Amine derivatives of thio-bis-lactone acids in combination with coadditive hydrocarbons are flow improvers for middle distillate fuel oils
US4251232A · kind A · utility
2Cited by
3References
13Claims
0Family size
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Key dates
| Filing date | Sep 21, 1978 |
| Grant date | Feb 17, 1981 |
| Priority date | — |
| Expiry date | Sep 21, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10L1/2418
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Amine salts, amic acids, amic acid amine salts bis-amides and imides of oil-soluble thio-bis-(C.sub.12-50 alkyl lactone acid), e.g. a secondary hydrogenated tallow amide of dithio-bis-(C.sub.16 -C.sub.24 alkyl lactone carboxylic acid), are useful in combination with a coadditive hydrocarbon such as an amorphous hydrocarbon or a hydrogenated polybutadiene in improving the cold flow properties of distillate hydrocarbon oils.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.