Patents by Inventor Craig H. Leake

Craig H. Leake 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).

  • Corrugating adhesive and use thereof
    Patent number: 8157906
    Abstract: A novel adhesive that finds use in a cold corrugating system has a 5 second tack at a temperature of 160° F. of at least 50±2 grams.
    Type: Grant
    Filed: August 20, 2009
    Date of Patent: April 17, 2012
    Assignee: Henkel AG & Co. KGaA
    Inventors: Frank Swiezkowski, Craig H. Leake, Robert L. Billmers, Robert Wojcik, Michael T. Philbin
  • Waterborne Adhesive
    Publication number: 20100119741
    Abstract: The invention provides the art with a starch based corrugating adhesive that may advantageously be used in the manufacture of water-resistant paperboard products, such as laminated board and corrugated board. The adhesive has the required tack, water resistance and viscosity that allows its use at commercial speeds in a cold corrugating process.
    Type: Application
    Filed: November 7, 2008
    Publication date: May 13, 2010
    Inventors: A. Levent Cimecioglu, Frank J. Swiezkowski, Craig H. Leake
  • CORRUGATING ADHESIVE AND USE THEREOF
    Publication number: 20100043968
    Abstract: A novel adhesive that finds use in a cold corrugating system has a 5 second tack at a temperature of 160° F. of at least 50±2 grams.
    Type: Application
    Filed: August 20, 2009
    Publication date: February 25, 2010
    Inventors: Frank Swiezkowski, Craig H. Leake, Robert L. Billmers, Robert Wojcik, Michael T. Philbin
  • Water resistant high amylose corrugating adhesive with improved runnability
    Patent number: 5454863
    Abstract: A water resistant, starch-based, alkaline corrugating adhesive is provided having improved tack or runnability and comprises using a chemically treated or modified high amylose starch having at least 40% by weight amylose content as the raw starch component.
    Type: Grant
    Filed: November 22, 1994
    Date of Patent: October 3, 1995
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Michael T. Foran, Craig H. Leake, Michael T. Philbin, Peter T. Trzasko
  • All natural, starch-based, water resistant corrugating adhesive
    Patent number: 5405437
    Abstract: An all natural, starch-based, alkaline corrugating adhesive free of formaldehyde and other crosslinking and water resistance additives and having good water resistant properties comprising an aqueous dispersion of a gelatinized carrier starch and a raw ungelatinized starch wherein the carrier starch has a total amylose content of greater than 60% by weight and the gelatinized starch amylose content is at least about 15% by weight of the total starch content in the adhesive.
    Type: Grant
    Filed: June 1, 1993
    Date of Patent: April 11, 1995
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Craig H. Leake, Michael T. Foran, Roger Jeffcoat, Michael T. Philbin, John E. Fannon
  • Water resistant high amylose corrugating adhesive with improved runnability
    Patent number: 5393336
    Abstract: A water resistant, starch-based, alkaline corrugating adhesive is provided having improved tack or runnability and comprises using a chemically treated or modified high amylose starch having at least 40% by weight amylose content as the raw starch component.
    Type: Grant
    Filed: June 1, 1993
    Date of Patent: February 28, 1995
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Michael T. Foran, Craig H. Leake, Michael T. Philbin, Peter T. Trzasko
  • Water resistant alkaline corrugating adhesive composition and paperboard product produced therewith
    Patent number: 5055503
    Abstract: A water resistant, starch-based alkaline corrugating adhesive which includes a polysaccharide graft copolymer containing a reactive aminoethyl halide group.
    Type: Grant
    Filed: June 26, 1989
    Date of Patent: October 8, 1991
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Craig H. Leake, John J. Tsai, Eric A. Meier
  • High solids corrugating adhesive
    Patent number: 4787937
    Abstract: Alkaline-curing, starch-based corrugating adhesives employing ungelatinized tapioca starch and a carrier comprising high amylose starch, wherein the total solids of the adhesive is from 30 to 45% solids by weight, are disclosed. Said adhesives provide improved tack and corrugator running speeds.
    Type: Grant
    Filed: September 30, 1987
    Date of Patent: November 29, 1988
    Assignee: National Starch and Chemical Corporation
    Inventor: Craig H. Leake
  • Water-resistant alkaline adhesive composition
    Patent number: 4775706
    Abstract: A starch-based alkaline curing adhesive is disclosed. The adhesive, when employed in the preparation of corrugated paperboard provides the paperboard with superior water resistant bonds. The adhesive contains from about 6 to 35%, based on total weight of the adhesive, solids basis, of a latex polymer of a halohydrin quaternary ammonium monomer.
    Type: Grant
    Filed: May 30, 1986
    Date of Patent: October 4, 1988
    Assignee: National Starch and Chemical Corporation
    Inventors: Carmine P. Iovine, Robert H. Williams, Craig H. Leake
  • Corrugating adhesive composition and paperboard product produced therewith
    Patent number: 4424291
    Abstract: A corrugating adhesive composition which exhibits superior tack performance is obtained by replacing, on a solids basis, from 5 to 100%, by weight, of the gelatinized starch carrier of a typical known starch-corrugating adhesive with a polymer containing at least 10%, by weight, of carboxyl groups derived from a polymerizable ethylenically unsaturated mono- or polycarboxylic acid or a mixture of these polymers.
    Type: Grant
    Filed: August 10, 1981
    Date of Patent: January 3, 1984
    Assignee: National Starch and Chemical Corporation
    Inventors: Craig H. Leake, Michael A. Silano