发明名称 |
Aqueous alkali cleaning compositions |
摘要 |
Aqueous alkali cleaning compositions containing an alkali metal salt, an N-alkyl pyrrolidone derivative, and specific ethylene oxide/propylene oxide block copolymers having molecular weights of from about 1500 to about 2500. Such compositions can be employed as an aqueous concentrate or solution to clean a substrate such as a circuit board, wiring board or metal surface. Specific ethylene oxide/propylene oxide block copolymers protect plastic parts from corrosion by N-alkyl pyrrolidone derivatives without compromising N-alkyl pyrrolidone derivative cleaning ability.
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申请公布号 |
US5814588(A) |
申请公布日期 |
1998.09.29 |
申请号 |
US19960617606 |
申请日期 |
1996.03.19 |
申请人 |
CHURCH & DWIGHT CO., INC. |
发明人 |
CALA, FRANCIS R.;REYNOLDS, RICHARD A. |
分类号 |
C11D1/58;C11D1/722;C11D1/835;C11D3/10;H05K3/26;(IPC1-7):C11D1/722;C11D3/28;C11D3/37 |
主分类号 |
C11D1/58 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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