Method of coinjection molding of thermoplastic and thermoplastic

Details Method of coinjection molding of thermoplastic and thermoplastic Method of coinjection molding of thermoplastic and thermoplastic

1980-10-20

1983-05-24

Lowe, James B.

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

2643287, 264262, 425112, B29H 308

Patent

active

043850251

ABSTRACT:
Vibration isolators are manufactured by a co-injection molding process. Outer and inner parts of the isolators are molded first from a rigid or stiff thermoplastic material such as polystyrene and intermediate spring-like parts of the isolators are made of a thermoplastic elastomer such as copolymer of butadiene and styrene formed and bonded to the outer and inner parts in a subsequent molding step.

REFERENCES:
patent: 3485911 (1969-12-01), Reyburn
patent: 3608049 (1971-09-01), Tavella
Application Selection Guide, Bulletin CS-178, Barry Wright Corp., 1978.

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