Process for making highly crystalline shaped part from pet or pen
    2.
    发明授权
    Process for making highly crystalline shaped part from pet or pen 有权
    从宠物或笔制作高度结晶的部分的过程

    公开(公告)号:US09475217B2

    公开(公告)日:2016-10-25

    申请号:US14166313

    申请日:2014-01-28

    Inventor: Zahir Bashir

    CPC classification number: B29C43/003 B29C43/006 B29K2067/00 B29K2995/0041

    Abstract: A process for making a shaped part from a polymer selected from polyethylene terephthalate (PET) and polyethylene terephthalate (PET) and polyethylene naphthalate (PEN) by using a compacting tool comprising a die having a cavity and a punch having an outer surface. The process comprises the steps of: a) placing particles of the polymer in the cavity of the die heated to a compaction temperature, wherein the polymer has an intrinsic viscosity of at least 0.45 dL/g wherein the particles are a mixture of first particles with a particle size of 0.5-4000 μm and second particles with a particle size of 1000-4000 μm b) pressing the particles in the die cavity at a pressure of at least 3 MPa for 5-15 minutes while maintaining the temperature of the die at the compaction temperature and c) removing the shaped part from the die cavity. When the polymer is PET, the compaction temperature is 235-259° C. When the polymer is PEN, the compaction temperature is 250-275 ° C.

    Abstract translation: 通过使用包括具有空腔的模具和具有外表面的冲头的压实工具从由聚对苯二甲酸乙二醇酯(PET)和聚对苯二甲酸乙二醇酯(PET)和聚萘二甲酸乙二醇酯(PET)和聚萘二甲酸乙二醇酯(PEN)制成成型部件的方法。 该方法包括以下步骤:a)将聚合物的颗粒放置在加热到压实温度的模头的空腔中,其中聚合物的特性粘度为至少0.45dL / g,其中颗粒是第一颗粒与 粒径为0.5-4000μm的颗粒和粒径为1000-4000μm的第二颗粒b)将模具中的颗粒在至少3MPa的压力下压制5-15分钟,同时将模具的温度保持在 压实温度和c)从模腔中去除成形部件。 当聚合物为PET时,压实温度为235-259℃。当聚合物为PEN时,压实温度为250-275℃。

    PROCESS FOR MAKING HIGHLY CRYSTALLINE SHAPED PART FROM PET OR PEN
    5.
    发明申请
    PROCESS FOR MAKING HIGHLY CRYSTALLINE SHAPED PART FROM PET OR PEN 有权
    从PET或PEN制造高度晶体形状的部件的工艺

    公开(公告)号:US20140213753A1

    公开(公告)日:2014-07-31

    申请号:US14166313

    申请日:2014-01-28

    Inventor: Zahir Bashir

    CPC classification number: B29C43/003 B29C43/006 B29K2067/00 B29K2995/0041

    Abstract: A process for making a shaped part from a polymer selected from polyethylene terephthalate (PET) and polyethylene terephthalate (PET) and polyethylene naphthalate (PEN) by using a compacting tool comprising a die having a cavity and a punch having an outer surface. The process comprises the steps of: a) placing particles of the polymer in the cavity of the die heated to a compaction temperature, wherein the polymer has an intrinsic viscosity of at least 0.45 dL/g and the particles have an average particle size of 0.5-4000 μm, b) pressing the particles in the die cavity at a pressure of at least 3 MPa for 5-15 minutes while maintaining the temperature of the die at the compaction temperature and c) removing the shaped part from the die cavity. When the polymer is PET, the compaction temperature is 235-259° C. When the polymer is PEN, the compaction temperature is 250-275° C.

    Abstract translation: 通过使用包括具有空腔的模具和具有外表面的冲头的压实工具从由聚对苯二甲酸乙二醇酯(PET)和聚对苯二甲酸乙二醇酯(PET)和聚萘二甲酸乙二醇酯(PET)和聚萘二甲酸乙二醇酯(PEN)制成成型部件的方法。 该方法包括以下步骤:a)将聚合物的颗粒放置在加热到压实温度的模头的空腔中,其中聚合物的特性粘度为至少0.45dL / g,并且颗粒的平均粒度为0.5 -4000μm,b)在至少3MPa的压力下将模具中的颗粒按压5-15分钟,同时将模具的温度保持在压实温度,并且c)从模腔中去除成形部件。 当聚合物为PET时,压实温度为235-259℃。当聚合物为PEN时,压实温度为250-275℃。

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