- Patent Title: Multi-amine polyester dispersant made via an anhydride intermediate
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Application No.: US16647732Application Date: 2018-09-18
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Publication No.: US11326105B2Publication Date: 2022-05-10
- Inventor: Elliot Coulbeck , Dean Thetford
- Applicant: Lubrizol Advanced Materials, Inc.
- Applicant Address: US OH Cleveland
- Assignee: Lubrizol Advanced Materials, Inc.
- Current Assignee: Lubrizol Advanced Materials, Inc.
- Current Assignee Address: US OH Cleveland
- Agency: The Lubrizol Corporation
- Agent Vincent Cortese; Teresan Gilbert
- International Application: PCT/US2018/051449 WO 20180918
- International Announcement: WO2019/060278 WO 20190328
- Main IPC: C08G63/91
- IPC: C08G63/91 ; C09K23/00 ; C08G73/02 ; C08G69/44 ; C09D167/02 ; C09D177/12 ; C09K23/16
Abstract:
The present invention relates to a dispersant derived from anhydride functionalized polyester derived from carboxylic acid functionalized polyester. The anhydride functionalized polyester is then reacted with a multi-amine species forming amide and salt bonds. The technology allows lower reaction temperatures when the multi-amine species is present. The lower reaction temperature allows the use of a broader selection of polyester repeat units.
Public/Granted literature
- US20200230561A1 Multi-Amine Polyester Dispersant made via an Anhydride Intermediate Public/Granted day:2020-07-23
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