Process for preparing polymeric acetal carboxylates |
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| 申请号 | EP86870122 | 申请日 | 1986-08-26 | 公开(公告)号 | EP0216741A3 | 公开(公告)日 | 1988-12-07 |
| 申请人 | Monsanto Company; | 发明人 | Dyroff, David Ray; Burke, Edward John; Backes, Thomas Whitner; Vanderlinde, William; | ||||
| 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. | ||||||
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| 说明书全文 | |||||||
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