Abstract: An ethylene-vinyl alcohol copolymer (EVOH) resin particle composition, an EVOH film formed therefrom, and a multilayer structure containing the same. The EVOH resin particle composition includes: a first EVOH resin particle having a surface valley void volume (Vvv) of 0.00003˜2 ?m3/?m2; and a second EVOH resin particle having a surface valley void volume (Vvv) of 0.00005˜10 ?m3/?m2. This can improve thickness uniformity, oxygen transmission rate and stretchability of the film made by the EVOH resin particle compositions.

Abstract: An ethylene-vinyl alcohol copolymer (EVOH) resin particle composition, an EVOH film formed therefrom, and a multilayer structure containing the same. The EVOH resin particle composition includes: a first EVOH resin particle having a surface core void volume (Vvc) of 0.002˜14 ?m3/?m2; and a second EVOH resin particle having a surface core void volume (Vvc) of 0.010˜48 ?m3/?m2. This can improve the thermoformability of EVOH compositions.

Abstract: An ethylene-vinyl alcohol copolymer (EVOH) resin particle composition, an EVOH film formed therefrom, and a multilayer structure containing the same. The EVOH resin particle composition includes: a first EVOH resin particle having a peak material volume (Vmp) of 0.00001˜6 ?m3/?m2; and a second EVOH resin particle having a peak material volume (Vmp) of 0.00015˜20 ?m3/?m2. This can improve the workability and mechanical properties of the EVOH composition when it is made into a film.

Abstract: An ethylene-vinyl alcohol copolymer (EVOH) resin particle composition, an EVOH film formed therefrom, and a multilayer structure containing the same. The EVOH resin particle composition includes: a first EVOH resin particle having a surface core void volume (Vvc) of 0.002˜14 ?m3/?m2; and a second EVOH resin particle having a surface core void volume (Vvc) of 0.010˜48 ?m3/?m2. This can improve the thermoformability of EVOH compositions.

Abstract: An ethylene-vinyl alcohol copolymer (EVOH) resin particle composition, an EVOH film formed therefrom, and a multilayer structure containing the same. The EVOH resin particle composition includes: a first EVOH resin particle having a surface valley void volume (Vvv) of 0.00003˜2 ?m3/?m2; and a second EVOH resin particle having a surface valley void volume (Vvv) of 0.00005˜10 ?m3/?m2. This can improve thickness uniformity, oxygen transmission rate and stretchability of the film made by the EVOH resin particle compositions.

Abstract: The present invention relates to an ethylene-vinyl alcohol copolymer (EVOH) resin composition, an EVOH film formed therefrom, and a multilayer structure containing the same. The core void volume (Vvc) of the surface of the EVOH resin composition is more than 0.010 ?m3/?m2 and less than 50 ?m3/?m2; or its surface pole height (Sxp) is more than 0.010 ?m and less than 9.0 ?m. The invention can reduce the torque output during processing, reduce the adsorption of fine powder on the surface caused by static electricity generated on the surface of the EVOH, and provide good film thickness uniformity.

Abstract: The present invention relates to an ethylene-vinyl alcohol copolymer (EVOH) resin composition, an EVOH film formed therefrom, and a multilayer structure containing the same. The surface roughness of the EVOH resin composition is a kurtosis (Sku) ranging from 0.05 to 100. The EVOH of the invention can reduce the torque output during processing, and can obtain the EVOH film with excellent appearance.

Abstract: The present invention relates to an ethylene-vinyl alcohol copolymer (EVOH) resin composition, an EVOH film formed therefrom, and a multilayer structure containing the same. The surface roughness of the EVOH resin composition is the root mean square gradient (Sdq) between 0.0005 and 13. The EVOH of the invention can reduce the torque output during processing, and make the appearance of the EVOH film highly uniform.

Abstract: The present invention relates to an ethylene-vinyl alcohol copolymer (EVOH) resin composition, an EVOH film formed therefrom, and a multilayer structure containing the same. The surface roughness of the EVOH resin composition is the peak material volume (Vmp) between 0.0008 and 10 ?m3/?m2. The EVOH of the invention can reduce the torque output during processing, and can obtain the EVOH film with excellent appearance.

Abstract: The present invention relates to an ethylene-vinyl alcohol copolymer (EVOH) resin composition, an EVOH film formed therefrom, and a multilayer structure containing the same. The surface roughness of the EVOH resin composition is the root mean square gradient (Sdq) between 0.0005 and 13. The EVOH of the invention can reduce the torque output during processing, and make the appearance of the EVOH film highly uniform.

Abstract: The present invention relates to an ethylene-vinyl alcohol copolymer (EVOH) resin composition, an EVOH film formed therefrom, and a multilayer structure containing the same. The surface roughness of the EVOH resin composition is a kurtosis (Sku) ranging from 0.05 to 100. The EVOH of the invention can reduce the torque output during processing, and can obtain the EVOH film with excellent appearance.

