Patents Represented by Attorney Gary F. Matz
  • Patent number: 8322561
    Abstract: A container assembly (1) having a container body (11) and exterior shelf structures (41, 44) that are each reversibly attached to exterior surfaces (35, 38) of first (17) and second (20) sidewalls of the container body (11), is described. Each exterior shelf structure (41, 44) has a shelf base (47), and a forward shelf portion (56) and a rear shelf portion (62) that each extend upwardly from the shelf base (47). Each exterior shelf structure has a shelf space (77) that resides between and is defined in part by the forward (56) and rear (62) shelf portions. The forward shelf portion (56) of each exterior shelf structure (41, 44) has an open front or face (86) that is in communication with a recessed chamber (89) of the forward shelf portion (56). The exterior shelf structures (41, 44) may each be reversibly attached to the container body sidewalls (17, 20) by means of tabs (98) that are received within tab apertures (110) of the sidewalls.
    Type: Grant
    Filed: July 19, 2010
    Date of Patent: December 4, 2012
    Assignee: NOVA Chemicals (International) S.A.
    Inventors: Brian Ramsey, Henry Hay, Leslie Kirby
  • Patent number: 8221663
    Abstract: A method of making foamed articles that includes providing a copolymer composition, combining the copolymer composition and cellulosic fibers, applying heat, mixing energy and pressure to the copolymer composition and cellulosic fibers mixture to form a foamable mixture, and forming the foamed article by placing the foamable mixture in a molding or extruding operation. The copolymer composition includes a copolymer of 51% to 99.9% of primary monomers, 0.1% to 49% of anhydride containing monomers, and 0% to 25% of other monomers and 0% to 30% of elastomeric polymers. This is combined at 30% to 99.99% copolymer composition with 0.01% to 70% by cellulosic fibers such that the copolymer anhydride groups react with the cellulosic fiber hydroxyl groups to produce a blowing agent byproduct to form a foamable mixture. The foamed article has a density of not more than 1.3 g/cm3.
    Type: Grant
    Filed: December 15, 2008
    Date of Patent: July 17, 2012
    Assignees: NOVA Chemicals Inc., University of Maine
    Inventors: Stephen Michalik, Douglas J. Gardner, Christopher H. West, Yousoo Han
  • Patent number: 8188190
    Abstract: A method of modifying the rheology of a thermoplastic resin that includes the steps of providing a thermoplastic resin and blending interpolymer resin particles with the thermoplastic resin. The interpolymer resin contains a styrenic polymer intercalated within a polyolefin, such that the thermoplastic resin is present as a continuous phase and the interpolymer resin is present as a dispersed phase. The method provides a rheology modified thermoplastic resin with improved physical characteristics.
    Type: Grant
    Filed: October 21, 2011
    Date of Patent: May 29, 2012
    Assignee: NOVA Chemicals Inc.
    Inventor: Eric Vignola
  • Patent number: 8181807
    Abstract: The present invention relates to a container assembly (1) that includes a support structure (11) and a container (14) that resides reversibly within the support structure interior (62). The support structure (11) includes a pair of opposed first and second support sidewalls (26, 29) each having an elongated tube (32, 44) having a first open end (38, 50) and an elongated hollow interior (35, 47). The container (14) has opposing sidewalls (77, 80) that each have an elongated channel (104, 110). The first and second elongated tubes (32, 44) of the support structure (11) are each reversibly received within the first and second elongated sidewall channels (104, 110) of the container (14), as the container is reversibly introduced (e.g., slid) into the support structure interior (62) through the open forward portion (65) of the support structure (11). The container assembly (1) may be reversibly lifted by lift members (e.g.
    Type: Grant
    Filed: February 2, 2010
    Date of Patent: May 22, 2012
    Assignee: NOVA Chemicals (International) S.A.
