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公开(公告)号：US20200002508A1
公开(公告)日：2020-01-02
申请号：US16489066
申请日：2018-03-05
发明人： Josef BERGHOFER , Stefan MARK , Stefanie ENDERLE
IPC分类号： C08K5/41 , C08F4/40 , C08F2/22 , C08K5/1535
摘要： The invention relates to a synergistically active composition which comprises a mixture of a sulfinic acid or a salt thereof and ascorbic acid or a salt thereof and the use of the composition as reducing agent. The reducing power of the composition of the invention is significantly higher than the reducing power of the single components.
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公开(公告)号：US20200062701A1
公开(公告)日：2020-02-27
申请号：US16467351
申请日：2017-12-12
IPC分类号： C07C313/04 , C08F220/12
摘要： The preparation and use of mixed salts of hydroxyalkane sulfinic acids and optionally hydroxyalkane sulfonic acids as a reducing agent are disclosed. The reducing power of the salts is significantly higher than the reducing power of the corresponding zinc salt. The storage stability of the salts as solids and as aqueous solution is significantly higher than one of the corresponding sodium salts.
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公开(公告)号：US20200095198A1
公开(公告)日：2020-03-26
申请号：US16467377
申请日：2017-12-12
IPC分类号： C07C309/17 , C08F220/06
摘要： A sulfonic acid salt composition includes compounds of formula (I), wherein n is 1 or 2, R1 is H or C1-C6 alkyl, R2 is COOM, SO3M or CH(OH)SO2-OM, each M is an equivalent of a multivalent metal, preferably magnesium, calcium, aluminum, zinc and combinations thereof. The molar ratio of a compound wherein n is 1 to a compound wherein n is 2 is below 0.1. The sulfonic acid salt composition is useful for color stabilization of non-living organic matter such as from lacquers, paints, powder-coatings, and polymers in particular water-absorbent polymers.
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