Polyalkoxysilylalkylenedisilazanes and silylamines

Abstract

Abstract A polyalkoxysilylalkylenedisilazane of the formula ##STR1## and a polyalkoxysilylalkylenesilylamine of the formula ##STR2## where x is 0 or 1; R is a saturated alkyl or aryl radical or mixture of radicals; R' is alkyl, aryl, or cellosolve (R) 2-alkylethanol radical, or mixture of radicals; R" is hydrogen, alkyl, aryl, or arylalkyl radical or mixture of 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 of silylamine and an alkenyltrialkoxysilane. The polyalkoxysilylalkylenedisilazane 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.

Inventors

• 👤 Robert H. Krahnke
• 👤 John C. Saam

Bibliographic Details