Melt processable polyurethaneurea copolymers and method for thei

Details Melt processable polyurethaneurea copolymers and method for thei Melt processable polyurethaneurea copolymers and method for thei

1990-06-29

1993-10-05

Kight, III, John

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

Synthetic resins

From reactant having at least one -n=c=x group as well as...

528 28, 528 54, 528 76, 528 77, 528 83, 528 84, C08G 1800

Patent

active

052506495

ABSTRACT:
Melt processable polyurethaneureas are prepared from a diisocyanate, a polyglycol, a diol chain extender and an amine terminated polyether. Water may be included as a reactant, and the polymer may contain an additive such as a radiopaque material and a coating of an antithrombogenic agent or an antimicrobial agent. The invention includes a one-pot bulk polymerization method for preparation of the polymers.

REFERENCES:
patent: 4719247 (1988-01-01), Un et al.
patent: 4948860 (1990-08-01), Solomon et al.
Phillips et al., The Use of Segmented Polyurethane in Ventricular Assist Devices and Artificial Hearts, Synthetic Biomedical Polymers, M. Szycher and W. J. Robinson ed. Technomic Publishing Co., Inc. Westport, Ct. 1980, p. 39.

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