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    • 75. 发明申请
    • CONVERSION TREATMENT METHOD AND COMPOSITION FOR ALUMINUM AND ALUMINUM ALLOYS
    • 铝和铝合金的转化处理方法和组合
    • WO1991013186A1
    • 1991-09-05
    • PCT/US1991000965
    • 1991-02-13
    • HENKEL CORPORATIONYOSHIDA, MasayukiNAKADA, Kazuya
    • HENKEL CORPORATION
    • C23C22/38
    • C23C22/38
    • The paint adhesion and corrosion resistance of surfaces of aluminum and its alloys, particularly when using a paint based on poly(vinyl chloride), is improved by using a conversion coating solution having a pH in the range from 1.0 to 3.0 and containing: (A) an amount of phosphate ions that is stoichiometrically equivalent to at least 5.0 g/L of phosphoric acid; (B) at least 1.0 g/L of hexavalent chromium; (C) at least 0.1 g/L of fluoride ions; and (D) a complex fluoride ion component selected from the group consisting of: (i) at least 4.0 g/L of fluosilicate ions, (ii) at least 0.5 g/L of fluoborate ions, (iii) at least 2.0 g/L of fluozirconate ions, and (iv) at least 2.0 g/L of fluotitanate ions.
    • 通过使用pH为1.0-3.0的转化涂层溶液,并且包含:(A(A)),改善了铝及其合金表面,特别是使用基于聚(氯乙烯)的涂料时的表面的油漆附着力和耐腐蚀性。 )磷酸盐离子的化学计量相当于至少5.0g / L的磷酸; (B)至少1.0g / L六价铬; (C)至少0.1g / L的氟离子; 和(D)选自以下的复合氟离子组分:(i)至少4.0g / L的氟硅酸盐离子,(ii)至少0.5g / L的氟硼酸根离子,(iii)至少2.0g / L的氟锆酸根离子,和(iv)至少2.0g / L的氟钛酸根离子。
    • 76. 发明申请
    • SURFACE-TREATMENT METHOD FOR TIN-PLATED DRAWN AND IRONED CANS
    • 表面处理和镀锌罐的表面处理方法
    • WO1991010756A1
    • 1991-07-25
    • PCT/US1991000202
    • 1991-01-10
    • HENKEL CORPORATIONTANAKA, ShigeoAOKI, TomoyukiYOSHIDA, Masayuki
    • HENKEL CORPORATION
    • C23C22/08
    • 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 and 60 DEG 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 general formula (I) 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 general formula (II) wherein each of R1 and R2 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.
    • 通过在40和60℃之间的温度下将罐表面喷涂5至60秒之间,可以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, 水溶液,其pH在4和6之间,并且包含(i)正磷酸和/或缩合磷酸,和(ii)至少0.1w / o根据通式(I)的水溶性低聚物的浓度,其中n 是数值在10和30之间的数字,X和Y各自独立地表示氢或基团Z,其中Z具有符合通式(II)的化学组成,其中R 1和R 2各自是烷基或羟烷基,其具有 1至5个碳原子,除了低聚物中所有X和Y基团的总和中至少25%是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。