Sealed Air Corporation (us)

Sealed Air Corporation

Robert J O'Dowd

Laurence B Sperry

Charles P Kannankeril

Michael Metta

Joseph E Owensby

Andrew W Moehlenbrock

Thomas P Orsini

Russell T Christman

Howard Conner

Michael Kalinowski

Robert Simonelli

Mark Garceau

Steven Edward Maston

Christof Hammerschmidt

Timothy Theodore Oberle

Ricky D McDaniel

Zi K Chan

Eva Chu

Edward Ackershoek

Chitai Carey Yang

Stephan Roesel

Ian M Donegan

Howard Dean Conner

Robert J Simonelli

Steven E Maston

Devin Ridgeway

Mark Ryan Garceau

An inflatable web includes an inflation zone, a first inflatable panel in fluid communication with the inflation zone, and a second inflatable panel in fluid communication with the inflation zone. The first inflatable panel includes a first sheet juxtaposed on a second sheet. The first and second sheets are sealed together to form inflatable chambers. The second inflatable panel include a third sheet juxtaposed on a fourth sheet. The third and fourth sheets are sealed together to form inflatable chambers. The inflatable film is configured to be inflated by an inflation and sealing machine configured to direct gas into the inflatable chambers of the first and second inflatable panels via the inflation zone and to individually seal the inflatable chambers of the first and second inflatable panels.

Inflatable cellular web with multiple inflatable panels

An inflatable pouch includes a bladder formed from an inflatable web and an outer skin formed from a film. The bladder includes a bladder pouch that includes a bottom portion at a folded edge of the inflatable web, front and back portions on either side of the folded edge, and sides where the front and back portions are sealed to each other. The outer skin includes an outer skin pouch that includes a bottom portion at a folded edge of the film, front and back portions on either side of the folded edge, and sides where the front and back portions are attached to each other. The bladder is attached to the outer skin at a tack area such that the sides of the bladder pouch and the outer skin pouch are not directly attached to the sides of the outer skin pouch.

Inflatable pouches with reduced exterior distortions

A cushion package can be formed around an object. The object can be removed from and reinserted into the cushion package. The cushion package includes a cushion material () having a longitudinal length and two longitudinal edges (). The two longitudinal edges () of the cushion material are folded into an overlapping position to form a tube of the cushion material. The cushion package includes first and second transverse seals () in the tube of the cushion material. The first and second transverse seals () respectively form first and second ends of the cushion package. Each of the first transverse seal and the second transverse seal () seals the cushion material with the two longitudinal edges () in the overlapping position. The two longitudinal edges () of the cushion material are uncoupled between the first transverse seal and the second transverse seal ().

Method and system for forming cushion packages for object protection

The cellular cushioning article comprises a thermoformed film bonded to a second film, with the thermoformed film having thermoformed regions separated by a land area. The thermoformed film has a combination of (i) a layer containing a high melt point polymer and (ii) thermoformed regions exhibit a high average maximum birefringence. The high birefringence corresponds with high stress on the polymer chains. The combination results in cells of substantially increased burst strength. The cellular cushioning article can provide higher burst strength per mil of film thickness, or can be produced using less plastic than prior art cellular cushioning articles, while maintaining the same or comparable burst strength. Also disclosed is a process for making the cellular cushioning article.

Air cellular cushioning article of enhanced strength per unit weight of film, and process for making same

Heat-sealed articles formed from polymer film portions heated-sealed together in selected areas forming a heat seal pattern, by passing the film portions together in a partial wrap about a heated sealing roller having a cylindrical outer surface that supports the film portions in a smooth cylindrical configuration about the roll. The cylindrical outer surface of the roller comprises a first surface portion defining a configuration corresponding to the heat seal pattern and formed of a first material having a first thermal conductivity, and a second surface portion formed of a second material having a second thermal conductivity lower than the first thermal conductivity such that only areas of the film portions in contact with the first surface portion are heat sealed together, the first and second surface portions being substantially flush with each other at the outer surface.

Process and apparatus for making heat-sealed articles

The invention is a rotatable cylindrical roll for heat sealing heat sealable materials that includes a heating zone for sealing the material and a cooling zone for supporting the newly formed seal. The device comprises a conductive zone and a resistive zone that are in electrical communication. The resistive zone comprises a cylindrical member having a circumferential band of resistive material disposed on its surface. The conductive zone comprises a cylindrical member having a plurality of conductive strips extending laterally across its surface that are in electrical communication with the resistive band. Current is applied via a brush to the conductive strips. Current flows from the conductive strips into the resistive band and exits through a conductive strip that is in contact with a ground. Current path through the resistive band defines the heating zone, and the cooling zone is defined by area of the resistant band outside the heating zone.

Rotary impulse sealer

An inflatable cushioning article is made from a multilayer film having a seal layer, a gas barrier layer, and a tie layer adhering the seal layer to the gas barrier layer. The cushioning article has a plurality of inflatable chambers, with each of the chambers having a plurality of cells connected in series to one another via inflation channels. Although the inflatable article can be made from relatively thin films, the article exhibits a relatively high burst pressure and can be inflated to, for example 3 psi, and withstand conditions such as 140&#xb0; F. and high altitude, without film delamination, seal failure, or film rupture. Preferably, the tie layer comprises an anhydride modified polyolefin having an anhydride content of at least 150 ppm.

High strength high gas barrier cellular cushioning product

An inflation device for introducing gas into inflatable webs of the type comprising a pair of juxtaposed film plies and a pair of opposing film edges, the inflation device including a body having a longitudinal dimension, a transverse dimension, and a web-contact region in which the inflation device makes contact with opposing surfaces of the juxtaposed film plies as gas is introduced into the inflatable web, the body having at least one increase in peripheral transverse surface distance along the longitudinal dimension of the body, and a passage within the body through which gas may flow, the passage having a termination point within the web-contact region to form an inflation zone therein.

Inflation device for forming inflated containers

An inflatable cushioning article is made by a process of extruding two multilayer films (or extruding one film which is either annular or folded over) each having (a) a seal layer, (b) a tie layer containing an anhydride modified olefin polymer containing anhydride at a level of at least 150 ppm, based on the weight of the modified olefin polymer, and (c) an oxygen barrier layer comprising crystalline polyamide, crystalline polyester, ethylene/vinyl alcohol copolymer, polyacrylonitrile, and/or crystalline polycycloolefin. Selected portions of the films are heat sealed to one another in a selected area providing a heat seal pattern which leaves inflatable chambers between the films, whereby an inflatable cellular cushioning article is produced. At some point after extrusion, at least one of the multilayer films are aged for a time and at a temperature in accordance with at least one member selected from the group consisting of: (i) 141&#xb0; F. to 250&#xb0; F. for a period of at least 1 second; (ii) 101&#xb0; F. to 140&#xb0; F. for a period of at least 10 minutes; (iii) 61&#xb0; F. to 100&#xb0; F. for a period of at least 1 hour; and (iv) 30&#xb0; F. to 60&#xb0; F. for a period of at least 1 day. After aging, the cellular cushioning article is inflated. Preferably, the article is inflated to an internal pressure of at least 1.5 psi.

Process for making and aging high strength high gas barrier cellular cushioning product

Growing community of inventors

Wesley Hills, NY, United States of America

Robert J O'Dowd