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1. 发明授权

US5482645A Non-ozone depleting cleaning composition for degreasing and defluxing purposes 失效
标题翻译：用于脱脂和去焊剂目的的非消耗臭氧层清洁组合物
公开(公告)号：US5482645A
公开(公告)日：1996-01-09
申请号：US226086
申请日：1994-04-11
申请人： Akihiro Maruyama , Bjorn Bergenstahl , Eric Van de Hoek
发明人： Akihiro Maruyama , Bjorn Bergenstahl , Eric Van de Hoek
IPC分类号： B01F17/38 , B01F17/44 , B23K1/00 , C11D1/66 , C11D1/72 , C11D1/825 , C11D3/20 , C11D7/26 , C11D7/50 , C23G5/032 , H05K3/26 , C11D3/43
CPC分类号： C11D3/2093 , C11D1/667 , C11D1/825 , C11D3/201 , C11D3/2013 , C23G5/032 , C11D1/72 , H05K3/26
摘要： The invention relates to non-ozone depleting cleaning compositions for degreasing elements in manufacturing and engineering processes like oily machine parts and for defluxing printed circuit boards, used in the electric and electrical industry. The composition according to the invention contains at least one C.sub.6-12 alkyllactate ester, preferably 2-ethyl hexyl lactate, in an amount of 70-99% by weight and at least one emulsifier, preferably n-octanol, in an amount of 1-30% by weight. One of the main advantages of the present cleaning composition is based on the fact that in the rinsing step with water for removing the cleaning composition from the treated surface an emulsion is formed, which on the one hand is stable enough for having proper rinsing ability and on the other hand--after the rinsing step--will separate rather quickly into an oil and a water phase. This last mentioned phenomenon provides the benefits of reusing the active cleaning agent, i.e. the C.sub.6-12 alkyllactate ester and reusing and/or partly discarding the waste water being toxicologically and environmentally safe.
摘要翻译：本发明涉及用于在电气和电气工业中使用的制造和工程过程中的脱脂元件的无臭氧消耗清洁组合物，例如油性机器部件和用于去焊的印刷电路板。根据本发明的组合物含有至少一种70-99重量％的C 6-12烷基乳酸酯，优选2-乙基己基乳酸酯，和至少一种乳化剂，优选正辛醇，其量为1- 30重量％。本发明清洁组合物的主要优点之一是基于以下事实：在用于从处理过的表面除去清洁组合物的水的漂洗步骤中，形成乳液，这一方面足够稳定以具有适当的漂洗能力和另一方面，在漂洗步骤之后，将相当快地分离成油和水相。这最后提到的现象提供了重新使用活性清洁剂即C6-12烷基乳酸酯并且重新使用和/或部分地废弃在毒理学和环境上安全的废水的益处。

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