Sumitomo Chemical Company, Limited

Masao Nishikuri

Akira Takeshita

Hirohito Kenmochi

Taizo Ohshima

Takashi Omura

Yasuyuki Suzuki

Toshio Nakamatsu

Kunihiko Imada

Yasuyoshi Ueda

Kiyoteru Kojima

Makoto Hattori

Kiyoyasu Hashimoto

Hideo Hattori

Yoshikazu Matsuo

Eiji Yamada

Junzaburo Seino

Michio Yamazaki

Kunio Yamada

Ryuji Kanou

A monoazo pyridone compound of the following formula, ##STR1## wherein X is a member selected from hydrogen, halogeno, alkyl, alkoxy, alkylcarbonyl, alkoxycarbonyl, aralkoxycarbonyl, alkylsulfonyl, arylsulfonyl, carbamoyl, sulfamoyl or cyano, and R is alkyl, alkenyl, cycloalkyl, phenyl or anilino, with the provisos that X is a member selected from those defined above except for hydrogen, chloro, methyl and methoxy when R is ethyl, and X is a member selected from those defined above except for alkyl when R is iso-butyl, which is stable under dyeing conditions, and useful for dyeing hydrophobic fiber materials to give dyed products of a deep, fast and brilliant color of greenish yellow to orange.

Monoazo pyridone compounds and application thereof for dyeing of

1-Amino-2-phenoxy-4-hydroxyanthraquinones, which are useful as a red disperse dye for polyester fibers, and also useful as an intermediate for the production of other red disperse dyes, are produced in a high yield and purity by reacting a 1-amino-2-halogeno-4-hydroxyanthraquinone with a phenol compound in a sulfane solvent in the presence of an acid binding agent.

Method for producing 1-amino-2-phenoxy-4-hydroxyanthraquinones

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.

Light-fast yellow disperse dye composition for polyester

A compound which is represented by a free acid of the following formula, ##STR1## wherein X is hydrogen, halogen, alkyl or cyano, R.sub.1, R.sub.2 and R.sub.3 are independently hydrogen or alkyl, R.sub.4 is alkyl, W is alkylene, cycloalkylene or arylene, Q is --SO.sub.2 CH.dbd.CH.sub.2 or --SO.sub.2 CH.sub.2 CH.sub.2 L in which L is a group capable of being splitted by the action of an alkali, D is a benzene or naphthalene ring, l and m are independently a number of not less than 0 but not more than 3, and n is a number of more than 0 but not more than 3, provided that l, m and n satisfy 0&lt;l+m+n.ltoreq.4, and which is useful for dyeing fiber materials a blue color with a good build-up property to give a dyed product having excellent fastness properties.

Dioxazine fiber reactive compound

Styryl compounds represented by the following general formula (I): ##STR1## wherein X.sub.1 is a halogen atom or a lower alkyl or lower alkoxy group, X.sub.2, Y.sub.1 and Y.sub.2 are each a hydrogen or halogen atom or a lower alkyl or lower alkoxy group, R.sub.1 and R.sub.3 are each an unsubstituted or substituted alkyl group, and R.sub.2 is a straight or branched C.sub.3 -C.sub.10 alkylene group or an alicyclic hydrocarbon-containing alkylene group, a process for producing them, a process for dyeing and printing hydrophobic fibers by their use and a process for coloring synthetic resins by their use. According to said processes a clear yellow color of high fastness can be given to the fibers and synthetic resins.

Styryl compounds and coloring synthetic resins therewith

1-Amino-2,4-dibromoanthraquinone, which can be hydrolyzed to produce 1-amino-2-bromo-4-hydroxyanthraquinone which is an intermediate for the production of dyes, is produced by bromination of 1-aminoanthraquinone in a concentrated sulfuric acid at a temperature of 50.degree. to 150.degree. C.

Process for producing anthraquinone intermediates

Synthetic or semi-synthetic, or natural materials are dyed deep turquoise blue by contacting the material with a vaporized dye of the formula, ##STR1## wherein X is oxygen or imino, and R is C.sub.4 -C.sub.5 alkyl or C.sub.4 -C.sub.5 alkenyl.

Process for dry dyeing synthetic or semi-synthetic, or natural materials

A disperse dye of the formula, ##SPC1## Wherein X.sub.1 and X.sub.2 each are an amino or hydroxyl group, Y is a hydrogen or halogen atom, Z is an oxygen or sulfur atom or a direct linkage, R is a hydrogen or halogen atom or a lower alkyl or lower alkoxy group, n is an integer of from 1 to 4, and m is 1 or 2, which is suitable for dyeing synthetic fibers such as polyester fibers with a high color value and good fastnesses.

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Hirakata, Japan

Masao Nishikuri