Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Patent
1985-03-18
1987-10-13
Kight, John
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
524515, 525 10, 525 47, 525419, 528323, C08L 6706
Patent
active
046999469
ABSTRACT:
An optically transparent hydrogel 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: 4205139 (1980-05-01), Barzynski et al.
Kato Takuo
Yanagihara Yasukichi
Kight John
Moore M. L.
Tomei Sangyo Kabushiki Kaisha
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