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Felix Hoffmann, a German chemist, was searching for something to relieve his father's arthritis. In doing so, he "rediscovered" acetylsalicylic acid and in 1900, patented a stable process for developing it. Hence, we have aspirin.
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| Number | Title | Issue Date |
| 7294185 | Reaction of carbon black with diazonium salts, resultant carbon black products and their uses Processes for preparing a carbon black product having an organic group attached to the carbon black. In one process at least one diazonium salt reacts with a carbon black in the absence of an externally applied electric current sufficient to reduce the diazonium sal... | 11/13/2007 |
| 7282526 | Particle having an attached halide group and methods of making the same A modified particle or aggregate is disclosed wherein a particle has an attached group having the formula: wherein the substituents are defined in the disclosure. Modified particles with attached polymers are als... | 10/16/2007 |
| 7223302 | Methods of preparing aqueous colored pigment dispersions, and inkjet ink compositions The present invention describes methods for preparing aqueous colored pigment dispersions comprising the step of combining, in any order, a) a colored pigment, b) an azo coupler, c) an aromatic amine, d) a diazotizing agent, and e) an aqueous medium, wherein the aro... | 05/29/2007 |
| 7205348 | Rubber composition and method of making same Process of producing unvulcanized rubber useful for producing vulcanized rubber with improved hysteresis, which comprises mixing a composition comprising unvulcanized rubber, carbon black and xanthogen polysulfide at an elevated temperature in a non-productive stage... | 04/17/2007 |
| 7175946 | Modified pigment products and black matrixes comprising same The present invention describes modified pigment products comprising a pigment having attached at least one photopolymerizable group and at least one ionic or ionizable group. Dispersions, black matrixes, and resin compositions comprising these modified pigment prod... | 02/13/2007 |
| 7175930 | Conducting polymer-grafted carbon material for fuel cell applications A composition comprising particulate carbonaceous material and a conducting polymer containing hetero atoms. The composition can further comprise a metal. Devices comprising the composition can be constructed including supported electrocatalysts, membrane electrode ... | 02/13/2007 |
| 7173078 | Process for preparing modified pigments A process for preparing a modified pigment having attached at least one organic group is described. This process comprises the step of reacting a dried mixture comprising a pigment having attached at least one reactive group and a modifying agent. The dried mixture ... | 02/06/2007 |
| 7077898 | Black pigment compositions The present invention relates to black pigment compositions comprising (a) carbon black, and (b) a compound of the formula (MO3S)m-Q(CH2)k—X]n, (I) ... | 07/18/2006 |
| 7049039 | Coloring agent for toner, and toner A coloring agent for use in toners which comprises coloring particles modified with a surface modifier having in one molecule a hydrophilic moiety, a hydrophobic moiety, and a reactive moiety between the hydrophilic moiety and the hydrophobic moiety. Also disclosed ... | 05/23/2006 |
| 7026397 | Curable compositions The present invention is constituted of a curable composition which comprises, as essential components, the following four components: (A) a vinyl polymer having at least one hydrosilylatable alkenyl group within the molecule, (B) a hydrosi... | 04/11/2006 |
| 7025820 | Method for forming an aqueous carbon black dispersion A method for forming an aqueous carbon black dispersion including providing a reaction mixture including carbon black having a DBP uptake of greater than 90 cc/100 g of the carbon black, a monovalent ion persulfate, an aqueous medium, and, in some embodiments, a str... | 04/11/2006 |
| 7001936 | Pigmented inkjet ink The present invention provides pigmented inks comprising self-dispersing pigment and an amino-containing compound. The addition of an amino-containing compound to the self-dispersing pigment can improve the reliability and performance of the ink in an inkjet printhe... | 02/21/2006 |
| 6960250 | Carbonaceous material A carbonaceous material with organic groups obtainable by reacting carbonaceous material with organic compounds of the general formula I R1—N═N—R2 (I). The carbonaceous material with organic groups is produced by ... | 11/01/2005 |
