Method for injection molding shaped resin bodies having a scratc

Details Method for injection molding shaped resin bodies having a scratc Method for injection molding shaped resin bodies having a scratc

1989-03-10

1990-03-27

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

To produce composite, plural part or multilayered article

264 83, 2643282, B29C 4516

Patent

active

049118757

ABSTRACT:
Injection molded parts having a scratch resistant surface are produced by applying a liquid mixture of at least one monomer susceptible of free radical polymerization and having more than one polymerizable double bond and of at least one free radical forming initiator to the forming surface of an injection mold, polymerizing the mixture at least partially, and then injecting a thermoplastic or duroplastic molding composition into the closed mold.

REFERENCES:
patent: 3968309 (1976-07-01), Matsuo et al.
patent: 4356230 (1982-10-01), Emanuel et al.
patent: 4776992 (1988-10-01), Irving et al.

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