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    • 3. 发明授权
    • Food tray and method of making the same
    • 食物托盘和制作方法
    • US5318811A
    • 1994-06-07
    • US998380
    • 1992-12-30
    • Frank R. Nissel
    • Frank R. Nissel
    • A47J27/088B29C51/00B29D22/00B65D81/34B23K15/10B32B1/08
    • B29D22/003B29C51/002B65D81/3453B29K2067/00B29L2031/22Y10S220/12Y10S220/14Y10T428/1352Y10T428/139Y10T428/1397
    • A food container thermoformed from co-extruded polyethylene terephthalate sheet, a portion of which contains a nucleating agent. The food container comprises an opaque or colored tray formed from nucleated polyethylene terephthalate in a crystalline state so that the tray remains rigid at elevated temperatures. The food container also comprises a substantially transparent cover formed from non-nucleated polyethylene terephthalate in an amorphous state. The food container also comprises a hinge that integrally connects the cover to the tray. The method for producing this food container comprises the steps of co-extruding nucleated and non-nucleated polyethylene terephthalate into a continuous sheet; independently controlling the temperature of the mold portions for the cover, tray and hinge components of the food container; thermoforming the polyethylene terephthalate sheet; maintaining the tray component of the container at a temperature sufficient to crystallize the polyethylene terephthalate in the tray component; and cooling the cover component of the container to a temperature sufficient to produce polyethylene terephthalate in an amorphous state.
    • 由共挤出的聚对苯二甲酸乙二醇酯薄片热成型的食品容器,其中一部分含有成核剂。 食品容器包括由结晶状态的有核聚对苯二甲酸乙二醇酯形成的不透明或着色的托盘,使托盘在高温下保持刚性。 食品容器还包括由非成核聚对苯二甲酸乙二醇酯形成的基本上透明的覆盖层,其处于无定形状态。 食物容器还包括将盖整体连接到托盘的铰链。 生产该食品容器的方法包括以下步骤:将成核和非成核聚对苯二甲酸乙二醇酯共挤出成连续片; 独立地控制食品容器的盖,托盘和铰链部件的模具部分的温度; 热成型聚对苯二甲酸乙二酯片; 将容器的托盘部件保持在足以使聚对苯二甲酸乙二醇酯结晶在托盘部件中的温度; 并将容器的盖部件冷却至足以产生无定形状态的聚对苯二甲酸乙二醇酯的温度。
    • 5. 发明授权
    • Food tray and method of making the same
    • 食物托盘和制作方法
    • US5318810A
    • 1994-06-07
    • US998393
    • 1992-12-30
    • Frank R. Nissel
    • Frank R. Nissel
    • A47J27/088B29C51/00B29C51/42B29K67/00B29L22/00B32B1/02B65D43/16B65D81/34B32B1/08B65D6/00
    • B65D43/162B32B1/02B65D81/3453B65D2251/105Y10S220/12Y10S220/14Y10T428/1352Y10T428/139Y10T428/1397
    • A food container thermoformed from nucleated polyethylene terephthalate sheet. The food container comprises an opaque or colored tray formed from nucleated polyethylene terephthalate in a crystalline state so that the tray remains rigid at elevated temperatures. The food container also comprises a substantially transparent cover formed from nucleated polyethylene terephthalate in an amorphous state. The food container also comprises a hinge that connects the cover to the tray. The method for producing this food container comprises the steps of extruding nucleated polyethylene terephthalate into a continuous sheet; independently controlling the temperature of the mold portions for the cover, tray and hinge components of the food container; thermoforming the nucleated polyethylene terephthalate sheet; maintaining the tray component of the container at a temperature sufficient to crystallize the nucleated polyethylene terephthalate in the tray component; and cooling the cover component of the container to a temperature sufficient to produce nucleated polyethylene terephthalate in an amorphous state.
    • 由成核聚对苯二甲酸乙二醇酯薄片热成型的食品容器。 食品容器包括由结晶状态的有核聚对苯二甲酸乙二醇酯形成的不透明或着色的托盘,使托盘在高温下保持刚性。 食品容器还包括由无定形态的有核聚对苯二甲酸乙二醇酯形成的基本上透明的盖。 食物容器还包括将盖连接到托盘的铰链。 制造该食品容器的方法包括将成核聚对苯二甲酸乙二醇酯挤出成连续片材的步骤; 独立地控制食品容器的盖,托盘和铰链部件的模具部分的温度; 热成型有核聚对苯二甲酸乙二酯片材; 将容器的托盘部件保持在足以使成核聚对苯二甲酸乙二醇酯结晶在托盘部件中的温度; 并将容器的盖部件冷却至足以产生无定形状态的有核聚对苯二甲酸乙二醇酯的温度。
    • 7. 发明授权
    • Method and apparatus for making multiple-layered sheets
    • 制造多层纸的方法和装置
    • US3959431A
    • 1976-05-25
    • US534428
    • 1974-12-19
    • Frank R. Nissel
    • Frank R. Nissel
    • B29C47/06B29D7/04B29F3/00
    • B29C47/145B29C47/065B29C47/0019B29C47/0021
    • A rod of heat-plastified material is extruded and passed through an adaptor section, during delivery to a sheet extruder. In the adaptor section, another material or substance is fed into the interior of the just-extruded rod, such that, upon the rod subsequently being expanded in one direction, and reduced in thickness in another direction, in a sheet-extruder, a multiple-layered laminate may be provided, in that the substance introduced into the rod may differ from the material of the rod. Variations may be made in the manner of introduction of other material into the rod, in order to obtain various numbers of layers, and desired distributions of introduced material through the rod.
    • 在输送到片材挤出机中时,将热塑性材料棒挤出并通过适配器部分。 在适配器部分中,将另一种材料或物质进料到刚挤出的棒的内部,使得当杆沿随后一个方向膨胀并且在另一个方向上沿厚度方向减小时,在片材挤出机中,多个 可以提供层压层压板,因为引入杆中的物质可能不同于杆的材料。 可以以将其它材料引入棒中的方式进行变化,以便获得各种数量的层,以及通过杆的引入材料的期望分布。