High molecular weight, homogeneous, branched copolymers of maleic anhydride and alkyl vinyl ether monomers
US6252026A · kind A · utility
0Cited by
3References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 6, 2000 |
| Grant date | Jun 26, 2001 |
| Priority date | — |
| Expiry date | Dec 6, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F222/06
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
What is described is a high molecular weight homogeneous, branched copolymer of maleic anhydride and a C.sub.1 -C.sub.5 alkyl vinyl ether monomer, in which a branching agent is present in an amount of less than 0.5 wt. % of the polymer. A solution process of making such polymer also is described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.