Abstract: The present invention relates to an ethylene-vinyl alcohol copolymer (EVOH) resin composition, an EVOH film formed therefrom, and a multilayer structure containing the same. The core void volume (Vvc) of the surface of the EVOH resin composition is more than 0.010 ?m3/?m2 and less than 50 ?m3/?m2; or its surface pole height (Sxp) is more than 0.010 ?m and less than 9.0 ?m. The invention can reduce the torque output during processing, reduce the adsorption of fine powder on the surface caused by static electricity generated on the surface of the EVOH, and provide good film thickness uniformity.

Abstract: The present invention relates to an ethylene-vinyl alcohol copolymer (EVOH) resin composition, an EVOH film formed therefrom, and a multilayer structure containing the same. The surface roughness of the EVOH resin composition is the peak material volume (Vmp) between 0.0008 and 10 ?m3/?m2. The EVOH of the invention can reduce the torque output during processing, and can obtain the EVOH film with excellent appearance.

Abstract: The instant disclosure relates to saponified pellets of an ethylene-vinyl ester based copolymer as well as a film and a multilayer structure formed therefrom. The saponified pellets of an ethylene-vinyl ester based copolymer has an ethylene content of 24-35 mole %, and the pellets have a turbidity of less than 300 NTU when dissolved in a 60% (w/w) methanol aqueous solution; or the pellet has an ethylene content of 36-48 mole %, and the pellets have a turbidity of less than 200 NTU when dissolved in a 80% (w/w) methanol aqueous solution. The present invention controls the amount of aggregates by controlling the turbidity of the saponified pellets of an ethylene-vinyl ester based copolymer dissolved in methanol aqueous to reduce the amount of gel produced after film formation.

Abstract: The present disclosure provides ethylene-vinyl alcohol copolymer resin compositions, and multilayer structure comprising the ethylene-vinyl alcohol copolymer resin compositions with uniform thickness.

Abstract: Provided is an ethylene-vinyl alcohol copolymer composition having improved oxygen barrier properties, wherein the ethylene-vinyl alcohol copolymer composition comprises an ethylene-vinyl alcohol copolymer; and a manganese content of about 0.01 ppm to 0.49 ppm.

Abstract: Ethylene-vinyl alcohol copolymer resin composition pellet(s), films, and multi-layer structure formed therefrom, as well as methods for preparing such ethylene-vinyl alcohol copolymer resin composition pellets are provided herein. The ethylene-vinyl alcohol copolymer resin composition typically comprises at least two melting point temperatures, and a boron compound, wherein the ethylene-vinyl alcohol copolymer resin composition has a boron content of about 25 to about 300 ppm and has an iodine dyed region of about 0.1 mm2 or less after dripping 0.01 mL of iodine solution on the surface of the ethylene-vinyl alcohol copolymer resin composition, dipping the ethylene-vinyl alcohol copolymer resin composition into water for 5 seconds, and drying at a temperature of 120° C. for 2 hours.

Abstract: Ethylene-vinyl alcohol copolymer resin composition pellet(s), films, and multi-layer structure formed therefrom, as well as methods for preparing such ethylene-vinyl alcohol copolymer resin composition pellets are provided herein. The ethylene-vinyl alcohol copolymer resin composition typically comprises at least two melting point temperatures, and a boron compound, wherein the ethylene-vinyl alcohol copolymer resin composition has a boron content of about 25 to about 300 ppm and has an iodine dyed region of about 0.1 mm2 or less after dripping 0.01 mL of iodine solution on the surface of the ethylene-vinyl alcohol copolymer resin composition, dipping the ethylene-vinyl alcohol copolymer resin composition into water for 5 seconds, and drying at a temperature of 120° C. for 2 hours.

Abstract: Pellets of ethylene-vinyl alcohol copolymer having lamellar stacks of ethylene-vinyl alcohol copolymer with a long period determined by small-angle X-ray scattering of at least 8.35 nm. The lamellar stacks of ethylene-vinyl alcohol copolymer may have an average crystalline lamellar thickness of at least 6 nm. Additionally or alternatively, the lamellar stacks of ethylene-vinyl alcohol copolymer may have an average amorphous lamellar thickness of at least 2.35 nm. Methods are also provided for producing pellets of ethylene-vinyl alcohol copolymer, such as those having preferable lamellar stack properties, as described above.

Abstract: Ethylene-vinyl alcohol pellet(s), films, and multi-layer structure formed therefrom, as well as methods for preparing such ethylene-vinyl alcohol pellets are provided herein. The ethylene-vinyl alcohol pellets have at least two melting point temperatures and a light transmittance of greater than 8% for visible light wavelengths. The ethylene-vinyl alcohol pellet may have a haze value of less than 99.8%. One method for producing the EVOH pellet includes: obtaining a first solution comprising a first ethylene-vinyl acetate having a first ethylene content; obtaining a second solution comprising a second ethylene-vinyl acetate having a second ethylene content that is different from the first ethylene content; solution mixing; saponification; pelletizing the mixed solution to form a pellet; contacting the pellet to a boron solution; and drying the pellet.