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
1996-08-02
1998-03-24
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.
502403, 530427, B01J 2026, C07K 114, C07K 1478
Patent
active
057314187
ABSTRACT:
A modified collagen product adapted for use as a sorbent is provided which includes collagen polymer having a density of from about 0.2-1.3 g/ml, an intrafibril pore size of from about 25-150 microns, and up to about 80% of the helicity of otherwise identical, unmodified naturally occurring polymer. The product is advantageously formed using leather scraps derived from tanning operations. The method for producing the collagen product of the invention includes first providing wet, detanned, leather-derived collagen and flash drying this material to remove substantial moisture therefrom while preventing the temperature of the detanned material from rising above about 130.degree. F. This process permits substantial drying without undesired chemical modification of the collagen.
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