Invention Grant
- Patent Title: Oleyl propylenediamine-based corrosion inhibitors
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Application No.: US17850981Application Date: 2022-06-27
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Publication No.: US11846029B2Publication Date: 2023-12-19
- Inventor: Zhengang Zong , Roger W. Fowee , Joe L. Schwartz , Ashish Dhawan , Jeremy Moloney
- Applicant: Ecolab USA Inc.
- Applicant Address: US MN St. Paul
- Assignee: Ecolab USA Inc.
- Current Assignee: Ecolab USA Inc.
- Current Assignee Address: US MN Saint Paul
- Agency: Fredrikson & Byron, P.A.
- The original application number of the division: US16561560 2019.09.05
- Main IPC: C23F11/14
- IPC: C23F11/14 ; G21C13/02 ; G21C13/08 ; C02F5/12 ; C09K8/54 ; C02F103/02

Abstract:
Disclosed are oleyl propylenediamine-based compounds used in compositions and methods for inhibiting corrosion. The method comprises introducing into a fluid source a composition comprising one or more oleyl propylenediamine-based compounds comprising Formula I:
wherein Y1, Y2, and Y3 independently are hydrogen or a substituent of Formula (II):
wherein V is —O— or —NH—, W is optionally present and is a linear or branched C1-10 aliphatic group, X is —H, —NZ3+, —COOH, —SO3H, —OSO3H2, —PO3H, —OPO3H2, or a salt thereof, each Z independently is hydrogen or a linear or branched C1-20 aliphatic group optionally interrupted or substituted with one or more oxygen atoms, and R is hydrogen or methyl, provided that at least one of Y1, Y2, or Y3 is a substituent of Formula (II).
wherein Y1, Y2, and Y3 independently are hydrogen or a substituent of Formula (II):
wherein V is —O— or —NH—, W is optionally present and is a linear or branched C1-10 aliphatic group, X is —H, —NZ3+, —COOH, —SO3H, —OSO3H2, —PO3H, —OPO3H2, or a salt thereof, each Z independently is hydrogen or a linear or branched C1-20 aliphatic group optionally interrupted or substituted with one or more oxygen atoms, and R is hydrogen or methyl, provided that at least one of Y1, Y2, or Y3 is a substituent of Formula (II).
Public/Granted literature
- US20230193478A2 OLEYL PROPYLENEDIAMINE-BASED CORROSION INHIBITORS Public/Granted day:2023-06-22
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