会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 6. 发明申请
    • POLYESTER RESIN PARTICLE AND METHOD FOR PRODUCING THE SAME
    • 聚酯树脂颗粒及其生产方法
    • US20090263661A1
    • 2009-10-22
    • US12301725
    • 2007-08-02
    • Michiko YoshidaTakeyuki DoiNaoya MaedaHisashi Kimura
    • Michiko YoshidaTakeyuki DoiNaoya MaedaHisashi Kimura
    • B32B27/36C08G63/78
    • C08G63/80C08G63/85C08K5/0091C08K5/56Y10T428/2998
    • Polyester resin particles are provided as those capable of providing a highly transparent molded product by thermoforming, while suppressing fusion of the polyester prepolymer particles in a heat treatment thereof such as crystallization or solid-phase polycondensation, without reduction in a solid-phase polycondensation rate.The present invention provides a method for producing a polyester resin, comprising carrying out a hot-water treatment and a heat treatment, in this order, of polyester prepolymer particles obtained by melt polycondensation of a dicarboxylic acid component and a diol component. The hot-water treatment comprises bringing the polyester prepolymer particles with an intrinsic viscosity of from at least 0.10 dL/g to at most 1.0 dL/g and with a density of at most 1.36 g/cm3 into contact with hot water at a temperature higher than the glass transition temperature of the polyester prepolymer particles and less than 100° C., under the condition satisfying the following formula (1): 40≦(T−Tg)t≦6000  (1) wherein t is a hot-water treatment time (second), T is the temperature of the hot water (° C.) and Tg is the glass transition temperature (° C.) of the polyester prepolymer particles.
    • 提供聚酯树脂颗粒作为能够通过热成型提供高透明模塑产品的那些,同时抑制聚酯预聚物颗粒在其热处理如结晶或固相缩聚中的熔融,而不降低固相缩聚率。 本发明提供一种聚酯树脂的制造方法,其包括依次通过二羧酸成分和二醇成分的熔融缩聚得到的聚酯预聚物粒子进行热水处理和热处理。 热水处理包括使特性粘度为至少0.10dL / g至至多1.0dL / g,密度至多为1.36g / cm 3的聚酯预聚物颗粒在较高温度下与热水接触 在满足下列公式(1)的条件下:聚酯预聚物颗粒的玻璃化转变温度小于100℃,其中t是热水处理时间(秒),40℃-TT)t6000(1) T是热水的温度(℃),Tg是聚酯预聚物颗粒的玻璃化转变温度(℃)。
    • 8. 发明授权
    • Polyester resin particle and method for producing the same
    • 聚酯树脂颗粒及其制备方法
    • US08329857B2
    • 2012-12-11
    • US12301725
    • 2007-08-02
    • Michiko YoshidaTakeyuki DoiNaoya MaedaHisashi Kimura
    • Michiko YoshidaTakeyuki DoiNaoya MaedaHisashi Kimura
    • C08G75/02C08G63/00
    • C08G63/80C08G63/85C08K5/0091C08K5/56Y10T428/2998
    • The present invention provides a method for producing a polyester resin, comprising carrying out a hot-water treatment and a heat treatment, in this order, of polyester prepolymer particles obtained by melt polycondensation of a dicarboxylic acid component and a diol component. The hot-water treatment comprises bringing the polyester prepolymer particles with an intrinsic viscosity of from at least 0.10 dL/g to at most 1.0 dL/g and with a density of at most 1.36 g/cm3 into contact with hot water at a temperature higher than the glass transition temperature of the polyester prepolymer particles and less than 100° C., under the condition satisfying the following formula (1): 40≦(T−Tg)t≦6000  (1) wherein t is a hot-water treatment time (second), T is the temperature of the hot water (° C.) and Tg is the glass transition temperature (° C.) of the polyester prepolymer particles.
    • 本发明提供一种聚酯树脂的制造方法,其包括依次通过二羧酸成分和二醇成分的熔融缩聚得到的聚酯预聚物粒子进行热水处理和热处理。 热水处理包括使特性粘度为至少0.10dL / g至至多1.0dL / g,密度至多为1.36g / cm 3的聚酯预聚物颗粒在较高温度下与热水接触 在满足下列公式(1)的条件下,聚酯预聚物颗粒的玻璃化转变温度低于100℃,温度为40℃,(T-Tg)t≦̸ 6000(1)其中t为热水处理 时间(秒),T是热水的温度(℃),Tg是聚酯预聚物颗粒的玻璃化转变温度(℃)。