    Inventors: Henry Hay, Donald Belcher, Brian Ramsey
  • Patent number: 8168722
    Abstract: A polymer composition that includes from 0.1 to 60 percent by weight of interpolymer resin particles containing a styrenic polymer intercalated within a polyolefin and from 40 to 99.9 percent by weight of at least one second polymer. The polyolefin is present at from 20% to 80% by weight based on the weight of the particles, has a VICAT softening temperature greater than 60° C. and a melt index of from 0.3 to 15 g/10 minutes (190° C./2.16 kg). The styrenic polymer is present at from 20% to 80% by weight based on the weight of the particles. The interpolymer resin particles have a gel content ranging from 0 to 5% by weight based on the weight of said interpolymer resin particles, a VICAT softening temperature ranging from 85° C. to 115° C., and a melt index value ranging from 0.1 to 6.0 (230° C./5.0 kg).
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: May 1, 2012
    Assignee: NOVA Checmials Inc.
    Inventors: Steven M. Krupinski, Eric Vignola
  • Patent number: 8167998
    Abstract: A lightweight ready-mix concrete composition that contains 8-20 volume percent cement, 11-50 volume percent sand, 10-31 volume percent prepuff particles, 9-40 volume percent coarse aggregate, and 10-22 volume percent water, where the sum of components used does not exceed 100 volume percent;. The prepuff particles have an average particle diameter of from 0.2 mm to 8 mm, a bulk density of from 0.02 g/cc to 0.64 g/cc, an aspect ratio of from 1 to 3. The slump value of the composition measured according to ASTM C 143 is from 2 to 8 inches. After the lightweight ready-mix concrete composition is set for 28 days, it has a compressive strength of at least 1400 psi as tested according to ASTM C39.
    Type: Grant
    Filed: September 14, 2010
    Date of Patent: May 1, 2012
    Assignee: NOVA Chemicals Inc.
    Inventors: Tricia Ladely (Guevara), Michael T. Williams, Rick Hughes, Michael R. Kelley, John K Madish, Kristen VanBuskirk
  • Patent number: 8114492
    Abstract: Labeled thin-wall containers molded from pre-expanded expandable thermoplastic particles having a label disposed over at least a portion of the outer surface of the container. The particles are coated with a composition that includes at least 2,500 ppm of a salt of a C8 to C32 carboxylic acid based on the weight of the particles. The label has a thickness of from 10 ?m to 1,500 ?m and the sidewall has a thickness of from 0.5 mm to 5 mm. An aqueous beverage at 80° C. does not leak from the container after being left undisturbed for 24 hours and the container has a rim strength of at least 0.54 kg. The containers are made by placing a label against an inner surface of a female portion of a two-part mold; closing the mold to form a mold cavity; filling the mold cavity with the particles; and fusing the particles.
    Type: Grant
    Filed: November 14, 2008
    Date of Patent: February 14, 2012
    Assignee: NOVA Chemicals Inc.
    Inventors: Brittney Palmer, Robert Heffern, Dennis H. Piispanen, Jiansheng Tang, Michael T. Williams
  • Patent number: 8101686
    Abstract: Interpolymer resin particles comprised of 20% to 60% by weight of uncross-linked polyolefin e.g. polyethylene, polypropylene, and from 40% to 80% by weight based on the weight of the particles of a vinyl aromatic monomer, e.g. styrene, that is polymerized in a suspension process to form an interpenetrating network of polyolefin with polymerized vinyl aromatic monomer particles and having a gel content of 0 to 1.5% by weight based on the weight of the particles for improved processability in end-use applications and improved ESCR properties. The interpolymer resin particles have a VICAT softening temperature from about 90° C. to about 115° C., and a melt index from 0.2 to 35.0 g/10 minutes (Condition G). The particles can be mixed with a blowing agent to form extruded foam articles, such as foam board, and can be used in extrusion, injection molding, rotomolding, and thermoforming processes to form a layer, e.g.
    Type: Grant
    Filed: February 4, 2011
    Date of Patent: January 24, 2012
    Assignee: NOVA Chemicals Inc.
