22.
    发明专利
    未知

    公开(公告)号:BR9408307A

    公开(公告)日:1997-08-26

    申请号:BR9408307

    申请日:1994-12-08

    Applicant: HENKEL CORP

    Abstract: The following water soluble materials are all satisfactory internal accelerators for otherwise conventional zinc phosphate conversion coating solutions: reducing sugars, starch, urea, and poly{acrylates and methacrylates}. Concentrates including these ingredients and otherwise conventional constituents of zinc phosphate conversion coating compositions, except for excluding conventional accelerators other than nitrate, are stable in composition during storage, unlike most conversion coating compositions containing conventional accelerators. Thus concentrates according to the invention are practical single-package concentrates that can be made into working phosphating compositions by dilution with water only.

    Phosphate conversion coating and compositions and concentrates therefor with stable internal accelerator.

    公开(公告)号:ZA949800B

    公开(公告)日:1995-08-21

    申请号:ZA949800

    申请日:1994-12-08

    Applicant: HENKEL CORP

    Abstract: The following water soluble materials are all satisfactory internal accelerators for otherwise conventional zinc phosphate conversion coating solutions: reducing sugars, starch, urea, and poly{acrylates and methacrylates}. Concentrates including these ingredients and otherwise conventional constituents of zinc phosphate conversion coating compositions, except for excluding conventional accelerators other than nitrate, are stable in composition during storage, unlike most conversion coating compositions containing conventional accelerators. Thus concentrates according to the invention are practical single-package concentrates that can be made into working phosphating compositions by dilution with water only.

    29.
    发明专利
    未知

    公开(公告)号:BR9611356A

    公开(公告)日:1999-05-04

    申请号:BR9611356

    申请日:1996-10-31

    Applicant: HENKEL CORP

    Abstract: A combination of difunctional organic acid, preferably a hydroxy acid such as citric acid, or salt thereof with acrylic acid/acrylate polymers in zinc phosphate conversion coating forming liquid compositions, preferably also containing hydroxylamine, results in crystal size refinement in the coating formed and/or faster formation of a sufficiently thick conversion coating to protect against subsequent rusting of a ferrous substrate.

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