Patents by Inventor Gary M. Conroy

Gary M. Conroy 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).

  • Patent number: 6846861
    Abstract: A pleasant fragrance is imparted to the stabilizatiin of a halogen-containing polymer by the use of an organotin mercaptoalkyl heptanoate, and, optionally, up to about 50%, on an equivalents basis, of a sulfide thereof as the stabilizer. A mixture of the heptanoate with up to about 80% by weight of the mixture of a second carboxylate having from 8 to 20 carbon atoms in the carboxylate moiety may be used in place of the heptanoate.
    Type: Grant
    Filed: September 29, 2001
    Date of Patent: January 25, 2005
    Assignee: Rohm and Haas Company
    Inventors: Bruce C. Herzig, Gary M. Conroy, Paul B. Adams, Michael E. Skladani, Gene K. Norris
  • Publication number: 20020035179
    Abstract: A pleasant fance is imparted to the stabiliztim of a halogencontamng polymer by the use of an organotin mercaptoalkyl heptanoate, and, optionally, up to about 50%, on an equivalents basis, of a sulfide thereof as the stabilizer. A mitre of the heptanoate with up to about 80% by weight of the mire of a second carboxylate having from 8 to 20 carbon atoms in the carboxylate moiety may be used in place of the heptanoate.
    Type: Application
    Filed: September 29, 2001
    Publication date: March 21, 2002
    Applicant: Morton International, Inc.
    Inventors: Bruce C. Herzig, Gary M. Conroy, Paul B. Adams, Michael E. Skladani, Gene K. Norris
  • Patent number: 6258880
    Abstract: Stabilizer compositions useful for protecting clear polyvinyl chloride and other clear halogenated polymer compositions against discoloration and degradation caused by exposure to light and weathering in addition to heat comprising an organotin compound selected from the group consisting of organotin mercaptides, sulfides of organotin mercaptides, organotin sulfides, and/or organotin carboxylates, and a free phenyl salicylate compound. These stabilizers offer improved ultraviolet light stability and weatherability to clear polyvinyl chloride resins designed for weatherable applications without detracting from the desired thermal performance. Clear polyvinyl chloride resin and other clear halogenated polymer compositions are also provided, containing these compounds.
    Type: Grant
    Filed: November 25, 1998
    Date of Patent: July 10, 2001
    Assignee: Morton International, Inc.
    Inventors: Gary M. Conroy, Gene K. Norris
  • Patent number: 6232380
    Abstract: Stabilizer compositions useful for protecting clear polyvinyl chloride and other clear halogen-containing polymer compositions used in the manufacture of exterior weatherable products against discoloration and degradation caused by exposure to ultraviolet light and weathering in addition to heat comprising a latent mercaptan which degrades during processing of the composition at an elevated temperature to liberate a free mercaptan, in combination with a synergistic amount of a free phenyl salicylate compound. The latent mercaptan may be the sole heat stabilizer additive in the stabilizer composition, but the free mercaptan released during processing may also synergize the activity of organic-based or metal-based heat stabilizers such as metal salts and organometallic stabilizers such as organotin carboxylates and organotin mercaptides in the polymer composition.
    Type: Grant
    Filed: November 25, 1998
    Date of Patent: May 15, 2001
    Assignee: Morton International Inc.
    Inventors: Gary M. Conroy, Gene K. Norris, Tod C. Duvall
  • Patent number: 5532303
    Abstract: The presence of ammonium halide in a PVC composition along with conventional primary heat stabilizers enhances the heat stability during the early stages of extrusion into pipe and other articles of manufacture. The ammonium halide which is formed as a by-product of the reaction of a metal halide such as zinc chloride or an organotin chloride with a mercaptoester in the presence of ammonia or an amine may be left in the product or a separate source of the ammonium halide may be used to provide the enhanced heat stability.
