- Patent Title: Use of di-ionic compounds as corrosion inhibitors in a water system
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Application No.: US16116413Application Date: 2018-08-29
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Publication No.: US11021383B2Publication Date: 2021-06-01
- Inventor: Ashish Dhawan , Jeremy Moloney , Carter M. Silvernail , Boyd A. Laurent
- Applicant: ECOLAB USA INC.
- Applicant Address: US MN Saint Paul
- Assignee: ECOLAB USA INC.
- Current Assignee: ECOLAB USA INC.
- Current Assignee Address: US MN Saint Paul
- Agency: McKee, Voorhees & Sease, PLC
- Main IPC: C02F5/12
- IPC: C02F5/12 ; C23F11/14 ; C07F9/54 ; C11D7/32 ; C23F11/10 ; C07C231/12 ; C07C237/06 ; C11D1/62 ; C11D3/386 ; C02F1/68

Abstract:
Disclosed herein are the methods of using di-cationic or di-anionic compounds, which are derived from primary amine through an aza-Michael addition with an activated olefin, in a corrosion control composition to mitigate corrosion of a surface in a water system. The disclosed methods or compositions are found to be more effective than those methods or compositions including commonly used single quaternary compounds for mitigating corrosion for a metal surface in water systems.
Public/Granted literature
- US20190062187A1 USE OF DI-IONIC COMPOUNDS AS CORROSION INHIBITORS IN A WATER SYSTEM Public/Granted day:2019-02-28
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