C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
400/7833
C08L 77/06 (2006.01) C08K 3/26 (2006.01) C08K 3/28 (2006.01) C08K 5/16 (2006.01) C08L 79/08 (2006.01) C09D 7/02 (2006.01) H01B 3/30 (2006.01)
Patent
CA 1099421
A METHOD FOR STABILIZING A WATER-SOLUBLE COMPOSITION ABSTRACT OF THE DISCLOSURE A method for stabilizing a water-soluble resin composition which comprises adding, as a stabilizing agent, a carbonate and/or an organic carboxylate of a basic nitrogenous compound to the water-soluble composition in an amount of from about 0.01 to about 10 parts by weight based on 100 parts by weight of the resin content in the water-soluble composition, the water-soluble composition being prepared by condensation reacting an acid component consisting of 1,2,3,4-butane tetracarboxylic acid alone or a polycarboxylic acid component containing at least about 50 mol% of 1,2,3,4-butane tetracarboxylic acid and a diamine in the presence of a water-soluble solvent or, optionally, in the presence of the water-soluble solvent and water to obtain a condensation product having a residual acid value ratio of about 3 to about 50% of the acid value before condensation followed by formation of a salt of the condensation product with a basic nitrogenous compound. - 1 -
274533
Kojima Makoto
Shibata Hiroshi
Suzuki Yasuhiro
Yamaguchi Katsuhiko
George H. Riches And Associates
Nitto Electric Industrial Co. Ltd.
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