Crosslinkable organopolysiloxane compositions, comprising;
(1) an organopolysiloxane which contains SiC-bonded radicals with aliphatic carbon-carbon multiple bonds, and
(2) an organopolysiloxane with Si-bonded hydrogen atoms or, instead of (1) and (2), or
(3) an organopolysiloxane which contains SiC-bonded radicals with aliphatic carbon-carbon multiple bonds and Si-bonded hydrogen atoms,
(4) a catalyst which promotes the addition of Si-bonded hydrogen onto an aliphatic multiple bond,
(5) a reinforcing filler
(6) a non-reinforcing filler having an average particle diameter of less than 30 &mgr;m and a BET surface area of less than 30 m
2
/g and, optionally, further substances.
可交联有机聚
硅氧烷组合物,包括
(1) 一种有机聚
硅氧烷,它含有以脂族碳-碳多键键合而成的 SiC 键自由基,和
(2) 含有
硅键氢原子的有机聚
硅氧烷,或代替(1)和(2),或
(3) 一种有机聚
硅氧烷,它含有以脂族碳-碳多键和
硅键氢原子为键的 SiC 键自由基、
(4) 一种催化剂,可促进将
硅键氢添加到脂肪族多键上、
(5) 一种增强填料
(6) 一种非增强填料,其平均颗粒直径小于 30 微米,BET 表面积小于 30 微米; (7) 一种非增强填料,其平均颗粒直径小于 30 微米,BET 表面积小于 30 微米。
2
/g 的非增强填料,以及其他可选物质。