Chemistry: natural resins or derivatives; peptides or proteins; – Proteins – i.e. – more than 100 amino acid residues – Scleroproteins – e.g. – fibroin – elastin – silk – etc.
Patent
1990-11-14
1993-02-16
Russel, Jeffrey E.
Chemistry: natural resins or derivatives; peptides or proteins;
Proteins, i.e., more than 100 amino acid residues
Scleroproteins, e.g., fibroin, elastin, silk, etc.
106125, 430539, 430640, 430642, 530355, 530408, C07K 1506, C07K 1520, C09D18900, G03C 1047
Patent
active
051872595
ABSTRACT:
A soluble, chain extended gelatin having a high molecular weight and significantly higher viscosity at equivalent gelatin concentration compared to standard gelatin and significantly faster setting time is produced by preparing an aqueous gelatin composition containing from about 6% to about 18% dry weight of gelatin and from about 0.25 to about 5 millimoles of a bis-(vinyl sulfonyl) compound per 100 grams of gelatin, heating the composition at a temperature of from about 40 to about 60.degree.C. and at a pH of from about 4.5 to about 7 for from about one to about eight hours.
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Bello James L.
Sterman Melvin D.
Eastman Kodak Company
Gerlach Robert A.
Russel Jeffrey E.
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