Embodiments of a polyethylene composition are provided, which may include a first polyethylene fraction comprising at least one peak in a temperature range of from 35° C. to 70° C. in an elution profile via improved comonomer composition distribution (iCCD) analysis method, where a first polyethylene area fraction is an area in the elution profile from 35° C. to 70° C., and where the first polyethylene fraction area comprises from 25% to 65% of the total area of the elution profile; and a second polyethylene fraction comprising at least one peak in a temperature range of from 85° C. to 120° C. in the elution profile, where a second polyethylene area fraction is an area in the elution profile from 85° C. to 120° C., and where the second polyethylene fraction area comprises at least 20% of the total area of the elution profile.

The invention relates to a film comprising at least one first layer consisting of a heterophasic propylene copolymer composition comprising a heterophasic propylene copolymer, wherein the heterophasic propylene copolymer is present in an amount of at least 95 wt % based on the heterophasic propylene copolymer composition, wherein the heterophasic propylene copolymer consists of a) a propylene-based matrix wherein the propylene-based matrix consists of a propylene homopolymer and b) a dispersed ethylene α-olefin copolymer, wherein the sum of the weight of the propylene-based matrix and the weight of the dispersed ethylene-α-olefin copolymer is 100 wt % based on the heterophasic propylene copolymer, wherein the amount of xylene-soluble matter (CXS) in the heterophasic propylene copolymer composition is in the range from 20.0 to 35.0 wt % based on the heterophasic propylene copolymer composition, wherein the CXS is measured according to ISO 16152:2005 in p-xylene at 25° C.

Provided is a laminate that is excellent in heat sealing properties and is suitable for reuse. The laminate includes: a first layer having a melting point of Tm.sub.1 and containing a first polyethylene alone as a resin; and a second layer having a melting point of Tm.sub.2 and containing a second polyethylene alone as a resin, where: the first layer and the second layer are disposed respectively as outermost surfaces of the laminate; and Tm.sub.1−Tm.sub.2≥24.0° C. is satisfied.

A food package having a heat-sealed cover composed of a lower plastic film and an upper plastic film which is distinct and separate from the lower plastic film is disclosed. The upper and lower films are collapsible, i.e., they can be creased and crumpled into a ball without effort or folded as a tissue paper. The lower film and upper film are heat-sealed to each other at respective perimeter edges to define a closed, watertight internal housing filled with a modified atmosphere. A tray, configured to house the food product, is inserted in the closed internal housing but is not fixed to the upper or lower film. The food packaging described herein allows a substantial reduction of plastic compared to those currently on the market, while guaranteeing its mechanical rigidity, and the long-term quality of the product. A method for producing the packaging is also disclosed.

The present patent application relates to a method of manufacturing a multilayered composite film comprising a step of co-extruding at least three layers (a), (b) and (c), of which the layer (a) forms an outward surface of the composite film; the layer (c) forms a surface of the composite film facing or coming in contact with a good to be packaged; and the layer (b) is disposed between the layer (a) and the layer (c). Further, the method includes a step of biaxial orientation of the composite film thus co-extruded. Therein, the layer (a) contains or consists of a thermoplastic resin. The layer (b) contains or consists of a polyvinylidene chloride (PVdC) resin. The layer (c) contains or consists of a resin, preferably sealable, in particular heat-sealable resin. Therein, any crosslinking of the composite film by means of radioactive radiation, in particular by means of beta, gamma, X-ray and/or electron irradiation, is omitted during the manufacturing of the composite film and/or thereafter.

The present invention is directed to a monoaxially oriented, cross-linked multilayer film.

The invention is further directed to a method of producing and preserving a food product using such a film, bag or pouch and to a packaged food product obtained therefrom.

A laminate for forming a packaging bag, in sequence: a substrate layer; an adhesive layer; and a sealant layer, wherein the sealant layer includes a first polyester film having a crystallinity of 20 to 50% based on a first absorbance at a first wavenumber of 1409 cm.sup.−1, a second absorbance at a second wavenumber of 1370 cm.sup.−1, a third absorbance at a third wavenumber of 1340 cm.sup.−1, a first constant, and a second constant, the first to third absorbances and the first and second constants being determined based on FT-IR analysis, which uses a reflection method, on at least the first polyester film, the crystallinity of the first polyester film being expressed in accordance with the following formulas (1) and (2): I.sub.1409=p1×I.sub.1340+p2×I.sub.1370 . . . (Formula 1) and C=p1×(I.sub.1340/I.sub.1409)×100 . . . (Formula 2).

A packaging material including a film that is biodegradable and compostable, wherein at least one aperture is formed in the film. The at least one aperture is structured and distributed such that the film controls oxygen permeability and water vapor permeability to such an extent that when the film encompasses a food product that is initially fresh the food product will remain fresh for at least one additional day when compared with the case that the film is replaced by a plastic that is not biodegradable and compostable.

Disclosed herein are compositions and methods related to a packaging laminate comprising: a first polymeric layer comprising a polypropylene copolymer or a high density polyethylene (HDPE) resin; and a second polymeric layer comprising a high density polyethylene (HDPE) resin or linear low density polyethylene (LLDPE) resin with a coextruded ethyl vinyl alcohol (EVOH) compatibilizer. Also disclosed herein are packaging containers formed of the packaging laminates.

Provided are heat sealing, barrier laminates including polyethylene. The laminates can be adhesiveless and fully compatible with polyethylene recycling streams. They can exhibit improved, maintained, or desirable properties in comparison to existing laminate structures that are not fully compatible with polyethylene recycling streams. The laminate comprises a multilayer film and an oriented film. The oriented film is thermally laminated to the outer layer of the multilayer film to provide the laminate.