Patents by Inventor Charles P. Klass

Charles P. Klass 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).

  • Publication number: 20160194527
    Abstract: This specification relates to cold-set biobased adhesive compositions, comprising aqueous formulations of biopolymers, optionally with alkaline additives, optionally fortified with high-aspect-ratio inorganic and organic fillers, fibers and nanofibers, optionally with barrier-inducing additives. The adhesive may be used, for example, as a cold-set, preferably biobased, laminating adhesive. In particular, the laminating adhesive may be used to create liner and/or medium paperboard products for light-weight paperboard and corrugated boxboard materials that, in some examples, have enhanced strength and/or barrier properties as compared with similar weight paperboard products. These laminated paperboard and corrugated boxboard materials are used, for example, as light weight packaging materials that are compatible with paper recycling and composting operations. In the context of this abstract, the term “lamination” or “laminating” relates to the adhesion of two flat (rather than pre-corrugated) paper surfaces, i.
    Type: Application
    Filed: January 4, 2016
    Publication date: July 7, 2016
    Inventors: Steven BLOEMBERGEN, Charles P. KLASS
  • Publication number: 20100203318
    Abstract: Provided herein are coating compositions for paper comprising aluminum phosphate, aluminum metaphosphate, aluminum orthophosphate and/or aluminum polyphosphate pigments. Methods of making and using the compositions are described.
    Type: Application
    Filed: February 10, 2010
    Publication date: August 12, 2010
    Applicants: BUNGE FERTILIZANTES S.A., UNIVERSIDADE ESTADUAL DE CAMPINAS
    Inventors: Fernando Galembeck, Charles P. Klass
  • Patent number: 7435483
    Abstract: Disclosed are coated fiber-containing articles, including paper, paperboard, and molded fiber, and methods for preparing such articles. A preferred method comprises heating paperboard containing a polymeric binder to a temperature sufficient to remove at least some moisture from the paperboard; applying an aqueous dispersion or solution of at least one water-dispersible or water-soluble polymer to the paperboard product; heating the paperboard to at least partially cure the water-dispersible or water-soluble polymer; and cooling the paperboard to at least 160° F. to reduce the tackiness of the cured water-dispersible polymer.
    Type: Grant
    Filed: April 4, 2002
    Date of Patent: October 14, 2008
    Assignee: Advanced Plastics Technologies Luxembourg S.A.
    Inventors: Robert A. Lee, Gerald A. Hutchinson, Charles P. Klass
  • Patent number: 7201826
    Abstract: A microparticle retention aid for use in papermaking containing a high performance purified natural zeolite pigment is disclosed. Use of the pigment facilitates manufacture of papers with improved quality and economics. When used as filler, the novel zeolite pigment is readily retained and eliminates print-through in uncoated papers. The novel zeolite pigment is low in abrasion and provides improved coefficient of friction.
    Type: Grant
    Filed: May 17, 2004
    Date of Patent: April 10, 2007
    Assignee: ZO Mineral Partners Ltd.
    Inventors: Charles P. Klass, Martin D. Sikora
  • Publication number: 20040131871
    Abstract: Disclosed are coated fiber-containing articles, including paper, paperboard, and molded fiber, and methods for preparing such articles. A preferred method comprises heating paperboard containing a polymeric binder to a temperature sufficient to remove at least some moisture from the paperboard; applying an aqueous dispersion or solution of at least one water-dispersible or water-soluble polymer to the paperboard product; heating the paperboard to at least partially cure the water-dispersible or water-soluble polymer; and cooling the paperboard to at least 160° F. to reduce the tackiness of the cured water-dispersible polymer.
    Type: Application
    Filed: October 2, 2003
    Publication date: July 8, 2004
    Inventors: Robert A. Lee, Gerald A. Hutchinson, Charles P. Klass
  • Patent number: 6679973
    Abstract: A high performance purified natural zeolite pigment composition for use in papermaking and paper coating is disclosed. Use of the pigment facilitates manufacture of coated ink jet and digital printing papers with improved quality and economics. The novel zeolite pigment composition can also be used as a supplementary pigment to improve the properties of coated paper and paperboard for flexographic and water-based gravure printing. When used as filler, the novel zeolite pigment composition is readily retained and eliminates print-through in uncoated papers. The novel zeolite pigment is low in abrasion and provides improved coefficient of friction. The novel zeolite pigment is also useful as a microparticulate retention aid in papermaking and as an additive to improve the performance of deinking processes.
