Abstract: The present invention relates to multilayer laminates having controlled directional tearing in both the machine direction (MD) and the transverse direction (TD). It is desirable to have controlled tearing for use in connection with pouches or other packages having a reclose device. The laminate is made up of a biaxially oriented inner layer containing linear low density polyethylene (LLDPE) and having a tensile elongation to break of less than 200% in the MD and less than 150% in the TD, an outer layer having a heat distortion temperature of at least 10° C. higher than the inner layer and a tensile longation to break of less than 200% in the MD and less than 150% in the TD, and an adhesive layer containing an adhesive polymer sandwiched between the inner and outer layers and adhering the two layers to each other.

Abstract: A back-up pad is provided over an anvil surface of a back-up plate, and between the anvil surface and a sealing surface of a sealing die, in an apparatus for forming seals between layers of film material. The back-up pad has a slip layer on one side thereof and a firm polymeric support layer on an opposite side thereof, the slip layer opposing the sealing face of the die so that the layers of film material pass between the sealing die and the back-up pad during seal formation. The polymeric support layer may have a Shore-A hardness of at least 10 at 20 ° C. and a dynamic loss tangent of less than 0.1 from 20 ° C. to 80 ° C. An example of a support layer is a polycarbonate pad, and an example of slip layer is a glass cloth coated with Teflon™. The back-up pad is particularly useful for forming lap seals in relatively thick film materials, such as laminated films having multi-layered films laminated together.

Abstract: A polymeric label comprising a core layer comprising at least about 50% by weight of a linear ethylene alpha-olefin copolymer and at least about 5% by weight of a propylene copolymer; and a first skin layer comprising a propylene copolymer.

Abstract: A multi-layer film has an improved composite structure for providing hermetic seals to packages manufactured in high speed packaging apparatus. The structure of the multi-layer film includes layers A/B/C/D. Skin layer A is formed from polypropylene copolymer with melt flow rate greater than one or linear high density polyethylene with melt index greater than one. Core layer B is formed from polypropylene. Intermediate layer C has the primary function of compliance during sealing, and sealing layer D has the primary function of providing adhesivity to the completed seal.

Abstract: A sealable film comprises:

Abstract: A laminated film structure that includes a primary web having a migratory additive in a first outer layer and a metallocene polyethylene in a second outer layer that can be laminated to a secondary web without treating the surface of the second outer layer with a primer or solvent. The primary web further includes a core substrate layer disposed between the two outer layers that can include a biaxially oriented polypropylene. The laminated film structures have improved bond strength between the primary web and the secondary web.

Abstract: A laminated film structure that includes a primary web having a migratory additive in a first outer layer and a metallocene polyethylene in a second outer layer that can be laminated to a secondary web without treating the surface of the second outer layer with a primer or solvent. The primary web further includes a core substrate layer disposed between the two outer layers that can include a biaxially oriented polypropylene. The laminated film structures have improved bond strength between the primary web and the secondary web.

Abstract: The present invention relates to multilayer film which is heat sealable over a broad temperature range. It is desirable to have a broad sealing temperature range to increase the production of packaging machines. The present invention also relates to multilayer film which provides easy opening and hermetic seals to packages. The film is made up of a core layer comprising linear low density polyethylene (LLDPE) and at least one skin layer having a melting point of at least 10° C. below the core layer melting point.

Abstract: A sealable film comprises: (a) an inner layer comprising an olefin polymer; (b) a sealing layer; and (c) a separable layer positioned between the inner layer and the sealing layer, the separable layer comprising (1) ethylene-propylene block copolymer or (2) a blend of polyethylene and another olefin which is incompatible with the polyethylene, specifically either (i) polypropylene homopolymer or (ii) ethylene-propylene block copolymer. Methods of making the sealable film are described.

Abstract: The present invention is a multi-layer film which has an improved composite structure for providing hermetic seals to packages manufactured in high speed packaging apparatus. The structure of the multi-layer film of the present invention includes a main substrate and a sealant layer. The sealant layer, in turn, includes two components, an intermediate layer which has the primary function of compliance during sealing, and a sealing layer which has the primary function of providing adhesivity to the completed seal. As a result of this invention, high strength hermetic seals can be provided to multi-layer films effectively and efficiently, and hermetic seals are provided with the ability to be peeled open without destruction of several layers of the film.

Abstract: A label facestock structure is described which comprises a polymeric film substrate having on a first surface thereof (A) an adhesive anchor layer and on a second surface thereof (B) an ink base layer, the (A) and (B) layers are selected from the group consisting of:(i) a prime coating having on an external surface a functional coating of an interpolymer of (a) an .alpha.,.beta.