A display board has a foam core with elastomeric properties with a first display layer affixed on one side and optionally a second display layer affixed on a second side. The elastic foam core can have a closed cell structure and be made from a thermoplastic. The display layers can be heat welded directly to the respective sides of the core with or without additional use of adhesive or the layers can be attached via adhesive only and not heat. The foam core has a Shore 00 hardness of 20-100.

The present invention provides a polyester film suitable for use as a sealant, which not only has high heat sealing strength, but also is less liable to adsorb various organic compounds, and has a less shrinkage in heating and high tensile strength. Further, the present invention provides a laminate comprising at least one layer of the polyester film, and a packaging bag including the same. The polyester film which is formed with a polyester resin whose main constituent is ethylene terephthalate. The film has at least one heat sealing layer. The film has a predetermined heat sealing strength, a predetermined difference in reversing heat capacity measured with a temperature modulated DSC, and a predetermined heat shrinkage. Further, the laminate comprises at least one layer of the polyester film, and the packaging bag includes the same.

A polyester film and a method for producing the same are provided. The polyester film includes a heat resistant layer. The heat resistant layer includes a high temperature resistant resin material and a polyester resin material. The high temperature resistant resin material and the polyester resin material are melted and kneaded with each other via a twin screw granulator. The twin-screw granulator has a twin-screw temperature between 250° C. and 320° C., and the twin-screw granulator has a twin-screw rotation speed between 300 rpm and 800 rpm, so that the high temperature resistant resin material is dispersed in the polyester resin material with a particle size of between 50 nm and 200 nm.

Provided is a multilayer co-extruded film comprising at least two different elasticity layers with at least one first elasticity layer and at least one second elasticity layer having higher elasticity than the at least one first elasticity layer, wherein the first elasticity layer comprises a combination of an olefin-based elastomer and a crystalline olefin polymer, and wherein the residual strain after 100% elongation during 10 min at 23° C. of the multilayer co-extruded film is less than 15%.

Novel or improved microporous single or multilayer battery separator membranes, separators, batteries including such membranes or separators, methods of making such membranes, separators, and/or batteries, and/or methods of using such membranes, separators and/or batteries are provided. In accordance with at least certain embodiments, a multilayer dry process polyethylene/polypropylene/polyethylene microporous separator which is manufactured using the inventive process which includes machine direction stretching followed by transverse direction stretching and a subsequent calendaring step as a means to reduce the thickness of the multilayer microporous membrane, to reduce the percent porosity of the multilayer microporous membrane in a controlled manner and/or to improve transverse direction tensile strength. In a very particular embodiment, the inventive process produces a thin multilayer microporous membrane that is easily coated with polymeric-ceramic coatings, has excellent mechanical strength properties due to its polypropylene layer or layers and a thermal shutdown function due to its polyethylene layer or layers. The ratio of the thickness of the polypropylene and polyethylene layers in the inventive multilayer microporous membrane can be tailored to balance mechanical strength and thermal shutdown properties.

Described herein is a multilayer microporous film or membrane that may exhibit improved properties, including improved dielectric break down and strength, compared to prior monolayer or tri-layer microporous membranes of the same thickness. The preferred multilayer microporous membrane comprises microlayers and one or more lamination barriers. Also disclosed is a battery separator or battery comprising one or more of the multilayer microporous films or membranes. The inventive battery and battery separator is preferably safer and more robust than batteries and battery separators using prior monolayer and tri-layer microporous membranes. Also, described herein is a method for making the multilayer microporous separators, membranes or films described herein.

Described is a carbon fibre fabric comprising an interlacement (2) of carbon fibre yarns (3) and polymer fibre yarns (4).

A heat equalization plate includes a first copper clad laminate including a first copper foil, a second copper clad laminate including a second copper foil, a connecting bump, a plurality of thermally conductive bumps, and a working fluid. The second copper foil faces the first copper foil. The connecting bump is formed on a surface of the first copper foil facing the second copper foil. The thermally conductive bumps are formed on a surface of the first copper foil facing the second copper foil. The connecting bump is an annulus and surrounds the thermally conductive bumps. The connecting bump is connected to the second copper foil to form a sealed chamber. The thermally conductive bumps are received in the sealed chamber. The working fluid is received in the sealed chamber.

Provided is an interlayer film for laminated glass with which double images in laminated glass can be significantly suppressed. An interlayer film for laminated glass according to the present invention has one end, and the other end having a larger thickness than the one end, the interlayer film has a region for display corresponding to a display region of a head-up display, and when first partial wedge angles θ1 are calculated in respective first partial regions of 80 mm in the direction connecting the one end and the other end centered at respective selected points, second partial wedge angles θ2 are calculated in respective second partial regions of 40 mm in the direction connecting the one end and the other end centered at respective selected points, and |θ1-θ2| is calculated from θ1 and θ2 in the first partial region and the second partial region centered at the same point in the direction connecting the one end and the other end, a maximum value among all values of |θ1-θ2| is 0.2 mrad or less, and the interlayer film as a whole has a wedge angle of 0.1 mrad or more.

A multilayer film comprising, in this order: (a) a biaxially oriented polyethylene terephthalate layer, (b) a pressure sensitive adhesive layer, (c) an elastic polyurethane dispersion, and (d) a biaxially oriented polyethylene terephthalate layer.

Layer (d) preferably has the structure A:B:A:C; where A and B preferably comprise crystalline PET and antiblocking particles and C is preferably an amorphous, heat-sealable copolyester.