Hydrophilic resin containing oxazolidone rings and coating compo

Details Hydrophilic resin containing oxazolidone rings and coating compo Hydrophilic resin containing oxazolidone rings and coating compo

1992-12-04

1994-01-04

Marquis, Melvyn I.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

528 96, C08K 320, C08L 6302

Patent

active

052760723

ABSTRACT:
Oxazolidone ring-containing epoxy resins (a) produced by the reaction between a diglycidyl ether or ester and an organic diisocyanate are reacted with (b) a first active hydrogen compound such as mono- or diols, mono- or dicarboxylic acids in less than a stoichiometric amount in terms of the active hydrogen atom relative to the epoxy group, and then with (c) a second active hydrogen compound such as amines or sulfide-acid mixtures or polycarboxylic acids in a stoichiometric amount relative to the remaining epoxy group. The resulting hydrophilic modified resin has an oxazolidone ring-containing backbone terminated with an ionizable group. A water-borne paints are formulated from the hydrophilic modified resin by dispersing in an aqueous medium containing a crosslinker and a neutralizing agent.

REFERENCES:
patent: 3415901 (1968-12-01), Schramm et al.
Kordomenos et al., J. of Coatings Tech. vol. 55, p. 51 (1983).

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