Process for producing hydroxylated polybutadiene
US4883859A · kind A · utility
3Cited by
4References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 10, 1988 |
| Grant date | Nov 28, 1989 |
| Priority date | — |
| Expiry date | Jun 10, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F136/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
In the process of producing hydroxylated polybutadiene from a diene monomer in the presence of hydrogen peroxide and a solvent, wherein the solvent is recovered by distillation for reuse; after separation of the hydroxylated polybutadiene from mixture containing such solvent and reaction impurities, the improvement comprising subjecting said mixture to the action of an alkali metal hydroxide or a hydrazine prior to distillation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.