Patents by Inventor H. Dale Wilson, Jr.

H. Dale Wilson, Jr. 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).

  • High melt flow propylene polymer produced by gas-phase polymerization
    Patent number: 6057407
    Abstract: A process to produce high melt flow propylene polymer comprises polymerizing propylene in the presence of a titanium-containing, magnesium-containing, high activity catalyst and an aluminum alkyl cocatalyst in a gas phase system which uses condensed liquid to control temperature wherein the external catalyst modifier is a tetraalkylorthosilicate, preferably tetraethylorthosilicate, at process conditions of temperature, hydrogen concentration, and Si/Mg, Al/Mg and Al/Si atomic ratios, to produce a high melt flow propylene polymer at high yield.
    Type: Grant
    Filed: January 7, 1998
    Date of Patent: May 2, 2000
    Assignee: BP Amoco Corporation
    Inventors: Chi-Hung Lin, Dennis L. McGinn, Jerome A. Streeky, H. Dale Wilson, Jr., Kanokrot Ja Phalakornkul