Stock material or miscellaneous articles – Composite – Of silicon containing
Patent
1985-10-29
1987-06-09
Marquis, Melvyn I.
Stock material or miscellaneous articles
Composite
Of silicon containing
528 18, 528 34, 528 33, 528901, 428450, 428452, B32B 904
Patent
active
046720030
ABSTRACT:
Novel RTV organopolysiloxane compositions, advantageously two-component compositions, which are easily vulcanized into self-adhesive elastomers having excellent reversion properties, are comprised of (1) at least one alpha, omega-dihydroxydiorganopolysiloxane polymer having a viscosity of from about 500 to 1,000,000 mPa.s at 25.degree. C., the organic radicals of which being monovalent hydrocarbon radicals, (2) at least one filler material therefor, (3) at least one polyalkoxysilane or polyalkoxysiloxane cross-linking agent therefor, (4) a catalytically effective amount of at least one tin catalyst, and (5) at least one silane having the general formula: ##STR1## wherein R is an alkyl or alkoxy radical having from 1 to 4 carbon atoms, at least 2 of said radicals R being alkoxy radicals, R' is an alkyl radical having from 1 to 3 carbon atoms, and n is an integer of from 3 to 10.
REFERENCES:
patent: 3186963 (1965-06-01), Lewis et al.
patent: 3801572 (1974-04-01), Berger
patent: 3888815 (1975-06-01), Bessmer et al.
patent: 4467063 (1984-08-01), Lockhart
patent: 4499234 (1985-02-01), Pratt et al.
patent: 4555420 (1985-11-01), Lucas
Marquis Melvyn I.
Rhone-Poulenc Specialites Chimiques
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