摘要:
A polyester film includes particles and two kinds of crystalline polyester resins in which a sea-island structure is formed, wherein, if a crystallization temperature of a crystalline polyester resin A that forms a continuous phase or matrix phase in the polyester film is represented by TccA and a crystallization temperature of a crystalline polyester resin B that forms a dispersion phase or domain phase in the polyester film is represented by TccB, expression (1) below is satisfied, and a degree of flatness of the dispersion phase is 3 or more, and 70% or more of a total number of the particles present in the dispersion phase or are in contact with the dispersion phase: TccA−TccB≧5° C. Expression (1).
摘要:
A biaxially oriented polyester film including a polyester layer (P1 layer) containing a polyester including ethylene terephthalate as a main constituent, a high melting point resin having a melting point TmB1 of not less than 260° C. and not more than 320° C., and inorganic particles, wherein content of the high melting point resin in the P1 layer, WB1, is not less than 2% by mass and not more than 40% by mass based on the P1 layer; in the P1 layer, dispersion phases composed of the high melting point resin are present in the polyester; and average longitudinal length of the dispersion phases is not more than 10,000 nm (10 μm).
摘要:
A laminate sheet including a layer containing a polyester resin as a main component (P1 layer), an adhesive resin layer (P2 layer), and a layer containing a polyolefin resin as a main component (P3 layer), wherein the laminate sheet has a total thickness of at least 30 μm and up to 500 μm, the P2 layer has a thickness of at least 0.1 μm and up to 3 μm, and a ratio of the thickness of the P1 layer (P1) to the thickness of the P3 layer (P3) (ratio P1/P3) is at least 0.2 and up to 5.
摘要:
A polyester film includes particles and two kinds of crystalline polyester resins in which a sea-island structure is formed, wherein, if a crystallization temperature of a crystalline polyester resin A that forms a continuous phase or matrix phase in the polyester film is represented by TccA and a crystallization temperature of a crystalline polyester resin B that forms a dispersion phase or domain phase in the polyester film is represented by TccB, expression (1) below is satisfied, and a degree of flatness of the dispersion phase is 3 or more, and 70% or more of a total number of the particles present in the dispersion phase or are in contact with the dispersion phase: TccA−TccB≧5° C. Expression (1).
摘要:
A polyester film has a laminate structure including a polyester layer (layer P1) containing a crystalline polyester and inorganic particles and a polyester layer (layer P2) containing a crystalline polyester, inorganic particles, and an antihydrolysis segment, wherein the content (Wa2) of the inorganic particles in the layer P2 is at least 10 mass % of the layer P2, the difference between the content (Wa2) (mass %) of the inorganic particles in the layer P2 and the content (Wa1) (mass %) of the inorganic particles in the layer P1, Wa2−Wa1, is 5 to 25 mass %, and the content (Wb2) of the antihydrolysis segment in the layer P2 is 0.02 to 1.5 mass % of the layer P2.
摘要:
A polyester film has a laminate structure including a polyester layer (layer P1) containing a crystalline polyester and inorganic particles and a polyester layer (layer P2) containing a crystalline polyester, inorganic particles, and an antihydrolysis segment, wherein the content (Wa2) of the inorganic particles in the layer P2 is at least 10 mass % of the layer P2, the difference between the content (Wa2) (mass %) of the inorganic particles in the layer P2 and the content (Wa1) (mass %) of the inorganic particles in the layer P1, Wa2−Wa1, is 5 to 25 mass %, and the content (Wb2) of the antihydrolysis segment in the layer P2 is 0.02 to 1.5 mass % of the layer P2.
摘要:
A polyester film includes a polyester layer (W layer) containing an aromatic polyester resin (A) and a component (B) incompatible with the polyester resin (A), wherein the incompatible component (B) contains an acid-denaturated polyolefin resin (b2) and is dispersed as dispersion pieces with a flatness of 10 or higher in the polyester layer (W layer), and wherein volume occupancy of the dispersion pieces in the polyester layer (W layer) is 3 vol % to less than 50 vol %, and volume occupancy of voids in the polyester layer (W layer) is less than 3 vol %.
摘要:
The present invention provides a polarizer which can be obtained by an easy process without going through a complex process, a method for producing the same, and a liquid crystal display device that exhibits high brightness using the same. A polarizer containing, a substrate having a parallel linear pattern provided with convex portions having widths of w=20 to 380 nm with pitches of p=50 to 400 nm, and a metal layer formed on a surface side having the linear pattern of the substrate.
摘要:
A white polyester film has a high level of whiteness, reflectivity, lightness, or thermal dimensional stability, and a surface light source that is produced with the white polyester film and has a high level of brightness characteristics. The white polyester film includes a white polyester layer (W layer) containing a polyester resin component (A) and a component (B) incompatible with the resin component (A) and having voids inside, wherein the incompatible component (B) is a cyclic-olefin resin (b) having a glass transition temperature of 110° C. or more, and the content Z of the cyclic-olefin resin (b) in the white polyester layer (W layer) is from 5% by weight to 50% by weight, based on the amount of the white polyester layer (W layer). The surface light source is produced therewith.
摘要:
A polyester film includes a polyester layer (W layer) containing an aromatic polyester resin (A) and a component (B) incompatible with the polyester resin (A), wherein the incompatible component (B) contains an acid-denaturated polyolefin resin (b2) and is dispersed as dispersion pieces with a flatness of 10 or higher in the polyester layer (W layer), and wherein volume occupancy of the dispersion pieces in the polyester layer (W layer) is 3 vol % to less than 50 vol %, and volume occupancy of voids in the polyester layer (W layer) is less than 3 vol %.