were determined from the curves derived from the components obtained in the measurement.

[0168] Using analysis software “TD-NMRA (Version 4.3, Rev. 0.8)” produced by BRUKER, a Gaussian-model fitting was applied to the A.sub.100 component, and an exponential model fitting was applied to the B.sub.100 component in conformity with the product manual.

[0169] The following equation was used in the fitting.

[00001]$\begin{array}{cc}Y=A\times \exp \left(-\frac{1}{2}\times {\left(\frac{t}{T_A}\right)}^2\right)+B\times \exp \left(-\frac{t}{T_B}\right)& \left[\mathrm{Math}.1\right]\end{array}$

[0170] In the formula, A represents the percentage of the A.sub.100 component, B represents the percentage of the B.sub.100 component, T.sub.A represents the relaxation time of the A.sub.100 component, T.sub.B represents the relaxation time of the B.sub.100 component, and t represents time.

[0171] The A.sub.100 component and the B.sub.100 component are components defined in order of shorter relaxation time in pulse NMR measurement. The value of the relaxation time of each component is not limited. Usually, the relaxation time of the A.sub.100 component is less than 0.020 ms, and the relaxation time of the B.sub.100 component is 0.020 ms or more.

(4) Weight Average Molecular Weight Measurement

[0172] A sample was dissolved in THF, and filtered through a filter having a pore size of 0.2 μm before the weight average molecular weight was measured using a GPC unit (pump unit: PU-4180, detector unit: RI-4030, column oven: CO-4065) produced by JASCO Corporation and SHODEX columns LF-804 (two columns connected). The measurement was performed by eluting the sample at a measurement flow rate of 0.7 ml/min and an oven temperature of 40° C. and determining the weight average molecular weight using a calibration curve base generated with standard polystyrene equivalent.

Preparation of Melt Additive X1

[0173] Raw material polyethylene (5 kg) was fed and melted in a 23-L small polymerizer equipped with a thermometer, a manometer, a stirring device, a gas inlet tube, and a gas exhaust tube. After the internal temperature reached 145° C., the stirring device was set to 250 rotations/min, and air was introduced into the molten product at 1.0 L/min. The raw material polyethylene used was Hi-WAX 800P (produced by Mitsui Chemicals, Inc., molecular weight 8,000, density 970 kg/m.sup.3, crystallinity 84%, melting point 127° C., softening point 140° C.). The pressure inside the polymerizer was adjusted to 0.69 MPa via a control valve on the gas exhaust tube side. While air was introduced, the reaction temperature was maintained at 145° C., the stirring speed was maintained at 250 rotations/min, and the pressure was maintained at 0.69 MPa. The reaction was terminated after five hours, whereby a melt additive X1 was obtained. Here, the crystallinity of the polyethylene was measured by X-ray diffractometry.

Preparation of Melt Additive Y1

[0174] A melt additive Y1 was obtained in the same manner as the melt additive X1 except that instead of Hi-WAX 800P, Hi-WAX 720P (produced by Mitsui Chemicals, Inc., molecular weight 7,200, density 920 g/m.sup.3, crystallinity 60%, melting point 113° C., softening point 118° C.) was used as the polyethylene.

Melt Additive Evaluation

(1) .SUP.1.H NMR Spectrum

[0175] The obtained melt additive was dissolved in o-dichlorobenzene-d.sub.4 at 130° C. A 400 MHz .sup.1H NMR spectrum was measured by solution NMR using a Bruker spectrometer AV400 model at 130° C. to measure the area ratio of a peak B observed in the range of 0.6 to 1.0 ppm to a peak A observed in the range of 9.5 to 10 ppm.

(2) Melting Point

[0176] The obtained melt additive was subjected to measurement using a differential scanning calorimetry (DSC) device (produced by TA Instruments—Waters LLC, DSC Q20) at a heating rate of 3° C./min in a temperature range of 20° C. to 200° C. in a nitrogen atmosphere.

(3) Molecular Structure Analysis

[0177] An NMR spectrum was used to measure the percentages of the structural units (1) to (3).

[0178] Here, X in the formula (2) was at least one of a hydroxy group, a carboxy group, or an ether group (having an alkyl group bonded thereto).

(4) Weight Average Molecular Weight Measurement

[0179] The weight average molecular weight was measured by a method in conformity with JIS-K-7367-1 (viscosity method).

Preparation of Melt Additives X2 to X7

[0180] Melt additives X2 to X7 were obtained by adjusting the molecular structure, the weight average molecular weight (Mw), and the melting point as shown in Table 1. The raw material polyethylenes used were as follows.

