Polymeric flow improver additives
US5721201A · kind A · utility
11Cited by
3References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 18, 1996 |
| Grant date | Feb 24, 1998 |
| Priority date | — |
| Expiry date | Nov 18, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2030/02
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention provides a copolymer of at least one n-(C.sub.8 -C.sub.30 -alkyl) (meth)acrylate with maleic anhydride, which contains alternating (meth)acrylate and maleic anhydride monomeric units, characterized in that the copolymer has a degree of alternation of at least 85%, a process for preparing the copolymer, a hydrocarbon oil composition containing the copolymer and the use of the copolymer as a flow improver additive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.