Reflector produced by consecutive injections of two thermoplasti

Details Reflector produced by consecutive injections of two thermoplasti Reflector produced by consecutive injections of two thermoplasti

1985-02-15

1987-05-26

Buffalow, Edith

Stock material or miscellaneous articles

Vehicle body ornament

428215, 4284747, 350641, B60R 1300

Patent

active

046685421

ABSTRACT:
An automobile headlamp reflector is produced by successive injections of a plastics material comprising a first, internal layer of polyamide forming a skin, a second layer of a charged polyamide with 50.+-.5% mineral and/or organic filler forming a supporting structure, and a third, external layer of polyamide, said first and third layer forming skin surrounding said supporting structure.
The ratio EPI/ES in the optical zone of the reflector is such that the surface does not display a local variation greater than 0.002/mm; EPI and ES being respectively the thicknesses of the first, internal layer and the supporting structure.

REFERENCES:
patent: 3723241 (1973-03-01), Rakus

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