Reactive diluents for polyamidoamine epoxy curatives

Details Reactive diluents for polyamidoamine epoxy curatives Reactive diluents for polyamidoamine epoxy curatives

1998-01-06

2000-04-04

Dawson, Robert

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

528117, 528120, C08L 7706

Patent

active

060462825

ABSTRACT:
Reactive diluents comprise the amide and/or imidazoline reaction products of low molecular weight carboxylic acids, such as acetic acid, and polyalkyleneamines, such as 2-aminoethylpiperazine (AEP) and triethylenetetramine (TETA). The reactive diluents are prepared by condensation reaction of the carboxylic acid and the polyalkyleneamine at elevated temperature generating a mixture of unreacted polyalkyleneamine, amides and/or imidazolines. The reactive diluent reaction products are used to reduce the viscosity of high viscosity polyamidoamines prepared from fatty dimer acids and polyethyleneamines. Also disclosed is an epoxy composition comprising the epoxy curative composition of a polyamidoamine curing agent reduced in viscosity by the addition of the reactive diluent reaction product and an epoxy resin, such as the diglycidyl ether of bisphenol A.

REFERENCES:
patent: 4728384 (1988-03-01), Goel
patent: 5017675 (1991-05-01), Marten et al.
patent: 5114756 (1992-05-01), Mirabeau et al.
Chemical Abstracts--65-5465d, vol. 65, Aug. 1966.

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