Patents by Inventor John C. Lamont

John C. Lamont 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 the production of water-absorbing compositions
    Publication number: 20020086956
    Abstract: A process for producing a copolymer of an &agr;,&bgr;-unsaturated monomer having at least one pendant unit selected from a carboxylic acid group and derivatives thereof, and a copolymerizable monomer is described in which the process is carried out in a single solvent which is particularly an aromatic solvent. Processes of controlling the reaction and the particle size of the polymer produced are also described.
    Type: Application
    Filed: November 9, 2001
    Publication date: July 4, 2002
    Inventors: Israel D. Fridman, John C. Lamont, Ervin Dan
  • Process for the production of water-absorbing compositions
    Patent number: 6316554
    Abstract: A process for producing a copolymer of an a, &bgr;-unsaturated monormer having at least one pendant unit selected from a carboxylic acid group and derivatives thereof, and a copolymersable monomer is described in which the process is carried out in a single solvent which is particularly an aromatic solvent. Processes of controlling the reaction and the particle size of the polymer produced are also described.
    Type: Grant
    Filed: September 28, 1998
    Date of Patent: November 13, 2001
    Assignee: Camelot Superabsorbents Limited
    Inventors: Israel D. Fridman, John C. Lamont, Ervin Dan
  • Transparent toughened plastics
    Patent number: 5336719
    Abstract: Tough transparent thermoplastics blends may be prepared by blending 10 to 99 weight percent of a block copolymer; 0.1 to 1 weight percent of particulate rubber having a particle size from 0.1 to 10 microns; and the balance a clear glassy polymer. These clear polymers are useful in a number of application, particularly for those applications requiring quite high toughness and transparency such as packaging, containers or protective covering.
    Type: Grant
    Filed: April 26, 1993
    Date of Patent: August 9, 1994
    Assignee: Polysar Limited
    Inventors: Ronald J. Thompson, James Lunt, John C. Lamont, John C. Kwok
  • Transparent toughened thermoplastics
    Patent number: 5252664
    Abstract: Tough transparent thermoplastics blends may be prepared by blending 10 to 99 weight percent of a block copolymer; 0.1 to 1 weight percent of particulate rubber having a particle size from 0.1 to 10 microns; and the balance a clear glassy polymer. These clear polymers are useful in a number of applications, particularly for those applications requiring quite high toughness and transparency such as packaging, containers or protective covering.
    Type: Grant
    Filed: June 27, 1991
    Date of Patent: October 12, 1993
    Assignee: Polysar Limited
    Inventors: Ronald J. Thompson, James Lunt, John C. Lamont, John C. Kwok
  • Transparent toughened thermoplastics
    Patent number: 5079296
    Abstract: Tough transparent thermoplastics blends may be prepared by blending 10 to 99 weight percent of a block copolymer; 0.1 to 1 weight percent of particulate rubber having a particle size from 0.1 to 10 microns; and the balance a clear glassy polymer. These clear polymers are useful in a number of applications, particularly for those applications requiring quite high toughness and transparency such as packaging, containers or protective covering.
    Type: Grant
    Filed: July 21, 1989
    Date of Patent: January 7, 1992
    Assignee: Polysar Limited
    Inventors: Ronald J. Thompson, James Lunt, John C. Lamont, John C. Kwok