Process of making polyester pellets
    2.
    发明授权
    Process of making polyester pellets 失效
    制造聚酯粒料的方法

    公开(公告)号:US06613259B2

    公开(公告)日:2003-09-02

    申请号:US09765448

    申请日:2001-01-22

    IPC分类号: B29B906

    CPC分类号: C08G63/80 C08G63/672

    摘要: A process for preparing polyester pellets which involves blending polyethylene terephthalate and polyethylene isophthalate copolymer before solid state polymerization, the polyethylene isophthalate copolymer being composed of dicarboxylic acid constituent units derived from dicarboxylic acids containing terephthalic acid and isophthalic acid and diol constituent units derived from diols containing ethylene glycol and 1,3-bis(2-hydroxyethoxy)benzene, palletizing the blend and crystallizing the pellets.

    摘要翻译: 一种制备聚酯颗粒的方法,其包括在固态聚合之前共混聚对苯二甲酸乙二醇酯和聚间苯二甲酸乙二醇酯共聚物,聚邻苯二甲酸乙二醇酯共聚物由衍生自含对苯二甲酸和间苯二甲酸的二羧酸的二羧酸构成单元和由含有乙烯的二醇衍生的二醇构成单元 乙二醇和1,3-双(2-羟基乙氧基)苯,将混合物堆垛并使颗粒结晶。

    Catalyst for polyester production, process for producing polyester using the catalyst, polyester obtained by the process, and uses of the polyester
    5.
    发明授权
    Catalyst for polyester production, process for producing polyester using the catalyst, polyester obtained by the process, and uses of the polyester 有权
    用于聚酯生产的催化剂,使用催化剂生产聚酯的方法,通过该方法获得的聚酯和聚酯的用途

    公开(公告)号:US06346070B1

    公开(公告)日:2002-02-12

    申请号:US09470664

    申请日:1999-12-22

    IPC分类号: C08G6378

    摘要: The present invention provides a catalyst for polyester production capable of producing a polyester with high catalytic activity and a process for producing a polyester using the catalyst. The catalyst for polyester production comprises a solid titanium compound which is obtained by dehydro-drying a hydrolyzate obtained by hydrolysis of a titanium halide and which has a molar ratio (OH/Ti) of a hydroxyl group (OH) to titanium (Ti) exceeding 0.09 and less than 4. The present invention also provides a method to obtain a polyester having a small increase of the acetaldehyde content during the molding. This method comprises bringing a polyester, which is obtained by the use of a titanium compound catalyst and in which the reaction has been completed, into contact with a phosphoric ester aqueous solution or the like having a concentration of not less than 10 ppm in terms of phosphorus atom. The present invention further provides a polyester having excellent transparency and tint and molded products of the polyester such as a blow molded article, a film, a sheet and a fiber. The polyester is obtained by polycondensing an aromatic dicarboxylic acid or an ester-forming derivative thereof and an aliphatic diol or an ester-forming derivative thereof in the presence of a catalyst for polyester production which comprises a polycondensation catalyst component comprising a solid titanium compound and a co-catalyst component comprising a magnesium compound. This polyester has a titanium content of 1 to 100 ppm, a magnesium content of 1 to 200 ppm and a weight ratio (Mg/Ti) of magnesium to titanium of not less than 0.01.

    摘要翻译: 本发明提供一种能够生产具有高催化活性的聚酯的聚酯制造催化剂和使用该催化剂生产聚酯的方法。 用于聚酯生产的催化剂包括固体钛化合物,其通过脱水干燥由卤化钛水解得到的水解产物并且具有羟基(OH)与钛(Ti)的摩尔比(OH / Ti)超过钛 0.09以上且低于4.本发明还提供一种在成型时获得乙醛含量增加少的聚酯的方法。 该方法包括使通过使用钛化合物催化剂获得的反应已完成的聚酯与浓度不小于10ppm的磷酸酯水溶液等接触,换算为 磷原子。 本发明还提供一种聚酯,其具有优异的透明度和色调,并且聚酯的成型产品如吹塑制品,薄膜,片材和纤维。 在聚酯制造用催化剂的存在下,通过将芳香族二羧酸或其成酯性衍生物和脂肪族二醇或其成酯衍生物缩聚得到聚酯,该催化剂包括含有固体钛化合物的缩聚催化剂组分和 助催化剂组分包含镁化合物。 该聚酯的钛含量为1〜100ppm,镁含量为1〜200ppm,镁与钛的重量比(Mg / Ti)为0.01以上。

