Patent ID: 8604149
Filing Date: 2013-12-10
Classification: C04B,C08G,C08L,D01F

Abstract:
1. Method for preparing a polysilane-polycarbosilane copolymer solution, especially for preparing fibers or for building up ceramic matrices, comprising (1) the provision of a polysilane, obtained by the disproportionation of a methylchlorodisilane or of a mixture of a plurality of methylchlorodisilanes of a composition of Si (2) a subsequent thermal crosslinking of the polysilane according to (1) into an infusible polysilane-polycarbosilane copolymer soluble in inert solvents, and (3) the preparation of the solution by dissolving the polysilane-polycarbosilane copolymer in an inert solvent, wherein the polysilane is or was obtained by adding a crosslinking aid, selected from the group consisting of arylhalosilanes, arylhaloboranes and mixtures of these compounds.