Organosiloxane compositions
AssigneeDow Corning Corporation
InventorsAndreas Wolf, Andreas Stammer, Robert Dandois
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Abstract
A silicone composition comprising a polymer having siloxane units and two or more silicon bonded hydroxyl or hydrolyzable groups per molecule; a crosslinker; an extender material which is either an alkyl substituted aryl compound such as a heavy alkylate, or a alkylcycloaliphatic compound; and a u.v. light stabilizer comprising a benzotriazole moiety. These compositions are useful, for example as room temperature vulcanizable sealants. They retain color clarity or transparency, even on ageing.
Claims21
A silicone composition comprising (i) a polymer having siloxane units and at least two silicon bonded groups per polymer molecule, the silicon bonded groups being selected from the group consisting of hydroxyl and hydrolysable groups, (ii) a crosslinker and (iii) an extender material comprising a compound selected from the group consisting of alkyl substituted aryl compounds and alkylcycloaliphatic compounds, characterised in that the said silicone composition further comprises a u.v. light stabiliser comprising a benzotriazole moiety.
Dependencies are inferred from the claim text.