Method of stabilizing metal pigments against gassing

Details Method of stabilizing metal pigments against gassing Method of stabilizing metal pigments against gassing

2011-08-30

2011-08-30

Buttner, David (Department: 1765)

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

Synthetic resins

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

C525S340000, C525S377000, C525S523000, C525S533000, C528S099000, C528S108000, C528S114000, C528S287000, C528S398000, C528S407000

Reexamination Certificate

active

08008405

ABSTRACT:
The present invention is directed to a passivating material suitable for passivating a metal surface. The passivating material comprises a polymer which comprises (a) at least one nitro group, and/or pyridine group, and/or phenolic hydroxyl group; and (b) at least one group selected from a phosphorous-containing group and/or a carboxylic acid group, wherein the at least one phosphorous-containing group is selected from a phosphate, a phosphite, or a non-nitrogen substituted phosphonate.

REFERENCES:
patent: 3375220 (1968-03-01), Clark et al.
patent: 4271276 (1981-06-01), Makarova et al.
patent: 4497946 (1985-02-01), Sekmakas et al.
patent: 4576902 (1986-03-01), Saenger et al.
patent: 6267952 (2001-07-01), Mandeville et al.

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