Diglycidyl/isophoronediamine adduct,...

Details Diglycidyl/isophoronediamine adduct,... Diglycidyl/isophoronediamine adduct,...

2007-01-24

2009-10-06

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...

C528S122000

Reexamination Certificate

active

07598325

ABSTRACT:
The present invention relates to a curing agent for epoxy resins comprising (A) an epoxy adduct of isophoronediamine, (B) an epoxy adduct of 1,3-bis(aminomethyl) cyclohexane, (C) isophoronediamine and (D) 1,3-bis (aminomethyl) cyclohexane wherein the weight ratio of (D) to (C) (=(D)/(C)) in said curing agent is in the range of 0.04 to 0.22, which can provide an epoxy resin composition with excellent curing performances such as curability under the condition of low temperature, excellent performances of epoxy resin cured coating films, excellent chemical resistance of epoxy resin cured coating films and excellent physical properties of epoxy resin cured products.

REFERENCES:
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patent: 5959061 (1999-09-01), Neumann et al.
patent: 6048944 (2000-04-01), Epple et al.
patent: 6528595 (2003-03-01), Ikawa et al.
patent: 2006/0003166 (2006-01-01), Wissing et al.

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