发明名称 |
Controlled release of perfluoropolyether antifoam additives from compounded rubber |
摘要 |
Antifoam compositions for functional fluids contain antifoam agents comprising perfluoropolyether compounds (PFPE). An automatic transmission fluid is provided containing the antifoam composition in a lubricating base oil, along with conventional additives such as antiwear agents. Automobile transmissions are provided that contain an automatic transmission fluid containing the new antifoam compositions. In a further embodiment, methods are provided for reducing foam in an engine oil or unwanted noise in an automobile transmission during operation, comprising lubricating the engine or transmission with a lubricating fluid containing the antifoam compositions of the invention.
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申请公布号 |
US2004157970(A1) |
申请公布日期 |
2004.08.12 |
申请号 |
US20030365358 |
申请日期 |
2003.02.12 |
申请人 |
SARKAR REUBEN;CALCUT BRENT D.;CHAPATON THOMAS J.;JONES MARIE-CHRISTINE G. |
发明人 |
SARKAR REUBEN;CALCUT BRENT D.;CHAPATON THOMAS J.;JONES MARIE-CHRISTINE G. |
分类号 |
B01D19/04;C08K5/06;C08L1/00;C08L23/08;C08L33/04;C08L71/02;C10M143/02;C10M145/24;C10M157/02;F01M11/00;F16H57/04;(IPC1-7):C08K5/06 |
主分类号 |
B01D19/04 |
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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