Patent application number | Description | Published |
20090233025 | Multi-Seal Method Capable Structures for Gusseted Flexible Containers - Flexible films, packages, and methods of making the same are provided where the film is capable of being sealed to itself or to other films by more than one sealing method, including thermal sealing and ultrasonic sealing. In particular, a package includes at least three multilayer films sealed together with an ultrasonic seal, where the outer layers remain intact and do not contain visible perforations at the ultrasonic seal. The multilayer films include at least a sealant layer and an outer layer, and may be separate pieces of multilayer films or one multilayer film that has been folded. A method for sealing a film includes the steps of providing a multilayer film having at least a sealant layer and an outer layer, folding the multilayer film to provide a folded film including at least three layers of multilayer film, and applying mechanical oscillations to seal the folded film. | 09-17-2009 |
20090297814 | Innerliner With Cross-Linked Eva - A multilayer film comprising, a cross-linked ethylene copolymer layer such as ethylene vinyl acetate layer, an HDPE layer, and a sealant layer, for use, for example, to form a package for dry food products. The multilayer film has a thickness of less than about 2.0 mils, such as between 1-1.5 mils and a tear strength in the machine direction of greater than 40 grams. | 12-03-2009 |
20100151218 | INNERLINER WITH NYLON SKIN LAYER - A multilayer film is provided that comprises a nylon skin layer, a buried high density polyethylene layer, and a sealant layer, for use, for example, to form a package for dry food products. The multilayer film has a thickness of less than about 2.0 mils, such as between 0.8-1.7 mils, a moisture vapor transmission rate of less than about 0.30 g/100 in | 06-17-2010 |
20110274919 | High Release Nip Roll Assembly - Disclosed herein is a high release nip roll assembly comprising a nip roll with a covering comprising a high release material. The release properties of the nip roll material can permit intermittent contact without the coating adhering to the surface of the roller and wrapping the nip. Also disclosed is a high release nip roll belt made of a high release material on the top and bottom surfaces of the belt. The belt can be positioned at each end of a nip roll so that areas of the nip roll typically vulnerable to molten thermoplastic material contact are protected by a belt. Also disclosed is a belt making apparatus. Also disclosed is a frame assembly for moving a belt longitudinally along a nip roll. Also disclosed is a rope guide assembly for threading a belt in relation to a nip roll and at least at least one belt roller. Also disclosed is a jig for joining a leading section of a belt and a trailing section of a belt. | 11-10-2011 |