CRYSTALLINE POLYESTER RESIN AND FLAME-RESISTANT SEALING RESIN COMPOSITION

    公开(公告)号:EP3470451A1

    公开(公告)日:2019-04-17

    申请号:EP17855687.4

    申请日:2017-09-11

    申请人: Toyobo Co., Ltd.

    摘要: The present invention aims to provide a crystalline polyester resin which satisfies both of a high melting point and a high fluidity, and a flame-retardant sealing resin composition using the same. A crystalline polyester resin (A) containing polycarboxylic acid components and polyhydric alcohol components as copolymerizing components, characterized in that a copolymerizing rate of a 2,6-naphthalenedicarboxylic acid component is from 40 to 100 molar % when a total of the polycarboxylic acid components in the crystalline polyester resin (A) is taken as 100 molar %, that a 1,4-butanediol component is copolymerized as a polyhydric alcohol component, and that a copolymerizing rate of the 1,4-butanediol component is 40 molar % or less when a total of the polyhydric alcohol components is taken as 100 molar %.

    POLYETHYLENE-2,6-NAPHTHALATE COMPOSITION WITH EXCELLENT BLOW MOLDABILITY, AND MOLDED PRODUCT THEREOF
    5.
    发明公开
    POLYETHYLENE-2,6-NAPHTHALATE COMPOSITION WITH EXCELLENT BLOW MOLDABILITY, AND MOLDED PRODUCT THEREOF 有权
    聚2,6- NAPHTHALATZUSAMMENSETZUNG具有出色吹塑成形性和模塑THEREOF

    公开(公告)号:EP3109271A4

    公开(公告)日:2016-12-28

    申请号:EP15752229

    申请日:2015-02-19

    申请人: TEIJIN LTD

    发明人: TOMONARI YASUHIKO

    IPC分类号: C08G63/189 C08K3/02 C08L67/02

    摘要: The object of the present invention is to provide a highly crystalline polyethylene-2,6-naphthalate composition by achieving high molecular weight of PEN, wherein the polyethylene-2,6-naphthalate composition has greatly improved blow moldability and provides molded products having excellent hue, excellent weathering resistance, and additionally excellent transparency. The above-mentioned problems can be solved by a polyethylene-2,6-naphthalate composition comprising a specific phosphoric acid which is a phosphorus compound, cobalt element derived from a cobalt compound, manganese element derived from a manganese compound, and antimony element derived from an antimony compound, wherein the content of each of the elements simultaneously satisfies the following expressions (1) to (4): 10 ‰¤ Co ‰¤ 30 mmol % 0.50 ‰¤ P / Mn ‰¤ 1.28 10 ‰¤ Sb ‰¤ 25 mmol % 0.60 ‰¤ IV ‰¤ 1.50 dL / g

    LAYERED POLYESTER FILM AND HARDCOAT FILM
    6.
    发明公开
    LAYERED POLYESTER FILM AND HARDCOAT FILM 审中-公开
    LAYER形聚酯薄膜及硬涂膜

    公开(公告)号:EP2666633A1

    公开(公告)日:2013-11-27

    申请号:EP12737130.0

    申请日:2012-01-11

    摘要: [Problem] To provide: a layered polyester film which shows highly long-lasting adhesion of various kinds to hardcoat layers having various functions represented by a UV-absorbing function, etc. and which shows satisfactory appearance properties due to diminished interference unevenness; and a hardcoat film. [Solution] A Laminated polyester film which comprises a substrate polyester film (layer S) with at least one surface being laminated with a lamination layer (layer C) comprising a polyester resin as a primary component, the surface of the lamination layer (layer C) having a wetting tension of 35-45 mN/m and the polyester resin contained in the lamination layer (layer C) meeting the following requirements (a) to (c). (a) The lamination layer (layer C) contains polyesters (A) having a glass transition temperature (Tg) of 110-140°C and polyesters (B) having a glass transition temperature (Tg) of 40-90°C. (b) At least either polyesters (A) or polyesters (B) contains both a monomer having a sulfonic acid component and a monomer having a multivalent, i.e., tri- or higher-valent, carboxylic acid component, and (c) The mixing ratio between polyesters (A) and polyesters (B) is from 10/90 to 60/40.

    PROCESS FOR PREPARING POLYETHYLENENAPHTHALATE WITH 2,6-NAPHTHALENEDICARBOXYLIC ACID
    8.
    发明公开
    PROCESS FOR PREPARING POLYETHYLENENAPHTHALATE WITH 2,6-NAPHTHALENEDICARBOXYLIC ACID 有权
    用2,6-萘二甲酸制备聚对苯二甲酸乙二醇酯的方法

    公开(公告)号:EP2188321A2

    公开(公告)日:2010-05-26

    申请号:EP08853473.0

    申请日:2008-10-30

    IPC分类号: C08G63/189

    CPC分类号: C08G63/78 C08G63/189

    摘要: The present invention relates to a process for preparing polyethylene naphthalate, comprising the steps of: esterifying 2,6-naphthalene dicarboxylic acid and ethylene glycol, or glycols using the two materials as major material to obtain prepolymer which comprises bis(beta-hydroxyethyl)naphthalate or low polymer as main material and performing polycondensation reaction to thereby prepare polyethylene naphthalate. The process of the present invention has advantages of: enabling esterification with a low molar ratio of ethylene glycol to reduce reaction time, thereby increasing process efficiency; minimizing formation of side reaction products to improve properties; and preventing deterioration of the products by performing polycondensation at a low temperature to thereby obtain polyethylenenaphthalate polymers of high quality.

    摘要翻译: 本发明涉及一种用于制备聚萘二甲酸的方法,包括以下步骤的方法:酯化2,6-萘二甲酸和乙二醇,或使用这两种材料作为主要材料以获得预聚物,其包含二乙二醇(β-羟乙基)萘二甲酸酯 或低聚物作为主要材料并进行缩聚反应,由此制备聚萘二甲酸乙二醇酯。 本发明的方法具有以下优点:能够以低摩尔比的乙二醇进行酯化以缩短反应时间,从而提高工艺效率; 最小化副反应产物的形成以改善性能; 并通过在低温下进行缩聚来防止产物变质,从而获得高质量的聚萘二甲酸乙二醇酯聚合物。