Patents by Inventor Marek J. Gnatowski

Marek J. Gnatowski 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: 7785896
    Abstract: A composite wood product and methods for manufacturing the same and determining the concentration and distribution of an organic biocide within a composite wood product are provided. The organic biocide may be added to wood elements (i.e., fibers, flakes, strands, veneers) prior to consolidation and/or heating of the wood particles to form the composite wood product. A tracer additive may be mixed with the biocide, or applied separately to the furnish which is used to produce the composite wood product. The tracer additive may be detected via, for example, x-ray fluorescence. An amount of tracer additive detected may correlate to an amount of organic biocide within the wood elements and/or the composite wood product.
    Type: Grant
    Filed: November 14, 2008
    Date of Patent: August 31, 2010
    Assignee: Weyerhaeuser Company Limited
    Inventors: Marek J. Gnatowski, Christine L. Mah, Gareth Paul Merrick
  • Patent number: 7691922
    Abstract: The addition of zinc borate alone or together with a hindered amine light stabilizer and ultra-violet light absorber to organic materials such as thermoplastic polyolefin resin, as is common in wood-plastic composites, provides a substantial reduction in the ultra-violet light degradation of the resin in comparison with similar materials made without zinc borate. This could provide substantial improvements in the long term durability of wood-plastic composites and other organic materials which are used in exterior environments and subject to ultra-violet exposure from the sun.
    Type: Grant
    Filed: July 1, 2005
    Date of Patent: April 6, 2010
    Assignee: U.S. Borax Inc.
    Inventors: Mark J. Manning, Marek J. Gnatowski, Christine Mah, Cecilia L. Stevens
  • Publication number: 20090068756
    Abstract: A composite wood product and methods for manufacturing the same and determining the concentration and distribution of an organic biocide within a composite wood product are provided. The organic biocide may be added to wood elements (i.e., fibers, flakes, strands, veneers) prior to consolidation and/or heating of the wood particles to form the composite wood product. A tracer additive may be mixed with the biocide, or applied separately to the furnish which is used to produce the composite wood product. The tracer additive may be detected via, for example, x-ray fluorescence. An amount of tracer additive detected may correlate to an amount of organic biocide within the wood elements and/or the composite wood product.
    Type: Application
    Filed: November 14, 2008
    Publication date: March 12, 2009
    Applicant: WEYERHAEUSER COMPANY
    Inventors: Marek J. Gnatowski, Christine L. Mah, Gareth Paul Merrick
  • Publication number: 20080233210
    Abstract: Polymeric materials containing at least one continuous phase man-made polymer and at least one biodegradable component are protected against microbial attack through the use a combination of a boron-containing compound and an organic biocide. Methods and compositions for preparing treated polymeric materials are provided. A shaped article comprising a continuous phase man-made thermoplastic resin polymer, a biodegradable component, a boron-containing compound and an organic biocide is also provided.
    Type: Application
    Filed: November 30, 2006
    Publication date: September 25, 2008
    Applicant: U.S. BORAX INC.
    Inventors: Mark J. Manning, Marek J. Gnatowski
  • Publication number: 20080182931
    Abstract: The addition of zinc borate alone or together with a hindered amine light stabilizer and ultra-violet light absorber to organic materials such as thermoplastic polyolefin resin, as is common in wood-plastic composites, provides a substantial reduction in the ultra-violet light degradation of the resin in comparison with similar materials made without zinc borate. This could provide substantial improvements in the long term durability of wood-plastic composites and other organic materials which are used in exterior environments and subject to ultra-violet exposure from the sun.
    Type: Application
    Filed: July 1, 2005
    Publication date: July 31, 2008
    Applicant: Waters Investments Limited
    Inventors: Mark J. Manning, Marek J. Gnatowski, Christine Mah, Cecilia L. Stevens
  • Patent number: 6949160
    Abstract: Extrusion coating of a removable thermoplastic material onto freshly painted (non-fully cured paint) surfaces has been found to be an effective method for providing protection against damage during handling, and blocking during stacking, enabling handling of the substrate shortly after painting. Furthermore, the extrusion coating allows the paint to dry and cure on porous and non-porous substrates.
    Type: Grant
    Filed: May 30, 2002
    Date of Patent: September 27, 2005
    Assignee: Weiss Prestaining, Inc.
    Inventors: Christopher H. Weiss, Michael G. Weiss, Harley L. Weiss, Marek J. Gnatowski, Andrew Koutsandreas
  • Publication number: 20020195191
    Abstract: Extrusion coating of a removable thermoplastic material onto freshly painted (non-fully cured paint) surfaces has been found to be an effective method for providing protection against damage during handling, and blocking during stacking, enabling handling of the substrate shortly after painting. Furthermore, the extrusion coating allows the paint to dry and cure on porous and non-porous substrates.
    Type: Application
    Filed: May 30, 2002
    Publication date: December 26, 2002
    Inventors: Christopher H. Weiss, Michael G. Weiss, Harley L. Weiss, Marek J. Gnatowski, Andrew Koutsandreas
  • Patent number: 5378544
    Abstract: A composite wood product made from discrete wood particles secured together by a cured bisphenol A formaldehyde resin cured from an A-stage bisphenol A formaldehyde resin having an A-stage bisphenol A to formaldehyde mole ratio of 1 to between 2.5 and 4 and between 3 and 11% of caustic measured as sodium hydroxide based on the weight of resin solids. Preferably the resin will include 2 to 10% urea based on the resin solids. The cured bisphenol A formaldehyde resin secures the wood particles together to form a composite wood product having light colored glue lines that substantially corresponds in color with the wood so that the glue lines tend to be unnoticeable.
    Type: Grant
    Filed: May 3, 1993
    Date of Patent: January 3, 1995
    Assignee: Trus Joist MacMillan, a Limited Partnership
    Inventors: Marek J. Gnatowski, Robert L. Pike, Douglas E. Rogerson
  • Patent number: 5273787
    Abstract: A wood product is protectively coated while maintaining the appearance of wood without discoloration by applying to the surface of a dry wood member a sealer coating containing a cyclic epoxy and an anhydride and curing the sealer, while reacting, at least a portion of the epoxy with lignin in the wood and at least a portion of the anhydride with cellulose and lignin in the wood, to bind the sealer to the wood, and cross linking cellulose, followed by applying a protective coating over the sealer before the sealer has been cured completely to bind the protective coating to the sealer. The protective coating provides a barrier to UV penetration and increases the durability of the surface.
    Type: Grant
    Filed: April 3, 1992
    Date of Patent: December 28, 1993
    Assignee: MacMillan Bloedel Limited
    Inventor: Marek J. Gnatowski
  • Patent number: 4879083
    Abstract: A method of making a borate treated wood particle board by applying an adhesive resin and a particulate borate treating agent (anhydrous borax or zinc borate) in a dry form to the wood particles to produce treated wood particles (wafers). The treated wood particles are formed into a mat and consolidated under heat and pressure to distribute the resin in the wood before the viscosity of the resin is effected by contact with a sufficient amount of borate to significantly impair penetration of the resin into the wood.
    Type: Grant
    Filed: June 17, 1988
    Date of Patent: November 7, 1989
    Assignee: MacMillan Bloedel Limited
    Inventors: Robert M. Knudson, Marek J. Gnatowski