Waterproof seealer for connectors

Details Waterproof seealer for connectors Waterproof seealer for connectors

1996-12-30

1997-09-16

Glass, Margaret W.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

523211, 524268, 524588, 524731, 524862, 528 15, C08G 7708

Patent

active

056682255

ABSTRACT:
An oil-bleeding waterproof sealer for a connector comprising a vulcanized and molded article of a composition comprising: (A) 100 parts by weight of a diorganopolysiloxane green rubber containing at least two alkenyl groups bonded to silicon atoms per molecule thereof, (B) from 10 to 100 parts by weight of a reinforcing filler, (C) from 0.1 to 10 parts by weight of an organohydrogenopolysiloxane having at least two hydrogen atoms bonded to silicon atoms per molecule thereof, (D) from 1 to 30 parts by weight of a phenyl-containing diorganopolysiloxane having a viscosity of 1 to 3,000 cSt at 25.degree. C., and (E) a catalytic amount of a catalyst for hydrosilylation having a particle size of 0.01 to 20 .mu.m, which comprises a platinum catalyst and a non-silicone series thermoplastic resin having a glass transition point of 50.degree. to 200.degree. C., with the proportion of metallic platinum in the catalyst for hydrosilylation being 0.01 to 5% by weight.

REFERENCES:
patent: 4481341 (1984-11-01), Schlak et al.
patent: 4742101 (1988-05-01), Yoshida
patent: 4766176 (1988-08-01), Lee et al.
patent: 5015691 (1991-05-01), Lewis et al.
patent: 5153238 (1992-10-01), Bilgrien et al.
patent: 5232959 (1993-08-01), Togashi et al.

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