    Polyester pellets
    6.
    发明授权
    Polyester pellets 失效
    聚酯颗粒

    公开(公告)号:US06320014B1

    公开(公告)日:2001-11-20

    申请号:US09256088

    申请日:1999-02-24

    IPC分类号: C08G6318

    CPC分类号: C08G63/80 C08G63/672

    摘要: Disclosed are polyester pellets made of a polyester which comprises dicarboxylic acid constituent units derived from dicarboxylic acids containing terephthalic acid and isophthalic acid and diol constituent units derived from diols containing ethylene glycol and 1,3-bis(2-hydroxyethoxy)benzene, and which has the properties: constituent units derived from terephthalic acid are 15 to 99.5% by mol and constituent units derived from isophthalic acid are 0.5 to 85% by mol, both based on the total amount of dicarboxylic acid isophthalic acid constituent units (i); constituent units derived from ethylene glycol are 25 to 99.5% by mol and constituent units derived from 1,3-bis(2-hydroxyethoxy)benzene are 0.5 to 75% by mol, both based on the total amount of the diol constituent units (ii); the intrinsic viscosity is in the range of 0.5 to 1.5 dl/g; and the melting point (Tm (°C.)), as measured by a differential scanning calorimeter, satisfies the formula [1/527−0.0017·ln(1−(mI+mB)/200)]−1−273

    摘要翻译: 公开了由聚酯制成的聚酯粒料,其包含衍生自含有对苯二甲酸和间苯二甲酸的二羧酸的二羧酸结构单元和源自含有乙二醇和1,3-双(2-羟基乙氧基)苯的二醇的二醇结构单元, 性质:由对苯二甲酸衍生的结构单元为15〜99.5摩尔%,来自间苯二甲酸的构成单元为二烷基间苯二甲酸成分单元(i)的总量为0.5〜85摩尔%。 衍生自乙二醇的构成单元为25〜99.5摩尔%,来自1,3-双(2-羟基乙氧基)苯的构成单元为0.5〜75摩尔%,均基于二醇构成单元(ii ); 特性粘度在0.5〜1.5dl / g的范围内; 通过差示扫描量热计测定的熔点(Tm(℃))满足公式[1 / 527-0.0017.ln(1-(mI + mB)/ 200)]〜1-273

    Polyester and process for preparing polyester
    7.
    发明授权
    Polyester and process for preparing polyester 失效
    聚酯和聚酯制备工艺

    公开(公告)号:US06355738B2

    公开(公告)日:2002-03-12

    申请号:US09258079

    申请日:1999-02-26

    申请人: Koji Nakamachi

    发明人: Koji Nakamachi

    IPC分类号: C08F2000

    摘要: A process for preparing a polyester comprising the steps of blending (A) polyethylene terephthalate before solid phase polymerization having an intrinsic viscosity of 0.3 to 0.8 dl/g in an amount of 40 to 99% by weight, with (B) polyethylene naphthalate before solid phase polymerization having an intrinsic viscosity of 0.3 to 0.7 dl/g in an amount of 1 to 60% by weight, and subjecting the blend to solid phase polymerization. The process of the invention can provide a polyester having excellent gas barrier properties, transparency and heat resistance and hardly generating acetaldehyde.

