Ultra-low molecular weight imide containing quaternary ammonium salts having short hydrocarbon tails
US11254646B2 · kind B2 · utility
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19Claims
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Key dates
| Filing date | Dec 2, 2016 |
| Grant date | Feb 22, 2022 |
| Priority date | — |
| Expiry date | Jun 17, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present technology is related to imide containing quaternary ammonium salts having a hydrocarbyl substituent of number average molecular weight less 300, and additive packages having such quaternary ammonium salts and improved stability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.