Patent · US Expired

Olefin metathesis reactions in carbon dioxide medium

US5840820A · kind A · utility

16Cited by
21References
20Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 6, 1995
Grant dateNov 24, 1998
Priority date
Expiry dateJun 6, 2015

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02P20/54
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

The present invention provides a process for olefin metathesis. The process comprises (a) providing a reaction mixture comprising an olefin, a metathesis initiator, and a reaction medium comprising carbon dioxide, and (b) reacting the reaction mixture to provide a metathesis modified olefin. The olefin metathesis reaction may be an olefin metathesis exchange reaction, an olefin metathesis degradation reaction, or a metathesis polymerization reaction. The carbon dioxide medium may be liquid, supercritical, and gaseous carbon dioxide.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.