Patents Assigned to Pactiv Corporation
  • Patent number: 10220986
    Abstract: Container includes a base, a cover, and a pull tab. The base has a bottom, a side wall extending upwardly from the bottom, and a rim at an upper edge portion of the side wall. The cover has a closed condition and an open condition and an outer edge portion interengageable with the rim of the base when the cover is in the closed condition. The pull tab extends outwardly from at least one of the base or the cover. The pull tab having a deformable formation to be deformed when the cover is moved from the closed condition to the open condition, the pull tab remaining attached to the at least one of the base or the cover when moved from the closed condition to the open condition. Additional embodiments relate to a tamper evident feature for a container, and a method for containing product in a container.
    Type: Grant
    Filed: March 6, 2009
    Date of Patent: March 5, 2019
    Assignee: PACTIV CORPORATION
    Inventors: Frank A. Petlak, Scott W. Follansbee, H. Bernard Kirkland, Craig E. Cappel
  • Patent number: 8334223
    Abstract: A protective drainage wrap includes a mesh and a coating applied to the mesh. The coating is applied to the mesh to form a plurality of interstices, the interstices being configured to facilitate transfer of water vapor therethrough. The mesh includes material extending in a first direction and in a second direction. The material in the first direction includes a polyolefin, polyester, nylon or combinations thereof and has a first thickness. The material in the second direction includes a polyolefin, polyester, nylon or combinations thereof and has a second thickness. The second thickness is at least about twice the first thickness so as to assist in providing drainage for moisture build-up. The material in the second direction can be yarn. The coating includes a polyolefin, polyester, nylon or combinations thereof. A process for the preparation of the protective drainage wrap is provided.
    Type: Grant
    Filed: August 26, 2005
    Date of Patent: December 18, 2012
    Assignee: Pactiv Corporation
    Inventor: John W. Lubker, II
  • Publication number: 20120234717
    Abstract: Tray includes a first base portion having an upper surface defining a first tier and a second portion having an upper surface defining a second tier. The first tier and the second tier are separated by a height. The upper surface of the first portion and the upper surface of the second portion each have a plurality of spaced-apart wells defined therein. Each well is sized and shaped to receive a food item and has an upper edge with an engagement recess formed therein. The engagement recess is sized to allow a food item within the well to be gripped for removal. The tray can further include a trapping feature to secure a lid, and thus form a container.
    Type: Application
    Filed: June 8, 2011
    Publication date: September 20, 2012
    Applicant: Pactiv Corporation
    Inventors: H. Bernard Kirkland, John Kerry Hobbs
  • Patent number: 8220996
    Abstract: Polymeric bag includes first and second opposing body panels attached to each other along a pair of opposing sides and a bottom bridging the sides, a reclosable fastener extending along a mouth formed opposite the bottom, a pressure relief opening defined in the first body panel, and a pressure relief valve attached to the first body panel. The valve includes a cover member to cover the opening. The cover member includes an upper layer and a lower layer, the lower layer including a first portion attached to the body panel and a second portion contiguous with the first portion but not attached to the body panel. The upper layer has a first end hingedly connected to the second portion of the lower layer on a first side of the pressure relief opening, and the upper layer has a second end fixedly attached on a second side of the pressure relief opening opposite the first side with the upper layer covering the pressure relief opening.
    Type: Grant
    Filed: April 20, 2010
    Date of Patent: July 17, 2012
    Assignee: Pactiv Corporation
    Inventors: James S. Blythe, Wiliam P. Belias, Toby R. Thomas
  • Patent number: 8104635
    Abstract: A base for a food container includes a pattern of rib units in a side wall of the container. The rib units are formed at multiple angles and depths to provide strength to the side wall. The base also includes a bottom with ribs of alternating heights and angles that provide strength to the bottom.
    Type: Grant
    Filed: June 8, 2007
    Date of Patent: January 31, 2012
    Assignee: Pactiv Corporation
    Inventors: Thomas J. Hayes, James N. Gomoll
  • Patent number: 8092877
    Abstract: The present invention relates to polymer structures such as thermoplastic films having improved aroma barrier properties and methods for making the polymeric structures, which may be in the form of a resealable container. Aroma barrier is improved by incorporating a barrier layer of polymeric material including at least about 10 mole percent of polymerized cyclo-olefin moieties.
