B32B2439/70

RADIO-FREQUENCY SEALABLE POLYMER AND ARTICLES THEREOF

The present invention relates to a reactor-grade copolyester composition having radio-frequency sealing capability. The present invention further relates to films and thermoformable packaging prepared from the reactor-grade copolyester composition and the methods for making such films and articles therefrom.

MULTILAYER STRUCTURE AND PACKAGING MATERIAL INCLUDING SAME
20180009202 · 2018-01-11 · ·

The present invention provides a novel multilayer structure having good gas barrier properties and good water vapor barrier properties and further having high retort resistance and a packaging material including the multilayer structure. The present invention relates to a multilayer structure including a base (X) and a layer (Y) stacked on the base (X). The layer (Y) contains an aluminum-containing compound (A) and an organic phosphorus compound (BO), and the organic phosphorus compound (BO) contains a phosphorus atom-containing functional group and at least one metal ion (Z) selected from ions of metals of Groups 1 to 12 of the periodic table, the content of the metal ion (Z) being 0.4 to 8.0 mol % relative to the content of the phosphorus atom-containing functional group.

MULTI-LAYER FILMS AND METHODS OF MANUFACTURING AND USING THE SAME
20180009203 · 2018-01-11 ·

The present disclosure relates to multi-layer film constructions and methods of manufacturing and using the same. The multi-layer film constructions can include a first layer joined to a second layer. The first layer can include one or more abuse resistant materials. The second layer can include a sealant film, which can be a multi-layer film having one or more sealing layers or sublayers. The second layer can also include one or more barrier layers. The multi-layer film constructions can also include score regions, which can be imparted by a laser or other mechanical implement.

HEAT-REFLECTIVE BLANK AND CONTAINER AND METHOD OF FORMING A HEAT-REFLECTIVE BLANK AND CONTAINER
20180009593 · 2018-01-11 ·

A method for forming a heat-reflective blank includes laminating at least one thermal film sheet at a predetermined position on a first linerboard sheet such that a laminated sheet is formed, and feeding the laminated sheet into a corrugating machine. The method further includes coupling the laminated sheet to a corrugated medium sheet and a second linerboard sheet such that a corrugated sheet is formed. The corrugated medium sheet is between the first linerboard sheet and the second linerboard sheet and the thermal film sheet is positioned on an outer surface of the corrugated sheet.

LAMINATED PACKAGING MATERIAL COMPRISING ALUMINUM WITH IMPROVED RECYCLABILITY
20230234337 · 2023-07-27 ·

The present invention relates generally to the field of laminated packaging. In particular, the present invention relates to laminated flexible packaging comprising aluminium and a plastic sealant layer only on one side of the aluminium. One embodiment of the present invention relates to a laminated flexible packaging made at least in part from a laminated flexible packaging material comprising an aluminium foil layer, a plastic sealant layer and a coating, wherein the aluminium foil layer is laminated to the plastic sealant layer on the side facing the packaged product, the other side of the aluminium foil layer is coated with the coating but not laminated to a layer of plastic or paper, and wherein the laminated flexible packaging is manufactured from the laminated flexible packaging material on a horizontal form fill and seal (HFFS) machine.

MULTI-LAYER RESEALABLE TAMPER-EVIDENT FILM FOR PACKAGING
20230234341 · 2023-07-27 · ·

A multilayer film comprising, in this order: (a) a biaxially oriented polyethylene terephthalate layer, (b) a pressure sensitive adhesive layer, (c) an elastic polyurethane dispersion, and (d) a biaxially oriented polyethylene terephthalate layer.

Layer (d) preferably has the structure A:B:A:C; where A and B preferably comprise crystalline PET and antiblocking particles and C is preferably an amorphous, heat-sealable copolyester.

MULTILAYER FILM WITH IMPROVED PROPERTIES

The present invention relates to a multilayer film comprising at least two outer layers (A) and (C) and at least one core layer (B), at least one of the outer layers (A) and/or (C) comprises component a1), whereas the other outer layer comprises component a1) or a2), whereby component a1) is a terpolymer of propylene, ethylene and one C4 to C10 α-olefin; whereby said terpolymer a1) has an ethylene content in the range of 0.1 to 8.0 wt.-% based on the total weight of the terpolymer a1); a C4 to C10 α-olefin content in the range of 0.1 to 16.0 wt.-% based on the total weight of the terpolymer a1); and a melt flow rate MFR2 measured according to ISO 1133 (230° C., 2.16 kg load) in the range of 0.5 to 12.0 g/10 min; component a2) is a polypropylene having a melting temperature of at least 150° C.; and layer (B) comprises a heterophasic propylene copolymer b), said heterophasic propylene copolymer b) comprises a matrix being a random propylene copolymer b1) and an elastomeric propylene copolymer b2) dispersed in said matrix; whereby the heterophasic propylene copolymer b) has a melt flow rate MFR2 measured according to ISO 1133 (230° C., 2.16 kg load) in the range of 0.3 to 20.0 g/10 min; a xylene cold soluble content (XCS) determined according ISO 16152 (25° C.) in the range of 16.0 to 50.0 wt.-%; and a comonomer content in the range of 11.5 to 21.0 mol-%. In addition, the present invention relates to the use of the multilayer film according to the present invention for soft packaging applications, preferably pouches for food packaging, for medical applications or for pharmaceutical applications.

RECYCLABLE RESEALABLE LAMINATE STRUCTURE
20230234347 · 2023-07-27 ·

A recyclable flexible laminate for use in a packaging structure, and method of manufacture, comprising a first structure having an inner surface and an outer surface. The first structure comprises machine-direction oriented polyethylene or biaxially oriented polyethylene. The laminate also comprises a second structure having an inner surface and an outer surface, wherein the second structure is machine-direction oriented polyethylene or biaxially oriented polyethylene. The first structure and the second structure are adhesively laminated together using an adhesive.

LAYER INCLUDING CALCIUM CARBONATE
20230235138 · 2023-07-27 ·

A layer includes polyvinyl alcohol and 20 wt % or more calcium carbonate, based on the total weight of the layer. Another layer includes polyvinyl alcohol and calcium carbonate. A container includes a body that defines an internal cavity capable of holding an article, the body including a layer including polyvinyl alcohol and 20 wt % or more of calcium carbonate, based on the total weight of the layer. Another container includes a layer including polyvinyl alcohol and calcium carbonate.

Co-injection molded multilayer structure and method for producing same
11565511 · 2023-01-31 · ·

There is provided a co-injection molded multilayer structure comprising a barrier layer and outer layers laminated to contact with the barrier layer on its both sides, wherein the barrier layer is made of a resin composition (X) comprising an ethylene-vinyl alcohol copolymer (A) and an alkali metal salt (B) of a higher fatty acid, having a melting point of 250° C. or lower; the ethylene-vinyl alcohol copolymer (A) has an ethylene unit content of 20 to 60 mol % and a saponification degree of 90% or more, and a content of the alkali metal salt (B) in the barrier layer is 50 to 1500 ppm in terms of metal atoms; and the outer layers are made of a resin composition (Y) comprising an unmodified high-density polyethylene (F) and a maleic anhydride-modified polyethylene (G), and a maleic anhydride modification rate relative to the whole resin composition (Y) is 0.005 to 0.1 wt %. This co-injection molded multilayer structure has excellent adhesiveness, so that its oxygen barrier performance can be maintained even after being subjected to an impact due to falling or the like.