Polyurethane based on hydroxyl-containing polymer polyol and pro

Details Polyurethane based on hydroxyl-containing polymer polyol and pro Polyurethane based on hydroxyl-containing polymer polyol and pro

1985-12-18

1988-01-05

Welsh, Maurice J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521173, 521176, 5253272, 5253288, 5253292, 5253295, 5253305, 525460, 526209, 526210, 526211, 526213, 528 75, 528 76, C08G 1814

Patent

active

047177381

ABSTRACT:
Polyurethane resins having high rigidity and improved physical properties, such as mechanical strengths and heat resistance are obtained by reacting a polyisocyanate with a polyol component comprising a pendant hydroxyl-containing polymer polyol, of high polymer content, derived from a polyol and a mixture comprising a hydroxyl-containing monomer and an unsaturated nitrile, or a combination of said polymer polyol with an epoxy-containing polymer polyol.

REFERENCES:
patent: 3383351 (1968-05-01), Stamberger
patent: 4542165 (1985-09-01), Kumata et al.
Kuryla et al., Journal of Cellular Plastics, Mar., 1966, pp. 84-96, "Polymer/Polyols, a New Class of Polyurethane Intermediates".

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