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    • 1. 发明公开
    • POLYCARBONATE AND OPTICAL MATERIAL
    • POLYCARBONAT UND OPTISCHES MATERIAL
    • EP1069146A1
    • 2001-01-17
    • EP99907897.5
    • 1999-03-10
    • Idemitsu Petrochemical Co., Ltd.
    • ITO, MitsunoriKUZE, Shigeki
    • C08G64/30
    • C08G64/30
    • Disclosed are polycarbonates which are obtained by preparing a polycarbonate prepolymer through prepolymerization followed by polymerizing it through solid-phase, swollen solid-phase or thin film melt-phase transesterification, and have a remaining monomer content of smaller than 100 ppm, especially a dihydroxy compound content of smaller than 100 ppm, or have an acetone soluble content of at most 3.5 or at most 3.0 % by weight, or have a terminal hydroxyl fraction of smaller than 2 or smaller than 15 mol%; and optical materials and blow molding materials comprising the polycarbonate. The polycarbonates contain a reduced amount of impurities such as remaining monomers, oligomers and others and have improved physical properties including impact strength, and these are useful as optical materials and blow molding materials.
    • 公开了聚碳酸酯,其通过预聚合制备聚碳酸酯预聚物,然后通过固相,溶胀的固相或薄膜熔融相酯交换反应聚合而获得,并且剩余单体含量小于100ppm,特别是二羟基化合物 或者丙酮可溶物含量至多为3.5或最多3.0%(重量),或其羟基分数小于2或小于15摩尔%; 以及包含聚碳酸酯的光学材料和吹塑材料。 聚碳酸酯含有减少量的杂质,例如剩余的单体,低聚物等,并且具有包括冲击强度在内的改善的物理性能,并且它们可用作光学材料和吹塑材料。
    • 3. 发明公开
    • AROMATIC POLYCARBONATE RESIN COMPOSITION AND MOLDINGS
    • AROMATISCHE POLYKARBONATHARZZUSAMMENSZZEN UND FORMTEILE
    • EP1312646A1
    • 2003-05-21
    • EP01955630.7
    • 2001-08-09
    • IDEMITSU PETROCHEMICAL CO., LTD.
    • KAWATO, HiroshiKUZE, Shigeki
    • C08L69/00
    • C08L69/00C08K5/524C08L33/06C08L63/00C08L83/04C08L2666/02
    • Provided is an aromatic polycarbonate resin composition which comprises 100 parts by mass of an aromatic polycarbonate resin and from 0.001 to 1 part by mass of an additional thermoplastic resin that differs from the aromatic polycarbonate resin in the refractive index by at least 0.001 and which is so designed that the ratio (X)/(Y) is at least 0.5 wherein (X) indicates the spectral transmittance at 320 nm through a sample plate of the resin composition having a thickness of 2 mm and (Y) indicates the spectral transmittance at 633 nm through it. Having realized further increase in the transparency of aromatic polycarbonate resin, the resin composition gives moldings of which the transparency is comparable to that of acrylic resin for optical use, and the resin moldings have good impact resistance and heat resistance.
    • 提供一种芳香族聚碳酸酯树脂组合物,其包含100质量份芳族聚碳酸酯树脂和0.001〜1质量份的另外的热塑性树脂,其折射率不同于芳族聚碳酸酯树脂至少0.001, 设计为(X)/(Y)的比例至少为0.5,其中(X)表示通过厚度为2mm的树脂组合物的样品板在320nm处的光谱透射率,(Y)表示在633处的光谱透射率 nm通过它。 实现了芳族聚碳酸酯树脂的透明度的进一步提高,树脂组合物赋予了与光学用丙烯酸树脂相当的透明度的模塑品,并且树脂模制品具有良好的耐冲击性和耐热性。