Patents Represented by Attorney, Agent or Law Firm Thomas W Steinberg
  • Phosphorus-containing fluoromonomers and polymers thereof
    Patent number: 6177196
    Abstract: Fluorinated vinyl ethers having phosphorus-containing groups are useful as monomers in making fluoropolymers having functional sites.
    Type: Grant
    Filed: February 23, 1999
    Date of Patent: January 23, 2001
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Paul Douglas Brothers, Ming-Hong Hung, Michael Joseph Michalczyk, Tatsuhiro Takahashi
  • Fluoropolymer composition
    Patent number: 6166138
    Abstract: Fluoropolymer compositions containing melt-fabricable functionalized fluoropolymer and liquid crystal polymer have enhanced adhesion to metal even at low concentrations of liquid crystal polymer.
    Type: Grant
    Filed: July 13, 1998
    Date of Patent: December 26, 2000
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Robert Joseph Kolouch
  • Wear resistant non-stick resin coated substrates
    Patent number: 6123999
    Abstract: A method for preparing a scratch and abrasion resistant surface on unroughened aluminum or stainless steel cookware, for subsequent coating with a nonstick polymer resin, such as a fluoropolymer, in a liquid and/or powder medium. The scratch and abrasion resistant surface consists of a thermally sprayed aluminum or stainless steel, respectively. A metal coated substrate produced by this method and an article subsequently coated with a fluoropolymer surface by this method are also described.
    Type: Grant
    Filed: March 17, 1998
    Date of Patent: September 26, 2000
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Vinci Martinez Felix, Pidatala Krishna Mohan, William Francis McHale
  • Applications of low melt viscosity polytetrafluorethylene
    Patent number: 6013719
    Abstract: Low melt viscosity polytetrafluorethylene (PTFE), i.e. having a melt viscosity of 50 to 1.times.10.sup.5 Pa.multidot.s at 372.degree. C., is combined with non-fluorinated thermally stable polymer such as polyarleneetherketone to provide melt-fabricability application for the low MV PTFE and provide improved properties for the thermally stable polymer.
    Type: Grant
    Filed: June 15, 1998
    Date of Patent: January 11, 2000
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Jacob Lahijani