UTILIZACAO DE ALCOOIS ALDA-ACETILENICOS DE CADEIA COMPRIDA COMO INIBIDORES DA REACCAO DE HIDROSSILILACAO E SUA UTILIZACAO PARA A PREPARACAO DE COMPOSICOES DE SILICONES ENDURECIVEIS ESTAVEIS

摘要

Acetylenic alcohol which is an inhibitor of hydrosilylation reactions, of formula R - (R') C (OH) - C IDENTICAL CH (I> where . R is a linear or branched alkyl radical, or a phenyl radical; . R' is H or R; it being possible for the radicals R and R' and the carbon atom located alpha to the triple bond optionally to form a ring; the total number of carbon atoms contained in R and R' being at least 9. Its use as a hydrosilylation inhibitor in curable compositions based on an oil based on silicone containing alkenyl functional groups and/or on an adhesion modifier resin containing SiAlkenyl functional groups, optionally on an adhesion modifier resin containing SiH functional groups, on a silicone crosslinking agent containing SiH functional groups and on a hydrosilylation catalyst.