发明授权
- 专利标题: Aluminum surface cleaning agent
- 专利标题(中): 铝表面清洗剂
-
申请号: US80527申请日: 1987-07-31
-
公开(公告)号: US4886616A公开(公告)日: 1989-12-12
- 发明人: Katsuyoshi Yamasoe , Kiyotado Yasuhara , Satoshi Ikeda
- 申请人: Katsuyoshi Yamasoe , Kiyotado Yasuhara , Satoshi Ikeda
- 申请人地址: PA Ambler
- 专利权人: Amchem Products, Inc.
- 当前专利权人: Amchem Products, Inc.
- 当前专利权人地址: PA Ambler
- 优先权: JPX59-22996 19841030
- 主分类号: C23G1/12
- IPC分类号: C23G1/12 ; C11D7/08
摘要:
Chromium free cleaning compositions for cleaning aluminum and aluminum alloy surfaces comprisingA. from 0.2-4 g/l ferric ion andB. sufficient sulfuric and/or nitric acid to produce a pH of 2 or less.The invention also relates to compositions containing from 0.001-0.5 g/l of fluoride ions.
公开/授权文献
- USD410923S Digital audio disc player 公开/授权日:1999-06-15
信息查询