Amide-containing self-emulsifying epoxy curing agent

Details Amide-containing self-emulsifying epoxy curing agent Amide-containing self-emulsifying epoxy curing agent

1995-10-03

1997-01-21

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 93, 528121, C08K 320, C08L 6302

Patent

active

055960308

ABSTRACT:
A new epoxy hardener composition is the product of the reaction of (A) a poly(alkylene oxide) monoamine or diamine with a molecular weight (Mn) of about 500 to 3000 and (B) a di- or polycarboxylic acid, in a ratio of moles of carboxylic acid to equivalents of amine of about 1:1 to 6:1 to yield an intermediate (C), which in a second step is reacted with (D) a di- or 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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