HIGH VOLTAGE COMPONENTS

Abstract

The present invention relates to high-voltage components, in particular for electromobility, containing polymer compositions based on at least one polyamide and 10,10′-oxybis-12H-phthaloperin-12-one, and to the use of 10,10′-oxybis-12H-phthaloperin-12-one for marking polyamide-based articles of manufacture as high-voltage components.

Claims

1. A polymer composition comprising at least one polyamide and 10,10′-oxybis-12H-phthaloperin-12-one.

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

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

4. The polymer composition or high-voltage component as claimed in claim 3, wherein A) per 100 parts by mass of at least one polyamide, B) 0.01 to 3 parts by mass of 10,10′-oxybis-12H-phthaloperin-12-one are used, with the proviso that no laser-absorbent additives are used.

5. The polymer composition or high-voltage component as claimed in claim 4, wherein in that, in addition to components A) and B), also C) at least one filler and/or reinforcer is used.

6. The polymer composition or 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 polymer composition or high-voltage component as claimed in claim 5, wherein, in addition to components A), B), C) and D) or instead of C) and/or D), also E) at least one further additive other than components B), C) and D) is used.

8. The polymer composition or 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.

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

10. The polymer composition or high-voltage component as claimed in claim 7, wherein additive E) used is at least one heat stabilizer.

11. The polymer composition or high-voltage component as claimed in claim 7, wherein A) per 100 parts by mass of at least one polyamide, B) 0.01 to 5 parts by mass of 10,10′-oxybis-12H-phthaloperin-12-one, C) 1 to 150 parts by mass of at least one filler and reinforcer, and E) 0.01 to 2 parts by mass of at least one heat stabilizer, are used.

12. The polymer composition or high-voltage component as claimed in claim 7, wherein A) per 100 parts by mass of at least one polyamide, B) 0.01 to 5 parts by mass of 10,10′-oxybis-12H-phthaloperin-12-one, C) 1 to 150 parts by mass of at least one filler and reinforcer, D) 3 to 100 parts by mass of at least one flame retardant additive, and E) 0.01 to 2 parts by mass of at least one heat stabilizer, are used.

13. A process for the production of polyamide-based products, with the proviso that these have a color distance ΔE<20 from the L*a*b* coordinates of a color number beginning with “2” in the RAL color chart, and have a laser transparency at a wavelength of 980 nm of at least 10%, comprising the step of adding of 10,10′-oxybis-12H-phthaloperin-12-one to polyamide.

14. A process for producing laser-transparent high-voltage components, having a color distance 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 10%, by mixing A) at least one polyamide and B) 10,10′-oxybis-12H-phthaloperin-12-one, with one another to give polymer compositions, extruding to give strands, cooling until pelletizable, drying and pelletizing, and then subjecting the polymer compositions to further processing by injection molding, including the special methods of gas injection technology, water injection technology and projectile injection technology, by extrusion methods, including profile extrusion, or by blow molding, wherein no laser absorber is used.

15. The high-voltage component as claimed in claim 2, 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, especially sheathings of high-voltage bus bars and high-voltage distributor bus bars.

16. The high-voltage component according to claim 2, with the proviso that these have a color distance ΔE<20 from the L*a*b* coordinates of a color number beginning with “2” in the RAL color chart.

17. The polymer composition or high-voltage component as claimed in claim 4, 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).

18. The polymer composition or 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).

19. The polymer composition or high-voltage component as claimed in claim 5, wherein, in addition to components A), B), C) and D) or instead of C) and/or D), also E) at least one further additive other than components B), C) and D) is used, in an amount of 0.01 to 80 parts by mass based on 100 parts by mass of component A).

20. The process for producing high-voltage components for electromobility, according to claim 14, having a color distance ΔE<10 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 10%, by mixing A) at least one polyamide 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 polyamide, with one another to give polymer compositions, extruding to give strands, cooling until pelletizable, drying and pelletizing, and then subjecting the polymer compositions to further processing by injection molding, including the special methods of gas injection technology, water injection technology and projectile injection technology, by extrusion methods, including profile extrusion, or by blow molding, wherein no laser absorber is used.

Description

EXAMPLES

[0335] To demonstrate the improvements in properties described in accordance with the invention, corresponding polyamide-based polymer compositions were first made up 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 between 270 and 300° 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 290° C. to give standard test specimens for the respective tests.

[0336] In the context of the present tests, a measure of bleeding was considered to be 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 two 60.Math.40.Math.2 mm.sup.3 plastic sheets based on the compositions shown 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.

[0337] In the context of the present invention, a measure of lightfastness was considered to be the discoloration of the molding compounds described in Table 2 in the form of 60.Math.40.Math.2 mm.sup.3 sheets after storage under UV with UV light (Suntest CPS+, 300-800 nm, 45-130 klx, with window glass filter 250-765 W/m.sup.2 from Atlas Material Testing Technology GmbH, Linsengericht, Germany) for 96 h. Discoloration was evaluated visually based on the blue wool scale according to DIN EN ISO 105-B02, with ‘8’ representing exceptional lightfastness (little color change) and ‘1’ representing very low lightfastness (significant color change).

[0338] Reactants: [0339] Component A) nylon-6 (Durethan® B26, from Lanxess Deutschland GmbH, Cologne, Germany) [0340] Component B): 10,10′-oxy-bis-12H-phthaloperin-12-one [CAS No. 203576-97-0] from Angene International Limited, London [0341] 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) Pts. by wt. 100 100 Component B) Pts. by wt. 0.3 Component X/1 Pts. by wt. 0.3 Bleeding Gray scale 5 4 Lightfastness Blue wool scale 7 6 Laser [%] 27 n.d. transparency

[0342] The results in Tab. II show that inventive example 1 showed laser transparency with simultaneously lower bleeding than the material colored with component X/1 according to the prior art in comp. 1, and additionally had higher lightfastness as well. The plastic plaques examined in inventive example 1 had an RAL color value of 2001 with a ΔE of <10. n.d. stands for “not determined” at the filing date of the present invention.

[0343] Laser transparency of the specimens analyzed in the context of the present application was measured in the near infrared (NIR) at a laser wavelength of 980 nm in accordance with DVS-Richtlinie 2243 (01/2014) “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”.