Patents by Inventor Pieter J. Reuvers

Pieter J. Reuvers has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Purification of tri-alkyl compounds of Group 3a metals
    Patent number: 5288885
    Abstract: A tri-alkyl compound of a Group 3a metal is purified by a process in which a polyether of the formula ##STR1## wherein R independently is alkyl of 1 to 4 carbon atoms inclusive, each R' independently is hydrogen, methyl or ethyl; m is an integer from 1 to 6 inclusive; and n is an integer from 1 to 12 inclusive, is added to a composition comprising a tri-alkyl compound and the polyether. The adduct is heated to dissociate the adduct thermally into a mixture containing tri-alkyl compound of the Group 3a metal, and the mixture is subjected to distillation to recover the tri-alkyl compound of the Group 3a metal.
    Type: Grant
    Filed: November 5, 1992
    Date of Patent: February 22, 1994
    Assignee: Shell Research Limited
    Inventors: Cornelis J. Smit, Gerbrand J. M. Van Eijden, Theodorus P. J. Peters, Pieter J. Reuvers