Title:
CORROSION INHIBITOR AND METHOD FOR PREVENTING CORROSION
Document Type and Number:
WIPO Patent Application WO/2019/082690
Kind Code:
A1
Abstract:
A corrosion inhibitor including a long-chain aliphatic amine, an anticorrosive for azole-based copper, and a low-molecular-weight polymer. A method for preventing corrosion that involves adding the long-chain aliphatic amine, the anticorrosive for azole-based copper, and the low-molecular-weight polymer to a cooling water system. A corrosion-resistant coating is formed on the surface of an iron-based member by the long-chain aliphatic amine. Excessive adsorption of the long-chain aliphatic amine to a copper-based member is prevented by the low-molecular-weight polymer. Corrosion of the copper-based member is prevented by the anticorrosive for azole-based copper.
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Inventors:
KIKKAWA TAKASHI (JP)
NAGAI NAOHIRO (JP)
NAGAI NAOHIRO (JP)
Application Number:
PCT/JP2018/038066
Publication Date:
May 02, 2019
Filing Date:
October 12, 2018
Export Citation:
Assignee:
KURITA WATER IND LTD (JP)
International Classes:
C23F11/14; C23F11/173; F28F19/00
Domestic Patent References:
| WO2014119788A1 | 2014-08-07 |
Foreign References:
| JPS5129338A | 1976-03-12 | |||
| CN105734582A | 2016-07-06 | |||
| JP2012201966A | 2012-10-22 |
Attorney, Agent or Firm:
SHIGENO, Tsuyoshi et al. (JP)
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