C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 75/14 (2006.01) C08F 290/08 (2006.01) C08L 57/00 (2006.01) G02B 1/04 (2006.01) G02C 7/04 (2006.01)
Patent
CA 2076492
V-18764/A/CGV 1569 CROSSLINKED HYDROGELS DERIVED FROM HYDROPHILIC POLYMER BACKBONES Abstract of the Disclosure The crosslinked polymerization product of the reaction product of a polymeric backbone containing pendant hydroxyl groups with an unsaturated monoisocyanate or of saidreaction product with an ethylenically unsaturated monomer gives a hydrogel material suitable for making contact lenses.
Goldenberg Merrill S.
Rennwantz Ellen
Ag Ciba-Geigy
Fetherstonhaugh & Co.
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