Title:
MANUFACTURE OF AQUEOUS MALAMINE RESIN SOLUTION
Document Type and Number:
Japanese Patent JPS53123492
Kind Code:
A
Abstract:
Process for obtaining aqueous solutions of melamine resin, characterized in that melamine is reacted with 1.5-8 moles of aqueous formaldehyde per mole of melamine first in alkaline solution at a temperature of 60-120ºC until the formation of methyl compounds and then it is condensed at temperatures of 25-65ºC and ph values of 4 - 6.8 at least until a sample, when dripping with water or saturated salt solution at 20º c, becomes clouded and the condensation is stopped by putting alkaline. (Machine-translation by Google Translate, not legally binding)
Inventors:
KARURUFURIIDO KEERERU
DEIITERU TEIHII
DEIITERU TEIHII
Application Number:
JP3819478A
Publication Date:
October 27, 1978
Filing Date:
April 03, 1978
Export Citation:
Assignee:
CASSELLA FARBWERKE MAINKUR AG
International Classes:
C08G12/32; C08G12/00; C08G12/38; C08G12/42; D21H17/51; (IPC1-7): C08G12/32