Method of preparing phosphonium compound for cyclic olefin polymerization
US7638653B2 · kind B2 · utility
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Key dates
| Filing date | Jul 25, 2006 |
| Grant date | Dec 29, 2009 |
| Priority date | — |
| Expiry date | Oct 17, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F9/5407
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Provided is a method of preparing a phosphonium compound by reacting a protic phosphonium compound represented by [(R1)—P(R2)a(R2′)b]HX and a salt compound represented by [C][Ani]. Therefore, a phosphonium compound used as a cocatalyst for the preparation of a polar cyclic olefin polymer can be produced at high yield.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.