摘要:
A heat-resistant microporous film and a battery separator are provided, which each include a substrate formed by using a porous film and include a heat-resistant layer formed on at least one surface of the substrate so as to contain a heat-resistant resin and heat-resistant particles, and in which a protrusion is formed on a surface of the heat-resistant layer in number not exceeding 60 per surface area of 0.0418 mm2 and has an area not exceeding 500 μm2 per surface area of 0.0418 mm2 in a direction normal to a surface of the heat-resistant layer, the protrusion being formed as a result of aggregation of the heat-resistant particles and having a height of at least twice the average particle size of the heat-resistant particles with reference to the height average surface of the heat-resistant layer.
摘要:
An optical sheet includes a sheet body including a single translucent resin material layer having a first surface that light enters and a second surface that the light exits. The sheet body is orientationally crystallized in a first in-plane axis direction and a second in-plane axis direction orthogonal to each other and having a linear expansion coefficient of 1.0*10E−5/° C. or less in all in-plane directions. A structure surface portion that has a geometric configuration and is formed on at least one of the first surface and the second surface.
摘要:
A heat-resistant microporous film and a battery separator are provided, which each include a substrate formed by using a porous film and include a heat-resistant layer formed on at least one surface of the substrate so as to contain a heat-resistant resin and heat-resistant particles, and in which a protrusion is formed on a surface of the heat-resistant layer in number not exceeding 60 per surface area of 0.0418 mm2 and has an area not exceeding 500 μm2 per surface area of 0.0418 mm2 in a direction normal to a surface of the heat-resistant layer, the protrusion being formed as a result of aggregation of the heat-resistant particles and having a height of at least twice the average particle size of the heat-resistant particles with reference to the height average surface of the heat-resistant layer.
摘要:
An optical sheet includes a sheet body including a single translucent resin material layer having a first surface that light enters and a second surface that the light exits. The sheet body is orientationally crystallized in a first in-plane axis direction and a second in-plane axis direction orthogonal to each other and having a linear expansion coefficient of 1.0*10E−5/° C. or less in all in-plane directions. A structure surface portion that has a geometric configuration and is formed on at least one of the first surface and the second surface.
摘要:
An optical package includes one or two or more film-like or sheet-like optical elements, a plate-like support which supports the one or two or more optical elements, and a film-like or sheet-like packaging member which covers the one or two or more optical elements and the support. The one or two or more optical elements and the support form a stack, the stack and the packaging member are in close contact with each other, and the packaging member has a shrinkage property or a stretching property and contains voids and a filler disposed in the voids.