| 6958308 | Deposition of dispersed metal particles onto substrates using supercritical fluids A method for producing dispersed metal particles on a substrate and the compositions produced is disclosed. A method for producing the particles comprises exposing an organometallic and a particulate substrate to supercritical or near supercritical fluid under condi... | 10/25/2005 |
| 6942724 | Modified organic colorants and dispersions, and methods for their preparation The present invention relates to methods of preparing modified organic colorant dispersions comprising the step of combining, in any order, i) an organic colorant; ii) an hydroxide reagent; and iii) an aqueous medium, to form a modified organic colorant dispersion. ... | 09/13/2005 |
| 6936097 | Modified organic colorants and dispersions, and methods for their preparation The present invention relates to methods of preparing modified organic colorant dispersions comprising the step of combining, in any order, i) an organic colorant; ii) an hydroxide reagent; and iii) an aqueous medium, to form a modified organic colorant dispersion. ... | 08/30/2005 |
| 6916435 | Process of making graphite articles A process for preparing graphite articles is presented. In particular, the process includes employing a particulate fraction comprising at least about 35 weight percent coke, coal or combinations thereof having a diameter such that a major fraction of it passes thro... | 07/12/2005 |
| 6916367 | Modified pigments and process for preparing modified pigments Processes for preparing modified pigments are described. In one embodiment, the process comprises the step of combining, in any order, a pigment having attached an electrophilic group and a thiol reagent comprising at least one —SH group and at least two ionic or ... | 07/12/2005 |
| 6852158 | Method for attachment of one or more organic groups onto a particle A method of attaching one or more organic groups onto a particle is described which involves reacting at least one radical with at least one particle wherein the radical is generated from the interaction of at least one transition metal compound with at least one or... | 02/08/2005 |
| 6833026 | Modified pigments and process for preparing modified pigments Processes for preparing modified pigments are described. In one embodiment, the process comprises the step of combining, in any order, a pigment having attached an electrophilic group and a thiol reagent comprising at least one —SH group and at least two ionic or ... | 12/21/2004 |
| 6821334 | Process for producing sulfonated solid particles A process produces a sulfonated solid particle by burning sulfur to yield gaseous sulfur dioxide, subjecting the gaseous sulfur dioxide to catalytic oxidation to yield gaseous sulfur trioxide, and sulfonating a dry powdery or granular solid particle with the gaseous... | 11/23/2004 |
| 6740151 | Reaction of carbon black with diazonium salts, resultant carbon black products and their uses Processes for preparing a carbon black product having an organic group attached to the carbon black. In one process at least one diazonium salt reacts with a carbon black in the absence of an externally applied electric current sufficient to reduce the diazonium sal... | 05/25/2004 |
| 6736892 | Pigment dispersions containing styrenated and sulfated phenol alkoxylates The present invention provides sulfated and carboxymethylated surfactants and dispersants produced by reacting a styrenated phenol alkoxylate with sulfamic acid and then neutralizing with a base such as ammonium hydroxide. The instant invention also provides pigment... | 05/18/2004 |
| 6660075 | Carbon black The present invention is directed to carbon blacks having organic groups. The organic groups are connected by one or two carbon atoms of a C--C single bond or double bond that are not a component of an aromatic system, contain at least one activating subs... | 12/09/2003 |
| 6645287 | Coating compositions comprising high t-area carbon products The present invention discloses coating compositions comprising a liquid vehicle and a carbon product having a t-area greater than or equal to 400 m2 /g. In addition, the present invention discloses coating compositions comprising a liquid vehi... | 11/11/2003 |
| 6554891 | Ink composition and method for inkjet recording using the same An ink composition containing a surface-modified pigment is provided which can realize anti-clogging properties and images having high print density. The ink composition comprises at least a colorant, glycerin, a glycol compound, and water, the colorant b... | 04/29/2003 |
