Patents by Inventor Mark Ragsdale

Mark Ragsdale 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).

  • Publication number: 20230331947
    Abstract: An additive composition comprises a polyol and a zeolite composite. The zeolite composite comprises a zeolite substrate and a nitrogen-containing compound adsorbed within at least a portion of the pores in the surface of the zeolite substrate. The nitrogen-containing compound comprises (A) a first functional group comprising a carbon atom doubly bonded to a nitrogen atom and (B) a second functional group comprising a hydrogen atom covalently bonded to a nitrogen atom. A method for making a polyurethane polymer comprises the steps of providing a first polyol, providing an isocyanate compound, providing an additive composition as described above, combining the first polyol, the isocyanate compound, and the additive composition to produce a reaction mixture, and reacting the isocyanate compound with the first and second polyols to produce a polyurethane polymer.
    Type: Application
    Filed: April 17, 2023
    Publication date: October 19, 2023
    Inventors: Mark Ragsdale, Sharon Free, Chunping Xie, Sanjeev Dey
  • Patent number: 11725159
    Abstract: A lubricant composition comprises a lubricant and a stabilizer. The stabilizer comprises a first epoxide group and a second functional group selected from the group consisting of (i) a second epoxide group; (ii) an aliphatic carbon-carbon multiple bond conjugated with a second carbon-carbon multiple bond; (iii) an aliphatic carbon-carbon multiple bond conjugated with an electron withdrawing group; and (iv) an aliphatic carbon-carbon multiple bond conjugated with an aromatic group. A heat transfer composition comprises a lubricant composition as described above and a haloalkane, such as an iodoalkane (e.g., trifluoroiodomethane).
    Type: Grant
    Filed: January 18, 2022
    Date of Patent: August 15, 2023
    Inventors: Haihu Qin, Richard Lawson, Mark Ragsdale, Sanjeev Dey
  • Publication number: 20220243142
    Abstract: A lubricant composition comprises a lubricant and a stabilizer. The stabilizer comprises a first epoxide group and a second functional group selected from the group consisting of (i) a second epoxide group; (ii) an aliphatic carbon-carbon multiple bond conjugated with a second carbon-carbon multiple bond; (iii) an aliphatic carbon-carbon multiple bond conjugated with an electron withdrawing group; and (iv) an aliphatic carbon-carbon multiple bond conjugated with an aromatic group. A heat transfer composition comprises a lubricant composition as described above and a haloalkane, such as an iodoalkane (e.g., trifluoroiodomethane).
    Type: Application
    Filed: January 18, 2022
    Publication date: August 4, 2022
    Inventors: Haihu Qin, Richard Lawson, Mark Ragsdale, Sanjeev Dey
  • Patent number: 7094127
    Abstract: Surprisingly effective additive formulations for the reduction of highly undesirable yellowing or other discoloration of white, uncolored, polyurethane foam articles are provided. White polyurethane foam exhibits a susceptibility to yellowing and discoloration to a great extent, particularly in relatively short periods of time, than other types of polymeric articles. The inventive additives impart excellent low-discoloration properties over appreciable amounts of time of regular exposure to harmful elements, thereby according the pertinent industry a manner of providing white polyurethane foams for longer periods of time. Methods of producing such reliably white-colored polyurethane foams are also provided.
    Type: Grant
    Filed: March 1, 2004
    Date of Patent: August 22, 2006
    Assignee: Milliken & Company
    Inventors: Philip Radford, Mark Ragsdale
  • Publication number: 20050191941
    Abstract: Surprisingly effective additive formulations for the reduction of highly undesirable yellowing or other discoloration of white, uncolored, polyurethane foam articles are provided. White polyurethane foam exhibits a susceptibility to yellowing and discoloration to a great extent, particularly in relatively short periods of time, than other types of polymeric articles. The inventive additives impart excellent low-discoloration properties over appreciable amounts of time of regular exposure to harmful elements, thereby according the pertinent industry a manner of providing white polyurethane foams for longer periods of time. Methods of producing such reliably white-colored polyurethane foams are also provided.
    Type: Application
    Filed: March 1, 2004
    Publication date: September 1, 2005
    Inventors: Philip Radford, Mark Ragsdale
  • Publication number: 20050009938
    Abstract: Surprisingly effective additive formulations for the reduction of highly undesirable yellowing or other discoloration of white, uncolored, polyurethane foam articles are provided. White polyurethane foam exhibits a susceptibility to yellowing and discoloration to a great extent, particularly in relatively short periods of time, than other types of polymeric articles. The inventive additives impart excellent low-discoloration properties over appreciable amounts of time of regular exposure to harmful elements, thereby according the pertinent industry a manner of providing white polyurethane foams for longer periods of time. Methods of producing such reliably white-colored polyurethane foams are also provided.
    Type: Application
    Filed: July 8, 2003
    Publication date: January 13, 2005
    Inventors: Mark Ragsdale, Philip Radford