Patents Assigned to Spartech Corporation
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Publication number: 20140170344Abstract: 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: ApplicationFiled: February 18, 2013Publication date: June 19, 2014Applicant: SPARTECH CORPORATIONInventors: Pranabes K. Pramanik, Gregory M. Dixon
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Patent number: 8485377Abstract: 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: GrantFiled: October 26, 2010Date of Patent: July 16, 2013Assignee: Spartech CorporationInventors: Sandy McDonald, Nicholas Harry Zompolas
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Patent number: 8476367Abstract: 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: GrantFiled: January 31, 2011Date of Patent: July 2, 2013Assignee: Spartech CorporationInventor: George D. Howell
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Patent number: 8411363Abstract: 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: GrantFiled: October 20, 2009Date of Patent: April 2, 2013Assignee: Spartech CorporationInventor: Todd R. Niemuth
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Publication number: 20120097673Abstract: 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: ApplicationFiled: October 26, 2010Publication date: April 26, 2012Applicant: Spartech CorporationInventors: Sandy McDonald, Nicholas Harry Zompolas
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Patent number: 7874453Abstract: 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: GrantFiled: February 16, 2007Date of Patent: January 25, 2011Assignee: Spartech CorporationInventor: John R. Church
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Publication number: 20100280152Abstract: 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: ApplicationFiled: April 29, 2009Publication date: November 4, 2010Applicant: Spartech CorporationInventor: Phillip S. Barhouse
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Publication number: 20100195210Abstract: 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: ApplicationFiled: October 20, 2009Publication date: August 5, 2010Applicant: SPARTECH CORPORATIONInventor: Todd R. Niemuth
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Patent number: 7609450Abstract: 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: GrantFiled: March 29, 2007Date of Patent: October 27, 2009Assignee: Spartech CorporationInventor: Todd R. Niemuth
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Patent number: 6666526Abstract: 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: GrantFiled: February 19, 2002Date of Patent: December 23, 2003Assignee: Spartech CorporationInventor: Steven M. Cummins
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Patent number: D591173Type: GrantFiled: December 6, 2007Date of Patent: April 28, 2009Assignee: Spartech CorporationInventor: John R. Church