Aqueous coating composition based on low-solvent modified epoxy

Details Aqueous coating composition based on low-solvent modified epoxy Aqueous coating composition based on low-solvent modified epoxy

1996-09-25

1998-01-13

Marquis, Melvyn I.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

523427, 428413, C08K 320

Patent

active

057080585

ABSTRACT:
Aqueous low-solvent coating compositions comprising a modified epoxy resin dispersion comprising an epoxy resin which is prepared by condensation of one or more epoxide compounds having at least two epoxide groups per molecule with an aromatic polyol; a dispersant comprising a condensation product of an aliphatic polyol and an epoxide compound having at least two epoxide groups per molecule; a diluent consisting of ethylenically unsaturated otherwise inert or, if desired, functional monomers capable of free-radical polymerization or copolymerization, and water, and also an aqueous curing agent for the modified epoxy resin (I), which is suitable for curing at room temperature or at elevated temperatures (forced drying), components (I) and (II) being employed in proportions by mass such that the ratio of the number of epoxide groups which are capable of reaction to the number of amine hydrogen atoms is between 1:0.75 and 1:2. The coating compositions can be employed to produce matt coatings and in adhesives.

REFERENCES:
patent: 3870666 (1975-03-01), Becker
patent: 4197389 (1980-04-01), Becker et al.
patent: 4423201 (1983-12-01), Hicks
patent: 4446256 (1984-05-01), Hicks
patent: 4886845 (1989-12-01), Becker et al.
patent: 5236974 (1993-08-01), Dreischhoff et al.
patent: 5274012 (1993-12-01), Neffgen et al.

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