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

1977-03-22

1981-03-24

Pertilla, Theodore E.

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

Synthetic resins

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

260 332R, 260 334R, 521137, 525 58, 525167, 525440, 526219, 526320, C08L 6706, C08K 506

Patent

active

042581486

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: 3291859 (1966-12-01), Tobolsky et al.
patent: 3641209 (1972-02-01), Ott et al.
patent: 3642751 (1972-02-01), Logemann et al.
patent: 3649614 (1972-03-01), Sheppard et al.
patent: 3752802 (1973-08-01), Sheppard et al.
patent: 4028344 (1977-06-01), Lange et al.
patent: 4063012 (1977-12-01), MacLeay et al.

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