Contact lens formed from a hydrogel fundamental material

Details Contact lens formed from a hydrogel fundamental material Contact lens formed from a hydrogel fundamental material

1987-03-18

1988-11-29

Foelak, Morton

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

351160R, 351160H, 524539, 524515, 525 10, 525 47, 525419, 528323, C08J 300

Patent

active

047882271

ABSTRACT:
An optically transparent hydrogen forming material comprising a copolymer of an optically transparent polyester having a molecular weight of 1,000 to 100,000 and at least one of polymerizable group in its molecule and N-vinyllactam. The hydrogel forming material has an excellent optical property, high gas-permeability and excellent mechanical property.

REFERENCES:
patent: 4002700 (1977-01-01), Fukuzaki et al.
patent: 4450262 (1984-05-01), Drake et al.

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