Oil soluble polyoxybutylene polymers as friction modifiers for lubricants
US9914895B2 · kind B2 · utility
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5Claims
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Key dates
| Filing date | May 13, 2014 |
| Grant date | Mar 13, 2018 |
| Priority date | — |
| Expiry date | May 13, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2030/06
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Provided are lubricant compositions comprising a hydrocarbon base oil and a polyoxybutylene polymer prepared by polymerizing butylene oxide with a monol initiator and having a number average molecular weight ranging from 800 g/mol to 1200 g/mol. The polyoxybutylene polymer functions as a highly active friction-modifier additive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.