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    PURE LAYERED STRETCH FILM PRODUCED USING SINGLE PASS EXTRUSION RESINS
    1.
    发明公开
    PURE LAYERED STRETCH FILM PRODUCED USING SINGLE PASS EXTRUSION RESINS 审中-公开

    公开(公告)号：EP3328615A1

    公开(公告)日：2018-06-06

    申请号：EP16758311.1

    申请日：2016-08-01

    申请人： Paragon Films Inc.

    发明人： BAAB, Michael, John

    IPC分类号： B29C55/06 ,  B29D7/00

    CPC分类号： B29C39/203 ,  B29C39/24 ,  B29C39/26 ,  B29C39/38 ,  B29C55/06 ,  B29C69/001 ,  B29C2791/003 ,  B29C2793/0036 ,  B29D7/00 ,  B29L2007/008

    摘要： Methods for producing a stretch film are provided, including disposing one or more extruders in fluid communication with a stock of virgin resin; heating the virgin resin to a molten state; delivering the molten virgin resin to a die; and extruding the molten virgin resin through the die onto a casting roll, thereby creating a cast stretch film. Methods for delivering the molten virgin resin onto a casting roll of varying sizes and set temperatures; and of moving a resulting film onto a secondary chill roll of varying sizes and set temperatures, are also provided. Finally, methods for moving the film from either the casting roll or the secondary chill roll onto a slitting assembly, dividing the film using one more interior or exterior slits, and then capturing and gathering the trim waste but not reintroducing the trim waste back into the production process are also disclosed.

    BIOABSORBABLE POLYMER COMPOSITIONS EXHIBITING ENHANCED CRYSTALLIZATION AND HYDROLYSIS RATES
    3.
    发明公开
    BIOABSORBABLE POLYMER COMPOSITIONS EXHIBITING ENHANCED CRYSTALLIZATION AND HYDROLYSIS RATES 有权
    生物降解聚合酶联免疫吸附麻醉

    公开(公告)号：EP2283077A2

    公开(公告)日：2011-02-16

    申请号：EP09735198.5

    申请日：2009-04-21

    申请人： Ethicon, Inc.

    发明人： ANDJELIC, Sasa ,  FITZ, Benjamin, D. ,  ZHOU, Jianguo, Jack

    IPC分类号： C08L67/04 ,  A61L27/18

    CPC分类号： A61L31/06 ,  A61L27/18 ,  A61L27/58 ,  A61L31/148 ,  B29C71/00 ,  B29D7/00 ,  C08L67/04 ,  C08L69/00 ,  C08L101/16 ,  C08L2203/02 ,  C08L2205/02 ,  D01D5/0985 ,  D01F6/625 ,  D01F6/68 ,  D01F6/86 ,  D04H1/56 ,  Y10T442/609 ,  C08L2666/18

    摘要： A bimodal bioabsorbable polymer composition. The composition includes a first amount of a bioabsorbable polymer polymerized so as to have a first molecular weight distribution; a second amount of said bioabsorbable polymer polymerized so as to have a second molecular weight distribution having a weight average molecular weight between about 10,000 to about 50,000 Daltons, the weight average molecular weight ratio of said first molecular weight distribution to said second molecular weight distribution is at least about two to one; wherein a substantially homogeneous blend of said first and second amounts of said bioabsorbable polymer is formed in a ratio of between about 50/50 to about 95/5 weight/weight percent. Also disclosed are a medical device, a method of making a medical device and a method of melt blowing a semi-crystalline polymer blend.

