Liquid curable polyorganosiloxane compositions

Details Liquid curable polyorganosiloxane compositions Liquid curable polyorganosiloxane compositions

1984-12-13

1985-08-13

Marquis, Melvyn I.

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

Synthetic resins

From silicon reactant having at least one...

528 31, 528 32, 525478, 350 961, 350 9612, 350 9613, C08G 7706

Patent

active

045351414

ABSTRACT:
Curable polyorganosiloxane compositions that can be cured to yield readily deformable, tough, elastomeric gels comprise a liquid triorganosiloxy endblocked polydimethylsiloxane containing terminal vinyl radicals, a resinous organosiloxane polymer containing dimethylvinylsiloxy, trimethylsiloxy and SiO.sub.4/2 groups, a polyorganosiloxane containing at least 3 silicon-bonded hydrogen atoms per molecule, a substantially linear polydimethylsiloxane containing dimethylhydrogensiloxy terminal groups and a catalyst to promote curing of said composition. Gels prepared using preferred embodiments of these curable compositions are transparent and useful as pressure sensitive optical waveguides.

REFERENCES:
patent: 3284406 (1966-11-01), Nelson
patent: 3436366 (1969-04-01), Modic
patent: 3697473 (1972-10-01), Polmanteer et al.
patent: 4128299 (1978-12-01), Maher
patent: 4340709 (1982-07-01), Jeram et al.

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