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.:
Date of Patent:
Sep. 09, 1980
Filed:
Jan. 08, 1979
Kimihide Kawamura, Koshigaya, JP;
Shojiro Horiguchi, Hoya, JP;
Dainichiseika Color & Chemicals Mfg. Co., Ltd., Tokyo, JP;
Abstract
Azo pigments having the formula ##STR1## wherein X represents hydrogen or halogen atom; n represents an integer of 1 to 4; R.sub.1 represents a substituted or unsubstituted aromatic group; R.sub.2 represents a moiety of a coupling component which has one coupling site and R.sub.3 represents a moiety of a coupling component which has two coupling sites. The azo pigments can be produced by coupling a coupling component with a diazonium compound of an aromatic amine having the formula ##STR2## wherein X, n and R.sub.1 are defined above.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile