Scavengers for ammonia in rtv compositions

Details Scavengers for ammonia in rtv compositions Scavengers for ammonia in rtv compositions

C - Chemistry, Metallurgy

08

L

400/5315, 400/72

C08L 83/06 (2006.01) C08K 3/02 (2006.01) C08K 13/02 (2006.01)

Patent

CA 1250985

SCAVENGERS FOR AMMONIA IN RTV COMPOSITIONS ABSTRACT OF THE DISCLOSURE A stable, one-package, silicone RTV composition convertible to a tack-free elastomer comprising: (1) a polydiorganosiloxane base polymer, (2) an effective amount of condensation catalyst, (3) a stabilizing amount of a silicon-nitrogen compound for scavenging hydroxy radicals which releases ammonia as a by-product of the scavenging reaction, and (4) an effective amount of scavenger for said ammonia by-product selected from the group consisting of molecular sieves, acids and mixtures thereof.

463223

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