Method of molding plastic products having chemically bonded prot

Details Method of molding plastic products having chemically bonded prot Method of molding plastic products having chemically bonded prot

1989-04-06

1991-03-19

Lowe, James

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Producing multilayer work or article

264135, 264138, 264265, 264266, 264267, B29C 4514

Patent

active

050009036

ABSTRACT:
Coated plastic products are prepared by chemically bonding a protective coating material to at least a portion of the surface of a plastic substrate, by disposing a web of a protective coating material over the cavity of a mold, and thereafter injecting polymeric precursor materials into the mold behind the web thereby conforming the web to the surface of the mold cavity. As the polymeric precursor materials react in situ to form the plastic substrate, they also chemically bond to the protective coating material.

REFERENCES:
patent: 3390214 (1968-06-01), Woods
patent: 3502760 (1970-03-01), Omo
patent: 3801244 (1974-04-01), Eisenberg
patent: 4278629 (1981-07-01), Bennett
patent: 4339144 (1982-07-01), Nagasaka
patent: 4622191 (1986-11-01), Takeuchi
patent: 4639341 (1987-01-01), Hanamoto et al.

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