Patents Assigned to Spartech Corporation
  • Publication number: 20140170344
    Abstract: A multi-layer sheet structure is provided. The multi-layer sheet structure comprises at least one structural layer comprising high impact polystyrene and at least one moisture barrier layer comprising greater than about 30 percent cyclic olefin copolymer by weight of the at least one moisture barrier layer.
    Type: Application
    Filed: February 18, 2013
    Publication date: June 19, 2014
    Applicant: SPARTECH CORPORATION
    Inventors: Pranabes K. Pramanik, Gregory M. Dixon
  • Patent number: 8485377
    Abstract: A modular container assembly is provided for packaging a plurality of products. The modular container assembly includes a frame and a portable container. The frame includes a plurality of edge portions that define a plurality of openings. The container includes a sidewall that defines a cavity. The container is sealable at a rim portion of the sidewall to retain a product within the cavity. The container is configured to fit within a first opening of the plurality of openings such that the rim portion is removably coupled to a first edge portion of the plurality of edge portions.
    Type: Grant
    Filed: October 26, 2010
    Date of Patent: July 16, 2013
    Assignee: Spartech Corporation
    Inventors: Sandy McDonald, Nicholas Harry Zompolas
  • Patent number: 8476367
    Abstract: A pellet is formed by a method includes, in one embodiment, dispersing up to about 95% by weight of thermoset rubber particles into a carrier resin to form the plastic compound. The carrier resin includes an olefin block copolymer. The method also includes the steps of extruding the plastic compound through a die having at least one die hole to form at least one extrudate filament, cutting the at least one extrudate filament to a predetermined length to form a plurality of pellets, conveying the pellets to a separator/centrifugal dryer in water having a temperature of about 170° F. or greater, and separating the pellets from the water in the separator/centrifugal dryer so that the pellets are substantially dry upon removal from the separator/centrifugal dryer. The resultant pelletized plastic compound has a flex modulus of less than about 20,000 pounds per square inch (psi).
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: July 2, 2013
    Assignee: Spartech Corporation
    Inventor: George D. Howell
  • Patent number: 8411363
    Abstract: A lenticular sheet, in one exemplary embodiment, includes a first surface having at least two portions, an opposing second surface, and a plurality of lenticular lenses formed in the first surface. Each portion of the first surface includes a number of lenticular lenses per centimeter that is different from the number of lenticular lenses per centimeter of an adjacent portion of the first surface.
    Type: Grant
    Filed: October 20, 2009
    Date of Patent: April 2, 2013
    Assignee: Spartech Corporation
    Inventor: Todd R. Niemuth
  • Publication number: 20120097673
    Abstract: A modular container assembly is provided for packaging a plurality of products. The modular container assembly includes a frame and a portable container. The frame includes a plurality of edge portions that define a plurality of openings. The container includes a sidewall that defines a cavity. The container is sealable at a rim portion of the sidewall to retain a product within the cavity. The container is configured to fit within a first opening of the plurality of openings such that the rim portion is removably coupled to a first edge portion of the plurality of edge portions.
    Type: Application
    Filed: October 26, 2010
    Publication date: April 26, 2012
    Applicant: Spartech Corporation
    Inventors: Sandy McDonald, Nicholas Harry Zompolas
  • Patent number: 7874453
    Abstract: A sealed, locked, and reopenable cup and lid assembly comprises a cup, a resilient circular lid, circumferentially spaced and rotationally alignable interrupted portions and at least one tab. The resilient circular lid is sized to be inserted in a mouth of the cup and to fit in a locking groove of the cup. The resilient circular lid is permitted to be removed upon alignment of interrupted portions in the locking groove and a peripheral lip of the circular lid.
    Type: Grant
    Filed: February 16, 2007
    Date of Patent: January 25, 2011
    Assignee: Spartech Corporation
    Inventor: John R. Church
  • Publication number: 20100280152
    Abstract: A thermoformable packaging material, in an exemplary embodiment, includes a thermoplastic composition that includes a polyethylene terephthalate modified with an isophthalic acid co-monomer. The amount of isophthalic acid co-monomer used is sufficient to render the thermoplastic composition RF sealable.
    Type: Application
    Filed: April 29, 2009
    Publication date: November 4, 2010
    Applicant: Spartech Corporation
    Inventor: Phillip S. Barhouse
  • Publication number: 20100195210
    Abstract: A lenticular sheet, in one exemplary embodiment, includes a first surface having at least two portions, an opposing second surface, and a plurality of lenticular lenses formed in the first surface. Each portion of the first surface includes a number of lenticular lenses per centimeter that is different from the number of lenticular lenses per centimeter of an adjacent portion of the first surface.
    Type: Application
    Filed: October 20, 2009
    Publication date: August 5, 2010
    Applicant: SPARTECH CORPORATION
    Inventor: Todd R. Niemuth
  • Patent number: 7609450
    Abstract: A lenticular sheet, in one exemplary embodiment, includes a first surface having at least two portions, an opposing second surface, and a plurality of lenticular lenses formed in the first surface. Each portion of the first surface includes a number of lenticular lenses per centimeter that is different from the number of lenticular lenses per centimeter of an adjacent portion of the first surface.
    Type: Grant
    Filed: March 29, 2007
    Date of Patent: October 27, 2009
    Assignee: Spartech Corporation
    Inventor: Todd R. Niemuth
  • Patent number: 6666526
    Abstract: A wheel and axle assembly in which the wheel carries a metal clip secured within a pocket formed in the wheel. The clip extends into an axial bore formed in the wheel. An axle is fitted into the wheel bore engaging the metal clip to secure the axle against withdrawal or longitudinal movement while permitting rotation of the wheel relative to the axle.
    Type: Grant
    Filed: February 19, 2002
    Date of Patent: December 23, 2003
    Assignee: Spartech Corporation
    Inventor: Steven M. Cummins
  • Patent number: D591173
    Type: Grant
    Filed: December 6, 2007
    Date of Patent: April 28, 2009
    Assignee: Spartech Corporation
    Inventor: John R. Church