Self-emulsifying epoxy curing agent based on the reaction produc

Details Self-emulsifying epoxy curing agent based on the reaction produc Self-emulsifying epoxy curing agent based on the reaction produc

1994-12-13

1996-06-18

Marquis, Melvyn I.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

525504, 525507, 525523, 528110, 528121, C08K 320, C08L 6302, C08L 6304

Patent

active

055278396

ABSTRACT:
A new epoxy hardener composition is the product of the reaction of (A) a poly(alkylene oxide) monoalcohol with a molecular weight (Mn) of about 500 to 3000 and (B) a polyepoxide, in a molar ratio of polyepoxide to poly(alkylene oxide) monoalcohol of about 1.3:1 to 6:1 to yield an intermediate (C), which in a second step is reacted with (D) a polyamine. The compositions of the invention are excellent emulsifiers of liquid epoxy resins in aqueous media without the addition of added surfactants or acidic compounds, and can be used to prepare water resistant water-borne coatings and related products from both liquid and solid epoxy resins, that possess long pot lives and contain relatively small amounts of volatile organic compounds.

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