发明授权
- 专利标题： Synergistic sequestering agent compositions
- 专利标题（中）： 协同螯合剂组合物
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申请号： US468214申请日： 1974-05-08
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公开(公告)号： US3959168A公开(公告)日： 1976-05-25
- 发明人: Hans Gunther Germscheid , Hans-Rudiger Kranick , Hans-Jorgen Rehm , Rolf Scharf , Hans-Joachim Schlusser
- 申请人： Hans Gunther Germscheid , Hans-Rudiger Kranick , Hans-Jorgen Rehm , Rolf Scharf , Hans-Joachim Schlusser
- 申请人地址： DT Dusseldorf
- 专利权人： Henkel & Cie G.m.b.H.
- 当前专利权人： Henkel & Cie G.m.b.H.
- 当前专利权人地址： DT Dusseldorf
- 优先权： DT2325829 19730522
- 主分类号： C09K3/00
- IPC分类号： C09K3/00 ; C02F5/00 ; C02F5/08 ; C02F5/10 ; C02F5/14 ; C11D3/36 ; C23F14/02 ; C02B5/00
摘要：
A synergistic sequestering agent composition comprising (a) 1-hydroxyethane-1,1-diphosphonic acid and its alkali metal and ammonium salts, or, preferably and (b) aminotrimethylenephosphonic acid and its alkali metal and ammonium salts, as well as (c) a phosphonopolycarboxylic acid selected from the group consisting of phosphonosuccinic acid, methylphosphonosuccinic acid and 2-phosphonobutane-1,2,4-tricarboxylic acid and their alkali metal and ammonium salts. The said mixture of sequestering agents is useful as a sequestering agent for aqueous solutions containing bivalent and trivalent cations especially in sub-stoichiometric amounts.
公开/授权文献
- US5577315A Method of upsetting rivets 公开/授权日：1996-11-26
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