C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
402/510, 402/9,
C07C 69/753 (2006.01) C07F 7/18 (2006.01) C08F 20/68 (2006.01) G02B 1/04 (2006.01)
Patent
CA 1248126
-1- Abstract of the Disclosure Polymerizable monomer compounds selected from the group having the formulae: Image or Image I II wherein R is hydrogen or methyl; X is fluoro, chloro, bromo, iodo, hydroxyl, perfluoroalkylsulfonoxy of one to three carbon atoms, perfluoroacyloxy of one to three carbon atoms, benzoyloxy, or trichloroacetoxy; Y is trichloroacetyl, perfluoroacyl of the formula Image trialkylsilyl of the formula [CH3(CH2)m]3Si- or hydrogen, wherein n is zero to six; and m is zero to three, with the proviso that when Y in Formula I or II is hydrogen, X is selected from fluoro, chloro, bromo, iodo in Formulas I and II, and additionally from hydroxyl in Formula I, are disclosed. Polymers and copolymers of the invention are useful for preparing hydrogel processed articles such as contact lenses, and when dissolved in solvents they can be coated onto articles and then hydrolyzed to provide hydroyel coatings.
454651
Minnesota Mining And Manufacturing Company
Smart & Biggar
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