Pressure sensitive adhesive release liner and fluorosilicone com

Details Pressure sensitive adhesive release liner and fluorosilicone com Pressure sensitive adhesive release liner and fluorosilicone com

1986-06-04

1988-04-05

Shaver, Paul F.

Organic compounds -- part of the class 532-570 series

Organic compounds

Silicon containing

556453, 556456, 528 12, 528 14, 528 23, 528 32, 528 33, 528 37, 10628714, C07F 708

Patent

active

047360488

ABSTRACT:
Pressure sensitive adhesives can be protected with a releasable liner having a cured fluoroalkyl silicone coating which contains as little as two percent fluoroalkyl-substituted siloxane units. In a preferred embodiment of this invention silicone pressure sensitive adhesives can be solvent-cast, and even cured, directly onto the release surface of the liner and can be removed from the protective liner with a force of no more than 400 grams per inch. The fluoroalkyl silicone copolymers of this invention are prepared by a process which involves the preparation of a cohydrolyzate of fluoroalkyl-containing and fluoroalkyl-free siloxane units, followed by further polymerization of the cohydrolyzate with other siloxane units.

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