Patent classifications
B32B2439/66
PRODUCT TRANSPORT CONTAINERS
Product transport containers are disclosed. Such containers can provide one or more advantages compared to existing containers. For example, product transport containers described herein can maintain a product at a desired temperature for an extended period of time, including without the use of an active heating or cooling component. Such product transport containers described herein may also provide improved breathability, thermal insulation, and/or mechanical strength or dimensional stability. Such containers can include a plurality of walls defining an interior volume and a selectively openable side permitting movement of the product into and out of the interior volume of the container. The walls can be formed from a thermoformed non-woven fabric.
Metalloplastic strip for rigid food packaging and manufacturing method
The purpose of the invention is a method for coating a substrate made of an aluminum alloy in the AA3000 or AA5000 series, comprising the following steps: a) coating by (co-)extrusion of a polypropylene modified by maleic anhydride adhesion layer on each face of said substrate, and a surface layer made of polypropylene comprising at least one slip agent, so as to form a metalloplastic strip; b) calendering said metalloplastic strip; c) heat treatment of said metalloplastic strip; d) cooling of the metalloplastic strip, to obtain an H48 metallurgical temper and a coefficient of friction of 0.06 or less. The method being particularly suitable for the fabrication of food packaging and particularly for beverage can lids.
Method for producing anti-blocking hard coat film
Embodiments of invention provide a method for producing a hard coat film which has a hard coat that is formed from an active energy ray-curable resin composition on at least one surface of a film base. According to at least one embodiment, the active energy ray-curable resin composition used in this method contains (P) 100 parts by mass of a urethane (meth)acrylate compound, (Q) 0.02-5 parts by mass of organic fine particles having an average particle diameter of 10-300 nm, and (R) 0.0002-2 parts by mass of an acrylic silicone-based leveling agent. The method according to at least one embodiment includes the steps of (1) forming a wet coating film by applying the active energy ray-curable resin composition to the film base, (2) forming a dry coating film by drying the wet coating film, and (3) forming a hard coat film by curing the dry coating film by means of active energy ray irradiation at a temperature of 50-90° C.
Heat-shrinkable multilayer film and heat shrinkable label
The present invention provides a heat shrinkable multilayer film that has excellent adhesiveness between front and back layers and an interlayer, effectively prevents delamination, and is less likely to have white creases on folds. The present invention also provides a heat shrinkable label formed from the heat shrinkable multilayer film. The present invention relates to a heat shrinkable multilayer film, including: front and back layers each containing a polyester resin; an interlayer containing a polystyrene resin; and adhesive layers, wherein the front and back layers and the interlayer are stacked with the adhesive layers interposed therebetween, and the adhesive layers each contain 50 to 95% by weight of a polystyrene resin and 5 to 50% by weight of a polyester elastomer.
LAMINATED CAN END STOCK WITH ELEVATED TEMPERATURE ANNEALING
Improved aluminum can end stock (CES) is disclosed. The CES includes a laminated, amorphous polymer coating exhibiting low feathering, low blushing, and high performance in an acetic acid test. The laminated metal strip can include the laminated polymer coating on an interior-facing side and a lacquered coating on an exterior-facing side. The CES is formed by performing an annealing process on the laminated metal strip, wherein the metal strip is raised to an annealing temperature above the melting point of the polymer for a sufficient duration to render the polymer amorphous. In some cases, the polymer film laminated to the metal strip is a Polyethylene terephthalate (PET) film.
Acrylic Polyester Resin and An Aqueous Coating Composition Containing the Same
There is described an aqueous coating composition, the aqueous coating composition comprising an acrylic polyester resin, obtainable by grafting an acrylic polymer and a polyester material, the polyester material being obtainable by polymerizing: (i) a polyacid component, with (ii) a polyol component. At least one of the polyacid component and/or the polyol component comprises a functional monomer operable to impart functionality on to the polyester resin, such that an acrylic polymer may be grafted with the polyester material via the use of said functionality. The coating composition further containing a crosslinking material, wherein the crosslinking material comprises material according to formula (I); as shown in claim 1; wherein R.sub.1 is selected from aryl (such as C.sub.4 to C.sub.24 aryl), or aralkyl (such as C.sub.5 to C.sub.25 aralkyl); R.sub.2 to R.sub.5 are each independently hydrogen, alkyl (such as C.sub.1 to C.sub.20 alkyl), aryl (such as C.sub.4 to C.sub.24 aryl), aralkyl (such as C.sub.5 to C.sub.25 aralkyl) or —CHR.sub.8OR.sub.9;
wherein R.sub.8 and R.sub.9 are each independently hydrogen, alkyl (such as C.sub.1 to C.sub.20 alkyl), aryl (such as C.sub.4 to C.sub.24 aryl), aralkyl (such as C.sub.5 to C.sub.25 aralkyl), alkoxyalkyl (such as C.sub.2 to C.sub.40 alkoxyalkyl) or an alkaryl (such as C.sub.5 to C.sub.25 alkaryl);
wherein at least one of R.sub.2 to R.sub.5, is —CHR.sub.8OR.sub.9, suitably all of R.sub.2 to R.sub.5, are —CHR.sub.8OR.sub.9.
Composite film
A composite film for closing a container by sealing the composite film against a circumferential sealing surface of the container or of a cap ring to be connected to the container has a support layer made of a metal film and a sealing layer connected to the metal film. The sealing layer comprises a coextruded layer with a cohesively breaking intermediate layer and adhesion promoter layers arranged on both sides of the intermediate layer. The composite film is suitable for tight sealing against sealing surfaces made of polished tinplate.
Biaxially oriented polyester film for metal lamination
The invention relates to a multilayer biaxially oriented polyester film comprising a base layer B, an amorphous outer layer A and a further outer layer C, where this polyester film is suitable for lamination with metal sheets. The invention in particular relates to a polyester film which comprises (based on the mass of polyester) from 2 to 15% by weight of isophthalate-derived units in the base layer and which comprises more than 19% by weight of isophthalate-derived units in the amorphous layer A, and which has a silane-based coating on the outer layer A. The invention further relates to a process for the production of these films.
Laminated can end stock with elevated temperature annealing
Improved aluminum can end stock (CES) is disclosed. The CES includes a laminated, amorphous polymer coating exhibiting low feathering, low blushing, and high performance in an acetic acid test. The laminated metal strip can include the laminated polymer coating on an interior-facing side and a lacquered coating on an exterior-facing side. The CES is formed by performing an annealing process on the laminated metal strip, wherein the metal strip is raised to an annealing temperature above the melting point of the polymer for a sufficient duration to render the polymer amorphous. In some cases, the polymer film laminated to the metal strip is a Polyethylene terephthalate (PET) film.
Method of manufacturing a steel sheet for containers
A manufacturing method for steel sheets for containers produces steel sheets with excellent film adhesion qualities. This steel sheet for containers has, on a steel sheet, a chemical conversion coating with a metal Zr content of 1-100 mg/m.sup.2, a P content of 0.1-50 mg/m.sup.2, and an F content of no more than 0.1 mg/m.sup.2, upon which is formed a phenolic resin layer with a C content of 0.1-50 mg/m.sup.2. Moreover, the manufacturing method for steel sheets for containers is a method for obtaining the steel sheet for containers wherein the chemical conversion coating is formed on the steel sheet by subjecting the steel sheet to immersion in or electrolytic treatment with a treatment solution containing Zr ions, phosphoric acid ions, and F ions; and subsequently, the steel sheet upon which the chemical conversion coating has been formed is immersed in, or undergoes topical application of, an aqueous solution containing phenolic resin, then dried.