发明名称 |
Low foam media cleaning detergent with nonionic surfactants |
摘要 |
A detergent for cleaning media is provided. The detergent comprises deionized water, between about 1% and about 5% by weight of a nonionic surfactant having an hydrophile/lipophile balance (HLB) value between about 10 and about 20, and an ethoxylation level between about 5 and about 20, between about 1% and about 5% by weight of a dispersing agent, between about 3% and about 10% by weight of a chelating agent comprising phosphonic acid, and between about 2% and about 6% by weight of an inorganic salt. |
申请公布号 |
US9040473(B1) |
申请公布日期 |
2015.05.26 |
申请号 |
US201012841121 |
申请日期 |
2010.07.21 |
申请人 |
WD Media, LLC |
发明人 |
Quah EE Boon;Wong Kwai Cheang;Liew Ming Yean;Chua Chung Lieh;Suzuki Yasuhiro |
分类号 |
C11D11/00;C11D3/20;C11D17/08;C11D3/37;B08B3/12;C11D3/36;C11D3/04 |
主分类号 |
C11D11/00 |
代理机构 |
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代理人 |
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主权项 |
1. A detergent for cleaning media, comprising:
water; between about 1% and about 5% by weight of a nonionic surfactant having an hydrophile/lipophile balance (HLB) value between about 10 and about 20, and an ethoxylation level between about 5 and about 20, wherein the nonionic surfactant is amine-free and comprises a surfactant having the chemical formula R—(OCH2CH2)n—OH, where R is an alkyl group of a parent alcohol, and n is a positive integer; between about 1% and about 5% by weight of a dispersing agent; between about 3% and about 10% by weight of a chelating agent comprising phosphonic acid; and between about 2% and about 6% by weight of an inorganic salt, wherein the detergent is substantially free of amine compounds and substantially free of anionic and cationic surfactants, and has a pH level of greater than 11, and wherein the chelating agent comprises hydroxyethylene diphosphonic acid (HEDP). |
地址 |
San Jose CA US |