Assignee
ACNA
17 patents
Top patents by PatentIndex Score
US4248776AFeb 3, 1981
Symmetrical trisazo dye obtained by coupling tetrazotized 4-4'-diaminozobenzene with 2-carboxymethylamin0-8-naphthol-6-sulphonic acid
ACNA7 citations67
US4269769AMay 26, 1981
Diazo compounds obtained by coupling acetoacetanilides with tetrazotized diaminobenzanilides
ACNA7 citations66
US4011209AMar 8, 1977
Organic solvent-soluble azo dyes
ACNA12 citations66
US4306875ADec 22, 1981
Salts of basic dyes, preparation and uses of same
ACNA17 citations64
US4303407ADec 1, 1981
Concentrated coloring solutions of a blue tinge based on mixture of 1.4-dialkyl-anthraquinones for the coloring of petroliferous products
ACNA10 citations62
US4193763AMar 18, 1980
Dyeing and printing of water-swellable cellulose material and blends thereof with synthetic fibres, by means of disazo dyes derived from amino-pyrazole
ACNA4 citations60
US4335246AJun 15, 1982
Substituted arylamine intermediates for dyes
ACNA2 citations58
US4242093ADec 30, 1980
Double-face dyeing and printing of polyester fabrics with disperse dyes
ACNA10 citations58
US4268436AMay 19, 1981
Process for preparing diazonium salts of 3-amino-pyrazole
ACNA2 citations56
US4257942AMar 24, 1981
New water-insoluble azo dyes
ACNA3 citations55
US4153599AMay 8, 1979
Monoazo-dyes particularly suited to the levelled dyeing of synthetic polyamide fibers
ACNA2 citations54
US4077765AMar 7, 1978
Monoazo-dyes particularly suited to the levelled dyeing of synthetic polyamide fibers
ACNA3 citations54
US4052380AOct 4, 1977
Trisazo dyes containing two different aminonaphtholsulphonic acid coupler components
ACNA4 citations45
US4011224AMar 8, 1977
Process for the preparation of 7-oxo-7H-dibenzo-[d e,h]-quinolin-2-ol
ACNA0 citations43
US4011227AMar 8, 1977
O-(3-hydroxy-1-isoquinolinyl)-benzoic acid
ACNA0 citations43
US3983101ASep 28, 1976
Water-soluble polyazo compound derived from 4-4-diaminobenzanilide
ACNA0 citations42
US4052375AOct 4, 1977
Water-soluble trisazosulfonated dyestuff derived from 2-aminophenol-4-sulfonic acid, resorcinol, 4,4'-diaminobenzanilide and m-aminophenol
ACNA0 citations41