Method for fabricating foam gaskets

Details Method for fabricating foam gaskets Method for fabricating foam gaskets

1993-12-23

1995-02-21

Kuhns, Allan R.

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Composite article making

264 50, 2643286, B29C 6722

Patent

active

053913361

ABSTRACT:
A method for fabricating foam gaskets is characterized in that during the separate transport and subsequent mixing in an enclosed chamber of the base and curing agent portions of a two part foamable and curable organosiloxane composition an inert gas is injected in the amount of from 1 to 50 mL per 100 g of the total curable organosiloxane composition. The gas is injected into either the base portion, the curing agent or during or immediately after mixing of the two portions, and the resultant foamable composition is then extruded from a nozzle onto the seal region of the substrate and cured while foaming.

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