The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 06, 2002

Filed:

Jun. 01, 1999
Applicant:
Inventors:

Günter Kaupp, Neuhaus, DE;

Werner Ostertag, Grünstadt, DE;

Günter Sommer, Lauf, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23C 1/414 ;
U.S. Cl.
CPC ...
C23C 1/414 ;
Abstract

In aluminum-based metal pigments produced by physical vapor deposition of a metal film and subsequent crushing of the metal film metal surfaces which are exposed after the operation of crushing the metal film and in particular fracture surfaces thereof are covered with a passivating protective layer to afford corrosion stability of those metal pigments.


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