    Type: Grant
    Filed: April 1, 2003
    Date of Patent: January 10, 2012
    Assignees: Topas Advanced Polymers, Inc., Pactiv Corporation
    Inventors: Randy D. Jester, Barbara Canale-Schmidt, William P. Belias, Paul N. Chen
  • Patent number: 8087826
    Abstract: Rolling action reclosable fastener comprises a male track including a male profile, a female track including a female profile, and a slider disposed on the male and female tracks to matingly engage the male profile and the female profile. The slider includes a back and a pair of sidewall depending therefrom. The slider also includes a separator finger depending from the back between the pair of sidewalls and shaped along its length to first press together a bottom of the male and female profiles and then roll the profiles closed toward a top thereof as the slider moves toward the closed condition. The male profile comprises a base and a rib with a hook portion having an inwardly-directed surface including a projection defining an engagement surface. The female profile comprises a base and a first flange having an inwardly-directed surface including a projection defining an engaging surface.
    Type: Grant
    Filed: June 21, 2011
    Date of Patent: January 3, 2012
    Assignee: Pactiv Corporation
    Inventors: James S. Blythe, Steven P. Long
  • Patent number: 8083887
    Abstract: A method of forming a container (100) includes heating two webs of material and indexing the webs into a vacuum thermoformer (40) which forms first (220) and second trays (110) simultaneously, wherein the second tray is disposed within a space of the first tray to define a reservoir (300) therebetween. A portion of the first tray is brought into contact with a flange portion of the second tray, and joined by a heat seal within the vacuum thermoformer. A punch device within the vacuum thermoformer perforates a drain aperture (117) in a central region of the bottom of the second tray, such that the drain aperture is in fluid communication with the reservoir. The cut-out section is adhered to the bottom of the first tray to eliminate the presence of any scrap material. The joined first and second tray is indexed out of the vacuum thermoformer and trimmed to separate an assembled container from the web supply.
    Type: Grant
    Filed: May 14, 2007
    Date of Patent: December 27, 2011
    Assignee: Pactiv Corporation
    Inventors: Jon Michael LaRue, Craig Edward Cappel, Frank Andrew Petlak, Marshall Van Domelen
  • Patent number: 8079945
    Abstract: A blown-film process for making a fiber-reinforced film comprises providing and melting at least one thermoplastic resin. The at least one thermoplastic resin is extruded through an extension die to form a film bubble. A plurality of fibers is introduced inside of the film bubble. The fibers are distributed inside of the film bubble. The film bubble is collapsed after introducing the plurality of fibers so as to form a fiber-reinforced film. The fiber-reinforced film has a first thermoplastic layer, a second thermoplastic layer, and a plurality of fibers dispersed therebetween. The film may be formed in a bag.
    Type: Grant
    Filed: February 10, 2004
    Date of Patent: December 20, 2011
    Assignee: Pactiv Corporation
    Inventors: Brent L. Hild, William P. Belias, Steven F. Nielsen
  • Patent number: 8026291
    Abstract: Expanded and extruded polyolefin foams are obtained using environmentally benign non-VOC methyl formate as a blowing agent. The blowing agent can be a blend further including at least one co-blowing agent, preferably an environmentally friendly species (e.g., non-VOC), which is either a physical co-blowing agent (e.g. an inorganic agent, a hydrocarbon, a halogenated hydrocarbon, a hydrocarbon with polar, functional group(s) or any combination thereof), or a chemical co-blowing agent, or combinations thereof. The blowing agent blend can include any combination of methyl formate and one or more co-blowing agents. The polymer foam can include polyethylene, polypropylene or a combination thereof. The methyl formate-based blowing agent blends produce stable foams for various applications, including containers, packaging systems, as well as for insulation and protective cushioning. Processes for the preparation of such foams are also provided.
    Type: Grant
    Filed: February 21, 2007
    Date of Patent: September 27, 2011
    Assignee: Pactiv Corporation
    Inventors: Y. Paul Handa, Gary A. Francis
  • Publication number: 20110217492
    Abstract: Various embodiments of the apparatus and methods are configured to make containers such as disposable reinforced cups using reinforcing members configured to be respectively attached to cups. The apparatus and method of various embodiments of the present disclosure sequentially heat different or selective portions of the heat activated adhesive on the reinforcing member at multiple sequential stages, steps or times to attach the reinforcing member to the container.
