C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
400/4106, 400/53
C08L 83/04 (2006.01) C08K 5/54 (2006.01) C08K 5/549 (2006.01) C09J 183/04 (2006.01)
Patent
CA 1328321
COMPOSITIONS WHICH CROSSLINK IN THE PRESENCE OF MOISTURE AT ROOM TEMPERATURE TO FORM ELASTOMERS Abstract of the Disclosure Compositions which can be stored in the absence of moisture, but crosslink in the presence of moisture at room temperature to form elastomers comprising a diorganopolysiloxane having terminal condensable groups, a silicon compound having at least three hydrolyzable groups bonded directly to silicon per molecule, an average of at least one acyloxy group being present as a hydrolyzable group per silicon atom in the silicon compound, and an organosilicon compound having at least one vicinal epoxy group, in which at least part of the organosilicon compound containing at least one vicinal epoxy group is a cyclic diorganopolysiloxane. These compositions are prepared by mixing under anhydrous conditions a diorgano- polysiloxane having terminal condensable groups with a silicon compound having at least three hydrolyzable groups bonded directly to silicon per molecule, an average of at least one acyloxy group being present as a hydrolyzable group per silicon atom in the silicon compound and an organosilicon compound having at least one vicinal epoxy group, in which at least part of the organosilicon compound containing at least one vicinal epoxy group is a cyclic diorganopolysiloxane.
579766
Dorsch Norman
Schiller August
Sommer Oswin
Strasser Alois
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Wacker-Chemie G.m.b.h.
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