Patents by Inventor Alan B. Weissberg

Alan B. Weissberg 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: 7064154
    Abstract: Compositions for use in optical fiber coatings and optical fibers and optical fiber arrays using these coatings are disclosed, as are methods for making the same. The compositions comprise a combination of two different radiation curable urethane oligomers, and can further comprise one or more reactive monomers. One of the oligomers has at least three functional groups that can undergo radiation cure, and comprises a lactone modified polyol.
    Type: Grant
    Filed: January 9, 2004
    Date of Patent: June 20, 2006
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Shengkui Hu, Alan B. Weissberg
  • Patent number: 6872760
    Abstract: Compositions for use in optical fiber coatings and optical fibers and optical fiber arrays using these coatings are disclosed, as are methods for making the same. The compositions comprise a combination of two different radiation curable urethane oligomers, and can further comprise one or more reactive monomers. One of the oligomers has at least three functional groups that can undergo radiation cure.
    Type: Grant
    Filed: February 6, 2003
    Date of Patent: March 29, 2005
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Shengkui Hu, Alan B. Weissberg
  • Publication number: 20040157949
    Abstract: Compositions for use in optical fiber coatings and optical fibers and optical fiber arrays using these coatings are disclosed, as are methods for making the same. The compositions comprise a combination of two different radiation curable urethane oligomers, and can further comprise one or more reactive monomers. One of the oligomers has at least three functional groups that can undergo radiation cure.
    Type: Application
    Filed: February 6, 2003
    Publication date: August 12, 2004
    Inventors: Shengkui Hu, Alan B. Weissberg
  • Publication number: 20040157950
    Abstract: Compositions for use in optical fiber coatings and optical fibers and optical fiber arrays using these coatings are disclosed, as are methods for making the same. The compositions comprise a combination of two different radiation curable urethane oligomers, and can further comprise one or more reactive monomers. One of the oligomers has at least three functional groups that can undergo radiation cure, and comprises a lactone modified polyol.
    Type: Application
    Filed: January 9, 2004
    Publication date: August 12, 2004
    Inventors: Shengkui Hu, Alan B. Weissberg
  • Publication number: 20030119998
    Abstract: Compositions for use in optical fiber coatings, optical fibers and optical fiber arrays using these coatings and methods for making the same are disclosed. The composition comprises a combination of two different urethane (meth)acrylates, and can further comprise one or more reactive monomers.
    Type: Application
    Filed: October 17, 2002
    Publication date: June 26, 2003
    Inventors: Shengkui Hu, Alan B. Weissberg, Robert B. Hodek
  • Patent number: 6001892
    Abstract: A liquid, radiation curable composition is disclosed that includes a reactive diluent to lower initial application viscosity without substantial reduction of cure rate. The composition of the present invention comprises: (a) an unsaturated polyester polymer; (b) a non-polymerized, cocurable polyfunctional vinyl ether component; and (c) a reactive diluent which is an unsaturated dioic acid ester having the following structural formula: ##STR1## wherein at least one of R.sup.1 and R.sup.2 is a group that includes an oxygen with a carbon adlacent thereto and an abstractable hydrogen attached to the carbon.
    Type: Grant
    Filed: February 16, 1996
    Date of Patent: December 14, 1999
    Assignee: PPG Industries Oho, Inc.
    Inventors: Alan B. Weissberg, Edward E. McEntire, Charles B. Friedlander
  • Patent number: 5942556
    Abstract: Disclosed is a radiation curable composition which includes: (a) an unsaturated ester compound, and (b) a pulverizable vinyl ether compound. The unsaturated ester compound is characterized as having a plurality of unsaturated ester groups per molecule. The pulverizable vinyl ether compound is characterized as including at least one of the following: (a) a compound having an average of greater than 1.0 reactive vinyl ether groups per molecule, and (b) a vinyl ether-containing group bonded to the unsaturated ester compound such that there is an average of at least 1.0 reactive vinyl ether group per molecule. The unsaturated ester compound, the vinyl ether compound and/or a mixture thereof is treated with a reducing agent so as to decompose destabilizing agents present therein that would initiate premature polymerization of the vinyl ether compound.
    Type: Grant
    Filed: November 27, 1996
    Date of Patent: August 24, 1999
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Charles B. Friedlander, Ronald R. Ambrose, David A. Diehl, Alan B. Weissberg, Carolyn A. Novak
  • Patent number: 4880668
    Abstract: This invention relates to 2-mercaptothiazoline-containing resinous protective compositions which can be lead-free compositions for mirror-back coatings which are useful in reducing or preventing corrosion.
    Type: Grant
    Filed: November 14, 1989
    Date of Patent: November 14, 1989
    Assignee: PPG Industries, Inc.
    Inventors: Deborah E. Hayes, Alan B. Weissberg, Charles B. Friedlander, Edward T. Ryan
  • Patent number: 4745003
    Abstract: Disclosed is a method of coating the metal side of a mirror by applying to a reflective layer of metal adhered to a transparent glass sheet one or more adherent protective layers wherein the outermost protective layer is a cured coating formed from a liquid coating composition which is curable by exposure to ultraviolet light (UV). The UV curable liquid coating composition has a high degree of resistance to shrinkage upon curing.
    Type: Grant
    Filed: December 22, 1986
    Date of Patent: May 17, 1988
    Assignee: PPG Industries, Inc.
    Inventors: Robert J. Sirkoch, Ken W. Niederst, Alan B. Weissberg, Paul P. Greigger, Calvin C. Henning
  • Patent number: 4707405
    Abstract: Compositions of the invention comprise an organic film-forming resin and a cyanamide salt of a non-lead metal. The composition, when applied to a thin metallic film, inhibits degradation of the thin metallic film as compared to the composition without calcium cyanamide. Processes comprising the step of applying a composition of the invention to a thin metallic film and articles comprising a thin metallic film and a layer of a hardened composition of the invention are also disclosed.
    Type: Grant
    Filed: January 2, 1985
    Date of Patent: November 17, 1987
    Assignee: PPG Industries, Inc.
    Inventors: Elaine L. Evans, James E. Graham, Alan B. Weissberg