Patents by Inventor Raj Ranjan

Raj Ranjan 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).

  • Cast film component layer exhibiting an outstanding cling property
    Patent number: 11760851
    Abstract: A cast film, for use in monolayer and multilayer applications, having an outstanding inherent cling property is disclosed. Additionally, a multilayer cast film utilizing a cast film component layer prepared from a Ziegler-Natta catalyzed ethylene and alpha-olefin copolymer is disclosed, wherein the cast film component layer has a cling force of at least 200 grams-force per inch width at 200% pre-stretch, a slow puncture resistance of greater than 50 J/mm, and a TD tear strength of greater than 450 g/mil, with no cling additives present in the cast film component layer.
    Type: Grant
    Filed: June 30, 2014
    Date of Patent: September 19, 2023
    Assignee: Formosa Plastics Corporation, U.S.A.
    Inventors: Chih-Jian Chen, Honglan Lu, Guangxue Xu, Ming-Yung Lee, Raj Ranjan
  • Cast Film Component Layer Exhibiting an Outstanding Cling Property
    Publication number: 20150376354
    Abstract: A cast film, for use in monolayer and multilayer applications, having an outstanding inherent cling property is disclosed. Additionally, a multilayer cast film utilizing a cast film component layer prepared from a Ziegler-Natta catalyzed ethylene and alpha-olefin copolymer is disclosed, wherein the cast film component layer has a cling force of at least 200 grams-force per inch width at 200% pre-stretch, a slow puncture resistance of greater than 50 J/mm, and a TD tear strength of greater than 450 g/mil, with no cling additives present in the cast film component layer.
    Type: Application
    Filed: June 30, 2014
    Publication date: December 31, 2015
    Inventors: Chih-Jian Chen, Honglan Lu, Guangxue Xu, Ming-Yung Lee, Raj Ranjan
  • Melt rheometer control
    Patent number: 4573345
    Abstract: A method for measuring the viscosity of a foamable plastics melt where accurate readings are difficult because of the melt material beginning to foam while in the rheometer test section slit. The pressure on the melt is elevated above the foaming point and maintained at an elevated level during the entire time during which the melt sample is diverted through the rheometer.
    Type: Grant
    Filed: July 12, 1984
    Date of Patent: March 4, 1986
    Assignee: Mobil Oil Corporation
    Inventors: Charles M. Krutchen, Raj Ranjan, Jan-Chin Yang