B65D81/343

COMPOSITE POLYMER FILMS

A composite film includes a) a self-supporting layer of a polymer film (such as a polyester), b) an optional primer layer on the polymer film layer, wherein the primer layer includes a PVdX (X being halo), acrylic or vinyl resin; and c) a layer of heat seal composition on the primer layer, wherein the heat seal composition includes a polyolefin plastomer (POP) resin and a tackifier that constitutes at least 20 wt % of the heat seal composition. The composite film may be formed by applying a coating composition including the heat seal composition in a solvent to a primer layer on the polymer film or directly on the polymer film in absence of the optional primer layer, and then evaporating the solvent. The composite film may be heat-sealed to a surface of a container or a self-supporting film.

USE OF HIGH BARRIER AND PEELABLE POLYESTER FILM FOR TRAY LIDDING, DUAL OVENABLE PACKAGING APPLICATIONS AND TRAY LIDDING DUAL OVENABLE PACKAGES OBTAINED THEREFROM
20200254724 · 2020-08-13 ·

The present invention relates to the use of a laminate film, which can be transparent or white or colored (as described in the specification), comprising a first bi-axially oriented polyester film laminated to a second bi-axially oriented polyester film, wherein said first bi-axially oriented polyester film comprises a polyester base film comprising at least one polyester layer comprising one or more co-polyester(s) comprising units of terephthalic acid and at least a diol, said second bi-axially oriented polyester film comprises a polyethylene terephthalate base film, an inorganic vapor deposited layer, and an optional outer protective layer directly adhered to said inorganic vapor deposited layer, said inorganic vapor deposited layer comprising an inorganic compound selected from the group consisting of oxides, nitrides and oxynitrides of Al, Ti, Si, Zn, Sn, and mixture thereof, and a glue layer is interposed between said first bi-axially oriented polyester film and said second bi-axially oriented polyester film, and wherein said laminate film has (i) a tear ratio, between the tear initiation force measured according to ASTM D-1004 and said first bi-axially oriented polyester film total thickness, of at least 37 gf/micron in at least one of longitudinal and transverse direction, and (ii) a free shrink measured according to modified IS011501-95 at 180 C. for 5 minutes lower than 5% in at least one of longitudinal and transverse direction, as a lid in tray lidding applications and to the tray lidding packages made therefrom.

SEASONING PRODUCT
20200221747 · 2020-07-16 ·

The invention relates to a seasoning product and to the use of the seasoning product for cooking food. The seasoning product is an assembly of a sheet of flexible burn resistant material such as a baking paper, and a composition of three layers comprising a first layer of animal fat, a second layer of flavorings and a third layer of an oil coating of the flavorings.

Pack made of polyester with a thermoformable lower film and a sealable and peelable upper film, use thereof, and process for its production

The invention relates to transparent packaging for vacuum forming, inter alia, formed from a biaxially oriented, thermoformable polyester film as lower film (A) and a biaxially oriented polyester film as upper film (B) that is both heat-sealable and peelable (at least when the material is hot) in relation to the lower film (A). The present invention further relates to the use of such packaging to produce sealed, thermoformed packs, and to the processes for their respective production.

USE OF DUAL OVENABLE POLYESTER FILMS IN THERMOFORMING PACKAGING APPLICATIONS AND DUAL OVENABLE THERMOFORMED PACKAGES OBTAINED THEREFROM

The present invention relates to thermoforming food packaging methods and to dual ovenable thermoformed food packages suitable for cooking food products directly in the package in microwave, conventional and convection ovens. These packages are characterized by good hermeticity, clean peelability, self-venting, very good optics and, if shrunk, a very appealing appearance.

USE OF DUAL OVENABLE POLYESTER FILMS IN VACUUM SKIN PACKAGING APPLICATIONS AND SKIN PACKAGES OBTAINED THEREFROM

The present invention relates to the use of dual ovenable biaxially oriented polyester films in vacuum skin packaging applications. Furthermore, the invention relates to preferably dual ovenable skin packages, in particular to preferably dual ovenable vacuum skin food packages for cook-in applications. Due to the very high formability, the VSP packages of the present invention do not show the defects of prior VSP ovenable packages such as self-sealing of the top web or unsealed areas around the packed product.

Packaging for a food item
10640277 · 2020-05-05 · ·

A packaging or wrapping for a food product, capable of resisting to high temperatures and of eliminating the overpressure generated by the water vapour inside the packaging due to temperature rise, without the same packaging having any aperture communicating its inside and the outside environment. The packaging is also adapted to restrain/reduce the emission of odor-generating substances that are generated during the heating or baking of the packaged food product, with respect to what occurs in the absence of a packaging, or with a packaging provided with apertures.

Method of producing a heat-resistant polymer-coated oven board, an oven board obtainable by the method, a food tray and a food package
10632725 · 2020-04-28 · ·

The invention covers a method of producing a heat-resistant polymer-coated oven board, the resulting oven board, a food tray and a food package, which comprise such board and withstand heating in a range or microwave oven. According to the invention the coated oven board (1) is made by adhering a premade heat-resisting film (4) comprising polyethylene terephthalate (PET) or its derivate, such as glycol-modified PET known as PETG, to a board base (2) by extrusion lamination, in which an adhesive layer (3) comprising polyamide (PA) is extruded between the heat-resisting film and the board base. To improve the strength and barrier properties, the film (4) may be an extruded multilayer film and/or the film may be stretch-orientated to bring about crystallization in PET.

Thermoformable transparent packing made of polyester with a lower foil and an upper foil, process for production thereof and use thereof

The present invention relates to a transparent packaging for vacuum forming including a specific biaxially oriented thermoformable polyester foil as lower foil (A) and a specific biaxially oriented polyester foil as upper foil (B) that can be heat-sealed to the lower foil (A), and to a process for the production of such packing, and also use thereof.

FOOD TRAY AND MATABLE LID
20200071037 · 2020-03-05 ·

A container configured to contain food stuffs. The container includes a food tray and a matable lid. The food tray includes a tapered portion connected to an upper lip having an upper lip edge perimeter. The matable lid includes a mating portion including an inwardly tapered portion and an outwardly tapered portion forming an undercut region having an undercut region perimeter. The undercut region perimeter is less than the upper lip edge perimeter such that the undercut region flexes when a force is exerted on the matable lid during mating with the food tray. This permits the upper lip to overcome the undercut region and be held in place in a recess in the mating portion.