POLYESTER BLENDS EXHIBITING LOW TEMPERATURE TOUGHNESS
    11.
    发明申请
    POLYESTER BLENDS EXHIBITING LOW TEMPERATURE TOUGHNESS 审中-公开
    聚酯纤维展示低温韧性

    公开(公告)号:WO2008153688A2

    公开(公告)日:2008-12-18

    申请号:PCT/US2008/006446

    申请日:2008-05-20

    Abstract: Polymer blends suitable for packaging are disclosed that include one or more impact modifiers; and one or more polyethylene terephthalate homopolymers or copolymers obtained by a melt phase polymerization using a catalyst system comprising aluminum atoms in an amount, for example, from about 3 ppm to about 60 ppm and one or more alkaline earth metal atoms, alkali metal atoms, or alkali compound residues in an amount, for example, from about 1 ppm to about 25 ppm, in each case based on the weight of the one or more polyethylene terephthalate homopolymers or copolymers The polymer blends disclosed exhibit improved low temperature toughness compared with blends made using polymers prepared with conventional catalyst systems.

    Abstract translation: 公开了适用于包装的聚合物共混物,其包括一种或多种抗冲改性剂; 和一种或多种通过熔融相聚合获得的聚对苯二甲酸乙二醇酯均聚物或共聚物,其使用包含例如约3ppm至约60ppm的铝原子和一种或多种碱土金属原子的碱金属原子, 或碱化合物残基的量,例如约1ppm至约25ppm,基于一种或多种聚对苯二甲酸乙二醇酯均聚物或共聚物的重量。所公开的聚合物共混物与制备的共混物相比显示出改善的低温韧性 使用用常规催化剂体系制备的聚合物。

    OXYGEN-SCAVENGING POLYESTER COMPOSITIONS USEFUL FOR PACKAGING
    12.
    发明申请
    OXYGEN-SCAVENGING POLYESTER COMPOSITIONS USEFUL FOR PACKAGING 审中-公开
    用于包装的OXYGEN-SCAVENGING POLYESTER组合物

    公开(公告)号:WO2008088533A1

    公开(公告)日:2008-07-24

    申请号:PCT/US2007/025323

    申请日:2007-12-11

    CPC classification number: C08G63/547 C08G63/553 C08K5/0091 C08K5/098 C08L67/02

    Abstract: Oxygen-scavenging polyester compositions are disclosed that include residues of one or more unsaturated diols having from 4 to 8 carbon atoms, in an amount from about 0.01 mole percent to about 10 mole percent, and residues of terephthalic acid in an amount of at least 50 mole percent, in each case based on the total amount of residues of dicarboxylic acids in the polyester composition comprising 100 mole percent. The polyester compositions typically have an intrinsic viscosity that is at least 0.65 dL/g.

    Abstract translation: 公开了清除氧的聚酯组合物,其包含一种或多种具有4至8个碳原子的不饱和二醇的残基,其量为约0.01摩尔%至约10摩尔%,对苯二甲酸残基的量为至少50 在每种情况下,基于包含100摩尔%的聚酯组合物中的二羧酸残基的总量。 聚酯组合物通常具有至少0.65dL / g的特性粘度。

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