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8119804 Organic semiconducting layers  
An organic semiconducting layer formulation containing an organic binder which has a permittivity, ∈, at 1,000 Hz of 3.3 or less and a polyacene compound of Formula A: and processes for the p...
7935434 Organic electroluminescent device, display, and illuminating device  
An organic electroluminescent element including at least an emission layer sandwiched between an anode and a cathode, wherein the emission layer comprises at least a compound represented by Formula...
7829714 Method for measuring aromatase activity  
The present invention relates to compounds useful for measuring aromatase activity. The invention further provides methods for measuring aromatase activity and for screening test agents which...
7794536 Method for manufacturing pigment dispersion  
A method is provided for pigment dispersion. The method includes preparing a solution in which the pigment is dissolved in an organic acid, preparing a reaction liquid capable of decreasing the...
7750159 Phenanthroline derivative and light emitting element and light emitting device using the same  
It is an object of the present invention to provide a novel material that can be used for an electron injecting material. In addition, it is an object of the present invention to provide a...
7728139 Solvent-free process for the preparation of diketopyrrolopyrrole derivatives  
The present application relates to compounds of formula A(D)x(E)y, (I), compounds of formula (III), compounds of formula (X), as well as processes for the preparation thereof, processes where the...
7723521 Azaperylenes as organic semiconductors  
A novel semiconductor device comprises an azaperylene organic semiconductor of the formula I wherein the substitutents are defined herein.
7691197 Method of preparing yellow pigments  
The present invention relates to a method of preparing a yellow pigment comprising an asymmetric quinolonoquinolone in an amount greater than 50% by weight of the yellow pigment. Also disclosed are...
7592414 Materials that can be structured, method for producing the same and their use  
The invention provides low molecular weight or polymeric organic materials in which at least one hydrogen atom is replaced by a group of the formula (A) where R is alkyl group, alkoxyalkyl group,...
7585364 Quinacridone derivatives for pigment dispersions  
A quinacridone derivative according to Formula (I): wherein R1 and R2 are each independently selected from the group consisting of hydrogen, alkyl, and halogen. Also, methods for preparing...
7576208 Organic semiconductor layers  
A compound of formula 9 and uses thereof in various electronic devices and in a formulation for ink jet printing and in an organic semiconducting layer formulation.
7537654 Quinacridone nanoscale pigment particles and methods of making same  
A process for preparing coated nanoscale quinacridone pigment particles, includes: mixing a quinacridone pigment precursor or crude quinacridone pigment with a first solution including an acid to...
7427324 Methods of making quinacridone nanoscale pigment particles  
A nanoscale pigment particle composition includes a quinacridone pigment having at least one functional moiety, and a sterically bulky stabilizer compound having at least one functional group,...
7427323 Quinacridone nanoscale pigment particles  
A nanoscale pigment particle composition includes a quinacridone pigment including at least one functional moiety, and a sterically bulky stabilizer compound including at least one functional...
7319105 Cytotoxic agents  
The invention provides compounds of the invention pharmaceutical compositions comprising a compound of the invention, processes for preparing compounds of the invention, intermediates useful for...
7211139 Process for preparing nanoscale quinacridone  
This invention relates to a method for production of nanoscale size quinacridones through a wet-salt attrition process by combining a crude quinacridone pigment in the presence of (i) an inorganic...
7166158 Quinacridone pigment compositions comprising unsymmetrically substituted components  
The present invention relates to a novel quinacridone pigment compositions, a process using a mixed amine synthesis for the ultimate production of the compositions and to their use as colorants for...
7122081 Process for aqueous milling of quinacridone pigments  
The present invention is directed to an aqueous process for reducing particle size of organic pigments by milling the crude pigment in the presence of a water soluble styrene copolymer dispersant,...
7115619 N8, N13 -disubstituted quino[4,3,2-kl]acridinium salts as therapeutic agents  
The present invention pertains to certain N8,N13-disubstituted quino[4,3,2-kl]acridinium salts of formula (Q−) which inhibit telomerase wherein: p is an integer from 0 to 4; q is an integer from 0...
7109043 Fluorescent probe for magnesium ion determination  
A fluorescent probe for measuring magnesium ion, which can selectively form a complex with magnesium ion in aqueous system is disclosed. The fluorescent probe for measuring magnesium ion according...
7026481 Synthesis for quinacridone compounds  
Disclosed is a process for forming a N,N′-diarylquinacridone compound comprising the step of reacting a 1,4-dialkylcarboxylate-2,5-bis(N-arylamino) benzene with an iodoaryl compound to form the c...
6987186 Synthesis of small particle size quinacridone of beta crystal phase  
The present invention relates to a process for the synthesis of beta-quinacridone by oxidation in the presence of selected additives that promote the formation of the desired crystal phase and...
6972333 Preparation of quinacridonequinones and substituted derivatives of same  
A process for by oxidizing a quinacridone in a liquid medium with a non-metal oxidant producing a quinacridonequinone.
6869472 2,9-dichloroquinacridone pigment  
A new high chroma, opaque gamma 2,9-dichloroquinacridone pigment specified by its particle shape and size and characterized by C.I.E color space values in masstone, and a process for its...
6867301 Oxidation process for highly dispersible quinacridone pigments  
A process for the preparation of a quinacridone comprises oxidation of a 6,13-dihydroquinacridone using hydrogen peroxide, wherein a polymeric dispersant is present in the oxidation reaction...
6864371 Preparation of beta quinacridone pigments  
A novel method for the preparation of a beta quinacridone pigment is described by the oxidation of 6,13-dihydroquinacridone in the presence of polyvinyl pyrrolidone, a catalyst and optionally a...
