Method for prevention of bubble formation in polyorganosiloxane

Details Method for prevention of bubble formation in polyorganosiloxane Method for prevention of bubble formation in polyorganosiloxane

1984-06-29

1985-04-16

Lawrence, Evan K.

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427387, 4274071, 4274072, 4274121, 4284255, 428429, 428447, 428448, B05D 302, B05D 724, B32B 2708, B32B 2728

Patent

active

045116202

ABSTRACT:
Bubble formation at the interface between an organosiloxane gel that is curable by a hydrosilation reaction and a substrate possessing potential nucleation sites for bubbles can be prevented if the substrate is first coated with an uncured extrudable silicone rubber composition that is curable by hydrosilation reaction in addition to being compatible with and adherent to the gel. The gel is then applied over the uncured silicone rubber composition and the two materials are concurrently cured. The cured rubber composition exhibits a durometer hardness value of at least 10 on the Shore A scale.

REFERENCES:
patent: 3284406 (1966-11-01), Nelson
patent: 3708225 (1973-01-01), Miach et al.
patent: 4128299 (1978-12-01), Maher
patent: 4264681 (1981-04-01), Girard et al.
patent: 4455691 (1984-06-01), Redinger et al.

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