Amorphous, drawn, cup-like thermoplastic PET element of 10-25%
crystallinity and monoaxial orientation in side wall
    19.
    发明授权
    Amorphous, drawn, cup-like thermoplastic PET element of 10-25% crystallinity and monoaxial orientation in side wall 失效
    非晶,拉伸,杯状热塑性PET元素,其结晶度为10-25%,侧壁为单轴取向

    公开(公告)号:US4374166A

    公开(公告)日:1983-02-15

    申请号:US154889

    申请日:1980-05-30

    摘要: The invention relates to an element of a thermoplastic of the polyester or polyamide type, and preferably of polyethylene terephthalate, the element consisting of an edge part which surrounds a body in an arrangement in which the latter is sunk relative to the edge part. The element is formed from a blank of mainly amorphous material or from a material having a crystallinity of less than 10%, the blank being, for example, a flat plate, a blank shell or the like. The body or parts thereof are shaped by stretching the blank until that material which is located within the material sections of the blank flows to from the edge part in the element, the material stretched to flowing in the body assuming a crystallinity of between 10 and 25%, while the crystallinity in the material in the edge part and in the unstretched parts retaining its original value of less than 10%. There is also disclosed a process and equipment for manufacturing the element.

    摘要翻译: 本发明涉及聚酯或聚酰胺类型的热塑性塑料的元件,优选聚对苯二甲酸乙二醇酯,该元件由围绕主体的边缘部分组成,后者相对于边缘部分沉没。 该元件由主要为无定形材料的坯料或具有小于10%的结晶度的材料形成,坯料例如是平板,坯壳等。 主体或其部分通过拉伸坯件成形,直到位于坯料的材料部分内的材料从元件的边缘部分流出,材料在体内被拉伸以流动,呈现10至25的结晶度 %,而在边缘部分和未拉伸部分的材料中的结晶度保持其原始值小于10%。 还公开了用于制造元件的工艺和设备。