US Patent No: 4,277,582

Number of patents in Portfolio can not be more than 2000

Water-insoluble hydrophilic copolymers

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Abstract

A water-insoluble hydrophilic gel comprising: (A) about 30 to about 90% of a hydrophilic (a) polymer of identical or different watersoluble mono-olefinic monomers, or (b) copolymer of said watersoluble monomers with 1 to 70% of water-insoluble, identical or different mono-olefinic monomers, which polymer or copolymer is cross-linked with (B) about 10 to about 70% of a terminal diolefinic hydrophobic macromer having a molecular weight from about 400 to about 8000.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
CIBA SPECIALTY CHEMICALS CORPORATIONTARRYTOWN, NY3419

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Good, William R Salt Lake City, UT 8 276
Mueller, Karl F New York, NY 49 1509

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Patent Citation Ranking

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