Provided is a polymer composition for manufacturing a large container that contains high-density polyethylene recycled from a secondary battery separator and has excellent mechanical properties. Specifically, a polymer composition having excellent processability may be prepared by recycling a secondary battery separator, and an eco-friendly large container having excellent mechanical properties such as a flexural modulus, an elongation, and an impact strength in a wide temperature range, and having an excellent environmental stress cracking resistance may be manufactured by molding the polymer composition.

Provided is a polymer composition for manufacturing a large container that contains high-density polyethylene recycled from a secondary battery separator and has excellent mechanical properties. Specifically, a polymer composition having excellent processability may be prepared by recycling a secondary battery separator, and an eco-friendly large container having excellent mechanical properties such as a flexural modulus, an elongation, and an impact strength in a wide temperature range, and having an excellent environmental stress cracking resistance may be manufactured by molding the polymer composition.

Provided is a polymer composition for manufacturing a large container that contains high-density polyethylene recycled from a secondary battery separator and has excellent mechanical properties. Specifically, a polymer composition having excellent processability may be prepared by recycling a secondary battery separator, and an eco-friendly large container having excellent mechanical properties such as a flexural modulus, an elongation, and an impact strength in a wide temperature range, and having an excellent environmental stress cracking resistance may be manufactured by molding the polymer composition.

The present application provides a dispersion dispersed satisfactorily cellulose nanofibers, powdery cellulose nanofibers obtained by pulverizing thereof, a resin composition obtained by blending thereof and a molding raw material for a 3D printer by using thereof. It is possible to obtain a composition uniformly finely dispersed the cellulose nanofibers by treating a mixture containing unmodified cellulose nanofibers and a dispersant using a high speed agitating Medialess disperser, and followed by pulverizing the composition to blend with a resin and a rubber component. Also, a resin composition improved in mechanical properties and heat resistance, obtained by blending the powdery cellulose nanofibers above with a thermoplastic resin or a thermosetting resin, is useful as a molding material for a 3D printer.

The present application provides a dispersion dispersed satisfactorily cellulose nanofibers, powdery cellulose nanofibers obtained by pulverizing thereof, a resin composition obtained by blending thereof and a molding raw material for a 3D printer by using thereof. It is possible to obtain a composition uniformly finely dispersed the cellulose nanofibers by treating a mixture containing unmodified cellulose nanofibers and a dispersant using a high speed agitating Medialess disperser, and followed by pulverizing the composition to blend with a resin and a rubber component. Also, a resin composition improved in mechanical properties and heat resistance, obtained by blending the powdery cellulose nanofibers above with a thermoplastic resin or a thermosetting resin, is useful as a molding material for a 3D printer.

There is provided a co-injection molded multilayer structure comprising a barrier layer and outer layers laminated to contact with the barrier layer on its both sides, wherein the barrier layer is made of a resin composition (X) comprising an ethylene-vinyl alcohol copolymer (A) and an alkali metal salt (B) of a higher fatty acid, having a melting point of 250° C. or lower; the ethylene-vinyl alcohol copolymer (A) has an ethylene unit content of 20 to 60 mol % and a saponification degree of 90% or more, and a content of the alkali metal salt (B) in the barrier layer is 50 to 1500 ppm in terms of metal atoms; and the outer layers are made of a resin composition (Y) comprising an unmodified high-density polyethylene (F) and a maleic anhydride-modified polyethylene (G), and a maleic anhydride modification rate relative to the whole resin composition (Y) is 0.005 to 0.1 wt %. This co-injection molded multilayer structure has excellent adhesiveness, so that its oxygen barrier performance can be maintained even after being subjected to an impact due to falling or the like.

There is provided a co-injection molded multilayer structure comprising a barrier layer and outer layers laminated to contact with the barrier layer on its both sides, wherein the barrier layer is made of a resin composition (X) comprising an ethylene-vinyl alcohol copolymer (A) and an alkali metal salt (B) of a higher fatty acid, having a melting point of 250° C. or lower; the ethylene-vinyl alcohol copolymer (A) has an ethylene unit content of 20 to 60 mol % and a saponification degree of 90% or more, and a content of the alkali metal salt (B) in the barrier layer is 50 to 1500 ppm in terms of metal atoms; and the outer layers are made of a resin composition (Y) comprising an unmodified high-density polyethylene (F) and a maleic anhydride-modified polyethylene (G), and a maleic anhydride modification rate relative to the whole resin composition (Y) is 0.005 to 0.1 wt %. This co-injection molded multilayer structure has excellent adhesiveness, so that its oxygen barrier performance can be maintained even after being subjected to an impact due to falling or the like.

A crosslinked rubber composition contains a rubber component and para-aramid short fibers having a filament fineness of 2.5 dtex or more and dispersed in the rubber component.

A crosslinked rubber composition contains a rubber component and para-aramid short fibers having a filament fineness of 2.5 dtex or more and dispersed in the rubber component.

The present invention provides a novel polyolefin-based polymer diffuser for lighting fixtures. The diffusers comprising 2 polymers in various ratios along with photo-responsive additives, which provide a long lasting and superior product over conventional polycarbonate-based diffusers. The diffusers of the present invention also result in economic advantages in terms of costs and manufacturing.