C - Chemistry – Metallurgy – 07 – F
Patent
C - Chemistry, Metallurgy
07
F
402/15, 260/445.
C07F 7/08 (2006.01) C07F 7/18 (2006.01) C08G 77/38 (2006.01) C08G 77/50 (2006.01) C08L 83/14 (2006.01)
Patent
CA 1331011
POLYALKOXYSILYLALKYLENEDISILAZANES AND SILYLAMINES Abstract A polyalkoxysilylalkylenedisilazane of the formula Image and a polyalkoxysilylalkylenesilylamine of the formula Image where x is 0 or 1; R is a saturated alkyl or aryl radical or a mixture of said radicals; R' is an alkyl, aryl, or 2-ethoxyethanol radical, or a mixture of said radicals; R'' is hydrogen, alkyl aryl, or a mixture of said radicals; and A is a divalent hydrocarbon radical having 2 to 20 carbon atoms; and a method for their manufacture by the platinum catalyzed addition of an alkenyl-functional disilazane or silylamine with an alkoxy-functional silicon hydride is disclosed. The silylamine can also be produced by the platinum catalyzed addition of a SiH functional silazane or silylamine and an alkenyltrialkoxysilane. The polyalkoxysilylalkylenedi- silazane and the polyalkoxysilylalkylenesilylamine can be reacted with a silanol containing polyorganosiloxane such as a hydroxyl endblocked polydiorganosiloxane in the presence of an acidic catalyst to give a polyalkoxysilyl terminated polydiorganosiloxane in which the terminal groups are bonded to the polymer through an alkylene linkage.
574305
Krahnke Robert Harold
Saam John Carlton
Dow Corning Corporation
Gowling Lafleur Henderson Llp
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