The present invention relates to a polyester film for windows, which can block harmful ultraviolet rays from outside or prevent glare from direct sunlight and reduce thermal energy when attached to an exterior wall glass of a building or a vehicle, which can also resolve the phenomenon that an image is blurred or unclear and the image is broken when looking at an external shape through the glass, and in which a clear external shape can be confirmed even through a polyester film because fine roll-drag defects in the longitudinal that could be caused in the manufacturing process of the polyester film are not visible, and the film can be easily shrunk and peeled off even at high temperatures when applying a window film to the glass of a vehicle or a building with the polyester film being laminated with a release film.

Embodiments relate to a protective film for a polarizer, a polarizing plate, and a display device comprising the same. The protective film for a polarizer according to the embodiments is improved in mechanical strength and minimized in rainbow strains by minimizing the difference in the orientation angle between the center and the edge of the film while generating a difference in the strengths in the longitudinal/transverse directions of the film. Hence, it can be advantageously used as a protective film for a polarizer.

Disclosed are compositions and methods for multilayer films, which, in one embodiment may include a core layer comprising a polyethylene stabilizer optionally in a masterbatch solution and at least 50 wt. % of high-density polyethylene. Further, the multilayer film may include a first skin layer comprising at least 90 wt. % ethylene-propylene polymer and antiblock, and a second skin layer consisting of an ethylene-propylene copolymer or terpolymer. Further still, the multilayer film may include a primer layer on the second skin, an aqueous barrier layer of ethylene vinyl alcohol polymer, polyvinyl alcohol polymer, or combinations thereof on the primer layer. And, further still, multilayer film may include a metallization layer on the aqueous barrier layer, wherein the multilayer film may be oriented in at least one direction.

To provide a multilayer film that enables easy opening of a packaging material manufactured by deep draw forming. A multilayer film for deep draw forming, including: a vinylidene chloride copolymer resin layer as a middle layer; a crosslinked olefin resin layer as a first surface layer; and an ethylene/vinyl acetate copolymer resin layer as a second surface layer; where the ethylene/vinyl acetate copolymer resin layer is further provided either at least between the vinylidene chloride copolymer resin layer as the middle layer and crosslinked olefin resin layer as the first surface layer, or between the vinylidene chloride copolymer resin layer as the middle layer and ethylene/vinyl acetate copolymer resin layer as the second surface layer.

The present invention relates to a biaxially oriented formable polyester film having A/B/A layer structure and the process of preparing the same. The biaxially oriented formable polyester films exhibit improved Dart impact, elongation and formability comparable to nylon film which are used for thermoforming and cold forming applications.

The present invention relates to a biaxially oriented formable polyester film having A/B/A layer structure and the process of preparing the same. The biaxially oriented formable polyester films exhibit improved Dart impact, elongation and formability comparable to nylon film which are used for thermoforming and cold forming applications.

A method for making low shrink polyester films wherein the films are arranged in stacks, tentered, heat treated, and relaxed in unison. Also, polyester films produced by such method.

A method for making low shrink polyester films wherein the films are arranged in stacks, tentered, heat treated, and relaxed in unison. Also, polyester films produced by such method.

A low oligomer modified polyester film capable of being easily extended and a method for manufacturing the same are provided. The modified polyester film includes a base layer and at least one skin layer formed on the base layer, each of which is formed from a polyester composition. The polyester composition includes 1 to 60 wt % of a blend resin, 0.02 to 2 wt % of an antioxidative ingredient, 0.003 to 2 wt % of a nucleation agent, and 0.003 to 2 wt % of a processing and flowing aid. The blend resin includes 90 to 99.9 phr of a polyester resin and 0.01 to 10 phr of an acrylic resin. The polyester resin has an intrinsic viscosity between 0.62 dl/g and 1.00 dl/g, and the acrylic resin has a weight average molecular weight (Mw) between 10,000 and 80,000.

A matte film for hot pressing and a manufacturing method thereof are provided. The manufacturing method includes steps of forming at least one polyester composition into an unstretched polyester thick film and stretching the unstretched polyester thick film in a machine direction (MD) and a transverse direction (TD). The polyester composition includes 81% to 97.9497% by weight of a polyester resin, 0.02% to 2% by weight of an antioxidative ingredient, 0.0003% to 1% by weight of a nucleating agent, 0.01% to 2% by weight of a flow aid, 0.01% to 2% by weight of a polyol ester based polyester modifier, 0.01% to 2% by weight of an inorganic polyester modifier, and 2% to 10% by weight of silica particles. The polyester resin has an intrinsic viscosity between 0.60 dl/g and 0.80 dl/g.