    Inventor: Steven M Krupinski
  • Patent number: 8101101
    Abstract: Methods for improving the resistance of fumigant sorption in produce containers made from expandable polystyrene particles in a fumigation process, and related produce containers. An embodiment involves pre-expanding the expandable polystyrene particles to form pre-expanded particles; applying a coating comprised of a chemical selected from the group consisting of mineral oil, polyethylene wax, ethylene vinyl alcohol copolymer, and polyethylene glycol to the pre-expanded particles and in amount of 0.05 to 5.0 parts per hundred; and forming the container from the pre-expanded particles. A further embodiment involves applying the chemical coating to the expandable particles; pre-expanding the expandable polystyrene particles to form pre-expanded particles; and forming the containers from the pre-expanded particles. Other methods involve increasing the cell size of the expandable particles used to form the produce container.
    Type: Grant
    Filed: December 4, 2006
    Date of Patent: January 24, 2012
    Assignee: NOVA Chemicals Inc.
    Inventors: Jiansheng Tang, Jeffory E. Russell, Christine Hetzer, David A. Cowan
  • Patent number: 8101102
    Abstract: A method for improving the resistance of fumigant sorption in a produce container made of expandable polystyrene particles in a fumigation process, and related produce container. Expandable polystyrene particles having a density ranging from 40.0 to 32.0 pounds per cubic foot and a blowing agent amount ranging from 2.5 to 7.5 weight percent are pre-expanded to form pre-expanded particles having a core bulk density ranging from 12.5 to 2.0 pounds per cubic foot, and a skin density ranging between 40.0 and 32.0 pounds per cubic foot and a thickness ranging from 0.1 to 2 microns. These pre-expanded particles are injected into a mold to form a produce container having a wall thickness ranging from 0.25 to 2.0 inches.
    Type: Grant
    Filed: December 4, 2006
    Date of Patent: January 24, 2012
    Assignee: NOVA Chemicals Inc.
    Inventors: Jiansheng Tang, Michael T. Williams, David A. Cowan
  • Patent number: 8053525
    Abstract: A method of modifying the rheology of a thermoplastic resin that includes the steps of providing a thermoplastic resin and blending interpolymer resin particles with the thermoplastic resin. The interpolymer resin contains a styrenic polymer intercalated within a polyolefin, such that the thermoplastic resin is present as a continuous phase and the interpolymer resin is present as a dispersed phase. The method provides a rheology modified thermoplastic resin with improved physical characteristics.
    Type: Grant
    Filed: March 17, 2010
    Date of Patent: November 8, 2011
    Assignee: NOVA Chemicals Inc.
    Inventor: Eric Vignola
  • Patent number: 8048219
    Abstract: A method of placing a concrete compositions including a) combining 3-40 volume percent cement, 5-50 volume percent fine aggregate, 5-50 volume percent coarse aggregate, and 10-22 volume percent water; b) adding 1.5-40 volume percent of prepuff particles to form a concrete composition; and c) pumping the concrete composition to a point higher in elevation than the delivery point of the concrete to place the concrete. The concrete composition contains less than 30 volume percent of other light weighting aggregates and the prepuff particles have an average particle diameter of from 0.2 mm to 8 mm, a bulk density of from 0.02 g/cc to 0.64 g/cc, an aspect ratio of from 1 to 3. The slump value of the placed concrete measured according to ASTM C 143 is greater than 1 inch and the concrete has a density of from about 40 to about 135 lb./ft3.
    Type: Grant
    Filed: September 17, 2008
    Date of Patent: November 1, 2011
    Assignee: NOVA Chemicals Inc.
