Copolymer of (meth)acryloxy-alkyl-siloxysilane and alkyl(meth)acrylates and the use thereof as pressure sensitive adhesives
 A new polymer, the feed monomers and molar percents of which, exclusive of a polymerization initiator and crosslinker, are: PA0 A. (I) 42 mole % to 58 mole % of a siloxy silane of formula I, PA1 (II) 42 mole % to 58 mole % of an unsubstituted alkyl (meth)acrylate of formula II, PA1 (III) 0 to 5 mole % of a Group A monomer, and PA1 (IV) 0 to 16 mole % of an additional vinylic copolymerizable monomer; PA0 B. (I) 42 mole % to 58 mole % of a siloxy silane of formula I, PA1 (II) 21 mole % up to less than 42 mole % of an unsubstituted alkyl (meth)acrylate of formula II, PA1 (III) 0 to 5 mole % of a Group A monomer, and PA1 (IV) 0 to 29 mole % of an additional vinylic copolymerizable monomer; or PA0 C. (I) 16 mole % up to less than 42 mole % of a siloxy silane of formula I, PA1 (II) 42 mole % to 58 mole % of an unsubstituted alkyl (meth)acrylate of formula II, PA1 (III) 0 to 5 mole % of a Group A monomer, and PA1 (IV) 0 to 36 mole % of an additional vinylic copolymerizable monomer; PA0 where formula I is ##STR1## where formula II is ##STR2## in which R.sub.3 is hydrogen or methyl; and R.sub.4 is methyl or a linear or branched chain C.sub.2-10 alkyl which is unsubstituted; PA0 where Group A is (meth)acrylic acid, maleic acid, fumaric acid, itaconic acid, itaconic acid, cinnamic acid, crotonic acid, fumaric acid, maleic acid, 2-(methy)acroyloxyethyl sulfonic acid, 2-(meth)acrylamido-2-methylpropane sulfonic acid, vinyl sulfonic acid, p-styrene sulfonioc acid, allyl sulfonic acid or of formula III. 
Ciba-Geigy Corp.
Y C
Y10S C08F
additional inventional
Bret Xiaoling
Berner Li