/ SILYLATED POLYURETHANE/POLYORGANOSILOXANE BLEND AND SEALANT COMPOSITION AND FUMED SILICA COMPOSITION CONTAING SAME

摘要

(A) a silanol and / or hydrocarbon-terminated polyorganosiloxane in an amount from about 30 weight percent to about 90 weight percent; And (B) a moisture-curable silylated polyurethane resin in an amount from about 10 weight percent to about 70 weight percent. (A) silanol and / or hydrocarbon-terminated polyorganosiloxane in an amount from about 15 weight percent to about 60 weight percent, (B) from about 2 weight percent to about 32 weight percent of a moisture curable silylated polyurethane resin, and (C) a filler, wherein said weight percentages are based on the weight of the first part. The present invention also relates to a composition comprising (A) a silanol and / or hydrocarbon-terminated polyorganosiloxane in an amount from about 20 weight percent to about 62 weight percent; (B) a moisture-curable silylated polyurethane resin in an amount from about 8 weight percent to about 38 weight percent; And (C) a treated fumed silica in an amount of about 5 to about 10 weight percent.