The present disclosure relates to polymer compositions, articles formed from polymer compositions, methods of making polymer compositions, and methods of making articles including polymer compositions. In at least one embodiment, a composition includes: (1) an ethylene polymer, (2) a vinyl alcohol polymer or a polyamide, and (3) a polar polymer or a grafted polyolefin. A composition of the present disclosure may further include a polypropylene polymer. A polar polymer may be an ethylene-acrylic-acid-copolymer, ethylene acrylate copolymer, a polyvinyl acetate, or combination(s) thereof. In at least one embodiment, a film includes a composition having: (1) an ethylene polymer, (2) a vinyl alcohol polymer or a polyamide, and (3) a polar polymer or a grafted polyolefin.

The present disclosure relates to polymer compositions, articles formed from polymer compositions, methods of making polymer compositions, and methods of making articles including polymer compositions. In at least one embodiment, a composition includes: (1) an ethylene polymer, (2) a vinyl alcohol polymer or a polyamide, and (3) a polar polymer or a grafted polyolefin. A composition of the present disclosure may further include a polypropylene polymer. A polar polymer may be an ethylene-acrylic-acid-copolymer, ethylene acrylate copolymer, a polyvinyl acetate, or combination(s) thereof. In at least one embodiment, a film includes a composition having: (1) an ethylene polymer, (2) a vinyl alcohol polymer or a polyamide, and (3) a polar polymer or a grafted polyolefin.

A resin composition containing: a thermoplastic resin (A) that does not contain a polar group; a thermoplastic resin (B) that contains a polar group; an ethylene-vinyl alcohol copolymer (C) having an ethylene content of 20 to 60 mol %; an aliphatic carboxylic acid (D) having 3 or more carbon atoms; and an aliphatic carboxylic acid metal salt (E) that is a metal salt of the aliphatic carboxylic acid (D), wherein a metal species of (E) is at least one selected from the group consisting of elements belonging to the fourth period d-block in the long periodic table, the content of (A) is 66 to 99 wt. % with respect to the total sum of contents of the resin composition, and the content of (C) is 0.1 to 25 wt. % with respect to the total sum of the contents of the resin composition.

A resin composition containing: a thermoplastic resin (A) that does not contain a polar group; a thermoplastic resin (B) that contains a polar group; an ethylene-vinyl alcohol copolymer (C) having an ethylene content of 20 to 60 mol %; an aliphatic carboxylic acid (D) having 3 or more carbon atoms; and an aliphatic carboxylic acid metal salt (E) that is a metal salt of the aliphatic carboxylic acid (D), wherein a metal species of (E) is at least one selected from the group consisting of elements belonging to the fourth period d-block in the long periodic table, the content of (A) is 66 to 99 wt. % with respect to the total sum of contents of the resin composition, and the content of (C) is 0.1 to 25 wt. % with respect to the total sum of the contents of the resin composition.

Provided is a thermoplastic elastomer composition which does not undergo viscosity increase during melt molding, gelation and molding failure, while having excellent heat resistance and durability. A thermoplastic elastomer composition for tires, which contains (A) an ethylene-vinyl alcohol copolymer or a modified ethylene-vinyl alcohol copolymer, (B) a thermoplastic resin or a thermoplastic elastomer, which has a melting point of 200° C. or higher, and (C) an acid-modified elastomer in an amount of 20% by volume or more based on the amount of all polymer components. This thermoplastic elastomer composition for tires is characterized in that if this thermoplastic elastomer composition for tires is extruded at a piston speed of 5 min/min at a temperature that is higher than the melting point of the thermoplastic resin or thermoplastic elastomer (B) by 20° C. in a viscosity measurement by means of a capillary rheometer, the viscosity η.sub.2 in 800 seconds after the start of the extrusion is less than 120% of the viscosity η.sub.1 in 200 seconds after the start of the extrusion.

Provided is a thermoplastic elastomer composition which does not undergo viscosity increase during melt molding, gelation and molding failure, while having excellent heat resistance and durability. A thermoplastic elastomer composition for tires, which contains (A) an ethylene-vinyl alcohol copolymer or a modified ethylene-vinyl alcohol copolymer, (B) a thermoplastic resin or a thermoplastic elastomer, which has a melting point of 200° C. or higher, and (C) an acid-modified elastomer in an amount of 20% by volume or more based on the amount of all polymer components. This thermoplastic elastomer composition for tires is characterized in that if this thermoplastic elastomer composition for tires is extruded at a piston speed of 5 min/min at a temperature that is higher than the melting point of the thermoplastic resin or thermoplastic elastomer (B) by 20° C. in a viscosity measurement by means of a capillary rheometer, the viscosity η.sub.2 in 800 seconds after the start of the extrusion is less than 120% of the viscosity η.sub.1 in 200 seconds after the start of the extrusion.

A resin composition containing: a thermoplastic resin (A) that does not contain a polar group; a thermoplastic resin (B) that contains a polar group; an ethylene-vinyl alcohol copolymer (C) having an ethylene content of 20 to 60 mol %; acetic acid and/or a salt thereof (D); an aliphatic carboxylic acid (E) having 3 or more carbon atoms; and an aliphatic carboxylic acid metal salt (F) that is a metal salt of the aliphatic carboxylic acid (E), wherein the content of (A) is 66 to 99 wt. % with respect to the total sum of contents of the resin composition and the content of (C) is 0.1 to 25 wt. % with respect to the total sum of the contents of the resin composition.

A resin composition containing: a thermoplastic resin (A) that does not contain a polar group; a thermoplastic resin (B) that contains a polar group; an ethylene-vinyl alcohol copolymer (C) having an ethylene content of 20 to 60 mol %; acetic acid and/or a salt thereof (D); an aliphatic carboxylic acid (E) having 3 or more carbon atoms; and an aliphatic carboxylic acid metal salt (F) that is a metal salt of the aliphatic carboxylic acid (E), wherein the content of (A) is 66 to 99 wt. % with respect to the total sum of contents of the resin composition and the content of (C) is 0.1 to 25 wt. % with respect to the total sum of the contents of the resin composition.

A multilayer article comprising at least a first layer of a thermoplastic polyurethane (TPU) resin composition, a second layer of a TPU resin composition and a core layer between the first layer and the second layer, the core layer comprising a barrier resin composition, wherein the barrier resin composition comprises an ethylene vinyl alcohol copolymer (EVOH) (A), a hydroxyl group containing compound (B) having a molecular weight of 200 or less, a ratio of a number of hydroxyl groups in one molecule relative to the molecular weight within a range of form 0.02 to 0.03, and a melting point of from about 23° C. to about 200° C., and a fatty acid metal salt (C), the multilayer article having good elasticity, stretchability and barrier properties suitable for use in chemical suits and gloves.

A multilayer article comprising at least a first layer of a thermoplastic polyurethane (TPU) resin composition, a second layer of a TPU resin composition and a core layer between the first layer and the second layer, the core layer comprising a barrier resin composition, wherein the barrier resin composition comprises an ethylene vinyl alcohol copolymer (EVOH) (A), a hydroxyl group containing compound (B) having a molecular weight of 200 or less, a ratio of a number of hydroxyl groups in one molecule relative to the molecular weight within a range of form 0.02 to 0.03, and a melting point of from about 23° C. to about 200° C., and a fatty acid metal salt (C), the multilayer article having good elasticity, stretchability and barrier properties suitable for use in chemical suits and gloves.