Patents by Inventor Choung H. Lai

Choung H. Lai 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).

  • Blend composition, flexible tubing material and method of making the blend
    Patent number: 9416267
    Abstract: A composition includes a blend of (a) a multi-block copolymer including at least one block of an elastomeric polymer and at least one block of a first polymer including a chiral polymer having a stereo isomeric configuration; and (b) a second polymer including an anti-chiral polymer corresponding to the chiral polymer in (a), wherein the second polymer includes an opposite handed stereo isomeric configuration to the chiral polymer in (a); wherein the blend of the chiral polymer and the anti-chiral polymer form stereo complex sites. A flexible tubing material further includes the blend. In an embodiment, a method of making the blend material is also provided.
    Type: Grant
    Filed: April 25, 2012
    Date of Patent: August 16, 2016
    Assignees: SAINT-GOBAIN PERFORMANCE PLASTICS CORPORATION, UNIVERSITY OF MASSACHUSETTS
    Inventors: Shaw Ling Hsu, Sahas Rathi, Edward Coughlin, Xiaolang Chen, Charles S. Golub, Michael J. Tzivanis, Michael A. Zimmerman, Nicholas Orf, Choung H. Lai
  • COATING MATERIALS AND LOW HAZE HEAT REJECTION COMPOSITES
    Publication number: 20150175837
    Abstract: A coating material includes a binder system and particles dispersed in the binder system. A composite includes a substrate and a coating layer comprising a binder system and particles dispersed in the binder system. A method for manufacturing a coating material, or a composite having a coating layer, includes providing a binder system and dispersing particles in the binder system.
    Type: Application
    Filed: December 16, 2014
    Publication date: June 25, 2015
    Inventors: Blair K. Brettmann, Aziz Mahfoud Familia, Choung H. Lai, Robrecht Moerkerke, Mithun Kamath
  • BLEND COMPOSITION, FLEXIBLE TUBING MATERIAL AND METHOD OF MAKING THE BLEND
    Publication number: 20120270979
    Abstract: A composition includes a blend of (a) a multi-block copolymer including at least one block of an elastomeric polymer and at least one block of a first polymer including a chiral polymer having a stereo isomeric configuration; and (b) a second polymer including an anti-chiral polymer corresponding to the chiral polymer in (a), wherein the second polymer includes an opposite handed stereo isomeric configuration to the chiral polymer in (a); wherein the blend of the chiral polymer and the anti-chiral polymer form stereo complex sites. A flexible tubing material further includes the blend. In an embodiment, a method of making the blend material is also provided.
    Type: Application
    Filed: April 25, 2012
    Publication date: October 25, 2012
    Applicants: UNIVERSITY OF MASSACHUSETTS, SAINT-GOBAIN PERFORMANCE PLASTICS CORPORATION
    Inventors: Shaw Ling Hsu, Sahas Rathi, Edward Bryan Coughlin, Xiaolang Chen, Charles S. Golub, Michael J. Tzivanis, Michael A. Zimmerman, Nicholas Orf, Choung H. Lai
  • Aromatic polyester melt strength improver
    Patent number: 5310799
    Abstract: Melt strengths and melt viscosities of aromatic polyesters are increased substantially by the addition of small amounts of certain high molecular weight vinyl aromatic modifiers which disperse very readily in aromatic polyesters.
    Type: Grant
    Filed: September 17, 1993
    Date of Patent: May 10, 1994
    Assignee: Rohm and Haas Company
    Inventors: William G. Carson, Choung H. Lai, Nazir A. Memon
  • Aromatic polyester melt strength improver
    Patent number: 5268438
    Abstract: Melt strengths and melt viscosities of aromatic polyesters are increased substantially by the addition of small amounts of certain high molecular weight vinyl aromatic modifiers which disperse very readily in aromatic polyesters.
    Type: Grant
    Filed: September 6, 1991
    Date of Patent: December 7, 1993
    Assignee: Rohm and Haas Company
    Inventors: William G. Carson, Choung H. Lai, Nazir A. Memon