THERMALLY STABLE ANTHRAPYRIDONE COMPOSITIONS

WIPO Patent Application WO2005033210

A3

An anthrapyridone composition of the formula: (I) 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<1> - R<4> are monovalent substituents; with the proviso that when "a" is 0, R<1> is selected from the group consisting of a hydrogen, an alkyl group, a secondary amino group and an aminosulphonyl group; and R<2> - R<4> are substituents selected form the group consisting of a hydroxyl group, an aliphatic group, an aromatic group, a heterocylic 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.

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SHANKARLING GANAPATI SUBRAY (IN)
SIVAKUMAR KRISHNAMOORTHY (IN)
DHALLA ADIL MINOO (IN)

PCT/US2004/029278

July 14, 2005

September 02, 2004

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GEN ELECTRIC (US)
SHANKARLING GANAPATI SUBRAY (IN)
SIVAKUMAR KRISHNAMOORTHY (IN)
DHALLA ADIL MINOO (IN)

C08K5/3437; C09B5/14; (IPC1-7): C09B5/14; C08K5/3437

FR1448090A	1966-08-05
US4182885A	1980-01-08
US2204741A	1940-06-18
DE194253C

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