发明公开
EP0538969A2 Composition and method for inhibiting scale and corrosion using naphthylamine polycarboxylic acids
失效
组合物和用于抑制腐蚀的规模和使用Naphtylaminpolykarbonsäuren方法。
- 专利标题: Composition and method for inhibiting scale and corrosion using naphthylamine polycarboxylic acids
- 专利标题(中): 组合物和用于抑制腐蚀的规模和使用Naphtylaminpolykarbonsäuren方法。
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申请号: EP92250290.1申请日: 1992-10-09
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公开(公告)号: EP0538969A2公开(公告)日: 1993-04-28
- 发明人: Carter, Charles G. , Kreh, Robert Paul , Fan, Lai-Duien Grace
- 申请人: W.R. Grace & Co.-Conn.
- 申请人地址: Grace Plaza, 1114 Avenue of the Americas New York, New York 10036 US
- 专利权人: W.R. Grace & Co.-Conn.
- 当前专利权人: W.R. Grace & Co.-Conn.
- 当前专利权人地址: Grace Plaza, 1114 Avenue of the Americas New York, New York 10036 US
- 代理机构: UEXKÜLL & STOLBERG
- 优先权: US782360 19911024
- 主分类号: C23F11/14
- IPC分类号: C23F11/14 ; C02F5/12 ; C23F11/16 ; C07C309/47 ; C08G65/26 ; C08G65/22 ; C23F11/173
摘要:
A composition useful for treating aqueous systems comprising a naphthylamine polycarboxylic acid having the formula:
wherein X is CO 2 H or SO 3 H, Y is H, C 1 to C 6 alkyl, CO 2 H or SO 3 H, R is H, C 1 to C 6 alkyl, CO 2 R' or COR', R' is C 1 to C 6 alkyl, n is an integer from 1 to 20, and water soluble salts thereof.
wherein X is CO 2 H or SO 3 H, Y is H, C 1 to C 6 alkyl, CO 2 H or SO 3 H, R is H, C 1 to C 6 alkyl, CO 2 R' or COR', R' is C 1 to C 6 alkyl, n is an integer from 1 to 20, and water soluble salts thereof.
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