Title:
WATER-SOLUBLE AZO COMPOUNDS AND PROCESS FOR PRODUCING THE SAME
Document Type and Number:
WIPO Patent Application WO/1999/011717
Kind Code:
A1
Abstract:
New water-soluble azo compounds produced from 2-hydroxynaphthalene-3,6-dicarboxylic acid or derivatives thereof and a diazonium salt having a sulfo group. These compounds are useful as starting material for dyes excellent in dyeing properties and fastness.
Inventors:
UENO RYUZO (JP)
KITAYAMA MASAYA (JP)
MINAMI KENJI (JP)
KITTAKA MASAHARU (JP)
KITAYAMA MASAYA (JP)
MINAMI KENJI (JP)
KITTAKA MASAHARU (JP)
Application Number:
PCT/JP1998/003750
Publication Date:
March 11, 1999
Filing Date:
August 25, 1998
Export Citation:
Assignee:
UENO SEIYAKU OYO KENKYUJO KK (JP)
UENO RYUZO (JP)
KITAYAMA MASAYA (JP)
MINAMI KENJI (JP)
KITTAKA MASAHARU (JP)
UENO RYUZO (JP)
KITAYAMA MASAYA (JP)
MINAMI KENJI (JP)
KITTAKA MASAHARU (JP)
International Classes:
C09B62/008; C09B62/085; C09B62/245; (IPC1-7): C09B62/085; C09B62/245; C09B29/15; C09B29/20
Domestic Patent References:
| WO1998017728A1 | 1998-04-30 | |||
| WO1998016587A1 | 1998-04-23 |
Foreign References:
| JPH06145573A | 1994-05-24 | |||
| JPH01245060A | 1989-09-29 | |||
| JPH01215862A | 1989-08-29 |
Other References:
See also references of EP 0937753A4
Attorney, Agent or Firm:
Aoyama, Tamotsu (Shiromi 1-chome Chuo-ku, Osaka-shi Osaka, JP)
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