| 摘要 |
PURPOSE: To obtain the subject composition efficiently removing dirts on the solid surfaces of precise part items or tools used for their assembling process without corroding metals or alloys contained in the material or the tools by including a carbonate of a specific amine-based compound. CONSTITUTION: This composition contains carbonate of an amine-based compound having an N-atom number of 1-5 and a molecular weight of 50-300 (preferably monoethanolamine, morpholine or diaminopropane, etc.) preferably in an amount of 0.1-50wt.%. Preferably, 10-70wt.% alkylene oxide compound selected from formulae I-III (R<1> is a 1-8C hydrocarbon; R<2> and R<3> are each a 2-4C alkylene; X is H or a 1-4C alkyl, etc.; (m) is 1-7; (n) is 0-7; (p) and (q) are each 0-5) is further mixed in the composition to improve detergency. As the alkylene oxide compound, ethylene glycol dimethyl ether or propylene glycol diacetate, etc., is preferable. |
