Patents Assigned to Mearthane Products Corp.
  • Preparation of conductive polyurethanes using a conductive quasi-solution
    Publication number: 20010041783
    Abstract: A conductive quasi-solution useful for making a homogeneously conductive single-phase polyurethane, comprising a transition metal salt, a carrier solution, and a dispersing agent, wherein said conductive quasi-solution has a transition metal salt concentration between 10 and 30% by weight, and methods of making thermoset and thermoplastic polyurethane polymers therewith.
    Type: Application
    Filed: January 16, 2001
    Publication date: November 15, 2001
    Applicant: Mearthane Products Corp. Rhode Island corporation
    Inventors: Albert C. Chiang, John A. Roderick
  • Electrically conductive and semi-conductive polymers
    Patent number: 6063499
    Abstract: An electrically conductive or semi-conductive polymeric material including a metal salt dissolved in a polymer. The metal salt is completed with the polymer, which is what provides the material with its conductive properties. The materials have a resistivity of between 10.sup.5 and 10.sup.12 ohms-cm.
    Type: Grant
    Filed: July 24, 1997
    Date of Patent: May 16, 2000
    Assignee: Mearthane Products Corp.
    Inventors: Albert C. Chiang, John A. Roderick, George B. Martins, Marcelino A. Martins, Wen-Pin Chen
  • Preparation of conductive polyurethanes using a conductive quasi-solution
    Patent number: 5898057
    Abstract: A conductive quasi-solution useful for making a homogeneously conductive single-phase polyurethane, comprising a transition metal salt, a carrier solution, and a dispersing agent, wherein said conductive quasi-solution has a transition metal salt concentration between 10 and 30% by weight, and methods of making thermoset and thermoplastic polyurethane polymers therewith.
    Type: Grant
    Filed: May 27, 1997
    Date of Patent: April 27, 1999
    Assignee: Mearthane Products Corp.
    Inventors: Albert C. Chiang, John A. Roderick
  • Preparation of conductive polyurethanes using a conductive quasi-solution
    Patent number: 5639847
    Abstract: A conductive quasi-solution useful for making a homogeneously conductive single-phase polyurethane, comprising a transition metal salt, a carrier solution, and a dispersing agent, wherein said conductive quasi-solution has a transition metal salt concentration between 10 and 30% by weight, and methods of making thermoset and thermoplastic polyurethane polymers therewith.
    Type: Grant
    Filed: May 25, 1995
    Date of Patent: June 17, 1997
    Assignee: Mearthane Products Corp.
    Inventors: Albert C. Chiang, John A. Roderick