Preparation method of amino resin particulate having narrow part

Details Preparation method of amino resin particulate having narrow part Preparation method of amino resin particulate having narrow part

1990-03-12

1991-09-17

Kight, III, John

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

Synthetic resins

From aldehyde or derivative thereof as reactant

528232, 528242, 528245, 528248, 528254, 528256, 528258, 528268, 528499, 528502, C08G 1206

Patent

active

050496450

ABSTRACT:
A continuous preparation method of an amino resin particulate having a maximum particle size of 40 .mu.m or less and an average particle size of from 5 to 15 .mu.m is described. The method comprises the steps of reacting amino compounds with aldehydes in the presence of an acid catalyst in an aqueous solution to form a solid product and classifying said solid product in the form of a slurry with a combination of at least two grinders and at least two classifiers.

REFERENCES:
patent: 4188268 (1980-02-01), Sugahara
patent: 4324768 (1982-04-01), Sugahara et al.
patent: 4652270 (1987-03-01), Sadler, III
patent: 4832866 (1989-05-01), Schulz et al.

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