发明授权
- 专利标题： Alkaline degreasing solution and degreasing method employing the same
- 专利标题（中）： 碱性脱脂溶液及其脱脂方法
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申请号： US213242申请日： 1998-12-17
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公开(公告)号： US5935919A公开(公告)日： 1999-08-10
- 发明人: Mitsuo Shinomiya , Minoru Ishida , Shoji Shiraishi , Tamotsu Sobata
- 申请人： Mitsuo Shinomiya , Minoru Ishida , Shoji Shiraishi , Tamotsu Sobata
- 申请人地址： JPX Osaka
- 专利权人： Nippon Paint Co., Ltd.
- 当前专利权人： Nippon Paint Co., Ltd.
- 当前专利权人地址： JPX Osaka
- 优先权： JPX7-121909 19950519
- 主分类号： B08B3/08
- IPC分类号： B08B3/08 ; C11D1/72 ; C11D1/722 ; C11D3/08 ; C11D11/00 ; C23G1/14 ; C23G5/032 ; C23G5/04
摘要：
An alkaline degreasing solution containing 0.01 to 3 g/l of alkali silicate calculated as Si concentration, and 0.01 to 10 g/l of a nonionic surfactant having an HLB value (=20.times.Mw/M, where Mw represents the weight of a hydrophilic group part and M represents the molecular weight of the surfactant) of 5 to 11 and a structure being expressed in the following general formula (I), with a pH value of at least 9.5:R--O--(EO).sub.m (AO).sub.n H (I)where R represents alkyl group, EO represents ethylene oxide group, AO represents alkylene oxide group (propylene oxide group and/or butylene oxide group), m represents an addition molar number of EO which is an integer of 3 to 7, n represents an addition molar number of AO which is an integer of 1 to 6, and m and n satisfy the relation of n
公开/授权文献
- US5496211A Device for vertically conveying coins 公开/授权日：1996-03-05