Patents by Inventor Hari Katepalli

Hari Katepalli 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).

  • PROCESS FOR REMOVAL OF CONTAMINANTS FROM CONTAMINATED THERMOPLASTIC
    Publication number: 20230272180
    Abstract: A method for reducing an amount of a contaminant in a thermoplastic polymer comprising shearing a combination comprising a contaminated thermoplastic polymer in melt form, water, and a dispersing agent where the shearing causes a portion of the contaminant to be removed from the contaminated thermoplastic polymer (e.g. moved into an aqueous phase with the water or into another separate phase from the water and the polymer), and after shearing, separating the thermoplastic from the aqueous phase to recover thermoplastic polymer.
    Type: Application
    Filed: July 6, 2021
    Publication date: August 31, 2023
    Inventors: Craig F. GORIN, David L. MALOTKY, Daniel L. DERMODY, Christopher J. TUCKER, Jin WANG, Anurima SINGH, Jill M. MARTIN, Thomas TOMCZAK, Hari KATEPALLI
  • Aqueous ionomeric dispersions, and methods thereof
    Patent number: 11708501
    Abstract: An aqueous ionomer dispersion, and method of manufacturing thereof, comprising an ionomer composition and water, wherein the ionomer composition comprises: a) at least 20 wt. %, based on the total weight percent of the ionomer composition, of an ionomer; and b) up to 80 wt. %, based on the total weight percent of the ionomer composition, of a polyolefin.
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: July 25, 2023
    Assignee: Dow Global Technologies LLC
    Inventors: Robert S. Moglia, Stacey A. Saba, Hari Katepalli, Matthew J. Crimmins, Jessica Ye Huang, James Richard De Garavilla, Richard Tien Hua Chou, Barry Alan Morris, Daniel L. Dermody, Kyle Anderson
  • PAPER COATED WITH A FUNCTIONAL POLYOLEFIN FILM
    Publication number: 20230151549
    Abstract: The present invention relates to an article and a method for its preparation; the article comprises a cured polymeric film superposing paper or paperboard. The polymeric film is derived from a dispersion which comprises: a) a dispersant which is a copolymer with an acid value of 130 or less, comprising structural units of ethylene and a carboxylic acid monomer, wherein the copolymer has a melt flow index in the range of from 50 to 2000 g/10 min at 190° C./2.16 kg; wherein the weight-to-weight ratio of structural units of ethylene to carboxylic acid monomer is in the range of from 95:5 to 70:30; and wherein the dispersant has a concentration in the range of from 9 to 50 weight percent based on the weight of polymer solids in the dispersion; b) a base polymer comprising non-functionalized ethylene-co-alkene copolymers, wherein the weight-to-weight ratio of the structural units of ethylene to alkene is in the range of from 99.8:0.
    Type: Application
    Filed: April 15, 2021
    Publication date: May 18, 2023
    Inventors: Alan M. Piwowar, Ray E. Drumright, Christina N. Ellison, David L. Malotky, Jonathan F. Mason, Hari Katepalli, Luqing Qi, Houxiang Tang, Robert R. Bills
  • Flexible polyurethane foam having prolonged recovery time
    Patent number: 11518842
    Abstract: Recovery times and/or airflow of flexible polyurethane foam is increased by including certain tackifiers in the foam formulation. The tackifiers are formed into an emulsion that includes a polyether containing oxyethylene groups, a nonionic surfactant and certain fumed silica, carbon black or talc particles.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: December 6, 2022
    Assignee: Dow Global Technologies LLC
    Inventors: Kaoru Aou, Qinghao Meng, Daniel L. Dermody, Hari Katepalli, William J. Harris, An Kaga, Kathleen Barnes, Colin Li Pi Shan
  • AQUEOUS IONOMERIC DISPERSIONS, AND METHODS THEREOF
    Publication number: 20220119630
    Abstract: An aqueous ionomer dispersion, and method of manufacturing thereof, comprising an ionomer composition and water, wherein the ionomer composition comprises: a) at least 20 wt. %, based on the total weight percent of the ionomer composition, of an ionomer; and b) up to 80 wt. %, based on the total weight percent of the ionomer composition, of a polyolefin.
    Type: Application
    Filed: December 17, 2019
    Publication date: April 21, 2022
    Inventors: Robert S. Moglia, Stacey A. Saba, Hari Katepalli, Matthew J. Crimmins, Jessica Ye Huang, James Richard De Garavilla, Richard Tien Hua Chou, Barry Alan Morris
  • AQUEOUS IONOMERIC DISPERSIONS, AND METHODS THEREOF
    Publication number: 20210395540
    Abstract: An aqueous ionomer dispersion, and method of manufacturing thereof, comprising an ionomer composition and water, wherein the ionomer composition comprises: a) at least 20 wt. %, based on the total weight percent of the ionomer composition, of an ionomer; and b) up to 80 wt. %, based on the total weight percent of the ionomer composition, of a polyolefin.
    Type: Application
    Filed: December 17, 2019
    Publication date: December 23, 2021
    Inventors: Robert S. Moglia, Stacey A. Saba, Hari Katepalli, Matthew J. Crimmins, Jessica Ye Huang, James Richard De Garavilla, Richard Tien Hua Chou, Barry Alan Morris, Daniel L. Dermody, Kyle Anderson
  • FLEXIBLE POLYURETHANE FOAM HAVING PROLONGED RECOVERY TIME
    Publication number: 20210009747
    Abstract: Recovery times and/or airflow of flexible polyurethane foam is increased by including certain tackifiers in the foam formulation. The tackifiers are formed into an emulsion that includes a polyether containing oxyethylene groups, a nonionic surfactant and certain fumed silica, carbon black or talc particles.
    Type: Application
    Filed: March 8, 2019
    Publication date: January 14, 2021
    Inventors: Kaoru Aou, Qinghao Meng, Daniel L. Dermody, Hari Katepalli, William J. Harris, An N. Kaga, Kathleen Barnes, Li Pi Shan