Acrylic silicate compositions and methods and highly...

C - Chemistry – Metallurgy – 07 – F

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C07F 7/18 (2006.01) B29D 11/00 (2006.01) C07F 7/02 (2006.01) C08F 30/08 (2006.01) C08F 130/08 (2006.01) G02B 1/04 (2006.01)

Patent

CA 1303053

ABSTRACT A new composition of matter is an acrylic silicate of the type having the general formula: Image where in R = alkyl, aryl or H, R' = R or OR, Y = alkyl, vinyl, aryl, or fluoroalkyl, Z = Image or B A = Y, Z or H, and B = oxyalkyl, oxyaryl, oxyfluoroalkyl, oxyalkyl- acrylate, alkyl esters, aryl esters, fluoro- alkyl esters, or acrylic esters. These compositions are useful in the manufacture of corneal contact lenses.

513347

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