Method for producing a plastic vehicle part

Patent metadata

Field	Value
Publication number	US-10166706-B2
Application number	US-201515322718-A
Country	US
Kind code	B2
Filing date	Jul 9, 2015
Priority date	Jul 17, 2014
Publication date	Jan 1, 2019
Grant date	Jan 1, 2019

Abstract

A method for producing a plastic vehicle attachment part is described, wherein a polymeric film is laid in an injection mold, the polymeric film having an opaque or semi-opaque imprint or a color pigmentation. The polymeric film is back injected with a polymeric covering part, wherein the polymeric covering part is optically transparent. A polymeric carrier part is sprayed at least on a part of the surface of the polymeric covering part facing away from the polymeric film. A protective layer is applied at least on the polymeric film.

First claim

The invention claimed is:

1. A method for producing a plastic vehicle attachment part comprising the steps of:
laying in an injection mold a polymeric film having an opaque or semi-opaque imprint or a color pigmentation,
back injecting the polymeric film with an optically transparent polymeric covering part,
spraying a polymeric carrier part on at least a part of a surface of the polymeric covering part that faces away from the polymeric film, and
applying a protective layer at least on the polymeric film.

2. The method according to claim 1 , wherein the protective layer is applied on all exposed surfaces of the plastic vehicle attachment part.

3. The method according to claim 1 , wherein the polymeric carrier part is opaque.

4. The method according to claim 1 , wherein the polymeric covering part is injection molded with a thickness from 1 mm to 10 mm.

5. The method according to claim 1 , wherein the polymeric carrier part is injection molded with a thickness from 0.5 mm to 10 mm.

6. The method according to claim 1 , wherein the polymeric covering part comprises polycarbonates (PC), polymethyl methacrylate (PMMA), styrene acrylonitrile (SAN), polyethylene terephthalate (PET), and/or copolymers or mixtures thereof.

7. The method according to claim 1 , wherein the polymeric carrier part comprises polyethylene (PE), polycarbonates (PC), polypropylene (PP), polystyrene, polybutadiene, polynitriles, polyesters, polyurethanes, polymethyl methacrylates, polyacrylates, polyamides, polyethylene terephthalate (PET), polybutylene terephthalate (PBT), and/or copolymers or mixtures thereof.

8. The method according to claim 1 , wherein the protective layer comprises thermal-cured or UV-cured varnishes, and/or mixtures or copolymers thereof.

9. The method according to claim 1 , wherein the polymeric film contains polycarbonates (PC), polymethyl methacrylate (PMMA), polyethylene terephthalate (PET), polybutylene terephthalate (PBT), polycarbonate—polybutylene terephthalate (PBT/PC), styrene acrylonitrile (SAN), and/or copolymers or mixtures thereof.

10. The method according to claim 1 , wherein the polymeric film has a thickness from 0.1 mm to 3 mm.

11. The method according to claim 1 , wherein the polymeric film is pre-formed.

12. The method according to claim 1 , wherein the polymeric film extends over a region of 3% to 30% of an entire surface of the polymeric covering part.

13. The method according to claim 1 , wherein the polymeric film comprises a plurality of individual polymeric films, which respectively extend over a sub-region of the entire surface of the polymeric covering part.

14. A plastic vehicle attachment part comprising:
a polymeric film having an opaque or semi-opaque imprint or a color pigmentation, wherein the polymeric film is back injected with an optically transparent polymeric covering part,
an opaque polymeric carrier part sprayed at least onto a part of a surface of the optically transparent polymeric covering part, and
a protective layer applied at least on the polymeric film.

15. The plastic vehicle attachment part according to claim 14 , wherein the imprint contains organic pigments or inorganic pigments.

16. A method comprising:
using the plastic vehicle attachment part according to claim 14 as an exterior attachment part for a vehicle.

17. The method according to claim 4 , wherein the thickness is from 2 mm to 5 mm.

18. The method according to claim 5 , wherein the thickness is from 1 mm to 5 mm.

19. The method according to claim 1 , wherein the polymeric carrier part comprises acrylonitrile butadiene styrene (ABS), acrylonitrile styrene acrylester (ASA), acrylonitrile butadiene styrene-polycarbonate (ABS/PC), PET/PC, PBT/PC, and/or copolymers or mixtures thereof.

20. The method according to claim 1 , wherein the protective layer contains polysiloxanes, polyacrylates, polymethacrylates, and/or mixtures or copolymers thereof.

Assignees

• Saint Gobain

Inventors

• Benyahia Rym
• Lux Thomas
• Turan Ahmet
• Fournier Nicolas

Classifications

• B29L2031/3052

  Windscreens · CPC title

• B32B27/36

  comprising polyesters · CPC title

• B29K2995/0026

  Transparent · CPC title

• B29L2031/7782

  Glazing · CPC title

• B32B2307/4026

  within the layer by addition of a colorant, e.g. pigments, dyes · CPC title