Epoxy resin powder coating containing imidazole trimellitates

Details Epoxy resin powder coating containing imidazole trimellitates Epoxy resin powder coating containing imidazole trimellitates

1991-09-05

1992-10-06

Sellers, Robert E.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

525486, 525524, 525526, C08L 6302, C08L 6304, C08L 6306

Patent

active

051532395

ABSTRACT:
An epoxy resin powder coating composition having excellent thermal resistance, mechanical strength, hardening speed and storage stability which comprises an epoxy resin mixture comprising a bisphenol type epoxy resin and a polyfunctional epoxy resin having at least three epoxy groups in the molecule; a hardener comprising a mixture of dicyandiamide and a compound represented by formula (I) below, and a filler: ##STR1## wherein, R.sup.1 represents an alkyl group or an aryl group, and preferably represents a phenyl group from the view of storage stability; and R.sup.2 represents a cyanoethyl group, a vinyl group, or a phenyl group.
The powder coating composition is suitably used in fixing stator coils or armature coils in motors or generators.

REFERENCES:
patent: 3523037 (1970-08-01), Chellis
patent: 3842035 (1974-10-01), Klaren
patent: 3962184 (1976-06-01), Notomi et al.
patent: 3987230 (1976-10-01), Gaku et al.
patent: 4007299 (1977-02-01), Schulde et al.
patent: 4440914 (1984-03-01), Helfand et al.
patent: 4757117 (1988-07-01), Moss
patent: 4772645 (1988-09-01), Tarbutton et al.

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