Chromium-free coating preparation for the treatment of metal sur

Details Chromium-free coating preparation for the treatment of metal sur Chromium-free coating preparation for the treatment of metal sur

1996-03-28

1998-05-19

Lipman, Bernard

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

5253299, 525371, 525372, 525384, 428461, C08F 832

Patent

active

057537798

ABSTRACT:
An aqueous chromium-free coating preparation for the protection of a metal substrate against corrosion and attack by moisture comprises an acrylic acid or derivative thereof as binder and also a crosslinking system which comprises at least one hydroxide of a divalent metal ion and an amine compound. The acrylic acid:crosslinking system ratio is generally 1.5-4:2-4. The crosslinking system may comprise other monofunctional or polyfunctional compounds. Various constituents of the crosslinking system can be interchanged within certain margins.

REFERENCES:
patent: 3959237 (1976-05-01), Blank
patent: 5270376 (1993-12-01), Matejcek et al.
patent: 5374687 (1994-12-01), Cooperman et al.
Chemical Abstracts, vol. 84, No. 10, Mar. 8, 1976, Columbus, Ohio, United States, Abstract No. 61387, Kuboko Paint KK, Water-Thinned Thermosetting Resin Coating Compositions.
Chrmical Abstracts, vol. 83, No. 6, 11 Aug. 1975, Columbus, Ohio, US; abstract No. 50778, "Photorecording Material" p. 497; XP002006467 *abstract* & JP-A-49 033 654 (Canon KK).
Patent Abstracts of Japan, vol. 16, No. 25 (C-903) & Jp-A-03 237172 (Yushiro Chem Ind KK) *abstract*.

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