Preparation method of amino resin particulate having narrow particle size distribution
US5049645A · kind A · utility
100Cited by
4References
4Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 12, 1990 |
| Grant date | Sep 17, 1991 |
| Priority date | — |
| Expiry date | Mar 12, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G12/38
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.