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. 01, 1987
Filed:
Jul. 07, 1986
Toshio Nakamatsu, Ibaraki, JP;
Yoshikazu Matsuo, Sakai, JP;
Masao Nishikuri, Hirakata, JP;
Kunihiko Imada, Sakai, JP;
Sumitomo Chemical Company, Limited, Osaka, JP;
Abstract
A water-insoluble disperse dye composition comprising a combination of a dye represented by the following formula (I), ##STR1## wherein X is hydrogen, halogen, lower alkyl or lower alkoxy, in an amount of 95 to 20% by weight, and a dye represented by the following formula (II), ##STR2## wherein Z, Y.sub.1 and Y.sub.2 are independently hydrogen or halogen, and the ring A is a benzene or naphthalene ring unsubstituted or substituted with a carboxylic acid ester group, in an amount of 5 to 80% by weight, which is useful for dyeing polyester fiber materials to obtain dyed products having both extremely high light fastness and excellent thermal resistance.