Azo di-ester polyols for graft copolymerization

Details Azo di-ester polyols for graft copolymerization Azo di-ester polyols for graft copolymerization

1977-03-22

1978-06-13

Higel, Floyd D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260 25A, 260 25AB, 260 25AC, 260 25AE, 260 25AQ, 260 775AN, 260 775AT, 260 775CH, 260526R, 260534E, 260404, 2604654, 260858, 260859R, 260891, 260898, C07C10702, C08G 6300, C08J 900

Patent

active

040948684

ABSTRACT:
Compounds containing an azo-linkage connecting two similar polyol esters constituents are described. These azo di-ester polyols are prepared by the direct esterification of azo diacids with polyols, in the presence of a strong mineral acid catalyst. The azo di-ester polyol products function as free radical initiators and grafting bases in the graft copolymerization of unsaturated monomers with polyols. These graft copolymers are useful in the formulation of polyurethanes.

REFERENCES:
patent: 3268506 (1966-08-01), de Vries
patent: 3285949 (1966-11-01), Siebert
patent: 3306888 (1967-02-01), Mortimer
patent: 3752802 (1973-03-01), Sheppard et al.
patent: 3812095 (1974-05-01), Sheppard et al.
patent: 3890294 (1975-06-01), Sheppard et al.
patent: 3949015 (1976-04-01), Laverty et al.

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