发明授权
- 专利标题： Process for preparing polymeric acetal carboxylates
- 专利标题（中）： 制备聚合缩醛羧酸盐的方法
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申请号： US769839申请日： 1985-08-27
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公开(公告)号： US4600750A公开(公告)日： 1986-07-15
- 发明人: David R. Dyroff , Edward J. Burke , William Vanderlinde , Thomas W. Backes
- 申请人： David R. Dyroff , Edward J. Burke , William Vanderlinde , Thomas W. Backes
- 申请人地址： MO St. Louis
- 专利权人： Monsanto Company
- 当前专利权人： Monsanto Company
- 当前专利权人地址： MO St. Louis
- 主分类号： C08G2/00
- IPC分类号： C08G2/00 ; C08G2/10 ; C08G2/14 ; C08G2/30 ; C11D3/37 ; C08G6/00 ; C08L61/02
摘要：
An improved process is provided for producing polymeric acetal carboxylate salts useful as detergent builders. The process comprises polymerization of an alkyl glyoxylate, optionally with one or more comonomers; addition of stabilizing endgroups; and saponification of the polymeric ester to produce the polymeric acetal carboxylate salts. Active yield is improved by reducing the number of polymer chains with unstable temporary endcaps entering the saponification step.
公开/授权文献
- US5130428A Preparation of 6-trifluoromethyl-1,3,5-triazines 公开/授权日：1992-07-14
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