Mixture of polymers, lubricating fluid and porous materials comprising said mixture, and surface bearing said mixture
US11426490B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Mar 1, 2021 |
| Grant date | Aug 30, 2022 |
| Priority date | — |
| Expiry date | Mar 1, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2050/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A mixture of polymers with lubricating properties is provided. The polymer can be used to produce a lubricating fluid. They can also be born on a surface or embedded in a porous material. This mixture of polymers comprises (a) a pharmaceutically acceptable bottle-brush polymer comprising a backbone with polymeric pendant chains, and (b) a pharmaceutically acceptable linear polymer. In the lubricating fluid, the bottle-brush polymer and the linear polymer are dissolved together in a pharmaceutically acceptable solvent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.