6828159 Carbopyronine fluorescent dyes  
The invention relates to the use of carbopyronine compounds of general formula (I) as marker groups in methods for detecting analytes. The invention also relates to novel carbopyronine compounds...
6818053 Process for producing quinacridone pigment microcrystals  
The method for preparation quinacridone pigment nanocrystals with sub micrometer to nanometer in average size comprising, supplying supercritical or semi-critical liquid, which dissolves...
6664396 One step synthesis for quinacridone compounds  
Disclosed is a process for forming a N,N′-diarylquinacridone compound comprising the step of reacting a N,N′-unsubstituted quinacridone compound with a haloaryl compound in the presence of a met...
6632822 Compounds and therapeutic methods  
The present invention relates to indolo[3,2-j]phenanthridine compounds and their use in the treatment of cancer and other diseases of humans and animals including parasitic diseases such as those...
6626990 Use of aromatic compounds as phase directors and particle size reducers for quinacridone pigments  
The present invention relates to a process for producing alpha, gamma-I, gamma-II and gamma-III crystal modifications of quinacridone and transparent quinacridone pigments including the solid...
6608052 Compounds useful as anti-inflammatory agents  
Disclosed are novel aromatic compounds of the formula(I) wherein G, E, W, Ar, X, Y and Z. The compounds are useful for treating diseases or pathological conditions involving inflammation such as...
6494948 Preparation of quinacridone pigment compositions  
This invention relates to a process for preparing quinacridone pigment compositions by (a) heating a reaction mixture containing(i) 2,5-dianilinoterephthalic acid or...
6494949 Process for the preparation of beta-phase quinacridone  
A process for producing beta-phase quinacridone by (a) reacting 2,5-dianilino-terephthalic acid with polyphosphoric acid in the presence of 2,5-dianisidino-terephthalic acid at a reaction...
6469171 Syntheses of a variety of lamellarin compounds and analogues  
The present invention relates to methods for preparing a variety of Lamellarin compounds and analogues via a synthetic intermediate, which methods involved the step of performing an intramolecular...
6465652 Quinacridone pigment  
A new polymorphic form of 2,9-dichloroquinacridone having improved pigmentary properties and a method of forming said 2,9-dichloroquinacridone comprising the step of ring closure of appropriately...
6406533 6,13-dihydroquinacridone derivatives  
A 6,13-dihydroquinacridone derivative of formula I: (MO3S)m—Q—[CH2—(X)—(Y)n]o (I)wherein:Q represents a 6,13-dihydroquinacridone moiety of formula II; A and B each independently represent a substit...
6402829 Process for preparing a substantially pure gamma phase quinacridone pigment of large particle size  
An improved process for producing a substantially pure gamma phase a quinacridone pigment or pigment derivative involving preparing an aqueous slurry of a crude quinacridone in the presence of...
6365594 Heterocycle-condensed morphinoid derivatives (II)  
Heterocycle-condensed morphinoid derivatives of formula (I), or solvates or salts thereof, are potent and selective delta opioid agonists and antagonists and are useful as i.a. analgesics....
6355783 Compounds for mass coloration of high temperature polymers  
The invention relates to novel soluble pigment precursors possessing not only higher thermal stability but also improved solubility characteristics and to a process for mass coloration of high...
6323342 Gamma quinacridone pigment  
A new gamma-I type quinacridone pigment characterized by C.I.E color space values in masstone, and a process for its preparation is disclosed. The new gamma quinacridone pigment is especially...
6313300 Oxidation process for preparing quinacridone pigments  
A process for preparing an unsubstituted or substituted quinacridone of the formula ##STR1##or a solid solution of quinacridones of the formula (I), wherein X and Y are independently 1 or 2...
6312512 Quinacridone mixed-crystal pigments of the gamma phase  
The invention relates to novel quinacridone mixed crystal pigments consisting of a) from 82.5 to 99% by weight of unsubstituted γ-phase quinacridone of the formula (I) ##STR1##in which R1 and R2 ...
6274728 Soluble chromophores having improved solubilizing groups  
Compounds of formula A(B)x (I),wherein x is an integer from 1 to 8, A is the radical of a chromophore of the quinacridone, anthraquinone, perylene, indigo, quinophthalone, indanthrone,...
6264733 Pigment particle growth and/or crystal phase directors  
Pigment particle growth and/or crystal phase directors of the following formula: (MO3 S)m --Q--(CH2 --(X)--(Y)n)owherein: Q represents a pigment moiety; M represents a metal cation, quaternary N...
6248165 Mixed crystals and solid solutions of 1,4-diketopyrrolopyrroles  
Ternary solid solutions useful as pigments are disclosed. The ternary solid solutions result from incorporating a third component, which is a diketopyrrolopyrrole or quinacridone pigment, into the...
6241814 Process for preparing quinacridone pigments  
Linear unsubstituted and substituted quinacridone pigments and quinacridone mixed-crystal pigments are obtained by cyclizing dianilinoterephthalic acid with polyphosphoric acid and then hydrolyzing...
6225472 6,13-dihydroquinacridone derivatives  
A 6,13-dihydroquinacridone derivative of formula I: (MO3 S)m --Q--[CH2 --(X)--(Y)n ]o (I)wherein: Q represents a 6,13-dihydroquinacridone moiety of formula II; ##STR1## A and B each independently...
6221114 Colorant salts and their use in dyeing polymeric material  
Dye salts which are free from fiber-reactive radicals and have the formula ##STR1##where Chr is an (m+n)-valent radical of a chromophore from the series of the metal-free or metal-containing...
6090196 Beta quinacridone pigment  
A new beta quinacridone pigment characterized by masstone and tint reflection spectra, and a process for its preparation is disclosed. The new beta quinacridone pigment is especially useful for...
Matches 1 - 50 out of 208 1 2 3 4 5 >