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Abstract

This disclosure relates to curable silicone rubber compositions suitable for use in the manufacture of cured-in-place gaskets (CIPGs), silicone elastomers resulting from the cure of such compositions and methods for making CIPGs from such compositions. The inclusion of a compound having at least two trialkoxysilyl groups, at least two dialkoxyalkylsilyl groups or a mixture of two or more trialkoxysilyl groups, and dialkoxyalkylsilyl groups per molecule selected from: (i) (R¹⁰)_z (R¹¹)_3-z Si—(W)—Si (R¹¹)_3-z (R¹⁰)_z; or (ii) 1,3,5-tris[3-((R¹⁰)_z(R¹¹)_3-z Si)-D]-1,3,5-triazine-2,4,6(1H,3H,5H)-trione where each R¹¹ is independently an alkoxy group having 1 to 6 carbons; each R¹⁰ is independently R¹¹ or an alkyl group having 1 to 6 carbons, z is 0 or 1; W is a linear or branched alkylene having 1 to 12 carbons; and D is an alkylene group having from 1 to 6 carbons; provides CIPGs which show both a good adhesion to aluminium and a good compression set.

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First Claim