Did You Know...
...that the Eveready Battery began as an invention called the "electric flowerpot," which was a tube with a battery and light bulb inside? The idea was to fasten this gizmo to the side of a flowerpot so it would illuminate the flowers from the bottom. The idea died on the vine and the businessman who licensed the flower pot, Conrad Huber, was left with a pile of useless tubes -- until he found a way to market them as batteries to light the world!
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| Number | Title | Issue Date |
| 7402369 | Mono azo iron complex compound, and charge controlling agent and toner using the same The present invention is to provide a charge controlling agent and negatively chargeable toner that do not contain any toxic metal, are essentially free from the risk of evoking ignition or explosion, and can exhibit a high charge amount and rapid initial increase i... | 07/22/2008 |
| 7235645 | Cationic azo monomers or symmetric dimers, preparation thereof, compositions comprising same and process for dyeing keratin fibers Disclosed herein are compounds of formulae (I) and (II) below, and also to processes for the synthesis thereof: Also disclosed herein are dye compositions comprising said compounds, as cationic direct dyes, and m... | 06/26/2007 |
| 6410766 | Emitting materials used for organic EL based on tridentate ligands A series of emitting materials used for organic EL based on tridentate ligands are characterized as Formula 1, Formula 2 and Formula 3, where: the group O-I-N is a bidentate ligand such as 8-hydroxyquinoline and 2-(o-hydroxyphenyl)-benzoxazole, II, III ar... | 06/25/2002 |
| 6271355 | Amine pyrazole nickel phthalocyanine dyes for coloration Dyes of Formula (1) which are useful for the coloration of e.g. cellulosic materials and leathers. ##STR1## wherein: NiPc is a nickel phthalocyanine radical; r has a value from 1 to 3 inclusive; m has a value from 1 to 3 inclusive; p has a value from 0 to 1 in... | 08/07/2001 |
| 5850086 | Iron complexes for bleach activation and stereospecific oxidation A bleach and oxidation catalyst is provided comprising a catalytically active iron complex which can activate hydrogen peroxide or peroxy acids, for example.... | 12/15/1998 |
| 5208325 | Cationic 1,3,4-thiadiazole dyestuffs Cationic 1,3,4-thiadiazole dyestuff of the formula ##STR1## in which R1 and R2, independently of one another, denote hydrogen, alkyl, alkenyl, cycloalkyl, aralkyl, aryl, a heterocycle, said heterocycle having a direct bond to the nit... | 05/04/1993 |
| 5037964 | Metal-free sulfo group-free basis disazo and trisazo compounds containing two different 6-hydroxypyrid-2-one coupling component radicals (i) Metal-free compounds of the formula ##STR1## These compounds are useful as dyes for paper and textiles.... | 08/06/1991 |
| 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 |
| 4940783 | Disazo containing diaminostilbene as diazo component and an aniline coupling component bearing a cationic alkyl ammonium group Disazo dyes which are suitable for dyeing and printing, especially of paper of all kinds. The dyes correspond to the formula ##STR1## in which R1, R2, R3 and R4 are each an alkyl radical, A is an alkylene radica... | 07/10/1990 |
| 4921945 | Disazo dyes containing an acetoacetabukube coupling component and a quaternized aminoalkylene aminocarbonyl group bound to it Disazo dyes which are useful for dyeing and printing, of the formula ##STR1## in which: D is the radical of a substituted or unsubstituted, homocyclic or heterocyclic diazo component, V1 and V2 independently of one another are h... | 05/01/1990 |
| 4764175 | Metal-free monoazo and disazo compounds having a 1-hydroxy-5,6-, 7- or 8- substituted 1,3,5-triazinylamino-3- or 4 sulfonic acid coupling component radical and 1:1 copper complexes Metal-free compounds of the formula, ##STR1## and 1:1 copper complexes of metallizable metal-free compounds of said formula and internal and external salts of metal-free compounds of said formula and of 1:1 copper complexes of metallizable metal-free... | 08/16/1988 |
| 4754022 | Cationic dyes from diazotized 5-aminoisothiazoles and tetrahydroquinolines or indolines The invention relates to novel cationic isothiazolazo compounds of the formula ##STR1## wherein R1 is unsubstituted or substituted C1 -C4 alkyl R2 is hydrogen or C1 -C4 alkyl, R3... | 06/28/1988 |
| 4673735 | Azo compounds having at least one 6-hydroxypyrid-2-one coupling component radical metal complexes thereof and intermediates therefor A compound of formula I ##STR1## in metal-free; 1:1 or 1:2 metal complex form and, when an acid group is present, in free acid or acid addition salt form, in which R1 is hydrogen or --N.dbd.N--D where D is a diazo component and R, T and B ... | 06/16/1987 |
