Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1993-06-15
1995-02-21
Michl, Paul R.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
523106, 526242, 526279, 526323, 351160H, C08F22218, C08F21208, C08F23008, C08F22056
Patent
active
053915917
ABSTRACT:
An ocular lens material comprising a copolymer prepared by polymerizing a monomer mixture comprising, as main components, (A) 15 to 40% by mole of a fluoroalkyl (silicon-containing alkyl) fumarate, (B) 10 to 50% by mole of a styrenic monomer, (C) 5 to 35% by mole of a hydrophilic monomer, and (D) 0.1 to 20% by mole of a crosslinkable monomer. The ocular lens material is excellent in all of transparency, oxygen permeability, mechanical strength and hardness. Further, the material is excellent in hydrophilic property in spite of its low water absorption.
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Ando Ichiro
Kawaguchi Toru
Toyoshima Nobuyuki
Yamamoto Yasushi
Yamazaki Toshio
Menicon Co. Ltd.
Merriam Andrew E. C.
Michl Paul R.
Shin-Etsu Chemical Co. , Ltd.
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