ADHESIVE REPELLENT COATINGS AND SUBSTRATES COATED THEREWITH

摘要

Coating compositions are provided for the manufacture of a non-stick coating. The compositions comprise (1) vinyl siloxy-terminated diorganopolysiloxanes having a plasticity within the range of from 300 to 800 mkp, (meter kilo pond), as determined in a Brabender Plastograph at 25.degree.C and at 60 revolutions per minute in which from 3 to 30 mole percent of the nonterminal siloxane units are diphenylsiloxane units and at least 50 mole percent of the remaining organic radicals on the siloxane units are methyl radicals,(2) organohydrogenopolysiloxanes having at least 3 Si-bonded hydrogen atoms per molecule, (3) catalysts which promote the addition of Si-bonded hydrogen atoms to the vinyl groups and (4) an inert organic solvent. These coating compositions may be applied to cellulosic materials and other substances to impart varying degrees of adhesive repellency thereto.