Organosiloxane compositions yielding optically clear, non-yellow

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...

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528 15, C08F28300

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active

055480381

ABSTRACT:
The present invention provides organosiloxane compositions that cure to optically transparent gels by a hydrosilation reaction and contain a) two types of alkenyl-substituted organopolysiloxanes, and b) a diorganopolysiloxane containing an average of at least two silicon-bonded hydrogen atoms per molecule that are located on non-terminal silicon atoms. The molar ratio of silicon-bonded hydrogen atoms to alkenyl radicals in the composition is from 0.1 to 1.2.

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patent: 5086147 (1992-02-01), Ikeno et al.
patent: 5362781 (1994-11-01), Stein
patent: 5366809 (1994-11-01), Schmidt et al.
patent: 5371163 (1994-12-01), Wilson
patent: 5373078 (1994-12-01), Juen et al.

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