摘要:
A polyester composition contains polyester, a phosphoric acid and an alkali metal phosphate, a phosphorous element content P (mol/t) is 1.8 mol/t or more and 5.0 mol/t or less relative to the whole of the polyester composition. The polyester composition contains at least one metal element of Mn and Ca, any divalent metal element content other than Mn and Ca is 5 ppm or less, and when an alkali metal element content relative to the polyester composition is denoted by M1 (mol/t), and a total amount of Mn element content and Ca element content relative to the polyester composition is denoted by M2 (mol/t), a metal element content M (mol/t) in the polyester composition which is calculated by expression (i) below and the phosphorous element content P (mol/t) satisfy expression (ii): (i) M=M1/2+M2 and (ii) 1.1≦M/P≦3.0.
摘要:
A polyester composition contains polyester, a phosphoric acid and an alkali metal phosphate, a phosphorous element content P (mol/t) is 1.8 mol/t or more and 5.0 mol/t or less relative to the whole of the polyester composition. The polyester composition contains at least one metal element of Mn and Ca, any divalent metal element content other than Mn and Ca is 5 ppm or less, and when an alkali metal element content relative to the polyester composition is denoted by M1 (mol/t), and a total amount of Mn element content and Ca element content relative to the polyester composition is denoted by M2 (mol/t), a metal element content M (mol/t) in the polyester composition which is calculated by expression (i) below and the phosphorous element content P (mol/t) satisfy expression (ii): (i) M=M1/2+M2 and (ii) 1.1≦M/P≦3.0.
摘要翻译:聚酯组合物含有聚酯,磷酸和碱金属磷酸盐,相对于整个聚酯组合物,磷元素含量P(mol / t)为1.8mol / t以上且5.0mol / t以下。 聚酯组合物含有至少一种Mn和Ca的金属元素,Mn和Ca以外的二价金属元素含量为5ppm以下,当相对于聚酯组合物的碱金属元素含量为M1(mol / t ),并且相对于聚酯组合物的Mn元素含量和Ca元素含量的总量以M2(mol / t)表示,聚酯组合物中的金属元素含量M(mol / t)由式(i )和磷元素含量P(mol / t)满足表达式(ii):(i)M = M1 / 2 + M2和(ii)1.1 @ M / P 3.0。
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 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 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 %.
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 white film includes therein resin particles and voids formed around the resin particles, the film having a layer (S layer), wherein the number-average particle size Dn of the resin particles is 1.5 μm or less, the resin particles are contained in a number of 0.05 or more particles/μm2, and a proportion of the number of resin particles having a particle diameter of 2 μm or more is 15% or less.
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.