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    • 4. 发明授权
    • Method of manufacturing powder injection molded part
    • 粉末注射成型件的制造方法
    • US5746960A
    • 1998-05-05
    • US681315
    • 1996-07-22
    • Takao KasaiKenichi YoshikawaShigeru SaitoMasami Hoshi
    • Takao KasaiKenichi YoshikawaShigeru SaitoMasami Hoshi
    • B22F1/00B22F3/10B22F3/22C04B35/638B29C71/00
    • C04B35/638B22F1/0059B22F3/1021B22F3/22B22F2001/0066
    • This manufacturing method of a powder injection molded part includes the steps of using a binder composition containing at least 2 kinds of thermoplastic binder components having an evaporation temperature higher than the injection molding temperature and a different evaporation initiating temperature from each other, elevating the temperature of a molded body above the evaporation initiating temperature of the binder component having the lowest evaporation initiating temperature rapidly, removing the binder component having the lowest evaporation initiating temperature from the molded body by holding this temperature, and thereafter, removing all binder components by elevating up to a temperature not lower than the evaporation initiating temperature of the binder component having the highest evaporation initiating temperature. By this method, the form unstability of final parts, which is a problem of the prior art, is resolved, dimensional accuracy is satisfied, and it is possible to shorten debinding times.
    • 该粉末注射成型部件的制造方法包括以下步骤:使用含有至少2种蒸发温度高于注射成型温度的热塑性粘合剂成分和不同的蒸发开始温度的粘合剂组合物,提高其温度 高于蒸发起始温度最低的粘合剂组分的蒸发起始温度的成型体,通过保持该温度从成型体中除去具有最低蒸发起始温度的粘合剂组分,然后通过升高至 不低于具有最高蒸发起始温度的粘合剂组分的蒸发开始温度的温度。 通过这种方法,解决了现有技术问题的最终部件的形状不稳定性,满足尺寸精度,并且可以缩短脱脂时间。
    • 5. 发明授权
    • Film for wrapping
    • 包装膜
    • US06833420B1
    • 2004-12-21
    • US09719086
    • 2001-03-02
    • Kenichi YoshikawaAkira Kamikuzu
    • Kenichi YoshikawaAkira Kamikuzu
    • C08F22010
    • C08J5/18C08J2323/08C08F210/02C08F220/06C08F2220/1825C08F2500/26C08F2500/12
    • A film having a large tensile stress in the machine direction, excellent mechanical properties and stretch-wrapping property, and that is less broken at the time of wrapping, can be favorably torn off in the transverse direction, can be intimately adhered on the container walls to be wrapped, and excellently restores its shape after it is depressed and deformed as a result of wrapping. The film for stretch-wrapping is formed of a resin composition containing, as a chief component, an ethylene/(meth)acrylic acid/(meth)acrylic acid ester terpolymer that contains not more than 7% by weight of a (meth)acrylic acid ester unit, and, optionally, containing an anti-fogging agent or a tackifier.
    • 在纵向具有大的拉伸应力,优异的机械性能和拉伸包装性,并且在包装时的断裂较小的薄膜可以有利地在横向上被撕开,可以紧密地粘附在容器壁上 被包裹,并且在由于包裹而被压下和变形之后,其形状恢复良好。 用于拉伸包装的膜由含有不超过7重量%的(甲基)丙烯酸酯的乙烯/(甲基)丙烯酸/(甲基)丙烯酸酯三元共聚物作为主要成分的树脂组合物形成。 酸酯单元,和任选地含有防雾剂或增粘剂。
    • 6. 发明授权
    • Small-sized electronic instrument
    • 小型电子仪器
    • US5235564A
    • 1993-08-10
    • US764840
    • 1991-09-24
    • Masami FukudaMitsutoshi NakamuraJunji NagasawaKenichi YoshikawaKouichi NakajimaFumio Kouyama
    • Masami FukudaMitsutoshi NakamuraJunji NagasawaKenichi YoshikawaKouichi NakajimaFumio Kouyama
    • G04C3/14G04B29/04
    • G04G17/00
    • A small-sized electronic instrument such as an electronic wrist watch and others in which a plurality of parts are stacked and firmly held together by tightening a screw. The electronic instrument includes a base plate and a screw housing portion, which are integrally molded of a hard plastic material. The screw housing portion includes a bore formed therethrough and adapted to receive a self-tapping screw. When the self-tapping screw is threadingly received in the bore of the screw housing portion, a plurality of parts stacked around the screw housing portion are firmly tightened and held together. The screw housing portion has a shoulder including a step formed therein at the middle portion between the opposite ends. On assembly, the step engages one of the stacked parts. Even if the screw housing portion is pulled upwardly by the tightened self-tapping screw, the part sandwiched between the self-tapping screw and the step limits the upward movement of the screw housing portion on tapping. Thus, the screw housing portion can be prevented from being broken off from the base plate when the self-tapping screw is further tightened against the base plate.