| 4670546 | Disazo and polyazo compounds containing at least two cationic groups in metal-free or 1:1 or 1:2 metal complex form Compounds of the formula ##STR1## in metal-free, 1:1 or 1:2 metal complex form, or in acid addition salt form, where the symbols are defined in the specification, useful as dyes for, for example, regenerated cellulose, cotton, synthetic polyamides an... | 06/02/1987 |
| 4665162 | 1:1 and 1:2 metal complexes of sulfo group-free azo compound having on average at least 1.3 basic water-solubilizing groups Metal-free azo compounds of the formula ##STR1## wherein Ra is an aromatic group or an active methylene coupling component radical as defined in the specification, Rt is an arylazo group or a group of the formula --Y--Z, wherein Y is a direct b... | 05/12/1987 |
| 4587292 | Sulfo group-free azo compounds having on average at least 1.3 basic water-solubilizing groups in metal-free, 1:1 metal complex or 1:2 metal complex form Metal-free azo compounds of the formula ##STR1## wherein Ra is an aromatic group or an active methylene coupling component radical as defined in the specification, Rt is an arylazo group or a group of the formula --Y--Z, wherein Y is a direct b... | 05/06/1986 |
| 4563409 | Azo moiety containing metal complexes in toners A symmetric 2:1 metal complex represented by the general formula: ##STR1## where R is a hydrogen atom, an alkyl group having from 1 to 10 carbon atoms, an alkoxy group having from 1 to 4 carbon atoms, an alkoxycarbonyl group having from 2 to 5 carbon... | 01/07/1986 |
| 4557732 | Process for spin-dyeing of acid-modified polymers of acrylonitrile by the wet-spinning procedure using quaternary ammonium or cyclammonium dyestuffs of low M value and high cation weight having two or three said ammonium or cyclammonium groups Improvement of a process for spin-dyeing acid-modified polymers or copolymers of acrylonitrile in which cationic quaternary dyestuffs are added to the spinning mass and spun according to the wet-spinning procedure. The improvement is characterized by usin... | 12/10/1985 |
| 4550158 | Metal-free disazo compounds containing at least two basic water-solubilizing groups and having a 1-phenylpyrazole middle component radical and a 6-hydroxyprid-2-one terminal coupling component Metal-free azo compounds of the formula ##STR1## wherein Ra is an aromatic group or an active methylene coupling component radical as defined in the specification, Rt is an arylazo group or a group of the formula -Y-Z, wherein Y is a direct bo... | 10/29/1985 |
| 4544737 | Piperazinyl-triazinylnaphtholsulphonic acid azo dyes Water-soluble triazine compounds which, in their betaine form correspond to the formula ##STR1## wherein R1 denotes hydrogen or alkyl, R2 and R3 independently of one another denote hydrogen, alkyl, alkenyl or aralkyl,... | 10/01/1985 |
| 4483796 | Sulfo group-free disazo and polyazo compounds containing two 1-phenylpyrazol-5-one coupling component radicals and at least two basic or cationic groups Disazo and polyazo compounds of the formula ##STR1## wherein each A is independently ##STR2## and each R3 is independently C1-4 alkyl, or each A, R3 and the ##STR3## radical to which they are attached, take... | 11/20/1984 |
| 4468347 | Sulfo group-free disazo and polyazo compounds containing at least two basic or cationic group and which are in metal-free or 2:1 metal complex form Disazo and polyazo compounds of the formula ##STR1## wherein each A is independently ##STR2## and each R1 and the ##STR3## radical to which it is attached, taken together, independently, are ##STR4## wherein ring B may ... | 08/28/1984 |
| 4248772 | Positively or negatively charged azo compounds containing a ballasting group Novel azo compounds of the general formula are provided, wherein A is a charged group which may be positively or negatively charged, E is a counter ion which carries a charge of opposite sign to that carried by A, BAL represents a ballasting group attached to ... | 02/03/1981 |
| 4082740 | Quaternary basic azodyestuffs containing a propenyl amino radical New basic azo dyestuffs of the formula ##STR1## where D.sup.(+) is the radical of an aromatic or heterocyclic diazo component containing a quaternary nitrogen atom, A is an aromatic radical or, together with the -(NR)-member of the formula, forms a h... | 04/04/1978 |
| 4028321 | Basic azo amino-phenylene dyestuffs A basic dyestuff of the formula ##STR1## wherein R1 is hydrogen, alkyl of 1 to 5 carbon atoms, hydroxyalkyl of 1 to 4 carbon atoms, cyanoalkyl of 1 to 4 carbon atoms in the alkyl moiety or chloroalkyl of 1 to 4 carbon atoms, R'2... | 06/07/1977 |
| 3956271 | Process for the production of concentrated solutions of cationic azo dyes Concentrated solutions of cationic azo dyes are prepared directly from sparingly soluble salts of the dye in a one-step reaction by reacting the sparingly soluble dye with a non-chromophoric carboxylate salt, the cation of which forms an insoluble or spar... | 05/11/1976 |
