Graft copolymers from unsaturated monomers and azo di-ester poly

Details Graft copolymers from unsaturated monomers and azo di-ester poly Graft copolymers from unsaturated monomers and azo di-ester poly

1981-08-05

1982-11-16

Lieberman, Allan

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521163, 521164, 521167, 525404, 525445, 525 63, 528 75, 528 80, C08G 1814, C08G 1816, C08G 1863, C08L 7506

Patent

active

043595421

ABSTRACT:
Graft copolymers are prepared by the polymerization of an ethylenically unsaturated monomer, or a mixture of such monomers, in the presence of an azo di-ester polyol. Presence of the azo group in the polyol reactant itself serves as a free radical initiator site for the graft copolymerization reaction. The copolymers formed are utilized in the formulation of polyurethane compositions.

REFERENCES:
patent: 3383351 (1968-05-01), Stamberger
patent: 3649614 (1972-03-01), Sheppard et al.
patent: 3752802 (1973-08-01), Sheppard et al.
patent: 3823201 (1974-07-01), Pizzini et al.
patent: 4181781 (1980-01-01), Chandalia et al.

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