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| Number | Title | Issue Date |
| 6417178 | Amyloid binding nitrogen-linked compounds for the antemortem diagnosis of alzheimer's disease, in vivo imaging and prevention of amyloid deposits Amyloid binding compounds which are derivatives of Chrysamine G, pharmaceutical compositions containing, and methods using such compounds to identify Alzheimer's brain in vivo and to diagnose other pathological conditions characterized by amyloidosis, suc... | 07/09/2002 |
| 6008330 | Process for the preparation of aminodiarylazo compounds The present invention relates to a novel process for the preparation of aminodiarylazo compounds by reducing nitrodiarylazo compounds using 1,2-alkanediols or 1,2-aminoalkanols.... | 12/28/1999 |
| 5883234 | Process for dyeing cellulosic materials with disazo dyestuffs The novel process for dyeing cellulosic materials with disazo dyestuffs of the formula ##STR1## in which the substituents NHR1 and NHR2 are in each case in the 6- and/or 7-position and R1, R2, m, n, p and q... | 03/16/1999 |
| 5808016 | Disazo dyestuffs The novel disazo dyestuffs of the formula (I) ##STR1## in which the substituents and indices have the meaning given in the description, are outstandingly suitable for dyeing cellulosic materials, in particular paper, and are distinguished by good fas... | 09/15/1998 |
| 5663309 | Diazo dyes having a phenylene group as the middle component and a naphthalene group as the terminal diazo component Azo dyes of the formula ##STR1## in which R1 is hydrogen or substituted or unsubstituted phenylamino, R2 is hydrogen, amino or N-mono- or N,N-di-C1 -C4 alkylamino, R3 is hydrogen or hydroxyl, R4 | 09/02/1997 |
| 5332806 | Disazo dyes which contain 2-hydroxynaphthyl moiety Azo dyes of the formula ##STR1## where A and B are each independently of the other substituted or unsubstituted phenyl or naphthyl and X is --N(R1)--SO2 --, --O--SO2 -- or --SO2 --N(R1)--, where ... | 07/26/1994 |
| 5312906 | Optical information recording media and bisazo compounds for use therein Bisazo compounds of formula (I), an intermediate for producing the bisazo compound of formula (I), and trisazo compounds of formula (II) for use in optical information recording media, and methods of producing these compounds are disclosed: ##STR1## ... | 05/17/1994 |
| 5233027 | Copper complexes of sulpho groups containing disazo dyestuffs The new disazo dyestuffs of the formula (I) ##STR1## in which the substituents and indices have the meaning given in the description, and salts thereof are outstandingly suitable for dyeing cellulose-containing materials and leather in blue shades ha... | 08/03/1993 |
| 4988805 | Naphtholazophenylazoaminonaphthol compounds and copper complexes thereof The dyestuffs of the general formulae ##STR1## and salts thereof wherein X denotes hydrogen, alkoxy or NHR3, R denotes hydrogen, alkyl or alkoxy, R1 denotes alkyl, R2 and R3 denote hydrogen, alkyl, alkylcarbonyl, alk... | 01/29/1991 |
| 4540651 | Electrophotographic photosensitive member There is disclosed an electrophotographic photosensitive member comprising a photosensitive layer comprising a combination of a carrier generating layer and a carrier transporting layer provided on an electroconductive support, the carrier generating laye... | 09/10/1985 |
| 4412950 | Monoazo and disazo colorants This invention relates to novel (N-substituted sulfonamido) monoazo and disazo compounds, to acid-addition salts of said azo compounds which are useful as direct dyes particularly in the dyeing of cellulose, to novel (N-substituted sulfonamido) substitute... | 11/01/1983 |
| 4321318 | Disazo photoconductor and process of manufacture of electrophotographic element A layered xerographic photoconductor having a charge generating layer which includes a photosensitive dye molecule which is soluble in chlorinated organic solvents, specifically methylene chloride, the dye molecule being ##STR1## and a P-type charge ... | 03/23/1982 |
| 4055558 | Tetrakisazo dyestuffs The subject matter of the present invention relates to tetrakisazo dyestuffs which in the acid form correspond to the formula ##STR1## wherein Z1, Z2 = an optionally substituted amino group R = h or a non-ionogenic substituent, in par... | 10/25/1977 |
| 4033946 | Tetrakisazo dyestuffs The subject matter of the present invention relates to tetrakisazo dyestuffs which in the acid form correspond to the formula ##STR1## wherein R = H or substituent, R1 = h or SO3 H Z1, z2 = an optionally substit... | 07/05/1977 |
