Method for producing a methylene disulfonate compound

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United States of America Patent

PATENT NO 8501966
APP PUB NO 20130137881A1
SERIAL NO

13814320

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Abstract

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The present invention provides a method for producing a methylene disulfonate compound including reacting, in the presence of an acid and a dehydrating agent, a formaldehyde compound with at least one salt of alkanedisulfonic acid selected from the group consisting of alkali metal salts of alkanedisulfonic acid and alkaline earth metal salts of alkanedisulfonic acid each represented by a specific formula. According to the method of the present invention, a methylene disulfonate compound can be obtained in a simple manner at low cost.

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Patent Owner(s)

  • SUMITOMO SEIKA CHEMICALS CO., LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bando, Seiji Hyogo, JP 18 168
Fujiwara, Takeshi Hyogo, JP 112 675
Hiyama, Takehiro Hyogo, JP 10 17
Shiraishi, Hiroyuki Hyogo, JP 43 165

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