Patents by Inventor Charles E. Mortimer

Charles E. Mortimer 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).

  • Azeotrope-like compositions of 1,1,1,3,3-pentafluoropropane and tetramethylsilane
    Patent number: 5854296
    Abstract: Azeotropic compositions made up of from about 60 to about 78% by weight of 1,1,1,3,3-pentafluoropropane and from about 22 to about 40% by weight of tetramethylsilane have been found to be particularly useful as blowing agents for the production of polyurethane foams.
    Type: Grant
    Filed: September 19, 1997
    Date of Patent: December 29, 1998
    Assignee: Bayer Corporation
    Inventors: Joachim Werner, Scott A. Kane, Charles E. Mortimer, Herman P. Doerge, Eric F. Boonstra
  • Azeotrope-like compositions of dimethoxymethane, cyclopentane and 2-methyl pentane and the use thereof in the production of foams
    Patent number: 5723509
    Abstract: Azeotropic compositions made up of from about 68.1 to about 69.1% by weight of dimethoxymethane, from about 29.7 to about 30.7% by weight of cyclopentane and from about 0.7 to about 1.7% by weight in which the sum of the weight percents of the components is 100% by weight. These azeotrope-like compositions are useful as blowing agents in the production of polyurethane foams.
    Type: Grant
    Filed: September 23, 1996
    Date of Patent: March 3, 1998
    Assignee: Bayer Corporation
    Inventors: Joachim Werner, Scott A. Kane, Herman P. Doerge, Eric F. Boonstra, Charles E. Mortimer
  • Azeotrope-like compositions of 1,1,1,3,3 pentafluoropropane and tetramethylsilane
    Patent number: 5716541
    Abstract: Azeotropic compositions made up of from about 60 to about 78% by weight of 1,1,1,3,3-pentafluoropropane and from about 22 to about 40% by weight of tetramethylsilane have been found to be particularly useful as blowing agents for the production of polyurethane foams.
    Type: Grant
    Filed: September 23, 1996
    Date of Patent: February 10, 1998
    Assignee: Bayer Corporation
    Inventors: Joachim Werner, Scott A. Kane, Charles E. Mortimer, Herman P. Doerge, Eric F. Boonstra
  • Foam-forming mixtures with decreased decomposition of hydrohalocarbon blowing agents
    Patent number: 5693686
    Abstract: A polyisocyanate having an acid value of at least 0.01% HCl is used to produce polyisocyanate, polyisocyanurate and polyurethane urea foams with an HCFC blowing agent. The use of such a polyisocyanate is advantageous because the polyisocyanate does not cause significant decomposition of the HCFC blowing agent.
    Type: Grant
    Filed: February 10, 1994
    Date of Patent: December 2, 1997
    Assignee: Bayer Corporation
    Inventors: John F. Szabat, Charles E. Mortimer, Joseph M. Sutej, Jeanne L. Beaumont, Steven L. Schilling, Harold R. Parsons, Robert P. Yeater
  • Azeotrope-like compositions of 1,1,1,3,3-pentafluoropropane and 2-methyl butane
    Patent number: 5562857
    Abstract: Azeotropic compositions made up of from about 65 to about 81% by weight of 1,1,1,3,3-pentafluoropropane and from about 19 to about 35% by weight of 2-methyl butane have been found to be particularly useful as blowing agents for the production of polyurethane foams.
    Type: Grant
    Filed: December 22, 1995
    Date of Patent: October 8, 1996
    Assignee: Bayer Corporation
    Inventors: Joachim Werner, Scott A. Kane, Charles E. Mortimer, Herman P. Doerge, Eric F. Boonstra
  • Azeotropes of 2-methylbutane and 1,1-dichloro-1-fluorethane and the use thereof in the production of rigid foams
    Patent number: 5106527
    Abstract: The present invention is directed to a novel azeotrope consisting essentially of from 25 to 35% by weight of 2-methylbutane and from 65 to 75% by weight of 1,1-dichloro-1-fluoroethane, and the use thereof in the production of rigid, closed cell foams.
    Type: Grant
    Filed: April 6, 1990
    Date of Patent: April 21, 1992
    Assignee: Mobay Corporation
    Inventors: Herman P. Doerge, Keith G. Spitler, Charles E. Mortimer
  • Novel azeotropes and the use thereof in the production of rigid foams
    Patent number: 5102920
    Abstract: The present invention is directed to a novel azeotrope consisting essentially of from 25 to 35% by weight of 2-methylbutane and from 65 to 75% by weight of 1,1-dichloro-1-fluorethane, and the use thereof in the production of rigid, closed cell foams.
    Type: Grant
    Filed: September 11, 1991
    Date of Patent: April 7, 1992
    Assignee: Mobay Corporation
    Inventors: Herman P. Doerge, Keith G. Spitler, Charles E. Mortimer