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    • 1. 发明申请
    • FILTER MEDIA FOR LIQUID PURIFICATION TO REMOVE TRACE METALS
    • 用于液体净化的过滤介质以去除痕量金属
    • US20110259818A1
    • 2011-10-27
    • US13092447
    • 2011-04-22
    • Masao TamadaNoriaki SekoYuji UekiToshihide TakedaMasanori NakanoShin-ichi KawanoMitsugu AbeKiyokazu Miyagawa
    • Masao TamadaNoriaki SekoYuji UekiToshihide TakedaMasanori NakanoShin-ichi KawanoMitsugu AbeKiyokazu Miyagawa
    • B01D39/16
    • B01D39/1623B01D2239/0216B01D2239/0414B01D2239/0622B01D2239/1233B01D2239/1291
    • Filter media for liquid purification, which can remove metal compounds or metal ions containing in polishing or washing liquids such as alkali, acid solution or ultra-pure water used for silicon wafers of semiconductors. Removal of metals from various kind of liquid such as inorganic chemicals, organic solvent, or industrial waste water are also the subject of the present invention.The Filter media made of melt-blown nonwoven substrate comprising of aethylene/norbornene copolymer represented by the following formula [1] and/or a polycyclic norbornene polymer represented by the following formulae [2](a),(b),(c) as raw material, wherein said ethylene/norbornene copolymer and said polycyclic norbornene polymer have a glass transition temperature (Tg) selected in a range from 80 to 180° C. and melt volume rate (MVR) (ISO 1133, measuring conditions: 260° C., 2.16 kg) of 30 cm3/10 min or more, and wherein said melt-blown nonwoven substrate is constituted of fibers having an average fiber diameter ranging from 1 to 30 μm is applied. On such melt-blown nonwoven substrate, ion-exchangeable or chelate group is introduced through graft polymerization of vinyl monomer. [wherein ethylene unit (X) and norbornene unit (Y) is chosen from 1 to 99 mole %] [wherein m and n represent degree of polymerization and are chosen from 1 or more.]
    • 用于液体净化的过滤介质,其可以去除在抛光或洗涤液体中所含的金属化合物或金属离子,例如用于半导体硅晶片的碱,酸溶液或超纯水。 从各种液体如无机化学品,有机溶剂或工业废水中去除金属也是本发明的主题。 由下述式[1]表示的亚乙基/降冰片烯共聚物和/或下述通式[2](a),(b),(c)所示的多环降冰片烯聚合物的熔喷非织造基材制成的过滤介质, 作为原料,其中所述乙烯/降冰片烯共聚物和所述多环降冰片烯聚合物的玻璃化转变温度(Tg)为80-180℃,熔体体积比(MVR)(ISO 1133,测量条件:260° C,2.16kg)为30cm 3/10分钟以上,其中,所述熔喷非织造基材由平均纤维直径为1〜30μm的纤维构成。 在这种熔喷非织造基材上,通过乙烯基单体的接枝聚合引入离子交换或螯合基团。 [其中乙烯单元(X)和降冰片烯单元(Y)选自1至99摩尔%] [其中m和n表示聚合度并且选自1个或更多个]。
    • 2. 发明授权
    • Laser padding material and a laser padding method using the same
    • 激光填充材料和激光填充方法使用相同
    • US5132083A
    • 1992-07-21
    • US467631
    • 1990-01-19
    • Toshihide TakedaKazuo Okamura
    • Toshihide TakedaKazuo Okamura
    • B23K35/30C22C9/06
    • C22C9/06B23K35/302F16C33/14
    • A laser padding material in accordance with the present invention comprises copper as its main component and at least one, as other contained elements, selected from the group consisting of 1-5 weight % of nickel (Ni), 0.2-5 weight % of silicon (Si), less than 1 weight % of boron (B), less than 2 weight % of phosphorus (P) and less than 3 weight % of manganese (Mn), whereby there can be easily formed at a high speed a padded layer which is high both in sliding friction resistance and in quality.In accordance with a laser padding method of the present invention, since material powder having such a composition as mentioned above is blown onto a metal base material and at the same time a laser beam is irradiated thereon in an inert gas atmosphere to thereby melt the material powder and form a padded layer, there can be easily formed at a high speed a padded layer which is high both in sliding friction resistance and in quality.
    • 根据本发明的激光填充材料包括铜作为其主要成分,并且至少一个作为其它含有元素选自1-5重量%的镍(Ni),0.2-5重量%的硅 (Si),小于1重量%的硼(B),小于2重量%的磷(P)和小于3重量%的锰(Mn),由此可以容易地高速形成填充层 这在滑动摩擦阻力和质量方面都很高。 根据本发明的激光填充方法,由于将具有上述组成的材料粉末吹到金属基材上,同时在惰性气体气氛中照射激光束,从而熔化材料 粉末形成填充层,可以容易地高速地形成滑动摩擦阻力和质量高的填充层。