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:
Feb. 07, 2006
Filed:
Oct. 03, 2003
Ganapati Subray Shankarling, Bangalore, IN;
Krishnamoorthy Sivakumar, Bangalore, IN;
Adil Minoo Dhalla, Mumbai, IN;
Ganapati Subray Shankarling, Bangalore, IN;
Krishnamoorthy Sivakumar, Bangalore, IN;
Adil Minoo Dhalla, Mumbai, IN;
General Electric Company, Schenectady, NY (US);
Abstract
An anthrapyridone composition of the formula:is disclosed, where 'A' and 'B' are independently selected from substituted or unsubstituted cyclic ketone groups having from about 10 to about 20 ring carbon atoms; “a” is an integer having a value from 0-4, R-Rare monovalent substituents; with the proviso that when “a” is 0, Ris selected from the group consisting of a hydrogen, an alkyl group, a secondary amino group and an aminosulphonyl group; and R-Rare substituents selected form the group consisting of a hydroxyl group, an aliphatic group, an aromatic group, a heterocyclic group, a halogen atom, a cyano group, a carbonyl containing group, an amino group and a sulphonyl-containing group. The anthrapyridones are useful as thermally stable colorants for producing colored polymer resins and articles that require high temperature polymer processing conditions.