Liquid purification or separation – Processes – Preventing – decreasing – or delaying precipitation,...
Patent
1998-01-29
1999-12-14
Hruskoci, Peter A.
Liquid purification or separation
Processes
Preventing, decreasing, or delaying precipitation,...
210699, 210701, 252180, 252181, 422 15, 422 16, 422 17, C02F 514
Patent
active
060012641
ABSTRACT:
A water-treating agent comprising a ternary copolymer of conjugated dienesulfonic acid/(meth)acrylic acid/2-hydroxyethyl (meth)acrylate, or a ternary copolymer of conjugated dienesulfonic acid/(meth)acrylic acid/(meth)acrylamido-2-methylalkanesulfonic acid ternary copolymer, is effective against scaling and fouling in water systems and a method for treating water with the water-treating agent. When combined with a corrosion inhibitor, the water-treating agent exhibits an excellent anti corrosion effect.
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Katsumi Ito et al., "Production of Copolymer Containing Sulfonic Acid Group", Patent Abstracts of Japan, vol. 16, No. 194 (C-938), May 11, 1992.
Japan Synthetic Rubber, "Sulpho group-containing copolymers manufactured for treating water . . . " WPI/Derwent, AN 92-085281.
Katsumi Ito et al., "Manufacture of sulfo group-containing copolymers as scale inhibitors and dispersants" Chemical Abstracts, vol. 116, No. 26, Jun. 29, 1992, abst. no. 256737p, pp. 49-50.
Hirano Akihide
Ishikawa Katsuhiro
Morinaga Hideo
Suzuki Takashi
Hruskoci Peter A.
Japan Synthetic Rubber Co. Ltd.
Kurita Water Industries Ltd.
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