    Inventors: Daniel Woolfsmith, Michael T. Williams, Rick Hughes, Michael R. Kelley, John K. Madish, Kristen Van Buskirk, Tricia Guevara Ladely
  • Patent number: 8029617
    Abstract: A lightweight concrete composition containing from 10 to 90 volume percent of a cement composition, from 10 to 90 volume percent of particles having an average particle diameter of from 0.2 mm to 8 mm, a bulk density of from 0.03 g/cc to 0.64 g/cc, an aspect ratio of from 1 to 3, and from 0 to 50 volume percent of aggregate; where the sum of components used does not exceed 100 volume percent, and where after the lightweight concrete composition is set it has a compressive strength of at least 1700 psi as tested according to ASTM C39 after seven days. The concrete composition can be used to make concrete masonry units, construction panels, road beds and other articles.
    Type: Grant
    Filed: November 4, 2009
    Date of Patent: October 4, 2011
    Assignee: NOVA Chemicals Inc.
    Inventors: Tricia Guevara, Michael T. Williams, David A. Cowan, John K. Madish, Kolapo Adewale, Roger Moore, Mary Margaret Moore, legal representative, Tobias Blain Hileman
  • Patent number: 7972695
    Abstract: Expandable or pre-expanded thermoplastic particles, e.g. polystyrene particles, used to form foam containers e.g. cups, bowls, are coated with a coating composition comprising a liquid part consisting of a) liquid polyethylene glycol with an average molecular weight of 200 to 800; and a solid part comprising components selected from the group consisting of b) polyolefin wax, e.g. polyethylene wax, c) a metal salt of higher fatty acids, e.g. zinc stearate or calcium stearate; d) polyethylene glycol with an average molecular weight of 900 to 10,000; and e) a fatty bisamide or fatty amide, e.g. ethylene bis-stearamide; and combinations of b) through e). The coating composition prevents or resists leakage of liquids and foods with oil and/or fatty components and improves the rim strength and ATF properties of foam containers.
    Type: Grant
    Filed: January 11, 2011
    Date of Patent: July 5, 2011
    Assignee: NOVA Chemicals Inc.
    Inventors: Jiansheng Tang, David Allen Cowan, Dennis H. Piispanan, Michael T. Williams
  • Patent number: 7963080
    Abstract: A composite building panel that includes a central body, substantially parallelepipedic in shape, containing an expanded polymer matrix, having opposite faces, a top surface, and a bottom surface; at least one embedded framing stud longitudinally extending across the central body between the opposite faces, having a first end embedded in the expanded polymer matrix, a second end extending away from the bottom surface of the central body, and one or more expansion holes in the embedded studs between the first end of the embedded stud and bottom surface through which the polymer matrix expands. A concrete layer can optionally cover a portion of the top surface and/or bottom surface. The building panel can be positioned perpendicular to a structural wall and/or foundation to provide a floor panel. The second end of the framing studs can be embedded in a second central body to provide an insulated concrete form.
    Type: Grant
    Filed: February 25, 2011
    Date of Patent: June 21, 2011
    Assignee: NOVA Chemicals Inc.
    Inventor: Jay Bowman
  • Patent number: 7964272
    Abstract: A lightweight cementitious composition containing from 22 to 90 volume percent of a cement composition and from 10 to 78 volume percent of particles having an average particle diameter of from 0.2 mm to 8 mm, a bulk density of from 0.03 g/cc to 0.64 g/cc, an aspect ratio of from 1 to 3, where after the lightweight cementitious composition is set it has a compressive strength of at least 1700 psi as tested according to ASTM C39. The cementitious composition can be used to make concrete masonry units, construction panels, road beds and other articles and can be included as a layer on wall panels and floor panels and can be used in insulated concrete forms. Aspects of the lightweight cementitious composition can be used to make lightweight structural units.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: June 21, 2011
    Assignee: NOVA Chemicals Inc.
