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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.

Patent No.:

US 4957562 B1

PDFFull Text
Date of Patent:
Sep. 18, 1990

Filed:

Oct. 19, 1988

Chrome oxide green, a process for its preparation and its use

Applicant:
Inventors:

Jakob Rademachers, Krefeld, DE;

Dieter Rade, Krefeld, DE;

Hans-Ulrich Hofs, Krefeld, DE;

Gunther Teichmann, Krefeld, DE;

Gerhard Trenczek, Krefeld, DE;

Assignee:

Bayer Aktiengesellschaft, Leverkusen, DE;

Attorney:

Connolly and Hutz

Primary Examiner:

Peter D Rosenberg

Int. Cl.
CPC ...
C09C / ;
U.S. Cl.
CPC ...
106453 ;
Abstract

Chrome green oxide useful, inter alia, as a coloring material and having a water number of 10 to 40 g/100 g is prepared by adding sulphonic acid compounds, polyphosphoric acid compounds, polyacrylic acid compounds or mixtures thereof, in quantities of from 0.1 to 2% by weight, to an aqueous suspension of chrome oxide green pigment having a BET surface area of from 1 to 20 m.sup.2 /g before drying, and then drying the suspension.

Find Patent Forward Citations

Rademachers, Jakob. (1990). Chrome oxide green, a process for its preparation and its use (U.S. Patent No. 4957562). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4957562

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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