    Type: Grant
    Filed: June 4, 2003
    Date of Patent: January 20, 2004
    Assignee: Zo Resources, LLC
    Inventors: Charles P. Klass, Margaret K. Joyce
  • Publication number: 20030220036
    Abstract: Disclosed are laminates and coated materials, such as coated paper, and methods for making same utilizing hydroxy-phenoxyether polymers. In preferred embodiments, the laminates and coated materials of this invention are recyclable and/or are made, at least in part, from recycled materials.
    Type: Application
    Filed: February 26, 2003
    Publication date: November 27, 2003
    Inventors: Robert A. Lee, Gerald A. Hutchinson, Basharat A. Nazir, Charles P. Klass
  • Publication number: 20030205346
    Abstract: A high performance purified natural zeolite pigment composition for use in papermaking and paper coating is disclosed. Use of the pigment facilitates manufacture of coated ink jet and digital printing papers with improved quality and economics. The novel zeolite pigment composition can also be used as a supplementary pigment to improve the properties of coated paper and paperboard for flexographic and water-based gravure printing. When used as filler, the novel zeolite pigment composition is readily retained and eliminates print-through in uncoated papers. The novel zeolite pigment is low in abrasion and provides improved coefficient of friction. The novel zeolite pigment is also useful as a microparticulate retention aid in papermaking and as an additive to improve the performance of deinking processes.
    Type: Application
    Filed: June 4, 2003
    Publication date: November 6, 2003
    Inventors: Charles P. Klass, Margaret K. Joyce
  • Patent number: 6616748
    Abstract: A high performance purified natural zeolite pigment composition for use in papermaking and paper coating is disclosed. Use of the pigment facilitates manufacture of coated ink jet and digital printing papers with improved quality and economics. The novel zeolite pigment composition can also be used as a supplementary pigment to improve the properties of coated paper and paperboard for flexographic and water-based gravure printing. When used as filler, the novel zeolite pigment composition is readily retained and eliminates print-through in uncoated papers. The novel zeolite pigment is low in abrasion and provides improved coefficient of friction. The novel zeolite pigment is also useful as a microparticulate retention aid in papermaking and as an additive to improve the performance of deinking processes.
    Type: Grant
    Filed: August 3, 2001
    Date of Patent: September 9, 2003
    Assignee: ZO Resources, LLC
    Inventors: Charles P. Klass, Margaret K. Joyce
  • Publication number: 20030051637
    Abstract: A high performance purified natural zeolite pigment composition for use in papermaking and paper coating is disclosed. Use of the pigment facilitates manufacture of coated ink jet and digital printing papers with improved quality and economics. The novel zeolite pigment composition can also be used as a supplementary pigment to improve the properties of coated paper and paperboard for flexographic and water-based gravure printing. When used as filler, the novel zeolite pigment composition is readily retained and eliminates print-through in uncoated papers. The novel zeolite pigment is low in abrasion and provides improved coefficient of friction. The novel zeolite pigment is also useful as a microparticulate retention aid in papermaking and as an additive to improve the performance of deinking processes.
    Type: Application
    Filed: August 3, 2001
    Publication date: March 20, 2003
    Inventor: Charles P. Klass
  • Publication number: 20020100566
    Abstract: Paper comprised of suitable amounts of a hydroxy-phenoxyether polymer is effective to provide that paper with an increase in sizing or strength. Such paper may be prepared by intermixing dispersions or solutions of hydroxy-phenoxyether polymer with the pulp slurry or web during papermaking, or by application to formed paper. Paper may be coated or laminated by applying such dispersions or solutions.
    Type: Application
    Filed: December 20, 2000
    Publication date: August 1, 2002
    Inventors: Robert A. Lee, Gerald Hutchinson, Basharat Ahmad Nazir, Charles P. Klass