[0181] Melt additive X2: polyethylene (molecular weight: 9,000, density: 970 kg/m.sup.3, crystallinity: 84%, melting point: 133° C., softening point: 142° C.)

[0182] Melt additive X3: polyethylene (molecular weight: 7,000, density: 980 kg/m.sup.3, crystallinity: 83%, melting point: 131° C., softening point: 140° C.)

[0183] Melt additive X4: polyethylene (molecular weight: 9,100, density: 973 kg/m.sup.3, crystallinity: 84%, melting point: 134° C., softening point: 143° C.)

[0184] Melt additive X5: polyethylene (molecular weight: 2,000, density: 970 kg/m.sup.3, crystallinity: 84%, melting point: 124° C., softening point: 129° C.)

[0185] Melt additive X6: polyethylene (molecular weight: 4,000, density: 980 kg/m.sup.3, crystallinity: 62%, melting point: 128° C., softening point: 135° C.)

[0186] Melt additive X7: polyethylene (molecular weight: 7,200, density: 920 kg/m.sup.3, crystallinity: 84%, melting point: 113° C., softening point: 118° C.)

Preparations of Melt Additives Y2 to Y5

[0187] Melt additives Y2 to Y5 were obtained by adjusting the molecular structure, the weight average molecular weight (Mw), and the melting point as shown in Table 1. For melt additives Y2 and Y3, the temperature and pressure during reaction were as shown in Table 1. The raw material polyethylenes used were as follows.

[0188] Melt additive Y2: polyethylene (molecular weight: 21,000, density: 890 kg/m.sup.3, crystallinity: 84%, melting point: 140° C., softening point: 145° C.)

[0189] Melt additive Y3: polyethylene (molecular weight: 1,400, density: 920 kg/m.sup.3, crystallinity 84%, melting point: 114° C., softening point: 120° C.)

[0190] Melt additive Y4: polyethylene (molecular weight: 18,000, density: 900 kg/m.sup.3, crystallinity: 48%, melting point: 91° C., softening point: 99° C.)

[0191] Melt additive Y5: polyethylene (molecular weight: 1,600, density: 930 kg/m.sup.3, crystallinity: 99.5%, melting point: 109° C., softening point: 114° C.)

Example 1

Preparation of Resin Composition for Molding

[0192] To 100 parts by mass of the chlorinated vinyl chloride resin A (amount of added chlorine: 10.6% by mass, degree of polymerization: 800) were added 1.0 part by mass of the melt additive X1 and 2.0 parts by mass of a butyltin mercaptan compound (produced by Nitto Kasei Co., Ltd., TVS #1360) as a thermal stabilizer. Further, 10.0 parts by mass of diene rubber particles (methyl methacrylate-butadiene-styrene copolymer, produced by Kaneka Corporation, Kane Ace B-564) as an impact resistance modifier and 8.5 parts by mass of a polyvinyl chloride resin (chlorine content: 56.7% by mass, degree of polymerization: 700) were added and mixed.

[0193] Moreover, 1.5 parts by mass of glycerol monostearate (produced by Riken Vitamin Co., Ltd., Rikemal S-100) and 1.0 part by mass of an ester lubricant (produced by Riken Vitamin Co., Ltd., Rikester SL-02) as lubricants were added. They were then uniformly mixed in a super mixer, whereby a resin composition for molding was obtained.

Examples 2 to 13

[0194] A resin composition for molding was obtained as in Example 1 except that the amount of the polyvinyl chloride resin (chlorine content: 56.7% by mass, degree of polymerization: 700) added and the type and amount of the melt additive added were changed as shown in Table 1.

Comparative Example 1

[0195] A resin composition for molding was obtained as in Example 1 except that the melt additive Y1 was used instead of the melt additive X1.

Comparative Examples 2 to 5

[0196] A resin composition for molding was obtained as in Example 1 except that the type and the amount of the melt additive added were changed as shown in Table 1.

Evaluation

[0197] The resin compositions for molding obtained in the examples and the comparative examples were evaluated as follows. Table 1 shows the results.

(1) Solution NMR Measurement

[0198] The obtained resin composition for molding was dissolved in o-dichlorobenzene-d.sub.4 at 130° C. A 400 MHz .sup.1H NMR spectrum was measured by solution NMR using a Bruker spectrometer AV400 model at 130° C. to measure the area ratio of a peak B observed in the range of 0.6 to 1.0 ppm to a peak A observed in the range of 9.5 to 10 ppm.

