Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent
1976-12-13
1978-12-26
Jacobs, Lewis T.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C08L 8304
Patent
active
041315880
ABSTRACT:
A low moisture vapor transmission rate room temperature vulcanizable silicone composition comprising a silanol end-stopped diorganopolysiloxane with optionally a reinforcing or extending filler, an alkyl silicate crosslinking agent or in the alternative a co-polymer composed of monofunctional and tetrafunctional units and a catalyst which is the metal salt of carboxylic acid such as dibutyl tin dilaurate where the improvement comprises having in such a composition from 75 to 150 parts by weight of a vapor barrier filler which is mica with optionally up to 30% by weight of said vapor barrier filler being talc, wherein the above concentration of filler is based upon 100 parts of the silanol end-stopped diorganopolysiloxane polymer. Also in the present invention there is envisioned as SiH Olefin platinum catalyzed composition which has the foregoing mica as a vapor barrier filler.
REFERENCES:
patent: 2843555 (1958-07-01), Berridge
patent: 2984590 (1961-05-01), Anderson
patent: 3126357 (1964-03-01), Liebig
patent: 3888815 (1975-06-01), Bessmer et al.
patent: 3969310 (1976-07-01), Itoh et al.
General Electric Company
Jacobs Lewis T.
Koltos E. Philip
Neuhauser Frank L.
Young John L.
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