Patent ID: 9040009
Filing Date: 2015-05-26
Classification: C01B,C01G,C08G,Y02P

Abstract:
1. Kinetically stable halogenated polysilanes comprising a mixture of compounds having more than three silicon atoms in the backbone with in each case at least four interconnected Si atoms whose substituents comprise chlorine or chlorine and hydrogen and in whose composition an atomic ratio of substituent to silicon is at least 1:1, where a) the polysilanes have a kinetically high stability toward oxidative cleavage by chlorine, with there being no reaction of the polysilanes to an extent of more than 30 mol %, at a temperature of 120° C. over 10 hours under excess chlorine gas at 1013 hPa, and b) the polysilanes have a fraction of branching sites in polysilane molecules of more than 8 mol %.