    Type: Application
    Filed: March 4, 2010
    Publication date: September 8, 2011
    Applicant: Pactiv Corporation
    Inventors: Dimitri Stamatiou, Shawn L. Petera, Evan L. Ryan
  • Patent number: 8012554
    Abstract: Bags or liners having incorporated therein an effective amount of odor management agents including a counteractant agent, a neutralizing agent and optionally, a masking agent, whereby the odor management agent imparts no perceptible scent to the bags or liners, such that the bags or liners are substantially free of fragrance while the odor management agent reduces malodor emanating from products disposed within the bag. Further, the invention is drawn to web materials for use in forming the bags or liners having odor management agents. The odor management agent is disposed within the bag or dispersed substantially uniformly throughout the web.
    Type: Grant
    Filed: September 12, 2007
    Date of Patent: September 6, 2011
    Assignee: Pactiv Corporation
    Inventors: Lindsay Shelley, Chieh-Chun Chau, Wayne J. Moras, Harley E. Erb, IV
  • Publication number: 20110173910
    Abstract: Composite roofing boards and methods for installing a composite roofing board are presented herein. In one embodiment, the roofing board comprises at least nine layers: two outer polymeric layers; two adhesive layers disposed between the two outer polymeric layers; two inner polymeric layers disposed between the two adhesive layers; and a substrate layer disposed between the two inner polymeric layers. A polymeric adhesive, such as an acrylate-polymer adhesive, is preformed on an outer surface of the first and/or second outer polymeric layer. A removable release liner, such as a siliconized polyester film, covers the polymeric adhesive.
    Type: Application
    Filed: January 21, 2010
    Publication date: July 21, 2011
    Applicant: Pactiv Corporation
    Inventors: Kenneth Franklin, William G. McDonald
  • Patent number: 7977397
    Abstract: The present invention relates to compositions comprising blends of alkenyl aromatic polymers such as styrenic polymers (i.e. PS and HIPS) and bio-based or biodegradable polymers (i.e. PLA, PGA, PHA, PBS, PCL) compatibilized with styrene-based copolymers (i.e. styrene-ethylene-butylene-styrene (SEBS) block copolymers, maleated SEBS, styrene-maleic anhydride (SMA) copolymer, styrene-methyl methacrylate (SMMA) copolymer) or a mixture of two or more styrene-based copolymers such as SEBS and SMA. These novel compositions can be extruded and thermoformed to produce very low density food service and consumer foam articles such as plates, hinged lid containers, trays, bowls, and egg cartons with good mechanical properties.
    Type: Grant
    Filed: March 14, 2008
    Date of Patent: July 12, 2011
    Assignee: Pactiv Corporation
    Inventors: Yunwa Wilson Cheung, David V. Dobreski, Richard Turner, Mark Wheeler, Y. Paul Handa
  • Patent number: 7946004
    Abstract: A fastener for a plastic bag includes first and second mutually engageable track portions and a slider for engaging and disengaging the track portions. In a preferred embodiment, the slider includes a core portion and an end portion. The core portion is made of a first material having a first preselected material property. The end portion is made of a second material having a second preselected material property and is arranged at opposing ends of the slider.
    Type: Grant
    Filed: December 20, 2006
    Date of Patent: May 24, 2011
    Assignee: Pactiv Corporation
    Inventors: David P. Cameron, Stephen A. Meli
  • Patent number: D638704
    Type: Grant
    Filed: December 10, 2010
    Date of Patent: May 31, 2011
    Assignee: Pactiv Corporation
    Inventors: Frank A. Petlak, H. Bernard Kirkland, John Kerry Hobbs
  • Patent number: D644103
    Type: Grant
    Filed: April 26, 2010
    Date of Patent: August 30, 2011
    Assignee: Pactiv Corporation
    Inventor: Chadd R. Chatterton
  • Patent number: D649396
    Type: Grant
    Filed: April 30, 2010
    Date of Patent: November 29, 2011
    Assignee: Pactiv Corporation
    Inventors: Kimberlee M. Wilkens, Robert W. Hollis, Matthew W. Cowling, John D. O'Connor, Evan L. Ryan, Megan E. De Masi
  • Patent number: D649397
    Type: Grant
    Filed: April 30, 2010
    Date of Patent: November 29, 2011
    Assignee: Pactiv Corporation
    Inventors: Kimberlee M. Wilkens, Robert W. Hollis, Matthew W. Cowling, John D. O'Connor, Evan L. Ryan, Megan E. De Masi
  • Patent number: D653536
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: February 7, 2012
    Assignee: Pactiv Corporation
    Inventor: Mark R. Gartz