Method for producing a plastic vehicle part

Patent metadata

Field	Value
Publication number	US-10603826-B2
Application number	US-201816208274-A
Country	US
Kind code	B2
Filing date	Dec 3, 2018
Priority date	Jul 17, 2014
Publication date	Mar 31, 2020
Grant date	Mar 31, 2020

Abstract

A method for producing a plastic vehicle attachment part is described, such that 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

What is claimed is:

1. A method for producing a plastic vehicle attachment part, the method comprising:
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 such that the polymeric film is embedded in the polymeric covering part and the polymeric film and the polymeric covering part together form an exposed surface, wherein the polymeric film extends over a subregion of the exposed surface;
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 4 , wherein the thickness is from 2 mm to 5 mm.

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

7. The method according to claim 6 , wherein the thickness is from 1 mm to 5 mm.

8. 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.

9. 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.

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

11. 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.

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

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

14. 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.

15. 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.

16. 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.

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

18. 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, and wherein the polymeric film is embedded in the polymeric covering part and the polymeric film and the polymeric covering part together form an exposed surface, the polymeric film extending over a subregion of the exposed surface;
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.

19. The plastic vehicle attachment part according to claim 18 , wherein the imprint contains organic pigments or inorganic pigments.

20. A method comprising:
using the plastic vehicle attachment part according to claim 18 as an exterior attachment part for a vehicle.

Assignees

• Saint Gobain

Inventors

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

Classifications

• B29L2031/3052

  Windscreens · CPC title

• B29K2995/0025

  Opaque · CPC title

• B29L2031/3041

  Trim panels · CPC title

• B32B27/36

  comprising polyesters · CPC title

• B32B27/32

  comprising polyolefins {(comprising vinyl (co)polymers or acrylic (co)polymers B32B27/30)} · CPC title