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:
Apr. 30, 2013
Filed:
May. 16, 2012
Brian Thompson, Goose Creek, SC (US);
Daphne Rice, Charleston, SC (US);
Tracie Tibbs, Charleston, SC (US);
Bobby Mims, Summerville, SC (US);
Thomas Flatt, Summerville, SC (US);
Richard Faubion, Cincinnati, OH (US);
Wengan Wu, Mt. Pleasant, SC (US);
Brian Thompson, Goose Creek, SC (US);
Daphne Rice, Charleston, SC (US);
Tracie Tibbs, Charleston, SC (US);
Bobby Mims, Summerville, SC (US);
Thomas Flatt, Summerville, SC (US);
Richard Faubion, Cincinnati, OH (US);
Wengan Wu, Mt. Pleasant, SC (US);
Sun Chemical Corporation, Parsippany, NJ (US);
Abstract
Novel crystal forms of solid solutions of 2,9-dimethyoxyquinacridone and 2,9-dichloroquinacridone. The crystal forms may be formed by a process comprising the steps of: a) heating a mixture of 2,5-di(4-methoxyanilino)terephthalic acid, and 2,5-di(4-chloroanilino)terephthalic acid in polyphorsphoric acid at a temperature less than 1050 C to form a mixture of 2,9-dimethoxyquinacridone and 2,9-dichloroquinacridone; b) combining the mixture of 2,9-dimethoxyquinacridone and 2,9-dichloroquinacridone with water; and c) heating the mixture of 2,9-dimethoxyquinacridone and 2,9-dichloroquinacridone at a temperature not more than 110° C. Another crystal form may be formed by the process of heating a mixture of 2,9-dimethoxyquinacridone and 2,9-dichloroquinacridone in a polar aprotic solvent. These products are may be used for coloring fibers, plastics, paints, coatings, printing inks, color filters, cosmetics, automotive coatings, textiles, fibers, powder coatings, in-mold coatings, laminate films, and the like.