发明名称 |
Alkane diol foam controlling agents |
摘要 |
The present invention pertains to a method for controlling the foaming of a waterborne composition or an industrial process by the incorporation of a foam controlling agent. The method comprises utilizing as the foam controlling agent a compound of the formula:R1 and R2 are independently selected from the group of alkyl radicals having from 3 to 6 carbon atoms. R3 and R4 are independently alkyl radicals having from 1 to 2 carbon atoms. n is an integer from 1 to 6. The compound generates an initial (t=0 min.) or a final (t=10 min.) foamed density at least 30% greater than that of a 0.5 wt % aqueous solution of a 12 mole ethoxylate of a C12-C15 primary alcohol (C12-C15E12) when added at 0.2 wt % to the C12-C15E12 solution. The present invention also pertains to an aqueous composition comprising the foam controlling agent.
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申请公布号 |
US6762208(B2) |
申请公布日期 |
2004.07.13 |
申请号 |
US20010968204 |
申请日期 |
2001.10.01 |
申请人 |
AIR PRODUCTS AND CHEMICALS, INC. |
发明人 |
SCHWARTZ JOEL;READER CHARLES JAMES;STOUT WIM PETER;LEE YONG JIN;KRETZ CHRISTINE MARIE |
分类号 |
B01D19/04;C09D11/02;C09D201/00;C09J201/00;C11D1/83;C11D3/10;C11D3/20;C11D3/43;C11D17/08;(IPC1-7):B01D19/04 |
主分类号 |
B01D19/04 |
代理机构 |
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主权项 |
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地址 |
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