Patents Assigned to Spectra-Kote Corporation
  • Patent number: 9133582
    Abstract: A laminated panel formed of a paper coated with three layers. The paper can be selected from liner, medium or other paper. The first layer comprises an acrylic containing polymer a clay synthetic polyethylene, a defoamer a cross-linking agent water and optionally a pigment. The second layer comprises a polymethyl methylacrylate polymer a synthetic polyethylene a clay a defoamer and water. A third layer comprises colloidal silica urea water and a defoamer. Composites of the above paper bonded to an expanded polystyrene block are also disclosed.
    Type: Grant
    Filed: April 14, 2011
    Date of Patent: September 15, 2015
    Assignee: SPECTRA-KOTE CORPORATION
    Inventor: Charles W. Propst, Jr.
  • Patent number: 8734895
    Abstract: In order to provide grease, oil and wax resistance to a paper substrate, a coating containing a binder, a filler material and calcium carbonate is used. The coating of the invention is essentially free from fluorocarbons, which are considered harmful to human and animal populations, and surfactants and other chemicals which may alter the color of the coated paper. The coated paper has a GE brightness level between approximately 50 and approximately 90, while providing superior grease, oil and wax resistance.
    Type: Grant
    Filed: August 20, 2010
    Date of Patent: May 27, 2014
    Assignee: Spectra-Kote Corporation
    Inventor: Charles W. Propst, Jr.
  • Patent number: 8475629
    Abstract: Additives for paper making are disclosed herein. Specifically, the additives are wax-free alternatives to conventional coatings, including ASA, AKD and optionally an acrylic containing composition. Other additives may be included in the coating, such as cationic particles or compositions. The coatings may be used at a variety of points during the paper making process, including on the calender stack and in the wet end.
    Type: Grant
    Filed: September 29, 2008
    Date of Patent: July 2, 2013
    Assignee: Spectra Kote Corporation
    Inventors: Charles W. Propst, Jr., James C. Jones
  • Patent number: 8333872
    Abstract: Additives for paper making are disclosed herein. Specifically, the additives are wax-free alternatives to conventional coatings, including ASA, AKD and optionally an acrylic containing composition. Other additives may be included in the coating, such as cationic particles or compositions. The coatings may be used at a variety of points during the paper making process, including on the calender stack and in the wet end.
    Type: Grant
    Filed: May 13, 2011
    Date of Patent: December 18, 2012
    Assignee: Spectra-Kote Corporation
    Inventors: Charles W. Propst, Jr., James C. Jones
  • Patent number: 8236136
    Abstract: Additives for paper making are disclosed herein. Specifically, the additives are wax-free alternatives to conventional coatings, including ASA, AKD and optionally an acrylic containing composition. Other additives may be included in the coating, such as cationic particles or compositions. The coatings may be used at a variety of points during the paper making process, including on the calender stack and in the wet end.
    Type: Grant
    Filed: February 25, 2010
    Date of Patent: August 7, 2012
    Assignee: Spectra-Kote Corporation
    Inventors: Charles W. Propst, Jr., James C. Jones
  • Patent number: 7833915
    Abstract: In order to provide grease, oil and wax resistance to a paper substrate, a coating containing a binder, a filler material and calcium carbonate is used. The coating of the invention is essentially free from fluorocarbons, which are considered harmful to human and animal populations, and surfactants and other chemicals which may alter the color of the coated paper. The coated paper has a GE brightness level between approximately 50 and approximately 90, while providing superior grease, oil and wax resistance.
    Type: Grant
    Filed: June 29, 2001
    Date of Patent: November 16, 2010
    Assignee: Spectra-Kote Corporation
    Inventor: Charles W. Propst, Jr.
  • Patent number: 7429309
    Abstract: Additives for paper making are disclosed herein. Specifically, the additives are wax-free alternatives to conventional coatings, including ASA, AKD and optionally an acrylic containing composition. Other additives may be included in the coating, such as cationic particles or compositions. The coatings may be used at a variety of points during the paper making process, including on the calender stack and in the wet end.
    Type: Grant
    Filed: October 24, 2003
    Date of Patent: September 30, 2008
    Assignee: Spectra-Kote Corporation
    Inventors: Charles W. Propst, Jr., James C. Jones