Invention Grant
- Patent Title: Solid film lubricant, method for producing same, sliding element comprising same and use thereof
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Application No.: US16646706Application Date: 2018-09-07
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Publication No.: US11542408B2Publication Date: 2023-01-03
- Inventor: Achim Adam , Joachim Schluter
- Applicant: FEDERAL-MOGUL WIESBADEN GMBH
- Applicant Address: DE Wiesbaden
- Assignee: FEDERAL-MOGUL WIESBADEN GMBH
- Current Assignee: FEDERAL-MOGUL WIESBADEN GMBH
- Current Assignee Address: DE Wiesbaden
- Agency: Dickinson Wright, PLLC
- Agent Robert L. Stearns
- Priority: DE102017216109.4 20170912
- International Application: PCT/EP2018/074103 WO 20180907
- International Announcement: WO2019/052905 WO 20190321
- Main IPC: C09D179/08
- IPC: C09D179/08 ; C09D5/00 ; C10M107/44 ; C10M169/04 ; F16C33/10 ; F16C33/20 ; C10N50/00 ; C10N30/06

Abstract:
The invention relates to an imide polymer-based solid film lubricant, a method for producing same, a sliding element comprising same and the use thereof. According to the method, difunctional or cyclized difunctional compounds and optionally functional fillers are added to a non-imidized or partly imidized polyamide acid prepolymer or an imidized short-chain blocked prepolymer in a solvent or solvent mixture and then, depending on the prepolymer, a polymerization reaction or an imidization reaction and in both cases a crosslinking reaction is carried out. The solid film lubricant comprises an imide polymer as the resin matrix and optionally functional fillers, the molecules of the imide polymer comprising groups (R1) of the difunctional compounds that additionally contribute to the crosslinking.
Information query
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