Patents by Inventor Nhu Hung Phung

Nhu Hung Phung 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).

  • Catalyst composition and its use for oligomerizing olefins
    Patent number: 4283305
    Abstract: Catalyst composition for oligomerizing olefins, obtained by contacting (a) a bivalent nickel compound with (b) a hydrocarbylaluminum compound of the formula AIRCl.sub.2 where R is a monovalent hydrocarbon radical, and (c) a Bronsted acid consisting preferably of a halogenocarboxylic acid of the formula R.sub.1 COOH in which R.sub.1 is a halogenoalkyl radical of the formula C.sub.m H.sub.p X.sub.q, X being halogen, m an integer from 1 to 3, p being zero or an integer and q being an integer, the condition p+q=2m+1 being fulfilled. A preferred Bronsted acid is of the formula R.sub.2 COOH in which R.sub.2 is a halogenomethyl group of the formula CX.sub.n H.sub.3-n, X being halogen and n an integer from 1 to 3.
    Type: Grant
    Filed: December 11, 1979
    Date of Patent: August 11, 1981
    Assignee: Institut Francais du Petrole
    Inventors: Yves Chauvin, Dominique Commereuc, Jean Gaillard, Gerard Leger, Nhu Hung Phung