发明名称 |
CLEANING METHOD FOR POLYETHYLENE TEREPHTHALATE CONTAINERS |
摘要 |
A method for cleaning polyethylene terephthalate containers including contacting the PET container with an alkaline wash solution having a temperature ranging of less than about 60 .degree.C is disclosed. T he alkaline wash solution is formulated from a first concentrate, a second concentrate, an alkalinity source, and a balance of water. The firs t concentrate preferably has a first nonionic surfactant, a first builder, and acid in an amount effective to provide a phase stable solution. The second concentrate preferably has a second nonionic surfactant and a second builder. The first and second concentrate are presen t in the wash solution in a concentration ranging from about 0.3 wt.% to 2.0 wt.%. Preferably, the first nonionic surfactant has a cloud point ranging from about 5 .degree.C to 60 .degree.C.
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申请公布号 |
CA2271819(C) |
申请公布日期 |
2007.01.30 |
申请号 |
CA19962271819 |
申请日期 |
1996.11.15 |
申请人 |
ECOLAB INC. |
发明人 |
WEI, GUANG-JONG JASON;MCSHERRY, DAVID D.;VALENCIA, ARTURO;WICHMANN, GERALD K.;HERDT, BRANDON L.;CORDS, BRUCE R. |
分类号 |
B08B9/08;C11D3/20;B08B3/08;B08B3/10;C11D1/24;C11D1/66;C11D3/02;C11D3/04;C11D3/33;C11D3/34;C11D3/36;C11D3/60;C11D11/00;C11D17/08 |
主分类号 |
B08B9/08 |
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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