利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

12 条记录 (耗时 0.051 秒)

    Screw designs having improved performance with low melting PET resins
    9.
    发明授权
    Screw designs having improved performance with low melting PET resins 有权
    具有低熔点PET树脂性能的螺杆设计

    公开(公告)号：US08057726B2

    公开(公告)日：2011-11-15

    申请号：US12471891

    申请日：2009-05-26

    申请人： Marcus David Shelby ,  Michael Eugene Donelson ,  Frederick Leslie Colhoun ,  Steven Lee Stafford ,  Mark Edward Stewart ,  Stephen Weinhold ,  Edward Lewis Boochard ,  Robert Noah Estep

    发明人： Marcus David Shelby ,  Michael Eugene Donelson ,  Frederick Leslie Colhoun ,  Steven Lee Stafford ,  Mark Edward Stewart ,  Stephen Weinhold ,  Edward Lewis Boochard ,  Robert Noah Estep

    IPC分类号： B29C45/60

    CPC分类号： B29C33/76 ,  B29C45/0001 ,  B29C45/60 ,  B29C47/0004 ,  B29C47/0014 ,  B29C47/0021 ,  B29C47/0023 ,  B29C47/60 ,  B29C47/6018 ,  B29K2067/00 ,  B29K2105/256

    摘要： Disclosed is a process for a melt processing a polyethylene terephthalate resin characterized by one or more of the following. The polyester particles may have at least two melting peaks wherein one of the at least two melting peaks is a low peak melting point with a range from 140° C. to 220° C., or from 140° C. to 230° C., and having a melting endothermic area of at least the absolute value of 1 J/g. The polyester particles may have one or more melting peaks at least one of which when measured on a DSC first heating scan has a heating curve departing from a baseline in the endothermic direction at a temperature of less than or equal to 200° C. The polyester particles may have an It.V. at their surface which is less than 0.25 dL/g higher than the It.V. at their center. The polyester particles may have not been solid stated. The melt processing device comprises a screw with a total length, L, a feed zone length in the range from 0.16L and 0.45L, a taper angle, φ, in the range from 0.5 degrees and 5.0 degrees and a compression ratio, CR, in the range from 2.0 and 5.0.

    摘要翻译： 公开了一种熔融加工聚对苯二甲酸乙二醇酯树脂的方法，其特征在于以下一种或多种。 聚酯颗粒可以具有至少两个熔融峰，其中至少两个熔融峰中的一个是低峰值熔点，范围为140℃至220℃，或140℃至230℃。 并且具有至少绝对值为1J / g的熔融吸热面积。 聚酯颗粒可以具有一个或多个熔融峰，其中至少一个在DSC第一次加热扫描中测量时具有在小于或等于200℃的温度下从吸热方向的基线离开的加热曲线。聚酯 颗粒可能有一个It.V. 在它们的表面上比It.V高出0.25dL / g。 在他们的中心。 聚酯颗粒可能不是固体的。 熔融加工装置包括总长度为L的螺杆，在0.16L和0.45L范围内的进料区长度，在0.5度和5.0度范围内的锥角＆phgr，压缩比CR 在2.0和5.0之间。

    SCREW DESIGNS HAVING IMPROVED PERFORMANCE WITH LOW MELTING PET RESINS
    10.
    发明申请
    SCREW DESIGNS HAVING IMPROVED PERFORMANCE WITH LOW MELTING PET RESINS 有权
    具有低熔点PET树脂改进性能的螺丝设计

    公开(公告)号：US20090315219A1

    公开(公告)日：2009-12-24

    申请号：US12471891

    申请日：2009-05-26

    申请人： Marcus David Shelby ,  Michael Eugene Donelson ,  Frederick Leslie Colhoun ,  Steven Lee Stafford ,  Mark Edward Steward ,  Stephen Weinhold ,  Edward Lewis Boochard ,  Robert Noah Estep

    发明人： Marcus David Shelby ,  Michael Eugene Donelson ,  Frederick Leslie Colhoun ,  Steven Lee Stafford ,  Mark Edward Steward ,  Stephen Weinhold ,  Edward Lewis Boochard ,  Robert Noah Estep

    IPC分类号： B29C45/48

    CPC分类号： B29C33/76 ,  B29C45/0001 ,  B29C45/60 ,  B29C47/0004 ,  B29C47/0014 ,  B29C47/0021 ,  B29C47/0023 ,  B29C47/60 ,  B29C47/6018 ,  B29K2067/00 ,  B29K2105/256

    摘要： Disclosed is a process for a melt processing a polyethylene terephthalate resin characterized by one or more of the following. The polyester particles may have at least two melting peaks wherein one of the at least two melting peaks is a low peak melting point with a range from 140° C. to 220° C., or from 140° C. to 230° C., and having a melting endothermic area of at least the absolute value of 1 J/g. The polyester particles may have one or more melting peaks at least one of which when measured on a DSC first heating scan has a heating curve departing from a baseline in the endothermic direction at a temperature of less than or equal to 200° C. The polyester particles may have an It.V. at their surface which is less than 0.25 dL/g higher than the It.V. at their center. The polyester particles may have not been solid stated. The melt processing device comprises a screw with a total length, L, a feed zone length in the range from 0.16L and 0.45L, a taper angle, φ, in the range from 0.5 degrees and 5.0 degrees and a compression ratio, CR, in the range from 2.0 and 5.0.

    摘要翻译： 公开了一种熔融加工聚对苯二甲酸乙二醇酯树脂的方法，其特征在于以下一种或多种。 聚酯颗粒可以具有至少两个熔融峰，其中至少两个熔融峰中的一个是低峰值熔点，范围为140℃至220℃，或140℃至230℃。 并且具有至少绝对值为1J / g的熔融吸热面积。 聚酯颗粒可以具有一个或多个熔融峰，其中至少一个在DSC第一次加热扫描中测量时具有在小于或等于200℃的温度下从吸热方向的基线离开的加热曲线。聚酯 颗粒可能有一个It.V. 在它们的表面上比It.V高出0.25dL / g。 在他们的中心。 聚酯颗粒可能不是固体的。 熔融加工装置包括总长度为L的螺杆，进给区长度为0.16L和0.45L，锥角φi为0.5度和5.0度，压缩比为CR， 在2.0和5.0之间。