Aqueous polyepoxide emulsions

Details Aqueous polyepoxide emulsions Aqueous polyepoxide emulsions

1984-01-23

1984-12-18

Griffin, Ronald W.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

523404, C08L 6310, C08L 6302

Patent

active

044891792

ABSTRACT:
A room temperature-curing emulsion coating composition is disclosed in which a solution of normally solid polyepoxide polymer having a 1,2-epoxy equivalency of at least 1.4 and a molecular weight up to about 2000 in inert volatile organic solvent is emulsified into water having dissolved therein a monosecondary amine containing at least one primary amine group which is ketimine blocked by reaction with a ketone which is hindered to prevent reaction with a secondary amino hydrogen atom, this hindered ketone being selected from the group consisting of noncyclic ketones containing one group selected from methyl or ethyl and a second group containing at least four carbon atoms, and cyclic ketones which are substituted in the alpha position. The monosecondary amine is dispersed in the water of the emulsion by at least 50% neutralization of amine functionality with a volatile solubilizing acid either as such or after reaction into a polymer by means of its secondary amino hydrogen atom.

REFERENCES:
patent: 4289595 (1981-09-01), Tortorello
patent: 4371669 (1983-02-01), Mylonakis et al.
patent: 4427804 (1984-01-01), Tortorello et al.
Chemical Abstracts, vol. 95, No. 16, Oct. 19, 1981, p. 84, Abstract 95:134473b.

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