    Type: Grant
    Filed: April 27, 1995
    Date of Patent: July 2, 1996
    Assignee: Morton International, Inc.
    Inventors: George F. Beekman, Gary M. Conroy, Jeffrey R. Hyde, Gene K. Norris
  • Patent number: 5444111
    Abstract: The presence of ammonium halide in a PVC composition along with conventional primary heat stabilizers enhances the heat stability during the early stages of extrusion into pipe and other articles of manufacture. The ammonium halide which is formed as a by-product of the reaction of a metal halide such as zinc chloride or an organotin chloride with a mercaptoester in the presence of ammonia or an amine may be left in the product or a separate source of the ammonium halide may be used to provide the enhanced heat stability.
    Type: Grant
    Filed: June 6, 1994
    Date of Patent: August 22, 1995
    Assignee: Morton International, Inc.
    Inventors: George F. Beekman, Gary M. Conroy, Jeffrey R. Hyde, Gene K. Norris
  • Patent number: 4839409
    Abstract: Compositions for stabilizing rigid (unplasticized) halogen-containing organic polymers against the deteriorative effects of heat, ultra-violet light and weathering comprise organotin or non-tin metal salt primary heat stabilizers in combination with esters of polyhydrocarbyl ether glycols.
    Type: Grant
    Filed: September 17, 1987
    Date of Patent: June 13, 1989
    Assignee: Morton Thiokol, Inc.
    Inventor: Gary M. Conroy
  • Patent number: 4711920
    Abstract: Compositions for stabilizing halogen-containing organic polymers against the deteriorative effects of heat, light and weathering and which are non-irritating to eyes and mucous membranes, comprise the reaction product produced by combining an organotin oxide, an ethylenically unsaturated dicarboxylic acid ester and a mercaptan, wherein the chemical equivalence of the mercaptan is less than the chemical equivalence of the diorganotin oxide and the chemical equivalence of the diorganotin oxide is less than the chemical equivalence of the ester compound.
    Type: Grant
    Filed: July 23, 1986
    Date of Patent: December 8, 1987
    Assignee: Morton Thiokol, Inc.
    Inventors: Thomas G. Kugele, Keith A. Mesch, Karl R. Wursthorn, Gary M. Conroy
  • Patent number: 4696754
    Abstract: Compositions comprising a combination of a dihydrocarbyl ester of maleic acid and a metal salt of a monohydrocarbyl ester of maleic acid are useful as lubricant-stabilizers for halogen-containing organic polymers and provide unique lubricating-stabilizing characteristics to polymers stabilized therewith.
    Type: Grant
    Filed: August 11, 1986
    Date of Patent: September 29, 1987
    Assignee: Morton Thiokol, Inc.
    Inventors: Gary M. Conroy, Karl R. Wursthorn
  • Patent number: 4681907
    Abstract: Compositions comprising an organotin mercaptide, organotin sulfide, organotin carboxylate or mixtures thereof and a diester of an ethylenically unsaturated dicarboxylic acid having one carboxyl group on each carbon atom of the ethenylene group are useful for stabilizing halogen-containing organic polymers against the deteriorative effects of heat, light and weathering.
    Type: Grant
    Filed: September 20, 1985
    Date of Patent: July 21, 1987
    Assignee: Morton Thiokol, Inc.
    Inventors: Keith A. Mesch, Gary M. Conroy
  • Patent number: 4593059
    Abstract: Compositions comprising an organotin mercaptide, organotin sulfide or mixtures thereof; a diester of an ethylenically unsaturated dicarboxylic acid having one carboxyl group on each carbon atom of the ethenylene group; and, optionally, an organotin carboxylate are useful for stabilizing halogen-containing organic polymers against the deteriorative effects of heat, light and weathering.
    Type: Grant
    Filed: November 20, 1984
    Date of Patent: June 3, 1986
    Assignee: Morton Thiokol, Inc.
    Inventors: Keith A. Mesch, Gary M. Conroy