Invention Grant
- Patent Title: Use of polyesters as viscosity index improvers for aircraft hydraulic fluids
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Application No.: US16462356Application Date: 2017-12-12
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Publication No.: US11339346B2Publication Date: 2022-05-24
- Inventor: Stefan Karl Maier , Nicolai Kolb , Michael Neusius
- Applicant: Evonik Operations GmbH
- Applicant Address: DE Essen
- Assignee: Evonik Operations GmbH
- Current Assignee: Evonik Operations GmbH
- Current Assignee Address: DE Essen
- Agency: Taylor English Duma LLP
- Agent Philip P. McCann
- Priority: EP16203962 20161214
- International Application: PCT/EP2017/082341 WO 20171212
- International Announcement: WO2018/108869 WO 20180621
- Main IPC: C10M169/04
- IPC: C10M169/04 ; C10M105/74 ; C10M145/22 ; C10N20/04 ; C10N30/02 ; C10N40/08
Abstract:
The invention is related to a composition for use in hydraulic systems of an aircraft. The composition typically comprises an adipic acid-based polyester in a phosphate ester base stock substantially consisting of trialkyl phosphates.
Public/Granted literature
- US20190382681A1 USE OF POLYESTERS AS VISCOSITY INDEX IMPROVERS FOR AIRCRAFT HYDRAULIC FLUIDS Public/Granted day:2019-12-19
Information query
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