Patents by Inventor Thomas Craig Erderly

Thomas Craig Erderly 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: 6670412
    Abstract: Melt processed linear polyethylenes containing an amine additive are shown to exhibit improved processability through the addition of certain surfactants. The amine compounds are generally one or more hindered amine light stabilizers (HALS), amine antistats, amine antioxidants or amine based UV inhibitors. Among the melt processing parameters improved are reduced head pressure, reduced torque, reduced motor load, reduced or eliminated melt fracture, or combinations of these parameters. The surfactants can be chosen from a non-aromatic sulfonate or sulfate salt wherein a cation of the salt is selected from the group consisting of Na, K, Li, and other alkali cations and a quaternary ammonium cations, said surfactant being essentially free of halogens.
    Type: Grant
    Filed: December 19, 1997
    Date of Patent: December 30, 2003
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Thomas Craig Erderly, Joel Edward Schmieg
  • Patent number: 6124428
    Abstract: Melt processed linear polyethylenes which may optionally contain an elastomer, are shown to exhibit improved processability through the addition of certain surfactants. Among the melt processing parameters improved are reduced head pressure, reduced torque, reduced motor load, reduced or eliminated melt fracture, or combinations of these parameters. The surfactants can be chosen from a non-aromatic alkyl sulfonate or sulfate salt wherein a cation of the salt is selected from the group consisting of Na, K, Li, and other alkali cations and quaternary ammonium cations, said surfactant being essentially free of halogens.
    Type: Grant
    Filed: August 6, 1997
    Date of Patent: September 26, 2000
    Assignee: Exxon Chemical Patents, Inc
    Inventors: Joel Edward Schmieg, Thomas Craig Erderly, Dennis George Peiffer, James Joseph Chludzinski
  • Patent number: 6107454
    Abstract: Melt processed linear polyethylenes are shown to exhibit improved processability through the addition of certain surfactants. Among the melt processing parameters improved are reduced head pressure, reduced torque, reduced motor load, reduced or eliminated melt fracture, or combinations of these parameters. The surfactants can be chosen from a non-aromatic alkyl sulfonate or sulfate salt wherein a cation of the salt is selected from the group consisting of Na, K, Li, and other alkali cations and a quaternary ammonium cations, said surfactant being essentially free of halogens.
    Type: Grant
    Filed: August 6, 1997
    Date of Patent: August 22, 2000
    Assignee: Exxon Chemical Patents, Inc.
    Inventors: Joel Edward Schmieg, Thomas Craig Erderly, Dennis George Peiffer, James Joseph Chludzinski
  • Patent number: 5677381
    Abstract: In one embodiment of the present invention, there is provided a composition comprising a major amount of an ethylene alpha olefin copolymer and a minor amount of a lower molecular weight ethylene alpha olefin or a neutralized sulfonated ethylene alpha olefin.
    Type: Grant
    Filed: July 7, 1995
    Date of Patent: October 14, 1997
    Assignee: Exxon Research and Engineering Company
    Inventors: Dennis George Peiffer, James Joseph Chludzinski, Ching-Tai Lue, Thomas Craig Erderly
  • Patent number: H2096
    Abstract: Disclosed are (1) a thermoplastic elastomeric film comprised of an elastomeric arene-diene block copolymer and particular ethylene/&bgr;-olefin copolymers having low ethylene crystallinity and (2) the process of preparing films thereof. The disclosed films have superior strength and elasticity characteristics which render them particularly useful in apparel and healthcare items such as disposable diapers.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: January 6, 2004
    Assignee: Exxon Chemical Patents, I
    Inventors: Thomas Craig Erderly, John Hugh MacKay, Russell Harrel Narramore