Gelatin-modified polyurethane

Details Gelatin-modified polyurethane Gelatin-modified polyurethane

1998-06-04

1999-09-07

Sergent, Rabon

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

524 22, 524704, 524839, 524840, 525453, 527200, 527204, 527207, 528 71, C08L 7504, C08L 8900, C08H 100

Patent

active

059488573

ABSTRACT:
The present invention is a water-dispersible polyurethane composed of a polyurethane containing carboxylate groups covalently bonded to gelatin through a grafting agent. The polyurethane is formed by providing a polyurethane dispersion containing carboxylate groups wherein the polyurethane dispersion has an acid number of at least 5. The polyurethane dispersion is contacted with a grafting agent. The polyurethane dispersion with the grafting agent is contacted with gelatin to form a polyurethane covalently bonded to gelatin wherein a ratio of gelatin to polyurethane is from 1:10 to 2:1.

REFERENCES:
patent: 3240604 (1966-03-01), Cook
patent: 4266015 (1981-05-01), Butler et al.
patent: 4824640 (1989-04-01), Hildenbrand et al.
patent: 4855219 (1989-08-01), Bagchi et al.
patent: 5066572 (1991-11-01), O'Connor et al.
patent: 5173739 (1992-12-01), Kurachi et al.
patent: 5248558 (1993-09-01), Bagchi et al.
patent: 5330855 (1994-07-01), Semancik et al.
patent: 5786134 (1998-07-01), Nair et al.
Research Disclosure No. 38957, Sep. 1996, p. 601.

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