C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 83/07 (2006.01) C08L 83/04 (2006.01)
Patent
CA 2056200
THERMOSETTING ORGANOPOLYSILOXANE COMPOSITION Abstract of the Disclosure A thermosetting organopolysiloxane composition which cures to an elastomer having unusually high fatigue resistance is produced by mixing a vinyl group-containing organopolysiloxane gum, a microparticulate silica having a specific surface area of at least 250 m2/g and bearing no more than 0.50 weight percent water, a hydroxyl group-endblocked organopolysiloxane preferably having vinyl groups, and a curing agent. Flexural life under constant elongation of over 400 x 104 cycles are shown.
Hamada Mitsuo
Hasegawa Chi-Ichiro
Hirono Kenji
Yoshikawa Tomoji
Dow Corning Toray Silicone Company Ltd.
Gowling Lafleur Henderson Llp
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