| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 1 | Production of diamino-anthraquinonyloxdiazoles | US35229953 | 1953-04-30 | US2759948A | 1956-08-21 | HEINZ-WERNER SCHWECHTEN |
| 2 | Nitration products of monoazo dyestuffs | US49709443 | 1943-08-02 | US2387988A | 1945-10-30 | FRIEDRICH FELIX; JOSEF ZURCHER |
| 3 | Quaternized 1-methyl-2-phenyl-3-indolylazo-guanazolyl-azo-1-methyl-2-phenyl-3-indoles | US2895370 | 1970-04-15 | US3822247A | 1974-07-02 | MAEDA S; OZUTSUMI M; KAWADA Y |
| BASIC DISAZO DYES WHICH ARE USEFUL FOR DYEING POLYACRYLONITRILE FIBER CHARACTERIZED BY THE FORMULA:
1,4-DI(R4-),3,5-DI((1-R2,2-R1,R3-INDOL-3-YL)-N=N-)-1H-1,2, 4-TRIAZOLIUM Z(-) OR 3,4-DI(R4-),2,5-DI((1-R2,2-R1,R3-INDOL-3-YL)-N=N-)-4H- IMIDAZOLIUM Z(-) WHEREIN R1 IS A LOWER ALKYL RADICAL OR A SUBSTITUTED OR NONSUBSTITUTED PHENYL; R2 REPRESENTS A HYDROGEN ATOM OR AN LOWER ALKYL RADICAL; R3 REPRESENTS A HYDROGEN OR HALOGEN ATOM OR A LOWER ALKYL OR LOWER ALKOXY RADICAL; R4 REPRESENTS A LOWER ALKYL OR A BENXYL RADICAL; Z$ REPRESENTS AN ANION WHICH DYES COLOR SAID POLYACRYLONITRILE FIBERS IN VARIOUS BRILLANT SHADES OF RED WHICH ARE CHARACTERIZED BY HIGH FASTNESS TO SUNLIGHT, GOOD WASH RESISTANCE, GOOD RUB RESISTANCE AND GOOD HEAT STABILITY. |
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| 4 | Nitro sulphato azo dyes | US44137642 | 1942-05-01 | US2387987A | 1945-10-30 | FRIEDRICH FELIX; JOSEF ZURCHER |
| 5 | Polyazo compounds containing 2,4,2{40 ,4{40 -tetrahydroxy-dibenzylamine as coupling component | US22037972 | 1972-01-24 | US3915952A | 1975-10-28 | SAILER ANDRE LOUIS; FRANK PIERRE |
| Azo dyes of the formula:
WHEREIN X represents the bivalent grouping -CH2-NH-CH2-, m represents an integer of 2 to 4, and Y represents a radical of the benzene, naphthalene, heterocyclic or azo series, at least one of which is substituted by at least one sulphonic or carboxylic acid group, and salts thereof with an amine or ammonium compound, and nitrosated, oxidised and metalliferous derivatives thereof; the dyes, derivatives and salts are useful for the color-finishing of leathers, for example for the aniline finishing of skins, whether or not previously dyed, and for the finishing of leathers with a buffed or artificial hair side, as well as for the spray-gun dyeing of full-grain leathers on which they give very vivid transparent shades which are very fast, especially to light and wet rubbing. |
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| 6 | Azo dyestuffs containing metal in complex union | US6034436 | 1936-01-22 | US2090432A | 1937-08-17 | FRITZ STRAUB; HERMANN SCHNEIDER |
| 7 | Manufacture of yellow azo-dyestuffs | US7040825 | 1925-11-20 | US1610936A | 1926-12-14 | AUGUST DORRER |
| 8 | JPS5549195B1 - | JP7757671 | 1971-10-05 | JPS5549195B1 | 1980-12-10 | |
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