Vinylidene dimer process

US4973788A · kind A · utility

Assignee

• Ethyl Corporation · US

Inventors

• Kaung-Far Lin · Baton Rouge, US
• Gunner E. Nelson · Baton Rouge, US
• Carroll W. Lanier · Baker, US

Key dates

• Filing date: May 5, 1989
• Grant date: Nov 27, 1990
• Expiry date: May 5, 2009

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C2531/14
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Vinyl-olefins are converted to vinylidene olefin dimers at a selectivity of at least 85 mole percent by reacting a mixture of dry vinyl-olefin containing 0.001-0.04 moles of trialkyl aluminum per mole of initial vinyl-olefin at a temperature in the range of about 100.degree.-140.degree. C. for a time sufficient to convert at least 80 mole percent of the initial vinyl-olefin to a different material.