Patents by Inventor Paul Brian Adams

Paul Brian Adams 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).

  • Organic based thermal stabilizers and heat stabilized polymer compositions
    Patent number: 7112622
    Abstract: The present invention encompasses a novel organic based composition which includes at least one organic based heat stabilizer component, and at least one stabilizer modifying component selected from the group of liquid calcium soap and 1,3,5-tris (2-hydroxyethyl) cyanuric acid. The invention also encompasses heat stabilized polymer compositions made with the novel organic based composition disclosed herein.
    Type: Grant
    Filed: March 3, 2003
    Date of Patent: September 26, 2006
    Assignee: Rohm and Haas Company
    Inventors: Paul Brian Adams, Tod Charles Duvall, Gene Kelly Norris
  • Latent mercaptans as stabilizers for halogen-containing polymer compositions
    Patent number: 7105109
    Abstract: Compositions useful as heat stabilizers comprising at least one latent mercaptan-containing compound and at least one zinc compound are provided. Halogen-containing polymer compositions comprising such heat stabilizers are also provided.
    Type: Grant
    Filed: August 26, 2003
    Date of Patent: September 12, 2006
    Assignee: Rohm and Haas Company
    Inventors: Paul Brian Adams, Gene K. Norris, Tod C. Duvall
  • Stabilized halogen-containing polymer composition
    Patent number: 6897254
    Abstract: Halogen-containing polymer compositions containing a heat stabilizer comprising a latent mercaptan, a zinc salt, and a free mercaptan as a separate entity are protected during processing by the degradation products of the latent (i.e., blocked) mercaptan. A free mercaptan is among those products. The separate free mercaptan (i.e., an alien free mercaptan) enhances the activity of the latent mercaptan in a synergistic manner.
    Type: Grant
    Filed: December 2, 2002
    Date of Patent: May 24, 2005
    Assignee: Rohm and Haas Company
    Inventors: Paul Brian Adams, Gene Kelly Norris
  • Thermal stabilizer compositions for halogen-containing vinyl polymers
    Publication number: 20040204522
    Abstract: Synergistic stabilizer compositions are employed to stabilize halogen-containing vinyl polymers from, for example, degradation and discoloration.
    Type: Application
    Filed: March 15, 2004
    Publication date: October 14, 2004
    Inventors: Steven Christopher Austen, Paul Brian Adams, Gary Martin Conroy, Gene Kelly Norris
  • Latent mercaptans as stabilizers for halogen-containing polymer compositions
    Publication number: 20040143044
    Abstract: Compositions useful as heat stabilizers comprising at least one latent mercaptan-containing compound and at least one zinc compound are provided. Halogen-containing polymer compositions comprising such heat stabilizers are also provided.
    Type: Application
    Filed: August 26, 2003
    Publication date: July 22, 2004
    Inventors: Paul Brian Adams, Gene K. Norris, Tod C. Duvall
  • Organic based thermal stabilizers and heat stabilized polymer compositions
    Publication number: 20030227006
    Abstract: The present invention encompasses a novel organic based composition which includes at least one organic based heat stabilizer component, and at least one stabilizer modifying component selected from the group of liquid calcium soap and 1,3,5-tris (2-hydroxyethyl) cyanuric acid. The invention also encompasses heat stabilized polymer compositions made with the novel organic based composition disclosed herein.
    Type: Application
    Filed: March 3, 2003
    Publication date: December 11, 2003
    Inventors: Paul Brian Adams, Tod Charles Duvall, Gene Kelly Norris
  • Stabilized halogen-containing polymer composition
    Publication number: 20030158311
    Abstract: Halogen-containing polymer compositions containing a heat stabilizer comprising a latent mercaptan, a zinc salt, and a free mercaptan as a separate entity are protected during processing by the degradation products of the latent (i.e., blocked) mercaptan. A free mercaptan is among those products. The separate free mercaptan (i.e., an alien free mercaptan) enhances the activity of the latent mercaptan in a synergistic manner.
    Type: Application
    Filed: December 2, 2002
    Publication date: August 21, 2003
    Inventors: Paul Brian Adams, Gene Kelly Norris