| 6551393 | Methods of making a particle having an attached stable free radical A modified particle is disclosed wherein a particle has an attached group having the formula: ##STR1## wherein Ar represents an aromatic group; R1 represents a bond, an arylene group, an alkylene group, ##STR2## wherein R4 is an... | 04/22/2003 |
| 6524383 | Method for manufacturing pigment dispersion, pigment dispersion obtained by this method, and ink jet recording ink using same Disclosed is a pigment dispersion that can be used for an ink jet printing-use pigment ink that affords stable printing characteristics and has excellent storage stability in an ink jet printer having a head driven at a high frequency and having finer noz... | 02/25/2003 |
| 6494946 | Reaction of carbon black with diazonium salts, resultant carbon black products and their uses Processes for preparing a carbon black product having an organic group attached to the carbon black. In one process at least one diazonium salt reacts with a carbon black in the absence of an externally applied electric current sufficient to reduce the di... | 12/17/2002 |
| 6432196 | Process for producing briquetted and pressed granular material and use thereof The present invention relates to a process for producing briquetted and pressed granular material and the use thereof for coloring building materials, such as concrete and asphalt, and organic media, such as paint systems, plastics and colored pastes.... | 08/13/2002 |
| 6402825 | Surface modified carbon black The invention provides a surface modified carbon black and method for production. The surface modified carbon black is produced by reacting self-dispersing or oxidized carbon with a steric inducing compound via an organic acid halide intermediary. The ste... | 06/11/2002 |
| 6350519 | Particle having an attached halide group and methods of making the same A modified particle or aggregate is disclosed wherein a particle has an attached group having the formula: ##STR1## wherein the substituents are defined in the disclosure. Modified particles with attached polymers are also disclosed as well as methods of ... | 02/26/2002 |
| 6290767 | Carbon black Carbon blacks doped with elements that are not carbon, wherein pairs of carbon atoms have been replaced by iso-electronic pairs of elements or combinations of elements. They can be used as a pigment or filler in rubber, plastics, paints, inks or the like.... | 09/18/2001 |
| 6221143 | Cationic pigments and aqueous compositions containing same The present invention relates to cationic pigments having an organic group which comprises: a) at least one aromatic group, at least one C1 -20 alkyl group, or both; and b) at least one cationically charged ionic group, at least one ... | 04/24/2001 |
| 6221142 | Superior waterfastness and bleed control with specifically treated pigments for ink-jet printing The ink of the invention comprises a vehicle and a colorant. The colorant is a water-insoluble pigment that has been chemically modified to be water dispersable by addition of functional groups to the surface of the pigment resulting in water soluble colo... | 04/24/2001 |
| 6214100 | Ink-jet printing inks containing ester modified macromolecular chromophores The ink of the invention comprises a vehicle and a macromolecular chromophore colorant. The colorant is a water-insoluble pigment that has been chemically modified to be water dispersible by addition of functional groups to the surface of the pigment resu... | 04/10/2001 |
| 6156828 | Rubber base asphalt emulsion method A gel-like emulsion containing natural rubber and crumb rubber from used vehicle tires which may be added to an asphalt paving emulsion at ambient temperature for chip coating, slurry sealing, microsurfacing, soil stabilization or pavement recycling.... | 12/05/2000 |
| 6103380 | Particle having an attached halide group and methods of making the same A modified particle is disclosed wherein a particle has an attached group having the formula: ##STR1## wherein Ar represents an aromatic group; R1 represents a bond, an arylene group, an alkylene group ##STR2## wherein R4 | 08/15/2000 |
| 6068688 | Particle having an attached stable free radical and methods of making the same A modified particle is disclosed wherein a particle has an attached group having the formula: ##STR1## wherein Ar represents an aromatic group; R1 represents a bond, an arylene group, an alkylene ##STR2## wherein R4 is... | 05/30/2000 |
| 6042643 | Reaction of carbon black with diazonium salts, resultant carbon black products and their uses Processes for preparing a carbon black product having an organic group attached to the carbon black. In one process at least one diazonium salt reacts with a carbon black in the absence of an externally applied electric current sufficient to reduce the di... | 03/28/2000 |
