The present invention relates to a method for manufacturing a polarizer, including: a) immersing and swelling a polyvinyl alcohol-based film in an aqueous solution containing an azo-based dye having an absorption wavelength of 300 nm to 550 nm; b) dyeing the swollen polyvinyl alcohol-based film with an iodine-based dye; and c) stretching the dyed polyvinyl alcohol-based film, and a polarizer manufactured using the method.

A cellular confinement system includes PET sheets and honeycomb-shaped cells formed by intercrossing the PET sheets. A connecting hole is provided at a joint where the PET sheets are intercrossed. An injection molded fixing component for connecting the PET sheets is provided at the connecting hole. The injection molded fixing component includes an injection molded rod arranged in the connecting hole and fixing plates each arranged to be fixedly connected to a corresponding end of two ends of the injection molded rod. The fixing plates each fits against a side wall of a corresponding PET sheet. The injection molded fixing component includes the injection molded rod and the fixing piece. The injection molded rod is configured to connect the PET sheets at the joint where the PET sheets are intercrossed. The fixing plate is configured to prevent the PET sheets from being disengaged from the injection molded rod.

The present invention provides an adhesive film hardly suffering from fisheyes and deposition of dirt and dusts thereonto and having excellent mechanical strength and heat resistance as well as good adhesion properties, which can be suitably used as various surface protective films, etc. The present invention relates to an adhesive film comprising a polyester film and an adhesive layer formed on at least one surface of the polyester film, in which the adhesive layer comprises a resin having a glass transition point of not higher than 0° C., and an antistatic agent, and a thickness of the adhesive layer is not more than 10 μm.

A biaxially oriented polyester film for molding, wherein the film lengthwise-direction and widthwise-direction storage elastic moduli at 100° C. are each greater than or equal to 100 MPa and less than or equal to 1000 MPa, the film lengthwise-direction and width-wise direction storage elastic moduli at 180° C. are each greater than or equal to 41 MPa and less than or equal to 400 MPa, and the stresses at the time of 100% elongation (F100 values) in the film lengthwise direction and width direction at 150° C. are each greater than or equal to 5 MPa and less than or equal to 60 MPa.

According to one aspect of the invention, a film is produced comprising core layers of lower density m-LLDPE (e.g., 0.914 density or lower) and RCPP (a polypropylene resin comprising an ethylene content). By adding a RCPP further comprising a catalyzed metallocene, predefined desirable properties are enhanced that improve the integrity of the film while assuring that performance requirements are achieved and maximized. According to a further aspect, PolylsoButlyene content is used to improve cling layer characteristics on both skins. According to still further aspects, the compositions and methods described herein result in master rolls, which typically comprise 70 gauge+ master roll content, having desired results achieved using only 45 gauge master roll.

The invention relates to thermoforming plant and their transport chains. Various aspects of the chain and chain rails are proposed. Overall the chain operates such that less wear occurs; it can also be cooled symmetrically and the film can be better heated up to the edges.

A method of producing an optical panel assembly including the polarizing film in a continuous manner by laminating a polarizing film to a surface of a rectangular-shaped optical panel, is disclosed. The polarizing film is formed by performing a step of subjecting a laminate including a continuous web of a thermoplastic resin substrate and a PVA type resin layer formed on the substrate, to a 2-stage stretching consisting of a preliminary in-air stretching and an in-boric-acid-solution stretching, to reduce a thickness of the PVA type resin layer to 10 μm or less, and a step of causing a dichroic material to be absorbed in the PVA type resin layer.

A post-processing method of a polymer electrolyte membrane, which anneals and stretches a polymer electrolyte membrane including a hydrocarbon-based copolymer in a vapor atmosphere of a solvent.

A post-processing method of a polymer electrolyte membrane, which anneals and stretches a polymer electrolyte membrane including a hydrocarbon-based copolymer in a vapor atmosphere of a solvent.

To prevent adherence of foreign matter such as wear powder to a film, an expander device (21) includes: an expander roller (22) configured to apply a tension to a film (F) in the width direction of the film (F); and a sucking section (26) configured to suck foreign matter into the expander roller (22) through a sucking port provided at an outer peripheral surface of the expander roller (22).