A multilayer injection molded article containing a layer (A) containing a polyamide resin (A), and a layer (B) containing a resin (B) as a major component, wherein the polyamide resin (A) contains from 25 to 50% by mol of a diamine unit, which contains a particular diamine unit in an amount of 50% by mol or more; from 25 to 50% by mol of a dicarboxylic acid unit, which contains a particular dicarboxylic acid unit in an amount of 50% by mol or more; and from 0.1 to 50% by mol of a particular constitutional unit.

A two layer and/or a three-layer device is disclosed that allows samples therein to remain at a warmer or a colder temperature than would be ordinarily possible without the use of the two or three-layer device. The two-layer device contains an interior layer that comprises the sample, and a middle or intermediate layer that comprises chemical species that undergoes an exothermic or endothermic reaction. The three layer device further has an outer layer that contains an insulating layer. When the three layer device is used for samples, the temperature of the sample can remain at a temperature around 11° C. or less for at least about 5.5 to 6 hours.

Disclosed is a composition that comprises or is produced from a first ethylene α-olefin copolymer, a modified first ethylene α-olefin copolymer, and a second ethylene α-olefin copolymer or propylene α-olefin copolymer. Also disclosed is a multilayer film or sheet structure containing at least one barrier layer; at least one predominantly propylene-based layer, at least one predominantly ethylene-based layer, or both; and at least one adhesive layer produced from the composition. Further disclosed is a produced for producing a multilayer structure using the composition as adhesive layer.

The composite structure includes a fiber-containing layer, such as a fiberboard layer or other layer having fibers from natural and/or synthetic sources, and a mineral-containing layer covering the fiber-containing layer. The fiber-containing layer and mineral-containing layer can be shaped, sized and manufactured such that the composite structure formed therefrom is capable of being machined to form a storage article. The composite structure has advantages in that it can improve whiteness, opacity, ink adhesion, materials reduction, barrier properties, recyclability, and printability. The composite can reduce polymer mass requirements for heat seal, barrier, and fiber adhesion. Further improvements include economics, pliability, and flexibility that is increased over the pliability of the fiber-containing layer alone.

An ethylene-vinyl alcohol copolymer resin composition contains: (A) an ethylene-vinyl alcohol copolymer; (B) an aliphatic carboxylic acid; (C) an aliphatic carboxylic acid metal salt which is a metal salt of the aliphatic carboxylic acid (B); and (D) an alkali metal compound; wherein the aliphatic carboxylic acid metal salt (C) contains a metal moiety that is at least one element selected from the group consisting of long Periodic Table 4th-period d-block elements; wherein the amounts of the aliphatic carboxylic acid (B), the aliphatic carboxylic acid metal salt (C), and the alkali metal compound (D) on a weight basis satisfy the following expressions (1) and (2):
0.01≤((D)/(C))≤30  (1)
0.0005≤{(D)/[(B)/((B)+(C))]}≤1  (2).
The ethylene-vinyl alcohol copolymer resin composition is excellent in impact resistance and adhesive strength even without a resin other than an ethylene-vinyl alcohol copolymer blended therein.

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.

The present disclosure relates to a method for selecting a polyester film in which the polyester film is used as a sealant layer in a multilayer body including a base material layer including a crystalline polyester film, an adhesive layer and a sealant layer in this order, the method including:

a step in which FT-IR analysis is performed on the polyester film by a reflection method, and the crystallinity of the polyester film is measured by the following formula; and

a step in which a first polyester film having a crystallinity of 2 to 15% is selected:

I.sub.1409=p1×I.sub.1340+p2×I.sub.1370  (Formula 1)

Crystallinity[%]=p1×(I.sub.1340/I.sub.1409)×100  (Formula 2)

The laminate of the present invention a laminate comprising a layer comprising a saponified ethylene/vinyl ester copolymer and a layer which comprises a thermoplastic resin that is not an EVOH resin and which has been laminated to at least one surface of the layer comprising a saponified ethylene/vinyl ester copolymer via a layer comprising an adhesive resin, wherein shear viscosity ratio of the saponified ethylene/vinyl ester copolymer and the adhesive resin (saponified ethylene/vinyl ester copolymer to adhesive resin) is 0.70-1.50 at a shear rate of 0.1 [1/s] and 0.90-1.10 at a shear rate of 1.0 [1/s].

A gas-barrier composition including nanocellulose containing at least one of a sulfuric acid group, a sulfo group, or a phosphoric acid group; and a reactive crosslinking agent.

The adhesive composition comprising emulsion polymers and microspheres and articles made therefrom are provided. The adhesive is particularly suitable for packages for consumer products that provide sufficient strength and thermal insulation while reducing the overall basis weight of the substrates.