(2) Crack Stretching Evaluation

[0199] The obtained resin composition for molding was injection-molded in an injection molding machine IS50EP produced by Toshiba Corporation. In injection molding, the resin temperature upon purging was adjusted to the range of 205° C. to 220° C., and injection was performed at an injection speed of 8%, a holding pressure of 30 MPa, a pressure-holding time of one second, and a screw rotation speed of 68 rpm.

[0200] A dumbbell-shaped specimen (length: 173.5 mm, width of the middle portion: 10 mm, ends: 20 mm) was prepared such that a resin weld was formed in the middle portion of the specimen.

[0201] The specimen was subjected to a crack stretching test until the specimen completely ruptured. The test was performed using EHF-ED1KNX4-4LA produced by Shimadzu Corporation at 23° C., 1 Hz, and a test stress of 75 kgf/cm.sup.2. The results were evaluated in accordance with the following criteria. Specifically, the test was performed by repeating the following cycle one time per second (1 Hz): stress application at 10% of the test stress (7.5 kgf/cm.sup.2).fwdarw.tension (stress application) to 75 kgf/cm.sup.2 (test stress).fwdarw.returning to 10% of the test stress. The number of cycles until rupture was evaluated in accordance with the following criteria.

A: Ruptured after 12,000 or more cycles.
B: Ruptured after 10,000 or more and less than 12,000 cycles.
C: Ruptured after 8,000 or more and less than 10,000 cycles.
D: Ruptured after less than 8,000 cycles.

(3) Thermal Meltability Evaluation

[0202] The obtained resin composition for molding was subjected to a thermal meltability evaluation using Labo Plastmill 410 (produced by Toyo Seiki Seisaku-Sho, Ltd.) at a set temperature of 195° C., a rotation speed of 50 rpm, preheating of two minutes, and a sample input amount of 63 g. The time (thermal melting speed) at which the maximum value of the measured torque peak waveform was observed was determined, and evaluated in accordance with the following criteria.

A: 5 seconds or less
B: more than 5 seconds and less than 10 seconds
D: 10 seconds or more

(4) Surface Gloss Evaluation

[0203] The gloss (gloss unit) was measured using a spectrophotometer (CM-26dG, produced by Konica Minolta, Inc.) with SAV (Small Area of View: measurement diameter of about φ3 mm), and evaluated in accordance with the following criteria. The light source used was a pulsed xenon lamp.

A: a gloss of 30 GU or more
B: a gloss of 25 GU or more and less than 30 GU
C: a gloss of 20 GU or more and less than 25 GU
D: a gloss of less than 20 GU

