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1. (WO2018037579) CLEANING COMPOSITION AND CLEANING METHOD

Pub. No.:    WO/2018/037579    International Application No.:    PCT/JP2016/085861
Publication Date: Fri Mar 02 00:59:59 CET 2018 International Filing Date: Sat Dec 03 00:59:59 CET 2016
IPC: C11D 7/26
C11D 7/24
C11D 7/32
C11D 7/34
C11D 7/50
C23G 5/024
C23G 5/036
Applicants: KAKEN TECH CO., LTD.
化研テック株式会社
Inventors: HORI Shigeo
堀 薫夫
NAKATSUKASA Hiroki
中司 宏樹
AKAMATSU Yuki
赤松 悠紀
Title: CLEANING COMPOSITION AND CLEANING METHOD
Abstract:
The purpose of the invention is to provide: a cleaning composition which is environmentally safe and has excellent cleaning performance by including a predetermined amount of water, and which can effectively suppress metallic corrosion in an object to be cleaned; and a cleaning method using the cleaning composition. The invention provides a cleaning composition which is used in a emulsion state to clean objects to be cleaned, wherein the cleaning composition includes first to fourth organic solvents and water, the first organic solvent is a compound such as a predetermined hydrophobic aromatic compound, the second organic solvent is a predetermined hydrophobic monoalcohol compound, the third organic solvent is, for example, a predetermined hydrophilic nitrogen-containing compound, the fourth organic solvent is a predetermined hydrophilic amine compound, the content of water is within a range of 50 to 3900 parts by weight relative to 100 parts by weight of the total amount of the organic solvents, and when phase-separated into an oil phase and a water phase, the water concentration in the oil phase (measured at a temperature of 25°C) is 5 weight% or less.