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    • 2. 发明授权
    • Sulfate-free electroless copper plating baths
    • 无硫酸化无电镀铜浴
    • US5306336A
    • 1994-04-26
    • US979097
    • 1992-11-20
    • Nicholas M. MartyakBruce F. MonzykHenry H. Chien
    • Nicholas M. MartyakBruce F. MonzykHenry H. Chien
    • C23C18/40C23C18/38
    • C23C18/405
    • Sulfate-free electroless copper baths comprising cupric ions, formaldehyde, formate ions, hydroxyl ions, a copper counterion, e g. preferably a monovalent anion such as acetate, nitrate or formate, and copper chelant such as an alkali metal salt of aminotris(methylenephosphonic acid), biscarboxymethylaspartic acid, ethylenediaminetetra(methylenephosphonic acid), diethylenetriaminepenta(methylenephosphonic acid), gluconic acid, 1-hydroxyethylidene-1,1-diphosphonic acid, mucic acid, D-saccharac acid, tartaric acid and N,N,N',N'-tetrakis(2-hydroxypropyl)ethylenediamine are amenable to the recovery of copper, e.g. from purge streams, using the methods and apparatus including solvent extraction, e.g. employing hydroxamic acid extractants, anion filtration, ion-exchange and chelant precipitation.
    • 含有铜离子,甲醛,甲酸根离子,羟基离子,铜抗衡离子的无硫酸盐化学镀铜浴。 优选一价阴离子如乙酸盐,硝酸盐或甲酸盐,以及铜螯合剂如氨基三(亚甲基膦酸)的碱金属盐,双羧甲基天冬氨酸,乙二胺四(亚甲基膦酸),二亚乙基三胺五(亚甲基膦酸),葡糖酸,1-羟基亚乙基 - 1,1-二膦酸,粘酸,D-糖酸,酒石酸和N,N,N',N'-四(2-羟丙基)乙二胺可以回收铜,例如 使用包括溶剂萃取的方法和设备,例如洗涤流。 使用异羟肟酸萃取剂,阴离子过滤,离子交换和螯合沉淀。
    • 4. 发明授权
    • Electroless nickel plating baths
    • 化学镀镍浴
    • US5258061A
    • 1993-11-02
    • US979100
    • 1992-11-20
    • Nicholas M. MartyakBruce F. MonzykHenry H. Chien
    • Nicholas M. MartyakBruce F. MonzykHenry H. Chien
    • C23C18/34C23C18/36
    • C23C18/34
    • Aqueous electroless nickel plating solutions comprising a water soluble nickel salt associated with a neutral zwitterion, e.g. alanine or glycine, and/or monovalent anion, e.g. lactate, nitrate, hypophosphite, acetate, sulfamate, hydrochloride, formate, propionate, trichloroacetate, trifluoroacetate, methanesulfonate, glycolate, aspartate or pyruvate, as counterion and chelant, a neutral, e.g. borate, or monovalent, e.g. hypophosphite, reducing agent, and a non-thiourea stabilizer, e.g. protonated dimethylamine or dimethylaminopropylamine or 2-hydroxyethanesulfonic acid. Valuable components of spent baths, e.g. nickel and neutral or monovalent anion species, can be advantageously recycled by employing solvent extraction and anion filtration operations.
    • 包含与中性两性离子相关的水溶性镍盐的水性无电镀镍溶液,例如 丙氨酸或甘氨酸,和/或一价阴离子,例如 乳酸盐,硝酸盐,次磷酸盐,乙酸盐,氨基磺酸盐,盐酸盐,甲酸盐,丙酸盐,三氯乙酸盐,三氟乙酸盐,甲磺酸盐,乙醇酸盐,天冬氨酸盐或丙酮酸盐,作为抗衡离子和螯合剂。 硼酸盐,或单价的。 次磷酸盐,还原剂和非硫脲稳定剂,例如, 质子化二甲胺或二甲基氨基丙胺或2-羟基乙磺酸。 废浴的有价值的成分,例如 镍和中性或单价阴离子物质可以有利地通过使用溶剂萃取和阴离子过滤操作来回收。
    • 5. 发明授权
    • Electroless nickel plating solution
    • 化学镀镍溶液
    • US5306334A
    • 1994-04-26
    • US916572
    • 1992-07-20
    • Nicholas M. MartyakBruce F. Monzyk
    • Nicholas M. MartyakBruce F. Monzyk
    • C23C18/36D06M11/83
    • D06M11/83C23C18/36
    • Phosphorus-containing, crystalline, nickel-coated fabric, wherein said nickel contains 1 to 6 weight percent phosphorus, has crystallites greater than 3 nanometers and has a surface resistivity of less than 1 ohm/square is deposited onto a substrate a surface which is catalytic to electroless deposition of nickel by immersing the substrate into an electroless nickel plating solution consisting essentially of nickel salt, one or more organic acids, hypophosphite reducing agent, thiourea and ammonia and essentially no heavy metal, wherein the concentration of said thiourea is less than 1 ppm, maintained at a pH of 6.5 to 8.5 and a temperature less than 60.degree. C. Preferred plating solutions comprise essentially no lead or cadmium and have a molar ratio of nickel to hypophosphite in said solution is 0.4 to 0.55. Preferred organic acids are selected from the group consisting of lactic acid, acetic acid, propionic acid, pyruvic acid, aspartic acid and glycolic acid.
    • 含磷的结晶镍涂层织物,其中所述镍含有1至6重量百分比的磷,具有大于3纳米的微晶并且具有小于1欧姆/平方的表面电阻率沉积在基底上,所述表面是催化剂 通过将基底浸入基本上由镍盐,一种或多种有机酸,次亚磷酸盐还原剂,硫脲和氨基本上不含重金属组成的化学镀镍溶液中来进行镍的无电沉积,其中所述硫脲的浓度小于1 ppm,维持在pH 6.5至8.5,温度低于60℃。优选的电镀溶液基本上不含铅或镉,并且所述溶液中镍与次磷酸盐的摩尔比为0.4至0.55。 优选的有机酸选自乳酸,乙酸,丙酸,丙酮酸,天冬氨酸和乙醇酸。