Isocyanate blocked imidazoles and imidazolines for epoxy powder

Details Isocyanate blocked imidazoles and imidazolines for epoxy powder Isocyanate blocked imidazoles and imidazolines for epoxy powder

1978-02-27

1982-06-15

Nielsen, Earl A.

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

Synthetic resins

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

528 45, 528 52, 528 94, 528117, C08G 1858, C08G 5940

Patent

active

043352286

ABSTRACT:
This invention relates to the use of an isocyanate blocked imidazole or imidazoline compound as a catalyst for effecting cure of powdered epoxy resins. The isocyanate blocked imidazole or imidazoline imparts an extended pot life to a curable epoxy powder coating composition while effecting cure at substantially lower temperatures than normally would be required and with faster cure times.

REFERENCES:
patent: 3227679 (1966-01-01), Brown
patent: 3321549 (1967-05-01), Barth
patent: 3407175 (1968-10-01), Presley et al.
patent: 3438937 (1969-04-01), Christie
patent: 3489695 (1970-01-01), Green
patent: 3896082 (1975-07-01), Rensmann et al.
patent: 3956237 (1976-05-01), Doorakian et al.
patent: 3989673 (1976-11-01), Jenkins et al.

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