Lactone acid synthesis
US3936472A · kind A · utility
12Cited by
3References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 19, 1973 |
| Grant date | Feb 3, 1976 |
| Priority date | — |
| Expiry date | Jan 19, 1993 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2040/08
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Alkyl lactone esters or sulfidic esters are prepared by reacting an alkenylsuccinic anhydride with an alcohol or thiol in the presence of an acid-acting catalyst. The esters are useful as dispersants or detergents in aqueous or hydrocarbon systems or they may be further reacted with amines to produce other useful additives for such systems. Esters of monohydroxy alcohols or monothiols or polyhydroxy alcohols or polythiols may be prepared and used in this invention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.