HIGH VOLTAGE COMPONENTS

Abstract

The present invention relates to high-voltage components, especially for electromobility, comprising polymer compositions based on at least one polyester and 10,10′-oxybis-12H-phthaloperin-12-one, and to the use of 10,10′-oxybis-12H-phthaloperin-12-one for production of polyester-based products, with the proviso of a color difference ΔE<20 from the L*a*b* coordinates of a color number beginning with “2” in the RAL color chart, and to the use of 10,10′-oxybis-12H-phthaloperin-12-one for marking of polyester-based products as high-voltage components.

Claims

1. A high-voltage component based on polymer compositions comprising at least one polyester and 10,10′-oxybis-12H-phthaloperin-12-one.

2. The high-voltage component as claimed in claim 1, wherein A) per 100 parts by mass of at least one polyester, B) 0.01 to 5 parts by mass of 10,10′-oxy-bis-12H-phthaloperin-12-one are used.

3. The high-voltage component as claimed in claim 1, wherein the polyester used is a polycarbonate or a C.sub.2-C.sub.10-polyalkylene terephthalate.

4. The high-voltage component as claimed in claim 1, wherein laser-absorbing additives are omitted.

5. The high-voltage component as claimed in claim 1, wherein, in addition to components A) and B), also C) at least one filler and/or reinforcer is used.

6. The high-voltage component as claimed in claim 5, wherein, in addition to components A), B) and C) or instead of C), also D) at least one flame retardant is used.

7. The high-voltage component as claimed in claim 5, wherein the filler and/or reinforcer should be selected from the group of glass beads or solid or hollow glass beads, or glass fibers, ground glass, amorphous quartz glass, aluminum borosilicate glass having an alkali content of 1% (E glass), amorphous silica, quartz flour, calcium silicate, calcium metasilicate, magnesium carbonate, kaolin, calcined kaolin, chalk, kyanite, powdered or ground quartz, mica, phlogopite, barium sulfate, feldspar, wollastonite, montmorillonite, pseudoboehmite of the formula AlO(OH), magnesium carbonate and talc.

8. The high-voltage component as claimed in claim 6, wherein the flame retardant should be selected from mineral flame retardants, nitrogen-containing flame retardants and phosphorus-containing flame retardants.

9. The high-voltage component as claimed in claim 7, wherein the additive E) used is at least one heat stabilizer selected from the group of sterically hindered phenols.

10. The high-voltage component as claimed in claim 2, wherein the additive E) used is at least one laser absorber selected from the group of antimony trioxide, tin oxide, tin orthophosphate, barium titanate, aluminum oxide, copper hydroxyphosphate, copper orthophosphate, potassium copper diphosphate, copper hydroxide, antimony tin oxide, bismuth trioxide and anthraquinone.

11. The high-voltage component as claimed in claim 1, wherein it comprises covers for electrics or electronics, control devices, covers/housings for fuses, relays, battery cell modules, fuse holders, fuse plugs, terminals, cable holders or sheathings.

12. A process for production of polyester-based high-voltage components or for marking of polyester-based products as high-voltage components, comprising the step of adding 10,10′-oxybis-12H-phthaloperin-12-one to polyester.

13. The process according to claim 12, wherein the polyester used is polycarbonate or C.sub.2-C.sub.10-polyalkylene terephthalate.

14. The process according to claim 12, wherein the products or high-voltage components have a color difference ΔE<20 from the L*a*b* coordinates of a color number beginning with “2” in the RAL color chart, and a laser transparency at a wavelength of 980 nm of at least 5%.

15. The process according to claim 12, wherein the products or high-voltage components have a color difference ΔE<20 from the L*a*b* coordinates of a color number beginning with “2” in the RAL color chart, and comprise at least one laser absorber selected from the group of antimony trioxide, tin oxide, tin orthophosphate, barium titanate, aluminum oxide, copper hydroxyphosphate, copper orthophosphate, potassium copper diphosphate, copper hydroxide, antimony tin oxide, bismuth trioxide and anthraquinone.

16. A process for producing high-voltage components, wherein A) at least one polyester and B) 10,10′-oxybis-12H-phthaloperin-12-one, are mixed with one another to give polymer compositions, discharged to give strands, cooled until pelletizable, dried and pelletized, and the polymer compositions are subsequently subjected to further processing by injection molding, including the specialized processes of gas injection technology, WIT water injection technology and projectile injection technology, by extrusion processes, including profile extrusion, or by blow molding.

