Hydrogel fundamental material
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Oct 13, 1987
Grant Date -
N/A
app pub date -
Mar 18, 1985
filing date -
Mar 24, 1984
priority date (Note) -
Expired
status (Latency Note)
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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.
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