Relevant articles and documents
All total 6 Articles be found
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Whitmore,Landau
, p. 1797 (1946)
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VINYL SULFONIC ACID AQUEOUS SOLUTION AND METHOD OF PRODUCING THE SAME, AND VINYL SULFONIC ACID PURIFIED PRODUCT AND METHOD OF PRODUCING THE SAME
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Paragraph 0090; 0101; 0124, (2017/07/23)
PROBLEM TO BE SOLVED: To provide a vinyl sulfonic acid aqueous solution that can shorten the heat operation time in a dewatering step and suppress the occurrence of a viscous product and a method of producing the same, and a vinyl sulfonic acid purified product having excellent storage stability and a method of producing the same. SOLUTION: A vinyl sulfonic acid aqueous solution comprises 7-35 mass% of a sulfonic acid having a vinyl group, and 0. 0030-2.0 mass% of an ether compound having a sulfonic acid group. COPYRIGHT: (C)2015,JPOandINPIT
VINYLSULFONIC ACID, POLYMER OF THE SAME, AND METHOD FOR PRODUCING THE SAME
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Page/Page column 20, (2011/01/12)
(1) A vinyl sulfonic acid, having a double bond content of 95 wt.% or more, and (i) a sodium (Na) content of 1 ppm or less, and (ii) a content of at least one metal selected from the group consisting of alkali earth metal and first row transition metal of 1 ppm or less. Alternatively, (2) a vinyl sulfonic acid, having a double bond content of 95 wt.% or more, and (i) a sodium (Na) content of 100 ppb or less, and (ii) a content of at least one metal selected from the group consisting of alkali earth metal and first row transition metal of 100 ppb or less. Further, a homopolymer or copolymer thereof, a production method thereof, or a thin-film distillation apparatus suited for the production thereof.