Mixture of rough and spheroidized resin particles

Details Mixture of rough and spheroidized resin particles Mixture of rough and spheroidized resin particles

1978-10-10

1981-01-06

Nielsen, Earl A.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

264 15, 525 50, 525 55, 525191, 525533, 525934, 528 94, 528502, C08J 312, C08G 5900

Patent

active

042437946

ABSTRACT:
Free flowing resin powder which upon striking a heated article fuses, flows and hardens to provide a protective coating, which powder consists of a mixture of rough and rounded particles, the rough particles having a granular appearance as a result of being pulverized and the rounded particles having smooth, glossy, spheroidized surfaces as a result of being briefly heated to a temperature above the softening point. Preferably each particle of the powder is a blend of thermosetting resin and curing agent.

REFERENCES:
patent: 2969038 (1961-01-01), Neumann
patent: 2976574 (1961-03-01), Keutgen et al.
patent: 3196033 (1965-07-01), Brooks
patent: 3263980 (1966-08-01), Feder et al.
patent: 3505434 (1970-04-01), Battaerd
patent: 3877918 (1975-04-01), Cerbo
patent: 3887668 (1975-06-01), Monjo
patent: 3896196 (1975-07-01), Dickey et al.
patent: 3933954 (1976-01-01), Gebhard et al.
patent: 4040993 (1977-08-01), Elbling et al.

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