Patents by Inventor Ellen V. Nagy

Ellen V. Nagy 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).

  • Epoxy-functional polysiloxane modified phenolic resin compositions and composites
    Patent number: 6342303
    Abstract: The preparation of composites using epoxy-functional silicones as additives to phenolic resole resins.
    Type: Grant
    Filed: February 23, 2000
    Date of Patent: January 29, 2002
    Assignee: Georgia-Pacific Resins, Inc.
    Inventors: Pablo G. Dopico, Shahid P. Qureshi, Ellen V. Nagy
  • Lactone chain-extended phenolic polyester polyols
    Patent number: 6291077
    Abstract: A lactone chain-extended polyester polyol of the present invention comprises the reaction product of a lactone and a previously chain-extended phenolic-based hydroxyl compound. The previously chain-extended phenolic-based hydroxyl compound may comprise the reaction product of (i) a lactone or an alkoxylating agent selected from the group consisting of alkylene oxides and alkylene carbonates, and (ii) a phenolic aralkylation polymer comprising the reaction product of a phenolic monomer having at least two free reactive positions; a styrene derivative; and a coupling agent. The previously chain-extended phenolic-based hydroxyl compound also may be chain-extended by reacting with a lactam to produce a lactam chain-extended polyester polyamide. The polyols and polyamides of the present invention provide unique combinations of hard and soft functionalities, which translates into materials exhibiting a unique combination of toughness and hardness.
    Type: Grant
    Filed: August 28, 2000
    Date of Patent: September 18, 2001
    Assignee: Georgia-Pacific Resins, Inc.
    Inventors: Rajan Hariharan, David A. Hutchings, Kenneth A. Bourlier, Ellen V. Nagy
  • Lactone chain-extended phenolic polyester polyols
    Patent number: 6166151
    Abstract: A lactone chain-extended polyester polyol of the present invention comprises the reaction product of a lactone and a previously chain-extended phenolic-based hydroxyl compound. The previously chain-extended phenolic-based hydroxyl compound may comprise the reaction product of (i) a lactone or an alkoxylating agent selected from the group consisting of alkylene oxides and alkylene carbonates, and (ii) a phenolic aralkylation polymer comprising the reaction product of a phenolic monomer having at least two free reactive positions; a styrene derivative; and a coupling agent. The previously chain-extended phenolic-based hydroxyl compound also may be chain-extended by reacting with a lactam to produce a lactam chain-extended polyester polyamide. The polyols and polyamides of the present invention provide unique combinations of hard and soft functionalities, which translates into materials exhibiting a unique combination of toughness and hardness.
    Type: Grant
    Filed: June 22, 1999
    Date of Patent: December 26, 2000
    Assignee: Georgia-Pacific Resins, Inc.
    Inventors: Rajan Hariharan, David A. Hutchings, Kenneth A. Bourlier, Ellen V. Nagy
  • Preparation of phenolic polymers by aralkylation reactions
    Patent number: 5756655
    Abstract: The present invention is directed to a method for preparing phenol aralkylation polymers by reaction among a phenolic monomer, a styrenic monomer and an aryl diolefin, characterized by the absence of a solvent, wherein a phenolic monomer is initially aralkylated in the presence of an acid catalyst with a first portion of at least one styrenic monomer to obtain an aralkylated phenol, the aralkylated phenol is reacted with an aryl diolefin to obtain a phenol aralkylation polymer, and then optionally, (though preferably) the phenol aralkylation polymer is further aralkylated with a second portion of at least one styrenic monomer.
    Type: Grant
    Filed: January 10, 1997
    Date of Patent: May 26, 1998
    Assignee: Georgia-Pacific Resins, Inc.
    Inventors: Edward Lucas, Jr., Alan K. Randall, David A. Hutchings, David Valdez, Ellen V. Nagy