Patents Assigned to Sealed Air Corporation
  • Patent number: 6872757
    Abstract: An extruded thin sheet foam is disclosed prepared from a polyolefin resin in which the blowing agent comprises a blend of from about 1 to 25% by weight of carbon dioxide and the balance of C3 to C4 VOCs. Thin foam sheets produced with the blowing agent age about twice as fast as foams prepared with VOCs, are remarkably stable, and can be produced at high throughputs.
    Type: Grant
    Filed: June 4, 2003
    Date of Patent: March 29, 2005
    Assignee: Sealed Air Corporation
    Inventors: Shau-Tarng Lee, Natarajan S. Ramesh, James Baker
  • Patent number: 6862868
    Abstract: A system for heating and dispensing foam-in-bag packaging bags comprises a housing that rotatably supports a roll of a continuous web of interconnected foam-in-bag packaging bags, and at least one heater for heating bags to an elevated temperature prior to the bags being dispensed from the housing. A heated bag is dispensed and is detached from the web, and is then manipulated to mix foam precursor chemicals contained in separate compartments in the bag to begin a foam-forming reaction in the bag.
    Type: Grant
    Filed: December 13, 2002
    Date of Patent: March 8, 2005
    Assignee: Sealed Air Corporation (US)
    Inventors: Laurence B. Sperry, Eric Kane, Jesse Drake, Anthony Davlin
  • Publication number: 20050031832
    Abstract: Abstract of the Disclosure There is provides a multi-layer conductive/insulation pad is provided having a first polymer layer, a conductive layer such as a thin foil of metal or a metallized thermoplastic film laminated to the first polymer layer, a second polymer layer laminated to the side of the conductive layer opposite the side of the first polymer layer, and a first bubble wrap layer. The first bubble wrap layer is laminated to the side of the second polymer film opposite the conductive layer. Optionally, a protective heavy-duty polymer layer is laminated to the first bubble wrap layer on the opposite side of the second polymer layer. In another embodiment the multi-layer construction of pad of the first embodiment has added thereto a third polymer layer laminated to the side opposite the first layer of bubble wrap and a second layer of bubble wrap laminated to the third polymer layer on the side opposite the first bubble wrap.
    Type: Application
    Filed: August 8, 2003
    Publication date: February 10, 2005
    Applicant: Sealed Air Corporation (US)
    Inventors: Charles Kannankeril, Dale Tokarski
  • Patent number: 6852391
    Abstract: A composite material wherein one or more backing materials are disposed in generally contiguous relation to an insulating material. Methods for forming composite materials comprising securing one or more backing materials to an insulating material such that the backing materials are in generally contiguous relation to the insulating material. Methods for using the composite materials of the present invention wherein a structure is wrapped with a composite material of the present invention.
    Type: Grant
    Filed: November 1, 2001
    Date of Patent: February 8, 2005
    Assignee: Sealed Air Corporation (US)
    Inventor: Charles Kannankeril
  • Patent number: 6820835
    Abstract: A device for rotating a web material roll supported on a reel shaft having a pair of ends. The rotating device includes a female drive member coupled to one end of the reel shaft and defining an opening having a non-circular perimeter, such as a square opening. Also included is a male drive device having a rotatably powered drive shaft having an end that is congruent to the non-circular perimeter of the opening in the female drive member. The non-circular perimeter allows the reel shaft, and web material roll, to be positively rotated during unwinding. A telescoping assembly of the male drive device is capable of extending the drive shaft into the opening so as to allow co-rotation of the shaft and female member. An optional roll supporting cart may be employed to rotatably support the web material roll when aligning the male and female drive members.
    Type: Grant
    Filed: December 2, 2002
    Date of Patent: November 23, 2004
    Assignee: Sealed Air Corporation
    Inventors: Vinny Cavaliere, Alex Shafir, Tim Dennison
  • Publication number: 20040229030
    Abstract: There is provided a multi-layered foamed article. The foam article has a layer of foam material on either side of an inner peel layer disposed roughly in the middle of the foam. The portion of the foam in closest proximity to the peel layer is subjected to the greatest amount of heat during extrusion forming mostly large open cell foam. The foam near the surface of the multiplayer foam article is cooled by the atmosphere or contact with cooling surfaces and comprises mostly small closed-cell foam. There is also provided a method for making a multi-layer foamed article by co-extruding an inner peel layer sandwiched between two expanded layers of a foam material. Each of the expanded foam layers on either side of the peel layer of the article is easily peeled or stripped from the peel inner layer and the multi-layer article is converted into a foamed article with absorbing characteristics on one side and non-absorbing characteristics on the other side.
