Patents Represented by Attorney Dennis C. Millman

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  • Glass fiber sizing compositions, sized glass fibers, and polyolefin composites
    Patent number: 6890650
    Abstract: A sizing composition for glass fibers comprises at least one film-former, at least one silane comprising an alkenyl group comprising a straight chain segment of at least five carbon atoms, wherein at least one carbon-carbon double bond is terminal and wherein the carbon atoms on the terminal double bond are unsubstituted, and at least one lubricant. The sizing composition can be used to coat glass fibers for use as reinforcement for cycloolefins that cure by the ring-opening metathesis polymerization (“ROMP”) reaction.
    Type: Grant
    Filed: July 23, 2003
    Date of Patent: May 10, 2005
    Assignee: PPG Industries Ohio, Inc.
    Inventor: Jerry C. Hedden
  • Regenerator flow distribution by means of upstream and downstream air jets
    Patent number: 4506726
    Abstract: In a regenerative furnace of the type used for melting glass, localized overheating of the regenerator packing is minimized, heating of the regenerator packing is made more uniform, and regenerator efficiency is improved by employing flow control gas jets in the space alongside the regenerator packing to counteract flow imbalances in the regenerator.
    Type: Grant
    Filed: February 28, 1983
    Date of Patent: March 26, 1985
    Assignee: PPG Industries, Inc.
    Inventor: Yih-Wan Tsai