Dichromate oxidation of polybutadiene: formation of a hydroxylated polyalkyl homopolyer
US6031052A · kind A · utility
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2Claims
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Key dates
| Filing date | Aug 21, 1995 |
| Grant date | Feb 29, 2000 |
| Priority date | — |
| Expiry date | Aug 21, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08C19/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process of hydroxylation of polybutadiene using hydroxy terminated polybutadiene and reacting it with tetraethyl ammonium chloride, potassium dichromate and pyridine. The polymer product is subsequently washed with hydrochloric acid and water to produce a polybutadiene with both terminal and internal hydroxylation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.