Silicone rubber compositions

Details Silicone rubber compositions Silicone rubber compositions

1975-12-23

1977-08-30

Marquis, Melvyn I.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 37SB, 260 4575R, 260 4575P, 260 465UA, 260 465G, 260825, C08L 9100

Patent

active

040453901

ABSTRACT:
The organopolysiloxane compositions comprising (a) a linear diorganopolysiloxane having a block structure composed of alternately linked two kinds of blocks of dimethylsiloxane units on one hand and of dimethylsiloxane units and methylvinylsiloxane units on the other hand, (b) a silica filler, (c) a methylhydrogenpolysiloxane as a crosslinking agent, and (d) a platinum catalyst for accelerating crosslinking by addition reaction. Cured silicone rubber elastomers obtained from the composition have very excellent mechanical properties, especially tear strength.

REFERENCES:
patent: 3844992 (1974-10-01), Antonen

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