    Type: Application
    Filed: May 12, 2003
    Publication date: November 18, 2004
    Applicant: Sealed Air Corporation (U.S.)
    Inventor: Joseph E. Owensby
  • Patent number: 6811059
    Abstract: A fluid dispenser generally includes a housing and a valving rod disposed in and movable within the housing, the valving rod including a central bore, at least one inlet for receiving a cleaning fluid composed of a solvent and a gas, and one or more outlet ports in fluid communication with the bore, wherein the outlet ports are capable of directing cleaning fluid radially outwards from the bore and against an interior surface of the dispenser to facilitate the removal of at least a portion of any fluid product or derivatives thereof that may be in adherence with such interior surface.
    Type: Grant
    Filed: February 24, 2003
    Date of Patent: November 2, 2004
    Assignee: Sealed Air Corporation (US)
    Inventors: Vincent A. Piucci, Jr., Charles R. Sperry, Walter C. Sadakierski, Suzanne M. Scott
  • Patent number: 6809125
    Abstract: A foam and method for making such foam includes a blend of a low density polyethylene and a higher density ethylene polymer. The ethylene polymer has a density ranging from greater than 0.94 to about 0.97 grams/cubic centimeter and a melt flow index of greater than 10 g/10 minutes, and may include at least one member selected from ethylene/alpha-olefin copolymer, ethylene homopolymer, and blends thereof.
    Type: Grant
    Filed: June 2, 2000
    Date of Patent: October 26, 2004
    Assignee: Sealed Air Corporation (US)
    Inventors: Shau-Tarng Lee, Natarajan S. Ramesh
  • Patent number: 6804933
    Abstract: An apparatus for forming inflated containers generally includes a mechanism that conveys a web of film along a path of travel, the film web including one or more pre-formed flexible containers; an inflation assembly positioned adjacent the travel path to direct gas into the containers, thereby forming inflated containers; and a device for sealing closed each inflated container. Various improvements for more reliably and consistently inflating the containers are also disclosed.
    Type: Grant
    Filed: January 17, 2003
    Date of Patent: October 19, 2004
    Assignee: Sealed Air Corporation (US)
    Inventors: Charles R. Sperry, Suzanne Scott
  • Publication number: 20040197544
    Abstract: Flexible sheet materials having a foam layer and a film layer of polymer materials, at least one of the layers being formed from a filled polymer resin composition containing filler material comprising 30% to 65% by weight of the composition. The filled resin composition includes an ethylene copolymer such as ethylene vinyl acetate and may include other polymers such as polyethylene. The film layer provides a vapor barrier function. The layer having the filler provides a sound transmission loss. A preferred embodiment of an underlayment has a filler resin film layer of 6 to 30 mils thickness and a polymer foam layer of 75 mils thickness, the underlayment providing a sound transmission loss of at least about 2.5 dB at 1000 Hz.
    Type: Application
    Filed: April 22, 2004
    Publication date: October 7, 2004
    Applicant: Sealed Air Corporation
    Inventors: Natarajan S. Ramesh, Richard Freundlich, Parimal M. Vadhar, Rudy Nwana
  • Patent number: 6800162
    Abstract: An integrated process for making an inflatable laminated article comprises extruding a first film and a second film, followed by cooling the first film and the second film so that the films will not fuse to one another upon contact with each other. The films are then brought into contact with one another, and selected portions of one or both films are heated so that the films are heat sealed to one another in a selected area having a desired pattern. The unsealed area between the film provides inflatable chambers between the first film and the second film. An alternative process utilizes a film tubing in lay-flat configuration to produce a laminated inflatable article.
    Type: Grant
    Filed: August 22, 2001
    Date of Patent: October 5, 2004
    Assignee: Sealed Air Corporation (US)
    Inventors: Charles Kannankeril, Mike Metta, Bob O'Dowd
  • Patent number: 6773798
    Abstract: A composite structure, which generally includes: a. a foam sheet comprising polyolefin; and b. a coating disposed on at least one surface of the polyolefin foam sheet, the coating comprising at least one member selected from ethylene/propylene rubber, homogeneous ethylene/alpha-olefin copolymer, ethylene/acrylic acid copolymer, ethylene/vinyl acetate copolymer, and blends of the foregoing.
    Type: Grant
    Filed: April 4, 2001
    Date of Patent: August 10, 2004
    Assignee: Sealed Air Corporation (US)
    Inventor: Natarajan S. Ramesh
  • Patent number: 6770683
    Abstract: A foam, comprising a blend of (a) from 0.1 to 4.9 weight percent ethylene/styrene interpolymer; and (b) from 95.1 to 99.9 weight percent polyethylene homopolymer or copolymer.
