Method for the preparation of heterogeneous silicone rubber mold

Details Method for the preparation of heterogeneous silicone rubber mold Method for the preparation of heterogeneous silicone rubber mold

1991-10-24

1992-11-03

Theisen, Mary Lynn

Plastic and nonmetallic article shaping or treating: processes

Forming articles by uniting randomly associated particles

Liquid binder applied subsequent to particle assembly

264236, 26433111, 428405, 428407, 528 15, 528 24, C08K 334

Patent

active

051606810

ABSTRACT:
A method is disclosed for preparing a heterogeneous silicone rubber molding wherein a portion of the molding is formed from a semicured silicone rubber particulate and a portion from a thermosetting silicone rubber composition. The mold is filled with the particulate and the thermosetting silicone rubber composition, then closed and pressurized and heated, forming the portions into a single body or element by curing the thermosetting silicone rubber composition at the same time that curing of the semicured silicone rubber particulate is brought to completion.

REFERENCES:
patent: 4505848 (1985-03-01), Kobayashi
patent: 4528156 (1985-07-01), Fukuda et al.
patent: 4728687 (1988-03-01), Watanabe et al.
patent: 4783289 (1988-11-01), Shimizu et al.
patent: 4824616 (1989-04-01), Shimizu et al.

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