发明公开
- 专利标题: Hard surface cleaners
- 专利标题(中): ReinigungsmittelnfürharteOberflächen。
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申请号: EP92311276.7申请日: 1992-12-10
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公开(公告)号: EP0546828A1公开(公告)日: 1993-06-16
- 发明人: Cropper, James Dawson , Morris, Ronald Meredith , Kielman, Hendrik Simon , Wallaert, Raymond Jean
- 申请人: UNILEVER PLC , UNILEVER N.V.
- 申请人地址: Unilever House Blackfriars London EC4P 4BQ GB
- 专利权人: UNILEVER PLC,UNILEVER N.V.
- 当前专利权人: UNILEVER PLC,UNILEVER N.V.
- 当前专利权人地址: Unilever House Blackfriars London EC4P 4BQ GB
- 代理机构: Elliott, Peter William
- 优先权: GB9126307 19911211; GB9204194 19920227; GB9204977 19920306
- 主分类号: C11D17/00
- IPC分类号: C11D17/00 ; C11D3/00 ; C11D3/08 ; C11D3/20 ; C11D3/33
摘要:
The present invention relates to foaming hard surface cleaners, and containers comprising the same in an enclosure. It is known, to provide foaming hard surface cleaners in a metal can together with a propellant to dispense the cleaner. Corrosion may occur on the interior surface of the can, in regions where the can contacts the liquid phase and more especially in regions where the can contacts the vapour phase (ie. in the headspace) and it is known to include in the composition a volatile amine, preferably a primary or secondary amine or ammonia. It is desirable to prevent corrosion in the gas phase while maintaining an acceptable product fragrance. In the compositions disclosed herein, adequate head space corrosion protection is attained with lower armonia levels, by inverting the can after filling and holding the can in an inverted position for a sufficient length of time for a protective film to form in the eventual upper region of the can and subsequently reverting the can to a conventional attitude to complete formation of a protective film in the lower region of the can.
公开/授权文献
- EP0546828B1 Hard surface cleaners 公开/授权日:1996-03-06
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