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 代理人
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