Invention Grant
- Patent Title: Water glycol-based hydraulic fluid
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Application No.: US17910879Application Date: 2021-04-01
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Publication No.: US11946015B2Publication Date: 2024-04-02
- Inventor: Hiroshi Kaneko
- Applicant: SHELL OIL COMPANY
- Applicant Address: US TX Houston
- Assignee: SHELL USA, INC.
- Current Assignee: SHELL USA, INC.
- Current Assignee Address: US TX Houston
- Agency: SHELL USA, INC.
- Priority: JP 20067577 2020.04.03
- International Application: PCT/EP2021/058650 2021.04.01
- International Announcement: WO2021/198435A 2021.10.07
- Date entered country: 2022-09-12
- Main IPC: C10M173/02
- IPC: C10M173/02 ; C10N30/06
Abstract:
The present invention provides a water-glycol hydraulic fluid comprising 0.3-0.6% by mass in total of fatty acid sodium salt and/or fatty acid, and 0.3-0.6% by mass of dimerized fatty acid. The water-glycol hydraulic fluid also comprises 20-60% by mass water, 20-60% by mass glycol, 0.01-0.06% by mass alkali hydroxide compound selected from potassium hydroxide and/or sodium hydroxide, and 1.0-5.0% by mass alkanolamine.
Information query
