Patents by Inventor Jerry C. Chao

Jerry C. Chao 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).

  • Ester plasticizers for polyarethane compositions
    Patent number: 4666968
    Abstract: A plasticized polyurethane gel system comprising the reaction product of an isocyanate compound and a polyol in the presence of a plasticizer compound having a total solubility parameter of between about 8.3 and 8.9 or between about 9.1 and 9.7.
    Type: Grant
    Filed: March 3, 1986
    Date of Patent: May 19, 1987
    Assignee: CasChem, Inc.
    Inventors: William J. Downey, Melvin Brauer, Jerry C. Chao
  • Grease compatible extended polyurethanes
    Patent number: 4596743
    Abstract: A grease compatible cyclic olefin extended polyurethane comprising the reaction product of an isocyanate terminated polyisocyanate with a polyol in the presence of a cyclic olefin extender and, a plasticizer having a total solubility parameter of between about 8.3 and 8.9 or about 9.1 and 9.7. Certain extended polyurethanes are characterized as being reenterable, such that they can be used for repairing, encapsulation or reclaiming electrical or telephone cables. Alternate formulations can be used as hard volume encapsulants for general elastomer use.
    Type: Grant
    Filed: March 19, 1985
    Date of Patent: June 24, 1986
    Assignee: CasChem, Inc.
    Inventors: Melvin Brauer, William J. Downey, Frank C. Naughton, Jerry C. Chao
  • Process for using ester plasticized polyurethanes for sealing electrical devices
    Patent number: RE33354
    Abstract: A plasticized polyurethane gel system comprising the reaction product of an isocyanate compound and a polyol in the presence of an ester plasticizer compound having a total solubility parameter of .[.between about 8.3 and 8.9 or.]. between about 9.1 and .[.9.7.]. .Iadd.10.1. .Iaddend.Said polyurethane systems are cured, cross-linked, non-spewing, grease compatible, and reenterable. This extended polyurethane is further characterized as having superior insulating properties so that it can be used of repairing, encapsulating or reclaiming electrical or telecommunication cables as well as for hard volume encapsulants or general elastomer use.
    Type: Grant
    Filed: October 30, 1989
    Date of Patent: September 25, 1990
    Assignee: CasChem, Inc.
    Inventors: William J. Downey, Melvin Brauer, Jerry C. Chao
  • Grease compatible extended polyurethanes
    Patent number: RE33754
    Abstract: A grease compatible cyclic olefin extended polyurethane comprising the reaction product of an isocyanate terminated polyisocyanate with a polyol in the presence of a cyclic olefin extender and, a plasticizer having a total solubility parameter of .[.between about 8.3 and 8.9 or.]. about 9.1 and 9.7. Certain extended polyurethanes are characterized as being reenterable, such that they can be used for repairing, encapsulation or reclaiming electrical or telephone cables. Alternate formulations can be used as hard volume encapsulants for general elastomer use.
    Type: Grant
    Filed: April 20, 1990
    Date of Patent: November 26, 1991
    Assignee: CasChem, Inc.
    Inventors: Melvin Brauer, William J. Downey, Frank C. Naughton, Jerry C. Chao
  • Ester plasticizers for polyurethane compositions
    Patent number: RE33755
    Abstract: A plasticized polyurethane gel system comprising the reaction product of an isocyanate compound and a polyol in the presence of a plasticizer compound having a total solubility parameter of .[.between about 8.3 and 8.9 or.]. between about 9.1 and 9.7.
    Type: Grant
    Filed: October 30, 1989
    Date of Patent: November 26, 1991
    Assignee: CasChem, Inc.
    Inventors: William J. Downey, Melvin Brauer, Jerry C. Chao