    摘要翻译: 一种制备聚酯的方法,包括以下步骤:在固相聚合之前将(A)聚对苯二甲酸乙二醇酯在40至99重量%之间的特性粘度为0.3至0.8dl / g的混合物与(B)聚萘二甲酸乙二醇酯在固体 特性粘度为0.3〜0.7dl / g的相聚合,为1〜60重量%,对共混物进行固相聚合。 本发明的方法可以提供具有优异的阻气性,透明性和耐热性并且几乎不产生乙醛的聚酯。

    Bottle from polyester composition and process for producing the same
    8.
    发明授权
    Bottle from polyester composition and process for producing the same 失效
    来自聚酯组合物的瓶子和生产相同的方法

    公开(公告)号:US6004638A

    公开(公告)日:1999-12-21

    申请号:US608494

    申请日:1996-02-28

    IPC分类号: B65D1/02 H01B3/00

    摘要: A bottle molded from a polyester composition comprising 97 to 99.99% by weight of a polyester and 3 to 0.01% by weight of a polyester elastomer, which bottle exhibits dimensional change ratios of not greater than 5% measured in the height direction of the bottle and also not greater than 5% measured in the wall part diameter direction of the bottle and has an overturning angle of at least 10.degree., when the bottle was subjected to a hot bath test in which the bottle is filled with a beverage containing 2.5 gas volume carbon dioxide at 23.degree. C., stoppered and immersed in sealed condition in a hot bath heated at 70.degree. C. Thus, the bottle retains self-standing property without deformation even after it is filled with a carbonated beverage and subjected to heat sterilization.

    摘要翻译: 由聚酯组合物成型的瓶子,该聚酯组合物包含聚酯的重量比为97〜99.99%,聚酯弹性体为3〜0.01重量%,该瓶子在瓶的高度方向上的尺寸变化率为5%以下, 在瓶的壁部直径方向上测量的也不大于5%,并且具有至少10°的倾覆角,当瓶进行热浴试验时,其中瓶充满了含有2.5个气体体积的饮料 二氧化碳在23℃下塞紧并密封浸泡在加热至70℃的热浴中。因此,即使在充满碳酸饮料并进行加热灭菌之后,瓶也保持自立性能而不变形。

    Polyester resin composition and hollow molded container made therefrom
    9.
    发明授权
    Polyester resin composition and hollow molded container made therefrom 有权
    聚酯树脂组合物和由其制成的中空成型容器

    公开(公告)号:US06355319B1

    公开(公告)日:2002-03-12

    申请号:US09555042

    申请日:2000-05-24

    IPC分类号: C08L6702

    摘要: The present invention provides a polyester resin composition comprising (A) a polyethylene terephthalate composed mainly of repeating units derived from a dicarboxylic acid containing terephthalate acid and/or an esterified derivative thereof and a diol containing ethylene glycol and/or esterified derivative thereof, and (B) an ethylene/(meth) acrylic acid copolymer and, optionally, (C) polyethylene. The polyethylene terephthalate contains diethylene glycol units in a ratio of 0.5 to 2.0% by weight and a cyclic trimer in an amount not greater than 0.5% by weight based on polyethylene terephthalate. The ethylene/ (meth) arcylic acid coploymer is in an amount of 0.1 to 10,000 ppb based on the composition. Also provided are a perform formed from the composition and a blow molded container produced therefrom.

    摘要翻译: 本发明提供一种聚酯树脂组合物,其包含(A)主要由衍生自对苯二甲酸和/或其酯化衍生物的二羧酸的重复单元和含有乙二醇和/或其酯化衍生物的二醇组成的聚对苯二甲酸乙二醇酯和(A) B)乙烯/(甲基)丙烯酸共聚物和任选的(C)聚乙烯。 聚对苯二甲酸乙二醇酯包含0.5-2.0重量%的二甘醇单元和基于聚对苯二甲酸乙二醇酯的不大于0.5重量%的环状三聚体。 基于组合物,乙烯/(甲基)甲酸共聚物的量为0.1〜10,000ppb。 还提供了由组合物形成的性能和由其制造的吹塑容器。