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    2.
    发明专利
    未知

    公开(公告)号：DE3773125D1

    公开(公告)日：1991-10-24

    申请号：DE3773125

    申请日：1987-10-14

    Applicant: KAO CORP

    Inventor： YAMAMOTO YUZO ,  NAGAMORI HIROYUKI ,  KITAZAWA KOZO

    IPC: C09D5/44 ,  C25D15/02

    Abstract: An electroplated composite coating of the invention which comprises 70 to 99.9 percent by weigth of zinc or an alloy of zinc and 0.1 to 30 percent by weight of an organic polymer, said polymer being soluble in water and anionic, carionic or amphoteric, having been dispersed in the electroplated crystal grains or gain bound aries of the zinc and/or the zinc alloy, having a weight-average molecular weight of 1,000 to 1,000,000, said polymer having at least one aromatic ring and 1 to 10 hydroxyl group on the average per a molecular weight unit of 500, said polymer containing therein a polar group selected from the group consisting of: sulfo group, a phosphoric acid group of the formula -O-PO(OR)2, a phosphorous acid group of the formula -O-PO(OR)2, a phosphonic acid group of the formula -PO(OR)2, a phosphonous acid group of the formula -P(OR)2, a phosphinic acid group of the formula -RPO(OR), a phosphinous acid group of the formula -PR(OR), a tertiary amino group of the formula -NR1R2, a quaternary ammonium group of the formula -NR1R2R3.X and carboxyl group having the formula -COOH, in which R is hydrogen or a hydrocarbon group and R1, R2 and R3 each are a straight or branched alkyl, a straight or branched hydroxyalkyl, an aromatic ring and X is a counter anion, the sulfo group being contained therein on the average in an amount of 0.1 to 4 groups per a molecular weight unit of 500, the other groups being contained therein on the average in a total amount of 0.1 to 5 groups per a molecular weight of 500, the main chain briding between two aromatic rings being at least one of C-C linkage, C=C linkage and an ether linkage (C-O-C).

    3.
    发明专利
    未知

    公开(公告)号：DE69521035T2

    公开(公告)日：2001-10-18

    申请号：DE69521035

    申请日：1995-03-13

    Applicant: KAO CORP

    Inventor： KITAZAWA KOZO

    IPC: B08B3/00 ,  B08B3/04 ,  B08B3/12 ,  C11D1/72 ,  C11D3/43 ,  C11D11/00 ,  C23G1/24 ,  C23G3/00 ,  C23G5/02 ,  H05K3/26 ,  C11D7/50 ,  C23G5/024 ,  C23G5/032

    Abstract: PCT No. PCT/JP95/00416 Sec. 371 Date Sep. 18, 1996 Sec. 102(e) Date Sep. 18, 1996 PCT Filed Mar. 13, 1995 PCT Pub. No. WO95/25606 PCT Pub. Date Sep. 28, 1995The present invention is directed to a process for cleaning a cleaning object, comprising the steps of: placing water and organic substances containing a nonionic surfactant composition having a cloud point of not higher than 100 DEG C. in a ratio of not less than 30% by weight, with or without previous blending, in a cleaning vessel, wherein the organic substances have a specific gravity higher than that of water and, when mixed with water, placed in the cleaning vessel and kept standing at a temperature of from 20 DEG to 100 DEG C. for 30 minutes, exhibit phase separation such that not less than 50% by weight of the organic substances is separated into a lower layer; maintaining a temperature above the cloud point of the nonionic surfactant, thereby allowing water and the organic substances to be in the state of phase separation in which the concentration of the organic substances in a lower layer is higher than that in an upper layer; and cleaning the cleaning object in the lower layer.

    4.
    发明专利
    未知

    公开(公告)号：DE69216525T2

    公开(公告)日：1997-05-28

    申请号：DE69216525

    申请日：1992-10-02

    Applicant: KAO CORP

    Inventor： KITAZAWA KOZO ,  KASHIHARA EIJI

    IPC: B08B3/08 ,  C11D1/72 ,  C11D3/43 ,  C11D10/02 ,  C23G5/032 ,  C23G5/06 ,  H05K3/26

    Abstract: Disclosed is a process for cleaning electronic parts or precision parts which comprises the steps of: washing the parts with a cleaning agent composition, rinsing the washed parts with water having a temperature of from 5 to 100 DEG C, and maintaining the rinsing waste water at a temperature of 20 DEG C or higher to effect separation of organic substances. The cleaning agent composition contains, as active cleaning components, a nonionic surface active agent and a compound selected from the group consisting of hydrocarbon compounds and slightly water soluble alkyl esters or alkyl ketones. The composition is such that 50% by weight or more of the organic substances separate from the water phase when the composition is made into an aqueous solution having an organic substance content of 5% by weight adjusted by diluting it with water or by evaporating water from it and the resulting cleaning agent aqueous solution is subsequently allowed to stand still for 30 minutes at a temperature of from 20 to 100 DEG C. According to the present invention, organic substances in rinsing waste water can be separated and removed efficiently, and subsequent waste water treatment step can be simplified. The process is economically advantageous, because the rinsing waste water after the separation treatment can be used again as a rinsing liquid.

