Cleaning liquid, and anticorrosive agent
AssigneeTokyo Ohka Kogyo Co., Ltd.
InventorsTomoya Kumagai, Takuya Ohhashi, Takahiro Eto, Daijiro Mori, Takayuki Haraguchi
Life of this patent
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Abstract
In a cleaning liquid containing (A) an anticorrosive agent, and (B) a solvent, a compound represented by the following formula (1): wherein, R represents a substituent group; m is an integer of 1 to 3; and n is an integer of 0 to 3, wherein provided that m is 2 or 3, R may be the same or different; or the following formula (2): HS—(CH2)x—OH (2) wherein, x is an integer of no less than 3, is used as the anticorrosive agent (A).
Claims8
A cleaning liquid comprising (A) a mercapto compound, and (B) a solvent, wherein
- the mercapto compound (A) is at least one selected from compounds represented by the following formula (1):
- wherein, R represents a group selected from the group consisting of a hydroxyl group, an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 4 carbon atoms, an alkylthio group having 1 to 4 carbon atoms, a hydroxyalkyl group having 1 to 4 carbon atoms, a mercaptoalkyl group having 1 to 4 carbon atoms, a halogenated alkyl group having 1 to 4 carbon atoms and a halogen atom;
- m is an integer of 1 to 3;
- and n is an integer of 0 to 3, wherein provided that m is 2 or 3, R may be the same or different;
- and the following formula (2):
- HS—(CH2)x—OH (2)
- wherein, x is an integer of no less than 3.
An anticorrosive agent for copper or a copper-containing alloy, the anticorrosive agent consisting of a compound represented by the following formula (1):
- wherein, R represents a group selected from the group consisting of a hydroxyl group, an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 4 carbon atoms, an alkylthio group having 1 to 4 carbon atoms, a hydroxyalkyl group having 1 to 4 carbon atoms, a mercaptoalkyl group having 1 to 4 carbon atoms, a halogenated alkyl group having 1 to 4 carbon atoms and a halogen atom;
- m is an integer of 1 to 3;
- and n is an integer of 0 to 3, wherein provided that m is 2 or 3, R may be the same or different,
- or the following formula (2):
- HS—(CH2)x—OH (2)
- wherein, x is an integer of no less than 3.
Dependencies are inferred from the claim text.