Chemistry: natural resins or derivatives; peptides or proteins; – Proteins – i.e. – more than 100 amino acid residues
Patent
1991-03-29
1993-09-21
Russel, Jeffrey E.
Chemistry: natural resins or derivatives; peptides or proteins;
Proteins, i.e., more than 100 amino acid residues
502402, 502403, 525432, 528321, 528328, 530300, 604372, A61F 1315, C07K 1500, C08G 6910, C08L 7704
Patent
active
052470687
ABSTRACT:
Substantially water-insoluble, crosslinked polypeptides containing 15 to 85 mole % of amino acid residues such as glutamic acid, aspartic acid, phosphoserine, phosphohomoserine, phosphotyrosine, phosphothreonine, phosphoasparagine, or phosphoglutamine, and 15 to 85 mole % of amino acid residues such as lysine, arginine, asparagine, glutamine, serine or tyrosine, in which the degree of crosslinking is sufficient to result in a substantially water-insoluble polypeptide with the ability to absorb a 1% aqueous NaCl solution in an amount of at least 20 times the weight of the polypeptide, are useful as superabsorbents in devices such as diapers, etc.
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Donachy Julie
Sikes Steven
Russel Jeffrey E.
University of South Alabama
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