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US 2025/0034474 A1Published application
Lubricating compositions
AssigneeSolvay Specialty Polymers USA, LLC
InventorsChristine Hamon, Gaetano Calvaruso, Kelly D. Branham, Hong Chen
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Abstract
The present patent application relates to the use of non fluorinated aromatic polymers as additives for fluorinated lubricants.
Claims13
A composition comprising:
- (A) from 99.9% to 65.0% by weight, based on 100% by weight of said composition, of at least one hydrogenated or (per)fluorinated oil, and
- (B) from 0.1% to 35.0% by weight, based on 100% by weight of said composition, of at least one aromatic polymer:
- having a melting point of at least 150° C. and
- being in the form of powder having an average particle size (d50) in the range from above 1 micrometer and up to 15 micrometers, as measured by laser diffraction particle size analysis as volume particle size distribution, and a surface area from 0.5 to less than 5 m2/g, as determined by gas adsorption using the BET method according to ISO 9277.
1 more element
Dependencies are inferred from the claim text.