17. The high-voltage component as claimed in claim 1, wherein the polyester used is polybutylene terephthalate.

18. The high-voltage component as claimed in claim 1, wherein, in addition to components A) and B), also C) at least one filler and/or reinforcer is used in an amount of 1 to 150 parts by mass based on 100 parts by mass of component A).

19. The high-voltage component as claimed in claim 5, wherein, in addition to components A), B) and C) or instead of C), also D) at least one flame retardant is used in an amount of 3 to 100 parts by mass based on 100 parts by mass of component A).

20. The process according to claim 16 for producing high-voltage components for electromobility, wherein A) at least one polyester and B) 0.01 to 5 parts by mass of 10,10′-oxybis-12H-phthaloperin-12-one per 100 parts by mass of at least one polyester, are mixed with one another to give polymer compositions, discharged to give strands, cooled until pelletizable, dried and pelletized, and the polymer compositions are subsequently subjected to further processing by injection molding, including the specialized processes of gas injection technology, WIT water injection technology and projectile injection technology, by extrusion processes, including profile extrusion, or by blow molding.

Description

EXAMPLES

[0294] The improvements in properties described in accordance with the invention were demonstrated by first making up corresponding polyester-based polymer compositions by compounding. For this purpose, the individual components were mixed in a twin-screw extruder (ZSK 25 Compounder from Coperion Werner & Pfleiderer (Stuttgart, Germany)) at temperatures in the range from 260 to 320° C., discharged as a strand, cooled until pelletizable and pelletized. After drying (generally for two days at 80° C. in a vacuum drying cabinet), the pellets were processed by injection molding at temperatures in the range from 270 to 300° C. to give standard test specimens for the respective tests.

[0295] In the context of the present tests, bleeding was measured via the discoloration of a 30.Math.20.Math.2 mm.sup.3 plasticized PVC film (P-PVC, FB110 white, standard low temperature resistance from Jedi Kunststofftechnik GmbH, Eitorf, Germany) which was stored in a hot air drying cabinet at 80° C. for 12 hours clamped between 2 plastic sheets of dimensions 60.Math.40.Math.2 mm.sup.3 based on the compositions described in table 2. This was followed by visual evaluation according to the gray scale of ISO 105-A02, with ‘5’ meaning that the PVC film showed no color change and ‘1’ meaning that the PVC film showed a significant color change.

Reactants:

[0296] Component A) Linear polybutylene terephthalate (Pocan® B 1300, commercially available product of Lanxess Deutschland GmbH, Cologne, Germany) having an intrinsic viscosity of 93 cm.sup.3/g (measured in phenol: 1,2-dichlorobenzene=1:1 at 25° C.) [0297] Component B): 10,10′-Oxybis-12H-phthaloperin-12-one [CAS No. 203576-97-0] from Angene International Limited, London [0298] Component X/1): 12H-Phthaloperin-12-one [CAS No. 6925-69-5] in the form of Macrolex® Orange 3G from Lanxess Deutschland GmbH, Cologne

TABLE-US-00002 TABLE II Ex. 1 Comp. 1 Component A) parts by mass 100 100 Component B) parts by mass 0.3 Component X/1) parts by mass 0.3 Bleeding Gray scale 4 2 Transmission Classification n.d.

[0299] The results in tab. II show that inventive example 1 shows laser transparency with simultaneously lower bleeding than the material colored with component X/1 according to the prior art in comp. 1. The plastic plaques examined in inventive example 1 had a RAL color value of 2009 with a ΔE of <5. n.d. stands for “not determined” at the filing date of this invention.

[0300] Laser transparency of the specimens analyzed in the context of the present application was measured in the near IR (NIR) at a laser wavelength of 980 nm in accordance with DVS-Richtlinie 2243 (January 2014) “Laserstrahlschweißen thermoplastischer Kunststoffe” using plaques having dimensions of 60 mm.Math.60 mm.Math.2 mm with the LPKF TMG3 transmittance analyzer from LPKF Laser & Electronics AG, Garbsen, Germany, calibrated beforehand with an analytical standard generated according to DIN EN ISO/IEC 17025; see: LPKF AG 101016-DE: “Einfache Transmissionsmessung für Kunststoffe LPKF TMG3”. The assessment and classification was made as a relative comparison of laser transmittance compared to a test plaque without component B) to be used in the invention. [0301] Classification (+): Transmittance of the test plaques comprising ingredients to be used in accordance with the invention including component B) was at least 80% of the transmittance of an analogous test plaque where only component B) was absent. [0302] Classification (−): Transmittance of the test plaques comprising ingredients to be used in accordance with the invention including component B) was less than 80% of the transmittance of an analogous test plaque where only component B) was absent.