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41.发明公开COPOLYMERS OF MONOCARBOXYLIC ACIDS AND DICARBOXYLIC ACIDS, THEIR PREPARATION AND USE 有权一元和二元羧酸，生产和使用的共聚物
公开(公告)号：EP2588500A1
公开(公告)日：2013-05-08
申请号：EP11730269.5
申请日：2011-06-30
Applicant: BASF SE
Inventor： LAUBENDER, Matthias , HEINTZ, Ewald , SEIDL, Clarissa , URTEL, Bolette , BERGER, Alexsandro
CPC classification number: C08F2/38 , C08F2/32 , C08F4/30 , C08F220/06 , C11D3/3757 , C08F222/06 , C08F230/02
Abstract: The invention relates to a process for preparing a polymer by free-radical polymerization of at least one ethylenically unsaturated monocarboxylic acid and/or a salt thereof,at least one ethylenically unsaturated dicarboxylic acid and/or an anhydride and/or a salt thereof,in the presence of hypophosphorous acid and/or a salt thereof. The invention also relates to a polymer composition obtainable by this process. The invention also relates to the use of such a polymer composition as detergent additive, e.g. as dispersant, scale inhibitor or sequestrant for laundry detergents.
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