Screw-type extruder having a starting valve and throttle
    53.
    发明授权
    Screw-type extruder having a starting valve and throttle 失效
    具有启动阀和节气门的螺杆式挤出机

    公开(公告)号:US4984977A

    公开(公告)日:1991-01-15

    申请号:US341566

    申请日:1989-04-21

    IPC分类号: B29C47/92

    摘要: A screw-type extruder has a housing and at least one screw which is rotatably arranged in a bore in the housing and which conveys material while melting or plasticizing in a conveying direction to a discharge channel, a starting valve and a throttle for generating a back pressure on the molten or plasticized material being arranged in the area of the discharge channel. In order to avoid long flow paths of the molten or plasticized material via the throttle and starting valve, there is provided a starting valve/throttle unit having a starting valve and throttle body which is displaceable at right angles to the conveying direction out of a starting position into a throttling position.

    摘要翻译: 螺杆式挤出机具有壳体和至少一个螺杆,该螺杆可旋转地布置在壳体中的孔中,并且在沿输送方向熔化或塑化时输送材料到排出通道,起动阀和用于产生背面的节气门 熔融或塑化材料上的压力被布置在排放通道的区域中。 为了避免经由节流阀和启动阀的熔融或塑化材料的长流路,提供了一个启动阀/节流阀单元,其具有起动阀和节气门体,该起动阀和节流阀本体可与起动器的输送方向成直角地移动 进入节流位置。

    Intensely colored red effect pigments
    58.
    发明授权
    Intensely colored red effect pigments 有权
    强烈的红色效果颜料

    公开(公告)号:US07156913B2

    公开(公告)日:2007-01-02

    申请号:US11331449

    申请日:2006-01-13

    IPC分类号: C09C1/24 C09C1/28 C09C3/06

    摘要: The present invention relates to intensely colored red effect pigments comprising iron oxide-coated SiO2 flakes, where the total thickness of the effect pigments is not greater than 500 nm (+/−30 nm). The present invention likewise relates to processes for the preparation of these pigments in which SiO2 flakes are coated with iron oxide, where the thicknesses of the SiO2 flakes and of the iron-oxide layers are selected in such a way that the total thickness of the red effect pigments is not greater than 500 nm (+/−30 nm), and to the use of these pigments in cosmetics, paints, coatings, plastics, films, in security printing, in security features in documents and identity papers, for coloring seed, for coloring foods or in medicament coatings and for the preparation of pigment compositions and dry preparations.

    摘要翻译: 本发明涉及包含氧化铁涂覆的SiO 2薄片的强烈着色的红色效果颜料,其中效应颜料的总厚度不大于500nm(+/- 30nm)。 本发明同样涉及制备这些颜料的方法,其中SiO 2薄片用氧化铁涂覆,其中SiO 2薄片和铁的厚度 选择氧化物层,使得红色效果颜料的总厚度不大于500nm(+/- 30nm),并且这些颜料在化妆品,油漆,涂料,塑料,薄膜, 在安全印刷中,在文件和身份证件的安全特征中,用于着色种子,着色食品或在药物涂层中以及制备颜料组合物和干燥制剂。