초록

Stable, substantially acid-free, one package moisture curable alkoxy-terminated organopolysiloxane compositions are provided having a condensation catalyst such as a tin compound and a silicon-free scavenger, such as an organic scavenger, for materials having chemically combined hydroxy radicals.

대표청구항 ▼

A one-package, substantially anhydrous, room temperature vulcanizable organopolysiloxane composition stable under ambient conditions in the substantial absence of moisture over an extended period of time and convertible to a substantially acid-free, tack-free elastomer comprising by weight, (A) an o

A one-package, substantially anhydrous, room temperature vulcanizable organopolysiloxane composition stable under ambient conditions in the substantial absence of moisture over an extended period of time and convertible to a substantially acid-free, tack-free elastomer comprising by weight, (A) an organopolysiloxane wherein the silicon atom at each polymer chain end is terminated with at least one alkoxy radical, (B) an effective amount of condensation catalyst (C) from 0 to 0.1 part, per part of the alkoxy terminated organopolysiloxane of (A) of a cross-linking polyalkoxysilane of formula (3) (D) 0 to 0.05 part, per part of the alkoxy terminated organopolysiloxane of an amine accelerator and (E) a stabilizing amount of an organic material having at least one alcohol reactive functional group which is suitable as a scavenger for hydroxy-containing material having a molecular weight of from about 40 to about 1,000 and consisting essentially of a mixture of chemically combined atoms selected from C, H, N, O, P, S, Cl, F, Br and I.