TABLE-US-00001 TABLE 1 Example 1 2 3 4 5 6 7 8 Resin Amount of added % by mass 10.6 10.6 10.6 10.6 10.6 10.6 10.6 10.6 composition polyvinyl Molecular weight (Mw) — 100557 100557 100557 100557 100557 100557 100557 100557 for molding chloride Structure Structural unit (a) mol % 55 55 55 55 55 55 55 55 resin Structural unit (b) mol % 25 25 25 25 25 25 25 25 Structural unit (c) mol % 20 20 20 20 20 20 20 20 Amount parts by 100 100 100 100 100 100 100 100 mass Polyvinyl Chlorine content % by mass 56.7 56.7 56.7 56.7 56.7 56.7 56.7 56.7 chloride Amount parts by 8.5 8.5 8.5 8.5 8.5 8.5 8.5 8.5 resin mass Production Temperature ° C. 145 145 145 145 145 145 145 145 additive method Pressure MPa 0.69 0.69 0.69 0.69 0.69 0.69 0.69 0.69 Structure Structural unit (1) mol % 95.80 95.80 95.80 96.70 95.80 70.32 75.06 95.80 Structural unit (2) mol % 4.10 3.69 3.69 1.14 3.69 29.05 24.42 3.69 Structural unit (3) mol % 0.10 0.10 0.10 0.00 0.10 0.04 0.02 0.10 Before Crystalability % 84.0 84.0 84.0 93.0 84.0 84.0 62.0 84.0 modification After Molecular weight (Mw) — 8667 10400 10400 7200 10600 2480 4100 10400 modification Melting point ° C. 126 126 126 126 126 121 126 126 Type — X1 X2 X2 X3 X4 X5 X6 X2 Amount parts by 1.0 12.0 1.0 1.0 1.0 1.0 1.0 5.0 mass Structural — 0.07 0.07 0.07 0.02 0.07 0.53 0.44 0.07 Molecular weight of melt additive/Molecular — 0.09 0.10 0.10 0.07 0.11 0.02 0.04 0.10 weight of  chloride resin Impact  rubber particles parts by 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 resistance mass Thermal Butyl parts by 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 stabilizer mass Lubricant Glycerol parts by 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 mass  lubricant parts by 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 mass Evaluation Pulse 100° C. Percentage A % 88.0 88.0 88.0 88.0 88.0 88.0 88.0 88.0 polyvinyl NMR B % 12.0 12.0 12.0 12.0 12.0 12.0 12.0 12.0 chloride resin Solution Area of — 35 34 34 33 5 950 1050 35 additive NMR Resin Solution Area of — 800 5 500 950 951 947 999 250 composition NMR Crack stretching evaluation Measured 12600 10100 12000 11500 12000 9900 8500 11000 value A B A B A C C B Thermal Measuring 8 5 6 7 8 7 8 5 value B A B B B B B A Surface gloss Measured 33 38 37 34 37 22 27 35 value A A A A A C B A Example Comparative Example 9 10 11 12 13 1 2 3 4 5 Resin Amount of added % by mass 10.6 10.6 10.6 10.6 10.6 10.6 10.6 10.6 10.6 10.6 composition polyvinyl Molecular weight (Mw) — 100557 100557 100557 100557 100557 100557 100557 100557 100557 100557 for molding chloride Structure Structural unit (a) mol % 55 55 55 55 55 55 55 55 55 55 resin Structural unit (b) mol % 25 25 25 25 25 25 25 25 25 25 Structural unit (c) mol % 20 20 20 20 20 20 20 20 20 20 Amount parts by 100 100 100 100 100 100 100 100 100 100 mass Polyvinyl Chlorine % by mass 56.7 56.7 56.7 56.7 56.7 56.7 56.7 56.7 56.7 56.7 chloride content resin Amount parts by 8.5 8.5 0.5 25.0 35.0 8.5 8.5 8.5 8.5 8.5 mass Production Temperature ° C. 145 145 145 145 145 145 120 180 145 145 additive method Pressure MPa 0.69 0.69 0.69 0.69 0.69 0.69 0.69 0.69 0.69 0.69 Structure Structural unit (1) mol % 95.80 95.80 95.80 95.80 95.80 70.30 98.90 99.60 60.30 99.80 Structural unit (2) mol % 3.69 3.69 3.69 3.69 3.69 29.07 0.54 0.27 24.60 0.09 Structural unit (3) mol % 0.10 0.10 0.10 0.10 0.10 0.04 0.50 0.10 14.60 0.09 Before Crystalability % 84.0 84.0 84.0 84.0 84.0 60.0 84.0 84.0 48.0 99.5 modification After Molecular weight (Mw) — 10400 7300 10400 10400 10400 7692 21538 1538 18462 1692 modification Melting point ° C. 126 126 126 126 126 110 136 111 90 107 Type — X2 X7 X2 X2 X2 Y1 Y2 Y3 Y4 Y5 Amount parts by 10.0 15.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 mass Structural — 0.07 0.07 0.07 0.07 0.07 0.53 0.01 0.00 0.45 0.00 Molecular weight of melt additive/Molecular — 0.10 0.07 0.10 0.10 0.10 0.06 0.21 0.02 0.18 0.02 weight of  chloride resin Impact  rubber parts by 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 resistance particles mass Thermal Butyl parts by 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 stabilizer mass Lubricant Glycerol parts by 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 mass  lubricant parts by 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 mass Evaluation Pulse 100° C. Percentage A % 88.0 88.0 88.0 88.0 88.0 88.0 88.0 88.0 88.0 88.0 polyvinyl NMR B % 12.0 12.0 12.0 12.0 12.0 12.0 12.0 12.0 12.0 12.0 chloride resin Solution Area of — 35 35 35 35 35 1150 0.7 0.5 1500 0.3 additive NMR Resin Solution Area of — 82 318 951 885 990 1100 0.3 0.4 1400 0.2 composition NMR Crack stretching evaluation Measured 10800 8800 12200 13000 10200 7500 7400 5050 7000 4800 value B C A A B D D D D D Thermal Measuring 5 4 8 8 8 13 12 18 12 17 value A A B B B D D D D D Surface gloss Measured 36 29 37 36 38 12 19 13 17 12 value A B A A A D D D D D indicates data missing or illegible when filed

[0204] The present invention can provide a resin composition for molding having excellent thermal meltability and capable of providing a molded article that is less likely to crack from a resin weld during use and has excellent surface gloss, and a molded article including the resin composition for molding.