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    • 3. 发明授权
    • Fluoride and chromium free acid etchant rinse for aluminum
    • 氟化物和无铬铬酸蚀刻剂冲洗铝
    • US4980076A
    • 1990-12-25
    • US403625
    • 1989-09-06
    • Shigeo TanakaTomoyuki AokiYasuo IinoYoji Ono
    • Shigeo TanakaTomoyuki AokiYasuo IinoYoji Ono
    • C23G1/12
    • C23G1/125
    • Problems with previously known aqueous acidic rinsing solutions for aluminum after shaping while using surface lubricants are avoided by use of a solution which contains water and (A) orthophosphoric acid in an amount to give a stoichiometric equivalent of 3.0 to 50 g/L as PO.sub.4.sup.-3, (B) an aluminum ion sequestrant component in an amount of 0.01 to 10.0 g/L; and (C) 20 to 170 ppm of ferric ion. The ferric ions act to inhibit corrosion of the stainless steel process equipment. Preferably the solution also contains 0.1 to 1.0 g/L of H.sub.2 O.sub.2, NO.sub.2.sup.-1 ions, or a mixture thereof to reoxidize ferrous ions formed by reduction of ferric ions during use of the solution and thus maintain the concentration of ferric ions above 20 ppm at all times. The solution may also contain surfactant and up to 10 g/L of dissolved aluminum ions.
    • 使用含有水的溶液和(A)正磷酸的量,通过使用表面润滑剂成型后的铝的先前已知的水性酸性漂洗溶液的问题可以避免,其量为化学计量当量为3.0〜50g / L,PO4- 3,(B)0.01〜10.0g / L的铝离子螯合剂成分; 和(C)20〜170ppm的铁离子。 铁离子用于抑制不锈钢工艺设备的腐蚀。 优选地,溶液还含有0.1至1.0g / L的H 2 O 2,NO 2 -1离子或其混合物,以在溶液的使用期间再氧化由铁离子还原形成的亚铁离子,并且因此将铁离子的浓度保持在20ppm以上 一直。 该溶液还可以含有表面活性剂和高达10g / L的溶解的铝离子。
    • 4. 发明授权
    • Surface-treatment method for tin-plated drawn and ironed cans
    • 镀锡拉丝和熨烫罐的表面处理方法
    • US5520959A
    • 1996-05-28
    • US910081
    • 1992-07-10
    • Shigeo TanakaTomoyuki AokiMasayuki Yoshida
    • Shigeo TanakaTomoyuki AokiMasayuki Yoshida
    • C23C22/08C23C22/23B05D3/02
    • C23C22/08C23C22/23
    • A surface which has excellent adhesivity to paint, good corrosion resistance, and low friction may be obtained on drawn and iron tin plated cans by spraying the can surface for a time between 5 and 60 seconds at a temperature between 40.degree. and 60.degree. C. with an aqueous treating liquid having a pH between 4 and 6 and comprising (i) orthophosphoric acid and/or condensed phosphoric acids and (ii) a concentration of at least 0.1 w/o of a water soluble oligomer according to the general formula: ##STR1## wherein n is a number with a value between 10 and 30 and each of X and Y independently represents hydrogen or a group Z, wherein Z has a chemical composition conforming to the general formula: ##STR2## wherein each of R.sub.1 and R.sub.2 is an alkyl or hydroxyalkyl group having from 1 to 5 carbon atoms, except that at least 25% of the total of all the X and Y groups in the oligomer are Z rather than hydrogen; and drying the surface thus sprayed, optionally after having first rinsed the sprayed surface with water.
    • PCT No.PCT / US91 / 00202 Sec。 371日期:1992年7月10日 102(e)日期1992年7月10日PCT 1991年1月1日PCT PCT。 公开号WO91 / 10756 日期:1991年7月25日。通过在5和60秒之间的温度下,在拉伸和镀锡的罐上获得具有优异的涂料粘附性,良好的耐腐蚀性和低摩擦力的表面, 40℃和60℃,pH为4至6,并包含(i)正磷酸和/或缩合磷酸的水性处理液,和(ii)至少0.1w / o的水溶性低聚物的浓度 根据通式:其中n是数值在10和30之间,X和Y各自独立地表示氢或基团Z,其中Z具有符合以下通式的化学组成: 其中R 1和R 2各自为具有1至5个碳原子的烷基或羟烷基,除了低聚物中所有X和Y基团的总和中的至少25%为Z而不是氢; 并且任选地在首先用水冲洗喷射表面之后干燥所喷射的表面。
    • 8. 发明授权
    • Composition and process for treating the surface of aluminiferous metals
    • 用于处理含铝金属表面的组成和方法
    • US5728234A
    • 1998-03-17
    • US727590
    • 1996-10-15
    • Tomoyuki AokiMasayuki Yoshida
    • Tomoyuki AokiMasayuki Yoshida
    • C23C22/23C23C22/33
    • C23C22/23
    • A surface of aluminiferous metal is brought into contact at 30.degree. C. to 65.degree. C. for 5 to 60 seconds with a surface treatment bath with a pH of 2.0 to 6.5 that contains phosphate ion, condensed phosphate ion, and a water soluble polymer in the following weight proportions: 1-30: 0.1-10: 0.2-20. This is followed by a water rinse and drying by heating. The water soluble polymer has a chemical structure conforming with formula (I): ##STR1## in which (i) each of X.sup.1 and X.sup.2 represents a hydrogen atom, a C.sub.1 to C.sub.5 alkyl group, or a C.sub.1 to C.sub.5 hydroxyalkyl group; (ii) each of Y.sup.1 and Y.sup.2 represents a hydrogen atom or a moiety "Z" that conforms to formula (II) or (III): ##STR2## wherein each of R.sup.1, R.sup.2, R.sup.3, R.sup.4, and R.sup.5 represents a C.sub.1 to C.sub.10 alkyl group or a C.sub.1 to C.sub.10 hydroxyalkyl group; (iii) the average value for the number of Z moieties substituted on each phenyl ring in the polymer molecule is from 0.2 to 1.0; (iv) n is an integer with a value from 2 to 50; and (v) each polymer molecule contains at least one Z moiety.
    • PCT No.PCT / US95 / 03933 Sec。 371日期1996年10月15日 102(e)日期1996年10月15日PCT提交1995年4月7日PCT公布。 WO95 / 28509 PCT公开号 日期1995年10月26日使用含有磷酸根离子,缩合磷酸根离子的pH为2.0〜6.5的表面处理浴,将含铝金属的表面在30℃〜65℃下接触5〜60秒, 和以下重量比例的水溶性聚合物:1-30:0.1-10:0.2-20。 然后通过加热进行水冲洗和干燥。 水溶性聚合物具有符合式(I)的化学结构:其中(i)X1和X2各自表示氢原子,C1至C5烷基或C1至C5羟基烷基 ; (ii)Y 1和Y 2各自表示氢原子或符合式(II)或(III)的部分“Z”:其中R 5表示C 1至C 10烷基或C 1至C 10 羟烷基 (iii)聚合物分子中每个苯环上取代的Z部分数目的平均值为0.2-1.0; (iv)n是2至50的整数; 和(v)每个聚合物分子含有至少一个Z部分。