B32B2435/02

EASY PEEL SEALANT FILM
20170282514 · 2017-10-05 ·

An easy peel sealant film includes at least a support layer and a peel layer. The support layer has a composition which contains 100 to 70 mass % of a linear low-density polyethylene, and 0 to 30 mass % of a propylene homopolymer. The peel layer has a composition which contains 40 to 60 mass % of a low-density polyethylene, 10 to 20 mass % of a high-density polyethylene, and 20 to 50 mass % of a propylene homopolymer. The propylene homopolymer in the support layer and the propylene homopolymer in the peel layer have a melt flow rate of 1 g/10 min to 9 g/10 min.

Polymer composition for the manufacture of thermoformed articles
11427708 · 2022-08-30 · ·

This invention relates to a polymer composition that is particularly suitable for use in the manufacture of thermoformed articles, which can be biodegraded in industrial composting. This invention also relates to a process for the production of the said composition and articles obtained thereby.

LIQUID REPELLENT FILM OR SHEET, AND PACKAGING MATERIAL USING SAME

The present invention is a liquid-repellent film or sheet that exhibits an excellent liquid repellency, and a packaging material using the same. The liquid-repellent film or sheet comprises: a substrate layer (2); an adhesive layer (3) that comprises a thermoplastic resin, and is formed on at least one plane of the substrate layer (2); and a liquid-repellent layer (4) that comprises a resin (6) having a liquid-repellent moiety, and hydrophilic particles (5), and is formed on the surface of the adhesive layer (3).

CAN LID MADE OF RESIN LAMINATE STEEL SHEET FOR RESIN-METAL COMPOSITE CONTAINER, CAN BOTTOM MADE OF RESIN LAMINATE STEEL SHEET FOR RESIN-METAL COMPOSITE CONTAINER, AND RESIN-METAL COMPOSITE CONTAINER

A can lid made of a resin laminate steel sheet for a resin-metal composite container, includes: a top sheet portion; and a curved portion located at an outer periphery of the top sheet portion, in which the resin laminate steel sheet includes a steel sheet, a thermoplastic polyester-based resin layer provided at a first surface of the steel sheet, a modified polypropylene-based resin layer provided at a second surface of the steel sheet, a polypropylene-based resin layer, and an ethylene-propylene copolymer resin layer, a melting point of the ethylene-propylene copolymer resin layer is 135° C. or higher and 150° C. or lower, a melting point of the thermoplastic polyester-based resin layer is higher than a melting point of the polypropylene-based resin layer by 40° C. or more, and a range of a proportion of the ethylene component in the ethylene-propylene copolymer in the ethylene-propylene copolymer resin layer is 1.0 mass % or more and 45.0 mass % or less.

Barrier film with enhanced formability and a method for making thereof

A film comprises an outer heat sealable layer mainly made of a (co)polyolefin with the Vicat softening temperature not exceeding 130° C., at least one heat resistant layer mainly made of at least one polar (co)polymer selected from the group including predominantly aliphatic (co)polyamides and aromatic (co)polyesters, and at least one core adhesive layer from a material capable of adhering both to (co)polyolefins and to polar (co)polymers. The heat resistant layer comprises not less than 15% of at least one predominantly aliphatic copolyamide with the melting temperature not exceeding 205° C. A method comprises the stages of coextrusion, biaxial stretching, annealing and winding up of the resulting film into a roll.

Tabbed sealing member with improved heat distribution for a container

A tabbed seal as well as a method of manufacture is provided for sealing containers such as bottles, jars and the like. The tabbed seal is formed with a lower sheet-like structure having a non-foam, heat-distributing layer thereon.

RESIN-COATED METAL SHEET FOR CAN LIDS

A resin-coated metal sheet for can lids includes a metal sheet coated with thermoplastic resin films on both surfaces and formed into a can lid. A thermoplastic resin film A based on polybutylene terephthalate (PBT) and polyethylene terephthalate (PET) is heat-fused on a surface of the metal sheet serving as an exterior surface of the can lid, and a thermoplastic resin film B based on polyethylene terephthalate (PET) is heat-fused on a surface of the metal sheet serving as an interior surface of the can lid. A composition ratio (wt %) of PBT/PET in the thermoplastic resin film A on the exterior surface is (PBT/PET)=(40/60) to (80/20), and the thermoplastic resin film B on the interior surface includes 95 mol % or more of PET.

CONTAINERS COMPRISING CELLULOSE HYDRATE AND METHODS OF MANUFACTURE
20220041319 · 2022-02-10 ·

The invention relates to the field of cups, bowls and containers, particularly beverage cups, and to the production of cups, bowls and containers. According to the invention, the cups, bowls and containers comprise, in a first variant, a first layer (5) made of cellulose hydrate, also known as cellophane, or cellulose hydrate which is coated with a primer material (4). In addition, the cups, bowls and containers can comprise a second layer (3), made of paperboard or fibre/cellulose-starch mix, for example. In a second variant, the cups, bowls and containers according to the invention comprise a first layer made of natural rubber or plant-based wax and a second layer made of cellulose hydrate, paperboard or fibre/cellulose-starch mix. By using exclusively biodegradable materials, the present invention can provide completely biodegradable/compostable cups, bowls and containers. The invention also relates to a method for producing such cups, bowls and containers. In addition, the present invention also comprises the production of lids made of the aforementioned materials and the provision of cups, bowls and containers having such lids.

AIR FRESHENER AND SUBSTANCE DIFFUSING MEMBRANE WITH REMOVABLE SEAL
20220233737 · 2022-07-28 ·

An air freshener includes a reservoir for storing a liquid fragrant substance, the reservoir has a cavity and an opening to the cavity. A permeable membrane is coupled to the reservoir and has a first surface facing the cavity that covers the opening and a second surface facing away from the cavity. A laminate removable seal includes a metallic layer and a sealing layer, the laminate removable seal is disposed on the second surface of the permeable membrane. The sealing layer is removably adhered to substantially the entirety of the second surface of the permeable membrane.

BACK-OFF PREVENTING RESEALABLE ADHESIVES

Adhesive compositions that replace gaskets and liners in sealing applications for packages that are detachable with hand force are described. The adhesive compositions are particularly useful in preventing leaks and spillage during storage and transport of its packaged contents.