PROCESS FOR PREPARING HIGH MOLECULAR WEIGHT POLYSILOXANES BY POLYMERIZATION AND REARRANGEMENT OF POLYSILOXANES IN THE PRESENCE OF AN ALCALINE CATALYST AND A TRIS(OXYALKYL) AMINE

摘要

High molecular weight organopolysiloxanes, e.g., polydimethylpolysiloxane oils and gums, are facilely and rapidly prepared by polymerizing/rearranging a lower molecular weight organopolysiloxane in the presence of a catalytically effective amount of an alkaline catalyst and a tris-(oxaalkyl)-amine accelerator having the formula (I): N-CHR1-CHR2-O-CHR3-CHR4-O)nR5]3 (I).