    WATER TREATMENT METHOD AND WATER TREATMENT AGENT USED THEREFOR
    6.
    发明专利
    WATER TREATMENT METHOD AND WATER TREATMENT AGENT USED THEREFOR 未知

    公开(公告)号：MY118762A

    公开(公告)日：2005-01-31

    申请号：MYPI9605450

    申请日：1996-12-24

    Applicant: KAO CORP

    Inventor： TAMURA ATSUSHI ,  KITAZAWA KOZO ,  OKAMURA MAMI

    IPC: C02F1/00 ,  C02F1/58 ,  C02F9/00

    Abstract: A WATER TREATMENT METHOD INCLUDES THE STEPS OF (A) CONTACTING WATER TO BE TREATED CONTAINING AT LEAST ORGANICSUBSTANCES WITH A WATER TREATMENT AGENT, THE WATER TREATMENT AGENT BEING COMPATIBLE WITH THE ORGANIC SUBSTANCES BUT SLIGHTLY SOLUBLE OR INSOLUBLE IN WATER, TO GIVE A LIQUID MIXTURE; (B) SEPARATING THE WATER TREATMENT AGENT FROM THE LIQUID MIXTURE OBTAINED IN STEP (A); AND (C) CIRCULATING AND REUSING IN STEP (A) THE WATER TREATMENT AGENT SEPARATED IN STEP (B), THEREBY CARRYING OUT WATER TREATMENT CONTINUOUSLY OR INTERMITTENTLY. A WATER TREATMENT AGENT IS USABLE FOR THE ABOVE WATER TREATMENT METHOD, CHARACTERIZED IN THAT THE WATER TREATMENT AGENT CONTAINS ORGANIC SUBSTANCES IN THE FORM OF A LIQUID AT A WATER TREATMENT TEMPERATURE, THE ORGANIC SUBSTANCES HAVING A SOLUBILITY TO WATER OF FROM 0.0001 TO 2.0BY WEIGHT AT A WATER TREATMENT TEMPERATURE. A RINSING PROCESS USING WATER, CHARACTERIZED IN THAT A RINSING STEP IS CARRIED OUT WHILE CIRCULATING AND REUSING, AS A RINSING WATER, THE TREATED WATER OBTAINED BY TREATING A RINSING WASTE WATER BY THE ABOVE WATER TREATMENT METHOD.

    7.
    发明专利
    未知

    公开(公告)号：DE69521035D1

    公开(公告)日：2001-06-28

    申请号：DE69521035

    申请日：1995-03-13

    Applicant: KAO CORP

    Inventor： KITAZAWA KOZO

    IPC: B08B3/00 ,  B08B3/04 ,  B08B3/12 ,  C11D1/72 ,  C11D3/43 ,  C11D11/00 ,  C23G1/24 ,  C23G3/00 ,  C23G5/02 ,  H05K3/26 ,  C11D7/50 ,  C23G5/024 ,  C23G5/032

    Abstract: PCT No. PCT/JP95/00416 Sec. 371 Date Sep. 18, 1996 Sec. 102(e) Date Sep. 18, 1996 PCT Filed Mar. 13, 1995 PCT Pub. No. WO95/25606 PCT Pub. Date Sep. 28, 1995The present invention is directed to a process for cleaning a cleaning object, comprising the steps of: placing water and organic substances containing a nonionic surfactant composition having a cloud point of not higher than 100 DEG C. in a ratio of not less than 30% by weight, with or without previous blending, in a cleaning vessel, wherein the organic substances have a specific gravity higher than that of water and, when mixed with water, placed in the cleaning vessel and kept standing at a temperature of from 20 DEG to 100 DEG C. for 30 minutes, exhibit phase separation such that not less than 50% by weight of the organic substances is separated into a lower layer; maintaining a temperature above the cloud point of the nonionic surfactant, thereby allowing water and the organic substances to be in the state of phase separation in which the concentration of the organic substances in a lower layer is higher than that in an upper layer; and cleaning the cleaning object in the lower layer.

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