[2009-2010] Top 1 Pneumatic Store nb-sm.net Open 24/7

Rock bottom price, Safety ensure, Professional Service,Join Now!

Tuesday, January 19, 2010

Process for Making a Plasitic Moulded Article with a Decorated Surface

Processes for making a plastic mould article with a decorated surface includes introducing a decorated film in a mould, and filling of the mould with a plastic composition by means of injection moulding. The decorated film is preferably at least one layer consisting essentially of a thermoplastic elastomer containing polyether segments.

The plastic composition is preferably injection moulded to form a moulded article thereof having openings therethrough which are covered by the decorated film. In especially preferred embodiments, the moulded article is a housing front for a cellular telephone.

Claims

1. Process for making a plastic moulded article with a decorated surface, comprising the steps of.(a) introducing in a mould a decorated film which comprises at least one layer consisting essentially of a thermoplastic elastomer containing polyether segments; and(b) filling of the mould with a plastic composition by means of injection moulding to form a moulded article of the plastic composition having openings therethrough which openings are covered by the decorated film.

2. Process according to claim 1, wherein the moulded article is a housing front for a cellular telephone.

3. Process according to claim 1, wherein the thermoplastic elastomer has a hardness of 30-75 Shore D.

4. Process according to claim 1, wherein the thermoplastic elastomer is a copolyether ester.

5. Process according to claim 4, wherein the copolyether ester contains hard segments that are essentially based on Rapid prototype polybutylene terephthalate.

6. Process according to claim 1, wherein the thermoplastic elastomer contains soft segments derived from poly(tetramethylene oxide)glycol or ethylene oxide-terminated poly(propylene oxide)glycol.

7. Process according to claim 1, wherein the film is decorated by means of sublimation printing.

8. Process according to claim 1, wherein the film is transparent or translucent.

9. Process according to claim 1, wherein the at least one layer is a foamed film with a closed cell structure.

10. Process according to claim 1, wherein the film consists of a single layer consisting essentially of a thermoplastic elastomer containing polyether segments.

11. Process according to claim 1, wherein the film comprises at least two layers, of which at least an outer layer consists essentially of a thermoplastic elastomer containing polyether segments and which has been provided with decorations.

12. Process according to claim 11, wherein the at least two layers both consist essentially of a thermoplastic elastomer containing polyether segments, but of different hardness.

13. Process according to claim 1, wherein a plastic composition is used that is based on a polymer that is compatible or miscible with the thermoplastic elastomer containing polyether segments.

14. Process according to claim 13, wherein the plastic composition is based on a thermoplastic polyester and/or a polycarbonate, and the thermoplastic elastomer is a copolyether ester.

15. Process according to claim 14, wherein the plastic composition is a blend of bisphenol-A polycarbonate and acrylonitrile/butadiene/styrene copolymers.

16. Process according to claim 1, wherein the film is laser-markable.

17. Process according to claim 1, wherein the plastic composition is laser-markable.

18. A Plastic mold article which comprises an injection-moulded part having holes, and a decorated film layer adhered to the injection-molded part and covering the holes thereof, wherein the decorated film layer comprises at least one layer consisting essentially of a thermoplastic elastomer containing polyether segments.

19. A plastic moulded article according to claim 18 in the form of a housing front for a cellular telephone.

20. A plastic moulded article according to claim 18, wherein the decorated film layer has soft touch and/or non-slip properties.

21. A plastic moulded article according to claim 18, wherein the decorated film layer is laser-marked.

No comments: