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 μm.sup.3/μm.sup.2. The EVOH of the invention can reduce the torque output during processing, and can obtain the EVOH film with excellent appearance.

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 μm.sup.3/μm.sup.2. The EVOH of the invention can reduce the torque output during processing, and can obtain the EVOH film with excellent appearance.

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 height difference (Sk) of the surface of the EVOH resin composition is between 0.6 and 2.0 μm, and the overall standard deviation of Sk is between 0.05 and 0.55. The invention can reduce the torque output during processing to achieve the effect of energy saving, and can also improve the stability during output to obtain a better film appearance.

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 height difference (Sk) of the surface of the EVOH resin composition is between 0.6 and 2.0 μm, and the overall standard deviation of Sk is between 0.05 and 0.55. The invention can reduce the torque output during processing to achieve the effect of energy saving, and can also improve the stability during output to obtain a better film appearance.

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.

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.

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.

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.

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 μm.sup.3/μm.sup.2 and less than 50 μm.sup.3/μm.sup.2; or its surface pole height (Sxp) is more than 0.010 μm and less than 9.0 μm. 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.

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 μm.sup.3/μm.sup.2 and less than 50 μm.sup.3/μm.sup.2; or its surface pole height (Sxp) is more than 0.010 μm and less than 9.0 μm. 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.