Epoxy-modified polyols and polymer-polyols useful in the prepara

Details Epoxy-modified polyols and polymer-polyols useful in the prepara Epoxy-modified polyols and polymer-polyols useful in the prepara

1986-01-21

1987-03-03

Welsh, Maurice J.

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

Synthetic resins

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

525185, 528 73, 528 75, 528 76, 528 77, C08L 7504

Patent

active

046476245

ABSTRACT:
Polyurethane which is reaction product of mixture comprising polyisocyanate and polymer-polyol comprising reaction product of polyol of average molecular weight of at least 500 and that is essentially free of ethylenic unsaturation, epoxy co-reactant essentially free of ethylenic unsaturation, and at least one ethylenically unsaturated monomer reactive with free hydroxyl groups of the polyol and which has been polymerized in the presence of said polyol and epoxy or of an adduct of the polyol and epoxy by free radical addition polymerization to a substantially linear polymer having a molecular weight of at least 5000.

REFERENCES:
patent: Re28715 (1976-02-01), Stamberger
patent: Re29014 (1976-10-01), Pizzini et al.
patent: Re29118 (1977-01-01), Stamberger
patent: 3652639 (1972-03-01), Pizzini et al.
patent: 3823201 (1974-07-01), Pizzini et al.
patent: 3931450 (1976-01-01), Patton, Jr. et al.
patent: 3950317 (1976-04-01), Patton, Jr. et al.
patent: 3953393 (1976-04-01), Ramlow et al.
patent: 4014846 (1977-03-01), Ramlow et al.
patent: 4093573 (1978-06-01), Ramlow et al.
patent: 4495341 (1985-01-01), Stamberger
patent: 4585831 (1986-04-01), Stamberger

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