Catalyst and process for preparing oligomers of &agr;-methylstyrene
US6441260B1 · kind B1 · utility
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27Claims
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Key dates
| Filing date | Jun 1, 2000 |
| Grant date | Aug 27, 2002 |
| Priority date | — |
| Expiry date | Jun 1, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2531/02
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Low molecular weight &agr;-methylstyrene oligomers are obtained by oligomerizing &agr;-methylstyrene in the presence of a single component initiator complex containing a cation component and a weakly coordinating anion component. The initiator complex is non-corrosive and does not have to be neutralized or removed from the obtained product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.