    Inventors: Tricia Guevara, Michael T. Williams, David A. Cowan, John K. Madish, Kolapo Adewale, Roger Moore, Jay Bowman
  • Patent number: 7947751
    Abstract: Resin beads having an average particle size of from 0.001 mm to 10 mm and containing a continuous phase and a particulate dispersed phase are described. The continuous phase includes elastomeric polymers; the dispersed phase includes homopolymers and/or copolymers containing repeat units resulting from the polymerization of one or more aryl polymerizable monomers. The unexpanded polymer resin beads can be prepared by dispersing an organic phase containing elastomeric polymers and one or more monomers, into droplets and polymerizing the monomers in the organic droplets in a low shear flow pattern. The beads can be impregnated with blowing agents, expanded and can be used to make molded articles. Resin beads having a continuous phase comprising a nitrile rubber, and a dispersed phase comprising one or more homopolymers and/or copolymers containing repeat units resulting form the polymerization of one or more aryl polymerizable show prolonged retention of blowing agents in unexpanded form.
    Type: Grant
    Filed: November 13, 2009
    Date of Patent: May 24, 2011
    Assignee: NOVA Chemicals Inc.
    Inventors: Grazyna Petela, Michel F. J. Berghmans, Karel Cornelis Bleijenberg, Paul E. Arch
  • Patent number: 7906589
    Abstract: Interpolymer resin particles comprised of 20% to 60% by weight of uncross-linked polyolefin e.g. polyethylene, polypropylene, and from 40% to 80% by weight based on the weight of the particles of a vinyl aromatic monomer, e.g. styrene, that is polymerized in a suspension process to form an interpenetrating network of polyolefin with polymerized vinyl aromatic monomer particles and having a gel content of 0 to 1.5% by weight based on the weight of the particles for improved processability in end-use applications and improved ESCR properties. The interpolymer resin particles have a VICAT softening temperature from about 90° C. to about 115° C., and a melt index from 0.2 to 35.0 g/10 minutes (Condition G). The particles can be mixed with a blowing agent to form extruded foam articles, such as foam board, and can be used in extrusion, injection molding, rotomolding, and thermoforming processes to form a layer, e.g.
    Type: Grant
    Filed: July 9, 2008
    Date of Patent: March 15, 2011
    Assignee: NOVA Chemicals Inc.
    Inventor: Steven M. Krupinski
  • Patent number: 7892645
    Abstract: Expandable or pre-expanded thermoplastic particles, e.g. polystyrene particles, used to form foam containers e.g. cups, bowls, are coated with a coating composition comprising a liquid part consisting of a) liquid polyethylene glycol with an average molecular weight of 200 to 800; and a solid part comprising components selected from the group consisting of b) polyolefin wax, e.g. polyethylene wax, c) a metal salt of higher fatty acids, e.g. zinc stearate or calcium stearate; d) polyethylene glycol with an average molecular weight of 900 to 10,000; and e) a fatty bisamide or fatty amide, e.g. ethylene bis-stearamide; and combinations of b) through e). The coating composition prevents or resists leakage of liquids and foods with oil and/or fatty components and improves the rim strength and ATF properties of foam containers.
    Type: Grant
    Filed: August 19, 2010
    Date of Patent: February 22, 2011
    Assignee: NOVA Chemicals Inc.
    Inventors: Jiansheng Tang, David Allen Cowan, Dennis H Piispanen, Michael T Williams
  • Patent number: RE43253
    Abstract: A lightweight concrete composition containing from 10 to 90 volume percent of a cement composition, from 10 to 90 volume percent of particles having an average particle diameter of from 0.2 mm to 8 mm, a bulk density of from 0.03 g/cc to 0.64 g/cc, an aspect ratio of from 1 to 3, and from 0 to 50 volume percent of aggregate; where the sum of components used does not exceed 100 volume percent, and where after the lightweight concrete composition is set it has a compressive strength of at least 1700 psi as tested according to ASTM C39 after seven days. The concrete composition can be used to make concrete masonry units, construction panels, road beds and other articles.
    Type: Grant
    Filed: April 29, 2010
    Date of Patent: March 20, 2012
    Assignee: NOVA Chemicals Inc.
    Inventors: Tricia Guevara Ladely, Michael T. Williams, David A. Cowan, John K. Madish, Kolapo Adewale, Roger Moore, Mary Margaret Moore, legal representative, Blain Hileman