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    • 2. 发明授权
    • Slide fastener made of synthetic resin
    • 合成树脂制拉链
    • US06230373B1
    • 2001-05-15
    • US09413434
    • 1999-10-06
    • Tatsumi WakaiYoshiharu YamaguchiMutsuo HirotaToyosaku OguraTsutomu Hamatani
    • Tatsumi WakaiYoshiharu YamaguchiMutsuo HirotaToyosaku OguraTsutomu Hamatani
    • A44B1900
    • A44B19/00Y10T24/25Y10T24/2518Y10T24/2539
    • Disclosed is a recyclable slide fastener having substantially all the component parts thereof made of the same type of synthetic resin material. In the fundamental embodiment of the slide fastener having a pair of fastener tapes and coupling elements fixed to the longitudinal edges of the fastener tapes, they are made of a synthetic resin material of the same type selected from the group consisting of a polyamide resin, a polyester resin, a polyolefin resin, and a vinyl chloride resin. When the slide fastener comprises sewing threads for the fixation of the coupling elements to the fastener tapes and/or core cords extended as inserted through the individual coupling elements, they are made of the same type of synthetic resin as the fastener tapes and the coupling elements. In the slide fastener of the type having upper and lower stop members provided respectively at the upper and lower ends of the rows of coupling elements or the open-link type slide fastener which has a pin-and-box separator and a pair of reinforcing sheet-like members fixed to the lower end portions of the fastener tapes, they are made of the same type of synthetic resin material as the other component parts mentioned above. Preferably the slider is also made of the same type of synthetic resin material as the other component parts mentioned above.
    • 公开了一种可回收的拉链,其具有基本上由相同类型的合成树脂材料制成的所有组成部分。 在拉链的基本实施例中,具有一对拉链带和固定在拉链带的纵向边缘上的联接元件,它们由选自聚酰胺树脂, 聚酯树脂,聚烯烃树脂和氯乙烯树脂。 当拉链包括用于将联接元件固定到通过各个联接元件插入的拉链带和/或芯线延伸的缝合线时,它们由与拉链带和联接元件相同类型的合成树脂制成 。 在具有分别设置在联接元​​件列的上端和下端的上下止挡件的类型的拉链中,或者具有销盒式分离器和一对加强片的开链式拉链 它们固定在拉链带的下端部分上,它们由与上述其它组分相同类型的合成树脂材料制成。 优选地,滑块还由与上述其它组成部件相同类型的合成树脂材料制成。
    • 5. 发明授权
    • Method for manufacture of regenerated synthetic resin product
    • 再生合成树脂制品的制造方法
    • US6056901A
    • 2000-05-02
    • US143056
    • 1998-08-28
    • Tsutomu HamataniKenshi Hamamori
    • Tsutomu HamataniKenshi Hamamori
    • A44B19/00B29B9/06B29B9/16B29B13/10B29B17/00B29B17/04B29C45/00B29C47/00B29D5/00B29K67/00B29K105/26B29L5/00B29B9/12
    • B29B9/16B29B17/0026B29B9/06B29C47/0014B29B2017/048B29C2791/001B29C2791/006B29C47/02B29K2067/00B29K2105/26Y02W30/62Y02W30/625
    • A method which is capable of manufacturing regenerated synthetic resin products, particularly slide fastener parts of regenerated synthetic resin, with good quality by using as a raw material such waste synthetic resin materials as emanate from the production line of slide fasteners of synthetic resin or arise from waste plastic products. This method includes granulating the waste synthetic resin material with a rotary blade kept in motion at a high speed and, at the same time, heating the resin material by the heat of friction with the rotary blade, heating and melting the hot granulated synthetic resin and deaerating and extruding the hot molten resin to obtain a strand, and pelletizing the extruded strand thereby forming primary pellets, subjecting the resultant primary pellets to solid-phrase polymerization in a vacuum or in an atmosphere of an inert gas at a prescribed temperature thereby forming regenerated pellets, and then forming the regenerated pellets into the shape of a product or the shape of a part aimed at. Preferably, the hot molten resin is subjected to a treatment of filtration for removal of extraneous substance at the step for forming the primary pellets.
    • 能够以合成树脂的拉链的生产线使用的废合成树脂材料作为原料,以合成树脂的拉链的制造方式生产再生合成树脂产品的再生合成树脂产品,特别是再生合成树脂的拉链部件,其质量良好的方法, 废塑料制品。 该方法包括用高速运转的旋转刀片对废合成树脂材料进行造粒,同时通过与旋转刀片的摩擦热加热树脂材料,加热熔融热粒状合成树脂, 对热熔融树脂进行脱气和挤出以获得股线,并且对挤出的股线进行造粒,从而形成初级粒料,使所得一次粒料在真空中或在惰性气体的规定温度的气氛中进行固体短时聚合,从而形成再生 颗粒,然后将再生的颗粒形成为产品的形状或部分的形状。 优选地,在形成一次粒料的步骤中,对热熔融树脂进行过滤以除去外来物质。