Patents by Inventor Douglas F. Fry

Douglas F. Fry 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).

  • Water-dispersible, hydrophobic polyalkyleneimine polyamide fiberglass lubricant, process for producing the same, and method of use therefor
    Patent number: 7026435
    Abstract: Polymer derivatives based upon polyalkyleneimine backbones having from about 20% to about 60% of their reactive amino functionalities substituted by C14-20 carboxylic acids, are disclosed. Fiber lubricants and/or sizing compositions comprising such polymer derivatives are also disclosed. The disclosed fiber lubricants exhibit excellent affinity for fiberglass fibers and have excellent hydrophobicity, while also providing excellent lubrication. Methods for preparing said derivatives are also disclosed. Also disclosed are methods for treating fibers using the polymer derivatives.
    Type: Grant
    Filed: June 6, 2001
    Date of Patent: April 11, 2006
    Assignee: Cognis Corporation
    Inventors: Douglas F. Fry, Frank Norman Tuller
  • Hydrophilic polyurethanes, preparation thereof and fiber sizes containing the same
    Patent number: 6911237
    Abstract: Water-soluble polyurethanes prepared by reacting a polyisocyanate and a polyalkylene oxide polyol at a molar ratio sufficient to form an isocyanate-terminated polymer, and reacting the isocyanate-terminated polymer with an epoxy alcohol to form a water-soluble, epoxy-terminated polyurethane, are disclosed. Also disclosed are aqueous fiber sizing compositions including the water-soluble polyurethanes described.
    Type: Grant
    Filed: July 3, 2002
    Date of Patent: June 28, 2005
    Assignee: Cognis Corporation
    Inventor: Douglas F. Fry
  • Color-stable polyalkyleneimine derivatives, fiberglass lubricants containing the same and processes for producing the same
    Patent number: 6399741
    Abstract: Polymer derivatives based upon polyalkyleneimine backbones having a color stabilizing-effective amount of their reactive amino functionalities substituted by either a carboxylic acid or an amino-protecting group such as urea, are disclosed. Methods for preparing said derivatives are also disclosed. Fiber lubricant compositions comprising said polymer derivatives, and the resistance to yellowing associated with such lubricants are disclosed. Also disclosed are methods for treating fibers using the polymer derivatives.
    Type: Grant
    Filed: March 12, 2001
    Date of Patent: June 4, 2002
    Assignee: Cognis Corporation
    Inventors: Douglas F. Fry, Frank Norman Tuller
  • Color-stable polyalkyleneimine derivatives, fiberglass lubricants containing the same and processes for producing the same
    Publication number: 20020028910
    Abstract: Polymer derivatives based upon polyalkyleneimine backbones having a color stabilizing-effective amount of their reactive amino functionalities substituted by either a carboxylic acid or an amino-protecting group such as urea, are disclosed. Methods for preparing said derivatives are also disclosed. Fiber lubricant compositions comprising said polymer derivatives, and the resistance to yellowing associated with such lubricants are disclosed. Also disclosed are methods for treating fibers using the polymer derivatives.
    Type: Application
    Filed: March 12, 2001
    Publication date: March 7, 2002
    Inventors: Douglas F. Fry, Frank Norman Tuller
  • Water-dispersible, hydrophobic polyalkyleneimine polyamide fiberglass lubricant, process for producing the same, and method of use therefor
    Publication number: 20020017627
    Abstract: Polymer derivatives based upon polyalkyleneimine backbones having from about 20% to about 60% of their reactive amino functionalities substituted by C14-20 carboxylic acids, are disclosed. Fiber lubricants and/or sizing compositions comprising such polymer derivatives are also disclosed. The disclosed fiber lubricants exhibit excellent affinity for fiberglass fibers and have excellent hydrophobicity, while also providing excellent lubrication. Methods for preparing said derivatives are also disclosed. Also disclosed are methods for treating fibers using the polymer derivatives.
    Type: Application
    Filed: June 6, 2001
    Publication date: February 14, 2002
    Inventors: Douglas F. Fry, Frank Norman Tuller