发明授权
US5043099A Mono- and di-substituted (diphosphonoalkylamino
methyl)-4-hydroxybenzenesulfonic acid
失效
单 - 和二 - 取代(二膦酰基烷基氨基甲基)-4-羟基苯磺酸
- 专利标题: Mono- and di-substituted (diphosphonoalkylamino methyl)-4-hydroxybenzenesulfonic acid
- 专利标题(中): 单 - 和二 - 取代(二膦酰基烷基氨基甲基)-4-羟基苯磺酸
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申请号: US554041申请日: 1990-07-13
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公开(公告)号: US5043099A公开(公告)日: 1991-08-27
- 发明人: Robert P. Kreh , Charles G. Carter
- 申请人: Robert P. Kreh , Charles G. Carter
- 专利权人: Kreh Robert P,Carter Charles G
- 当前专利权人: Kreh Robert P,Carter Charles G
- 主分类号: C02F5/14
- IPC分类号: C02F5/14 ; C07F9/38 ; C23F11/167
摘要:
New polyamino-polyphosphonic-hydroxybenzenesulfonic acid compounds as the free acid or their alkali or alkaline earth metal salt. Specifically, the compounds are the mono- and di-(1,1-diphosphono-1-alkylaminomethyl)-4-hydroxybenzenesulfonic acid. These compounds are useful as corrosion inhibiting agents for metal/water applications.
公开/授权文献
- US5707996A Pharmaceutical solution and methods for preparation thereof 公开/授权日:1998-01-13
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