Epoxy-amine composition modified with hydroxyalkyl urethane

Details Epoxy-amine composition modified with hydroxyalkyl urethane Epoxy-amine composition modified with hydroxyalkyl urethane

2011-08-02

2011-08-02

Wu, David (Department: 1762)

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

Synthetic resins

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

C525S408000, C525S410000, C525S461000, C525S523000, C528S403000, C528S405000, C528S408000, C528S418000, C528S421000, C528S423000

Reexamination Certificate

active

07989553

ABSTRACT:
Disclosed is a novel epoxy-amine composition modified a hydroxyalkyl urethane, which is obtained as a result of a reaction between a primary amine (C1) and a monocyclocarbonate (C2), wherein modifier (C) is represented by the following formula (1):wherein R1is a residue of the primary amine, R2and R3are the same or different and are selected from the group consisting of H, alkyl, hydroxyalkyl, and n satisfies the following condition: n≧2. Diluents, pigments and additives can be used. Doping with the hydroxyalkyl-urethane modifier imparts to the cured composition superior coating performance characteristics, such as pot-life/drying, strength-stress, bonding, appearance, resistance to abrasion and solvents, etc., in a well-balanced state.

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