Patents by Inventor Rhutesh K. Shah

Rhutesh K. Shah 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).

  • Patent number: 9745327
    Abstract: Bis phenolate transition metal complexes are disclosed for use in alkene polymerization, with optional chain transfer agent, to produce polyolefins.
    Type: Grant
    Filed: February 23, 2016
    Date of Patent: August 29, 2017
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Crisita Carmen H. Atienza, David A. Cano, John R. Hagadorn, Rhutesh K. Shah
  • Publication number: 20170233513
    Abstract: A propylene-ethylene-diene terpolymer and method of making such comprising from 2% to 25% wt % by weight of ethylene, from 98% to 75% wt % by weight propylene and from 1% to 21% wt % by weight of a diene, wherein the terpolymer has a crystallinity of less than 3%, a melt flow rate (MFR) of less than 10 and a Tg by DSC of from ?2° C. to ?25° C. and methods to prepare the terpolymer are depicted.
    Type: Application
    Filed: August 31, 2015
    Publication date: August 17, 2017
    Applicant: ExxonMobil Chemical Patents Inc.
    Inventors: Andy H. Tsou, Edward J. Blok, Gabor Kiss, Rhutesh K. Shah
  • Publication number: 20160280722
    Abstract: Bis phenolate transition metal complexes are disclosed for use in alkene polymerization, with optional chain transfer agent, to produce polyolefins.
    Type: Application
    Filed: February 23, 2016
    Publication date: September 29, 2016
    Inventors: Crisita Carmen H. Atienza, David A. Cano, John R. Hagadorn, Rhutesh K. Shah
  • Patent number: 6194526
    Abstract: A process to produce a polymer is provided. The process comprises polymerizing monomers wherein the monomers comprise ethylene, 1-butene, and 1-hexene. The total amount of 1-butene and 1-hexene in the polymer is less than 10 mole percent of the polymer, and the mole ratio of 1-butene to 1-hexene is in a range of 4:1 to 9:1. The polymerizing is conducted in a loop reactor under slurry polymerization conditions with a diluent that comprises isobutane, where the isobutane is a majority of the diluent by weight. A catalyst that comprises titanium, magnesium, and halide and a cocatalyst that comprises organoaluminum are utilized. The polymerizing is conducted at a temperature from 73° C. to 85° C. The polymer produced has a heterogeneity index (Mw/Mn) from about 3 to about 7, a density from about 0.915 to about 0.925 grams per cubic centimeter, a melt index from about 0.25 to about 3.5 grams per ten minutes, and a shear ratio from about 24 to about 30.
    Type: Grant
    Filed: July 7, 1998
    Date of Patent: February 27, 2001
    Assignee: Phillips Petroleum Company
    Inventors: Elizabeth A. Benham, Rhutesh K. Shah, Ashish M. Sukhadia, Joel L. Martin, Max P. McDaniel