    • 诸如电子手表等小型电子仪器,其中通过拧紧螺丝将多个部件堆叠并牢固地保持在一起。 电子仪器包括由硬塑料材料整体模制的基板和螺钉壳体部分。 螺钉收纳部分包括形成在其中的孔,并适于接收自攻螺钉。 当自攻螺钉被螺纹地接收在螺钉壳体部分的孔中时,在螺钉壳体部分周围堆叠的多个部件被牢固地紧固并保持在一起。 螺钉收纳部分具有肩部,该肩部包括在相对端部之间的中间部分处形成的台阶。 在组装时,该步骤接合其中一个堆叠部件。 即使通过紧固的自攻螺钉将螺钉收纳部分向上拉动,夹在自攻螺钉和台阶之间的零件也限制了螺纹壳体部分在攻丝时的向上运动。 因此,当自攻螺钉进一步紧固在基板上时,可以防止螺钉收纳部分与基板断裂。
    • 7. 发明授权
    • Flame retardant composition with improved fluidity, flame retardant resin composition and molded products
    • 具有改善流动性的阻燃组合物,阻燃树脂组合物和模制产品
    • US07465761B2
    • 2008-12-16
    • US10590350
    • 2005-02-22
    • Hisashi MuraseMasaru NagahamaKenichi YoshikawaYuki TanakaTakayoshi KanedaAkihiro Yamaki
    • Hisashi MuraseMasaru NagahamaKenichi YoshikawaYuki TanakaTakayoshi KanedaAkihiro Yamaki
    • C08K3/3462C08K5/3492
    • C08K5/34928C08K5/5205C08K9/06C08L23/02
    • The invention provides a flame retardant composition comprising 1-99 weight parts of a salt of piperazine and an inorganic compound selected from among piperazine phosphate, piperazine pyrophosphate and piperazine polyphosphate, or a mixture of two or more of these piperazine salts (ingredient (A)), 99-1 weight parts of a salt of melamine and an inorganic compound selected from among melamine phosphate, melamine pyrophosphate and melamine polyphosphate, or a mixture of two or more of these melamine salts (ingredient (B)) (wherein, the sum of ingredient (A) and ingredient (B) is 100 weight parts), 0-50 weight parts of an arbitrary ingredient (ingredient (C)), and 0.01-20 weight parts of a silicone oil having a viscosity at 25° C. of 5000 mm2/s (ingredient (D)) which is added thereto. This flame retardant not only has superior flame retarding properties, but also has enhanced powder properties and anti-hygroscopic properties, and when it is added to a resin, there is little change of electrical resistance.
    • 本发明提供一种阻燃组合物,其包含1-99重量份的哌嗪盐和选自磷酸哌嗪,焦磷酸哌嗪和多哌啶哌嗪的无机化合物,或这些哌嗪盐(成分(A))中的两种或更多种的混合物, ),99-1重量份的三聚氰胺盐和选自磷酸三聚氰胺,焦磷酸三聚氰胺和多聚磷酸三聚氰胺的无机化合物,或这些三聚氰胺盐(成分(B))中的两种或更多种的混合物)(其中,总和 成分(A)和成分(B)为100重量份),0-50重量份任意成分(成分(C))和0.01-20重量份在25℃下具有粘度的硅油。 为5000mm 2 / s(成分(D))。 该阻燃剂不仅具有优异的阻燃性能,而且具有增强的粉末性能和抗吸湿性能,并且当其添加到树脂中时,电阻几乎没有变化。