Sealed Air Corporation (US)

The presently disclosed subject matter is directed to a polymeric, multilayer film suitable for use in a variety of applications, including (but not limited to) the manufacture of bioprocessing containers. The disclosed film comprises a sealant layer comprising: (i) one or more ethylene/alpha olefin copolymers with an average density lower than 0.922 g/cc; (ii) one or more polymers with an average density higher than or equal to 0.950 g/cc and selected among ethylene/alpha olefin copolymers and/or ethylene homopolymers; (iii) high molecular weight siloxane polymers; optionally, at least one gas barrier layer and an outer skin layer. The sealant layer of the disclosed films provides for a low blocking effect and for high seal strength. In addition, the surface of the sealant layer is inert and substantially free from migratory surface additives and from metal containing particulate additives, such that, when the film is used for manufacturing bioprocessing containers, cell growth and products harvesting are not affected. A method for manufacturing the film, a bioprocessing container comprising the film and a method for culturing cells in such container are also herein disclosed.

A system includes a source of sheet material and a conversion machine. The conversion machine is configured to receive the sheet material and to form the sheet material into a fill material. The conversion machine further includes a cutting system configured to selectively cut the fill material either partially or completely to form two pieces of the fill material. When the cutting system partially cuts the fill material, uncut portions of the fill material remain between the two pieces of the fill material. When the cutting system completely cuts the fill material, no uncut portions remain between the two pieces of the fill material.

A packaging system includes a conveyance system, a package forming system, and a tracking system. The conveyance system is configured to receive objects and to convey the objects through the packaging system. Spacing between the objects is non-uniform as the objects are received by the conveyance system. The package forming system is configured to feed a packaging material to form a tube of the packaging material and to seal the tube of the packaging material around the objects to form packages of the packaging material around the objects. The tracking system configured to track locations of the objects as the objects are conveyed through the packaging system on the conveyance system. In some cases, the tracking system is configured to track locations of the objects independently of any marks on the packaging material and/or independently of the location of inducting documents placed on the objects.

A system includes a supply of an inflatable web ( 100 ) and a nozzle ( 240 ). The inflatable web includes chambers ( 116 ), an inflation channel ( 112 ), and cross seals ( 114 ) between the inflation channel and the chambers. The inflatable web also includes ports ( 124 ) that pass through the cross seals to permit gas to pass from the inflation channel to the chambers. The nozzle has an outlet ( 242 ) configured to insert gas into the inflation channel as the inflatable web is moved in a downstream direction. The system is configured to feed the inflatable web along a path from the supply and past the nozzle in the downstream direction. The system is configured to hold the supply of the inflatable web with respect to the nozzle such that the cross seals contact the nozzle and rides along a portion of the nozzle as the inflatable web is moved in the downstream direction.

A multilayer film and a pouch made therefrom is disclosed. The film having an ethylene-vinyl alcohol copolymer-based barrier layer and an outer layer made from at least 95 wt % of a branched ethylene copolymer. The branched ethylene copolymer being 50 mol % or more ethylene, 50 mol % or less of a C6 to C8 alpha-olefin comonomer, and at least 0.001 mol % of a remnant of a metal hydrocarbyl chain transfer agent. The film including substrate layers between the barrier layer and each outer layer. The film having low oxygen transmission rate and a low a moisture transmission rate.

A system includes a source of sheet material and a conversion machine. The conversion machine is configured to receive the sheet material and to form the sheet material into a fill material. The conversion machine further includes a cutting system configured to selectively cut the fill material either partially or completely to form two pieces of the fill material. When the cutting system partially cuts the fill material, uncut portions of the fill material remain between the two pieces of the fill material. When the cutting system completely cuts the fill material, no uncut portions remain between the two pieces of the fill material.

An inflator inflates inflatable webs. The inflator includes a web supply holding device that holds a supply of an inflatable web, a first gas moving device having a first inlet for receiving gas and a first outlet for expelling gas, a second gas moving device having a second inlet for receiving gas and a second outlet for expelling gas, and a nozzle. The first outlet is coupled to the second inlet such that gas expelled from the first outlet is received by the second inlet. The nozzle is coupled to the second outlet and inserts gas expelled from the second outlet into the inflatable web to inflate the inflatable web. Parameters of the first and second gas moving devices are selected based on a type of the inflatable web.

A dunnage conversion system ( 100 ) includes a supply area ( 120 ), a dunnage conversion machine ( 110 ), and an arcuate slot ( 130 ). The supply area ( 120 ) is configured to hold a supply of a sheet material ( 122 ). The sheet material ( 122 ) is in a substantially flat configuration in the supply area ( 120 ). The dunnage conversion machine ( 110 ) is configured to pull the sheet material ( 122 ) from the supply area ( 120 ) and to convert the sheet material ( 122 ) into a non-flat configuration. The arcuate slot ( 130 ) is positioned between the supply area ( 120 ) and the dunnage conversion machine ( 110 ) such that the sheet material ( 122 ) is fed through the arcuate slot ( 130 ) as the sheet material ( 122 ) passes along a path from the supply area ( 120 ) to the dunnage conversion machine ( 110 ).

A form-fill-seal system includes a tube feeding system, an end seal carriage, and a computing device. The tube feeding system feeds a tube of flexible material at a first velocity. The computing device controls the end seal carriage to cause an increase in a velocity of the end seal carriage to substantially the first velocity, a start of a dwell time of the end seal mechanism on the tube of flexible material while the velocity of the end seal carriage is at substantially the first velocity, and an increase in the velocity of the end seal carriage to a second velocity during the dwell time. The end seal mechanism cuts a package from the tube during the dwell time. The increase in the velocity of the end seal carriage to the second velocity results in an increased distance of the package from the tube.

A tension-inducing shaft system includes a shaft, two shaft caps, and a biasing mechanism. A bore extends through the shaft between two ends of the shaft. The shaft caps are positioned on the two ends of the shaft. Each shaft cap includes a collar having a size that is larger than the bore, a keyed end, and an anchor. The biasing mechanism is arranged inside the bore and is coupled to the anchors of the shaft caps so that the biasing mechanism exerts inward forces on the shaft cap. The keyed ends of the shaft caps can be coupled to a housing so that the shaft caps do not rotate with respect to the housing. The shaft is configured to rotate with respect to the shaft caps such that, when the keyed ends are coupled to the housing, the shaft is capable of rotating with respect to the housing.