Room temperature vulcanizable polyorganosiloxane composition

Details Room temperature vulcanizable polyorganosiloxane composition Room temperature vulcanizable polyorganosiloxane composition

1978-12-27

1980-08-05

Marquis, Melvyn I.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 18S, 260 37SB, 260 457R, 528 34, 528 38, 528901, C08K 310

Patent

active

042161401

ABSTRACT:
Room temperature vulcanizable polyorganosiloxane composition comprising (A) 100 parts of polydiorganosiloxane in which 0.1 to 25 mole percent of the total organo groups that are attached to silicon atoms are phenyl groups, and having a viscosity of 100 to 1,000,000 cSt at 25.degree. C., and in which silanol-terminated polydiorganosiloxane constitutes more than 60 weight % of the total, (B) 0.1 to 50 parts of an organic silicon compound containing aminoxy groups, (C) 75 to 300 parts of aluminum hydroxide powder having a size of less than 50 microns and (D) 0.000001 to 0.005 parts, calculated platinum, of platinum or a compound thereof. The composition is curable at room temperature whereby it gives an elastomer having low modulus, high elongation, and a self-extinguishing property.

REFERENCES:
patent: 3318898 (1967-05-01), Boissieras et al.
patent: 3711520 (1973-01-01), Pfeifer et al.
patent: 4075154 (1978-02-01), Itoh et al.

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