ANTI-CORROSIVE PAINT
    6.
    发明专利

    公开(公告)号:HK17489A

    公开(公告)日:1989-03-10

    申请号:HK17489

    申请日:1989-03-02

    Applicant: INT PAINT PLC

    Abstract: Anti-corrosion coating comprises a pigment salt (I) dispersed in a binder, (I) comprising a polyvalent metal cation (II) and an organic polyphosphonic acid (III) contg. at least two phosphonic acid gps., the mol. ratio of (II) to (III) being at least 0.8/n:1 where n=valency of the metal ion. Pref. (I) has the formula M(x)R(PO3)(m)H(2m-Xn), where M=Zn, Mn, Mg, Ca, Ba, Al, Co, Fe, Sr, Sn, Zr, Ni, Cd or Ti; R=organic radical linked by C-P bonds; m=valency of R (at least 2); n= valency of M and x=0.8 m/n to 2m/n. Process is used for coating iron and steel structural components etc. Coating affords better rusting protection than Zn phosphate whilst avoiding chemicals which are helath hazards. -

    ANTI-CORROSIVE PAINT
    7.
    发明专利

    公开(公告)号:DE3378056D1

    公开(公告)日:1988-10-27

    申请号:DE3378056

    申请日:1983-05-31

    Applicant: INT PAINT PLC

    Abstract: Anti-corrosion coating comprises a pigment salt (I) dispersed in a binder, (I) comprising a polyvalent metal cation (II) and an organic polyphosphonic acid (III) contg. at least two phosphonic acid gps., the mol. ratio of (II) to (III) being at least 0.8/n:1 where n=valency of the metal ion. Pref. (I) has the formula M(x)R(PO3)(m)H(2m-Xn), where M=Zn, Mn, Mg, Ca, Ba, Al, Co, Fe, Sr, Sn, Zr, Ni, Cd or Ti; R=organic radical linked by C-P bonds; m=valency of R (at least 2); n= valency of M and x=0.8 m/n to 2m/n. Process is used for coating iron and steel structural components etc. Coating affords better rusting protection than Zn phosphate whilst avoiding chemicals which are helath hazards. -

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