    摘要翻译： 双峰生物可吸收聚合物组合物。 所述组合物包含第一量聚合以具有第一分子量分布的生物可吸收聚合物; 聚合的第二量的所述生物可吸收聚合物具有重均分子量在约10,000至约50,000道尔顿之间的第二分子量分布，所述第一分子量分布与所述第二分子量分布的重均分子量比为 至少约二比一; 其中所述第一和第二量的所述生物可吸收聚合物的基本均匀的共混物以约50/50至约95/5重量/重量％的比例形成。 还公开了医疗装置，制造医疗装置的方法和熔融吹制半结晶聚合物共混物的方法。

    Stretchend fluorine type film and method for manufacture thereof
    7.
    发明公开
    Stretchend fluorine type film and method for manufacture thereof 失效
    氟类型的拉伸薄膜及其制造方法。

    公开(公告)号：EP0140546A2

    公开(公告)日：1985-05-08

    申请号：EP84306135.9

    申请日：1984-09-07

    申请人： UNITIKA LTD.

    发明人： Murakami, Kunio

    IPC分类号： C08J5/18 ,  B29C55/12

    CPC分类号： C08J5/18 ,  B29D7/00 ,  B29K2027/12 ,  C08J2327/18

    摘要： A biaxially stretched film and a method for the manufacture thereof, containing at least 90 mot% of ethylene-tetrafluoroethylene copolymer, having a value of crystallization property, AT, expressed by the equation wherein

    T m (melting point) stands for the peak melting temperature (°C) found when a sample is heated at a temperature increase rate of 20°C/minute using differential scanning calorimeter (DSC), and
    T c (crystallizing temperature during fall of temperature) stands for the peak crystallizing temperature (°C) found when the sample is cooled at a temperature decrease rate of 80°C/minute from the melting point plus 20°C using said DSC,
    of not less than 15°C and not more than 60°C,
    prepared by a method comprising heating a thermoplastic resin containing at least 90 mol% of ethylene-tetrafluoroethylene copolymer to form a molten resin, extruding the molten resin through a die, and cooling the extruded molten resin at a cooling speed of at least 70°C/second in the range of the melting point minus 10°C to the melting point minus 100°C to thereby form a film while simultaneously biaxially stretching said film to at least two times the original size in each of the longitudinal and lateral directions.

    Method and apparatus for preparing a high strength sheet material
    10.
    发明公开
    Method and apparatus for preparing a high strength sheet material 失效
    的方法和装置，用于生产高强度幅状材料。

    公开(公告)号：EP0090380A1

    公开(公告)日：1983-10-05

    申请号：EP83103001.0

    申请日：1983-03-25

    申请人： Rasmussen, Ole-Bendt

    发明人： Rasmussen, Ole-Bendt

    IPC分类号： B29D7/01 ,  B32B27/08

    CPC分类号： B32B38/1825 ,  B29C55/023 ,  B29C71/00 ,  B29D7/00 ,  B29K2023/06 ,  B29K2023/083 ,  B32B27/32 ,  B32B2307/518 ,  B32B2323/04 ,  Y10T156/1008

    摘要： A method of preparing a high strength sheet material comprising (a) forming a laminate comprising at least two layers of a thermoplastic polymer material, each layer having a fibrillar grain structure providing a predominant direction of s p littability in each said layer, and wherein the layers are bonded to one another with the said predominant directions of splittability transverse to each other, (b) biaxially orienting the molecules of said layers by stretching the layers in substantially uniaxial steps, the transverse streching being effected by applying pressure to the surface of the laminate along lines extending substantially in the longitudinal direction of the laminate to impart thereto a waved configuration, and (c) subjecting the biaxially oriented laminate to a heat treatment while allowing at least 7% shrinkage of the laminate to take place in at least its transverse direction.

    摘要翻译： 制备高强度薄片材料，其包括（a）形成的层压体包含热塑性聚合物材料制成的至少两个层，每层具有在每个所述层中提供的零散能力的主要方向上的纤维状晶粒结构，和worin层是的方法 键合到具有片段化能力横向的所述主要方向海誓山盟彼此，（b）中的双轴拉伸在大致单轴性步骤的层定向所述层的分子，横向streching通过施加压力沿实现的层叠体的表面 在层合体的长度方向上延伸线，以赋予其上的波形构造，以及（c）使所述双轴取向叠层进行热处理，同时使层叠体的至少7％的收缩发生在至少在其横向方向上。