    Type: Grant
    Filed: February 22, 2002
    Date of Patent: August 3, 2004
    Assignee: Sealed Air Corporation (US)
    Inventors: Natarajan S. Ramesh, Thomas Greco
  • Patent number: 6770342
    Abstract: A multi-layer gas- and odour-barrier film comprising a gas- and odor-barrier layer a) and at least one outer layer b) comprising a blend of an ethylene-vinyl acetate copolymer, an ethylene-alkyl-acrylate or alkyl-methacrylate copolymer and from about 1 to about 15% by weight on the overall weight of the blend of a silicone elastomer.
    Type: Grant
    Filed: December 19, 2001
    Date of Patent: August 3, 2004
    Assignee: Sealed Air Corporation
    Inventor: Livio Buongiorno
  • Patent number: 6764756
    Abstract: A composite structure, which generally includes: a. a foam sheet comprising polyolefin; and b. a coating disposed on at least one surface of the polyolefin foam sheet, the coating comprising at least one member selected from the group consisting of ethylene/propylene rubber, homogeneous ethylene/alpha-olefin copolymer, and ethylene/acrylic acid copolymer.
    Type: Grant
    Filed: December 23, 1999
    Date of Patent: July 20, 2004
    Assignee: Sealed Air Corporation (US)
    Inventor: Natarajan S. Ramesh
  • Publication number: 20040137210
    Abstract: The invention is a composite pad that is particularly useful in a horse trailer, exercise room, playroom, or the like. The pad has a moisture impermeable and scuff resistant outer skin layer, a cushioning layer, an impact absorbing layer, and a backing layer.
    Type: Application
    Filed: January 14, 2003
    Publication date: July 15, 2004
    Applicant: Sealed Air Corporation (US)
    Inventors: Randy Ochoa, Larry West, Natarajan S. Ramesh
  • Publication number: 20040137212
    Abstract: The invention is a composite mat that is useful in horse trailers, assembly-line settings, specialty packaging, or the like. The mat has a force distributing upper layer and an impact absorbing layer disposed below the force distributing layer.
    Type: Application
    Filed: January 14, 2003
    Publication date: July 15, 2004
    Applicant: Sealed Air Corporation (US)
    Inventors: Randy Ochoa, Larry West, Natarajan S. Ramesh
  • Publication number: 20040138322
    Abstract: An expanded cellular ethylenic polymer product is provided from an irradiated, noncross-linked linear ethylenic polymer. Linear ethylenic polymers can be irradiated at ambient conditions sufficient to introduce branching in the polymer in the absence of detectable cross-linking as indicated by the absence of gels. The irradiated linear ethylenic polymer is compatible with highly branched low density polyethylene and, when mixed therewith, produces a resin having a single broad based melting temperature range as determined by direct scanning calorimetry, which indicates that the polymers in the mixture have similar crystallization behavior suitable for producing low density foams by extrusion foaming. The linear polymers can be obtained from recycled shrink wrap film. Low densities of from 0.7 to less than 4 pcf can be achieved. The foams typically have improved tear resistance as compared to previous products prepared from low density polyethylene, at comparable low densities.
    Type: Application
    Filed: December 22, 2003
    Publication date: July 15, 2004
    Applicant: Sealed Air Corporation (U.S.)
    Inventors: Nelson E. Malwitz, Natarajan S. Ramesh, Shau-Tarng Lee
  • Publication number: 20040126560
    Abstract: A thick-sheet foam laminate and a method of making the foam laminate comprising at least two polyethylene foam layers laminated together by heat adhesion, wherein at least one of the layers has a thickness of ¾-inch and greater.
    Type: Application
    Filed: December 27, 2002
    Publication date: July 1, 2004
    Applicant: Sealed Air Corporation (US)
    Inventors: Maurizio Brandolini, Derek Hargreaves, Natarajan S. Ramesh, Battista Casula, Eric Grills, Lloyd George
  • Publication number: 20040120611
    Abstract: A metallic laminated gusseted insulated bag includes a front and rear wall each having two lateral edges, a top edge, and a bottom edge; first and second side walls; a bottom member; and a means for hermetically closing the bag; wherein the front and rear walls are joined along their respective lateral edges to the first and second side walls; either or both of the side walls and bottom member are gusseted; and the front and rear walls are joined along their respective bottom edges to the bottom member; and the front and rear walls each include an outer ply including a metallic foil or metallic coated web, and an inner ply having an inner and outer surface, including a thermal insulating layer; the metallic foil or metallic coated web being adhered to the outer surface of the inner ply.
    Type: Application
    Filed: December 20, 2002
    Publication date: June 24, 2004
    Applicant: Sealed Air Corporation
    Inventors: Charles Kannankeril, Atul Arora, Dale Wormwood