| 摘要 |
There is disclosed a curable organopolysiloxane composition suitable for forming an adherent coating on metals which is durable under acidic conditions, said composition comprising: (A) an organopolysiloxane that contains at least 2 alkenyl groups in each molecule; (B) an organopolysiloxane that contains at least 2 silicon-bonded hydrogen atoms in each molecule; (C) a novel adhesion promoter; and (D) a hydrosilylation catalyst, wherein the adhesion promoter is prepared by reacting (a) an amine compound with the general formula RnNH(3-n) in which R denotes a monovalent hydrocarbon group and n is 1 or 2, and (b) an aliphatically unsaturated epoxy compound, and, optionally, condensing the above reaction product with (c) a silicon compound that contains at least two silicon-bonded alkoxy groups in each molecule.
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