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

1989-05-01

1990-08-14

Welsh, Maurice J.

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

Synthetic resins

From silicon reactant having at least one...

528 76, 528 83, 528 84, C08G 1832

Patent

active

049488600

ABSTRACT:
Melt processable polyurethaneureas are prepared from a diisocyanate, a macroglycol, a diol chain extender and a diamine chain extender. Water may be included as a reactant, and the polymer may contain an additive such as a radiopaque material. The invention includes a one-pot bulk polymerization method for preparation of the polymers.

REFERENCES:
patent: 3642064 (1972-02-01), Rausch et al.

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