Aliphatic polyester resin and its production method
    86.
    发明授权
    Aliphatic polyester resin and its production method 有权
    脂肪族聚酯树脂及其制备方法

    公开(公告)号:US08969507B2

    公开(公告)日:2015-03-03

    申请号:US13618144

    申请日:2012-09-14

    Abstract: A method of producing an aliphatic polyester resin by continuously esterifying and melt polycondensing an aliphatic dicarboxylic acid and an aliphatic diol; and at least one aliphatic hydroxycarboxylic acid; and at least one of an aliphatic unsaturated dicarboxylic acid and cis- and trans-isomers of aliphatic unsaturated tricarboxylic acids, wherein the total amount of the at least one aliphatic hydroxycarboxylic acid and the at least one of aliphatic unsaturated dicarboxylic acid and cis- and trans-isomers of aliphatic unsaturated tricarboxylic acids is from 0.0010 to 0.50 mol % of the total amount of the aliphatic polyester resin; and the total amount of the at least one aliphatic hydroxycarboxylic acid is from 1.0 to 7.0 in terms of a molar ratio to the total amount of the at least one of aliphatic unsaturated dicarboxylic acid and cis- and trans-isomers of aliphatic unsaturated tricarboxylic acids.

    Abstract translation: 通过连续酯化和熔融缩聚脂族二羧酸和脂族二醇来制备脂族聚酯树脂的方法; 和至少一种脂族羟基羧酸; 和脂族不饱和三羧酸的脂族不饱和二羧酸和顺式 - 和反式异构体中的至少一种,其中至少一种脂族羟基羧酸和至少一种脂族不饱和二羧酸和顺式 - 和反式 - 脂肪族不饱和三元羧酸的异构体为脂肪族聚酯树脂总量的0.0010〜0.50摩尔% 并且所述至少一种脂族羟基羧酸的总量以与脂族不饱和三羧酸的脂族不饱和二羧酸和顺式 - 和反式异构体的至少一种的总量的摩尔比计为1.0-7.0。

    Thermo-shrinkable polyester film
    89.
    发明授权
    Thermo-shrinkable polyester film 有权
    热收缩聚酯薄膜

    公开(公告)号:US08568841B2

    公开(公告)日:2013-10-29

    申请号:US12747416

    申请日:2008-12-11

    Abstract: Disclosed is a thermo-shrinkable polyester film having superior thermal shrinkage properties. The thermo-shrinkable polyester film has a strength of 3.5˜6.5 kg/mm2 in a direction perpendicular to a main shrinking direction at an initial elongation less than 10%, an elongation at rupture of 50˜700% in a direction perpendicular to a main shrinking direction, a thickness uniformity (ΔR) of 4 or less and a shrinkage ratio of 5% or less in a direction perpendicular to a main shrinking direction, thus preventing the rupture thereof in a rolling process and so on and ensuring process stability and productivity.

    Abstract translation: 公开了具有优异的热收缩性的热收缩性聚酯膜。 热收缩性聚酯膜在初始伸长率小于10%时,在与主收缩方向正交的方向上的强度为3.5〜6.5kg / mm 2,在与主体垂直的方向上的断裂伸长率为50〜700% 收缩方向,与主收缩方向垂直的方向的厚度均匀性(DeltaR)为4以下,收缩率为5%以下,防止了在轧制过程中的破裂等,确保了工艺稳定性和生产率 。

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