Polyamide curative from substituted amine mixture and dimer...

Details Polyamide curative from substituted amine mixture and dimer... Polyamide curative from substituted amine mixture and dimer...

2008-03-21

2010-02-02

Sellers, Robert (Department: 1796)

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

Synthetic resins

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

C525S423000

Reexamination Certificate

active

07655736

ABSTRACT:
The present invention provides polyamide curing agent compositions comprising the reaction products of (1) multifunctional amines of structure 1where R1is CH2CH2CH2NH2; R2, R3and R4independently are H or CH2CH2CH2NH2, and X is CH2CH2 or CH2CH2CH2 with (2) dimer fatty acids, optionally in combination with monofunctional fatty acids, the reaction product preferably comprising at least 15 wt % tetrahydropyrimidine-containing components. The curing agent compositions are useful for crosslinking epoxy resins to produce coatings, adhesives, floorings, composites and other articles.

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