Optically clear liquid silicone rubber

Details Optically clear liquid silicone rubber Optically clear liquid silicone rubber

1996-09-25

1997-08-26

Marquis, Melvyn I.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524789, 524847, 524862, 525478, 525479, 528 15, 528 43, C08K 334

Patent

active

056612109

ABSTRACT:
An optically clear platinum-group metal curable liquid silicone rubber composition having good physical properties. The composition comprises a vinyldimethylsiloxy-terminated polydimethyl(diphenyl)siloxane copolymer comprising about 1 to 20 mole percent diphenylsiloxy units and having a viscosity within a range of about 20,000 mPa.multidot.s to 100,000 mPa.multidot.s at 25.degree. C., vinyldimethylsiloxy-terminated polydimethyl(diphenyl)siloxane copolymer comprising about 1 to 20 mole percent diphenylsiloxy units and having a viscosity within a range of about 50 mPa.multidot.s to 10,000 mPa.multidot.s at 25.degree. C. and optionally comprising up to about 3 mole percent vinyldimethylsiloxy units, a treated reinforcing silica filler, and curing agents.

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