Gasket having polysiloxane sealant layer containing organotitana

Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member

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Details

277230, 277234, 277235A, 156329, F16J 1512

Patent

active

042203422

ABSTRACT:
A gasket and a process for preparing it are disclosed in which the gasket comprises a base sheet and a sealant layer strongly adhered to it. The sealant layer comprises a polymerized, solid organopolysiloxane having an organotitanate dispersed therein. The organotitanate has a dual role. It retards the polymerization rate of the organopolysiloxane to provide a longer pot life which facilitates working with the polysiloxane. Also, the organotitanate acts as a coupling agent and greatly increases the adherence of the organopolysiloxane layer to the base sheet.

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