Process for the production of a single-component powder resin fo

Details Process for the production of a single-component powder resin fo Process for the production of a single-component powder resin fo

1974-10-02

1976-05-04

Kight, III, John

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 775TB, 427 27, 526 14, 526 50, 526 55, 526272, C08F 830

Patent

active

039547191

ABSTRACT:
This invention describes a process for the production of a single-component resin powder useful in electrostatic spray coating processes by the formation of partially esterified and alkoxylated copolymers obtained through the reaction of vinyl-aromatic hydrocarbons with alpha, beta-unsaturated dicarboxylic acid anhydrides which are subsequently half-esterified and thereafter the resultant carboxyl group of which is alkoxylated with C.sub.2 to C.sub.4 alkene oxides. Said copolymer is reacted with a monoblocked diisocyanate between 110.degree. and 130.degree.C in the melt form until said single-component resin powder is formed.

REFERENCES:
patent: 3646044 (1972-02-01), Sekmakas
patent: 3741943 (1973-06-01), Sekmakas
patent: 3752793 (1973-08-01), Arlt et al.
patent: 3784528 (1974-01-01), Pirck et al.
patent: 3867347 (1975-02-01), Felber et al.

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