Method for preparing a finely divided, free flowing organosiloxane elastomer base exhibiting reduced compression set following curing

摘要

The compression set values of cured elastomers prepared from finely divided organosiloxane elastomer bases are reduced by treating the base with a silane or disilazane wherein the silicon atoms are bonded to one hydrolyzable group and three hydrocarbon radicals that are free of ethylenic unsaturation. The base is maintained in a fluidized state during this treatment.