Abstract: The present invention relates to the use of a CuPc composition consisting essentially of CuPc, e.g., C.I. Pigment Blue 15:3, and a hydroxymethylphthalimido CuPc, as a colorant in electrophotographic toners and developers, powders and powder coating materials, electret materials, inkjet inks, and color filters, wherein the phthalocyanines have a particle morphology with an average length-to-width ratio of more than 2.5:1.
Type:
Grant
Filed:
November 16, 2001
Date of Patent:
June 18, 2002
Assignee:
Clariant GmbH
Inventors:
Hans-Tobias Macholdt, Ruediger Baur, Eduard Michel, Josef Geisenberger, Heidemarie Menzel, Andreas Harz
Abstract: The present invention relates to terpene ethers of the general formula (I)
in which the substituents have the meanings defined in the description, to a process for their preparation and to their use.
The novel terpene ethers are suitable as traction fluids, as fragrances, as solvents and as reactive intermediates.
Type:
Grant
Filed:
March 19, 1999
Date of Patent:
May 28, 2002
Assignee:
Clariant GmbH
Inventors:
Adalbert Wagner, Frank Ebmeyer, Georg Stuhlmüller, Maximilian Simon, Herbert Vojacek
Abstract: The invention relates to a process for preparing 4-(4′-carboxyphenyl)pyridine, which comprises oxidizing a 4-phenyl-N-acyldihydropyridine of the formula (II)
where
R1 is a bulky alkyl, alkylaryl, arylalkyl or alkoxy group and
R2 is a straight-chain or branched, substituted or unsubstituted alkyl radical having from 1 to 8 carbon atoms,
by means of an oxidizing agent selected from the group consisting of permanganates, nitric acid, Cr(VI) compounds, oxygen and air to give the compound of the formula (I)
where M is a cation.
Type:
Grant
Filed:
February 15, 2001
Date of Patent:
May 21, 2002
Assignee:
Clariant GmbH
Inventors:
Andreas Meudt, Stefan Scherer, Peter Koch, Gerhard Demmer, Frank Vollmüller
Abstract: Biaryls, e,g,. biphenyls, phenylpyridines, phenylfurans, phenylpyrroles, phenylthiophenes, bipyridines, pyridylfurans or pyridylpyrroles are prepared in high yields by coupling aromatics with an aromatic boric acid or boric ester in the presence of a palladaphosphacyclobutane catalyst.
Type:
Grant
Filed:
July 13, 2000
Date of Patent:
May 21, 2002
Assignee:
Clariant GmbH
Inventors:
Holger Geissler, Steffen Haber, Andreas Meudt, Frank Vollmueller, Stefan Scherer
Abstract: A novel process is described for preparing phosphonites or phosphinites by reacting a product of a Friedel-Crafts reaction with alcohols or phenols and separating off the byproducts formed. The novelty is the aftertreatment with a protic compound, or with an oxide, hydroxide, (hydrogen)carbonate resp. (hydrogen)phosphate of a metal or with a nitrogen containing compound (as defined in claim 1), or with any combination of one or more substances of the above mentioned compound classes. Products having a low halide and aluminium content are obtained which are distinguished by an improved clear solubility and an improved action as stabilizer for polymeric materials.
Abstract: A granular surfactant composition comprising sodium silicate and linear alkylbenzenesulfonates, wherein the granular surfactant composition has a mean particle diameter of ≧50 &mgr;m and an ffc value of ≧7; a process for the preparation of this granular surfactant composition, its use, and detergents and cleaners which comprise such granular surfactant composition and a process for the making of the same; and, where appropriate, the granular surfactant composition comprises other active ingredients and auxiliaries.
Type:
Grant
Filed:
March 30, 2001
Date of Patent:
May 14, 2002
Assignee:
Clariant GmbH
Inventors:
Harald Bauer, Josef Holz, Gunther Schimmel
Abstract: The invention relates to copolymers of ethylene and at least one further olefinically unsaturated comonomer containing one or more hydroxyl groups. The invention furthermore relates to fuel oils comprising middle distillates containing a maximum of 0.5% by weight of sulfur and at least one copolymer of ethylene and at least one further olefinically unsaturated comonomer containing one or more hydroxyl groups.
Type:
Grant
Filed:
December 16, 1998
Date of Patent:
May 7, 2002
Assignee:
Clariant GmbH
Inventors:
Matthias Krull, Markus Kupetz, Raimund Wildfang
Abstract: Hybrid pigments of diketopyrrolo[3,4-c]pyrrole pigments and pigments bearing “acid” hydrogens like —NH, —OH or —CONH— groups, a process for the manufacturing of the hybrid diketopyrrolo[3,4-c]pyrrole pigments with pigments bearing “acid” hydrogens like —NH, — OH or —CONH— groups and their use as a pigment.
Type:
Grant
Filed:
March 30, 2000
Date of Patent:
April 23, 2002
Assignee:
Clariant Finance (BVI) Limited
Inventors:
Bansi Lal Kaul, Bruno Piastra, Valérie Wolf
Abstract: Claimed are novel azo dyes of the formula (I)
where the substituents are each as defined in the claims, their preparation, their use as dyes and as an ingredient of an ink-jet printing ink and also substrates dyed with such compounds.
Abstract: The invention relates to a finely divided crystalline layered sodium disilicate of the formula NaMSixO2x+1.yH2O, where M is sodium or hydrogen, x is a number from 1.9 to 4, and y is a number from 0 to 20, which comprises
from 0 to 40% by weight of alpha-disodium disilicate
from 0 to 40% by weight of beta-disodium disilicate
from 40 to 100% by weight of delta-disodium disilicate
from 0 to 40% by weight of amorphous components,
to a process for its preparation and to its use.
Type:
Grant
Filed:
July 1, 1999
Date of Patent:
April 16, 2002
Assignee:
Clariant GmbH
Inventors:
Harald Bauer, Josef Holz, Günther Schimmel
Abstract: A polyolefinic composition comprising as component a) one or more compounds of formula I to III
in which
each R1 independently is selected from linear or branched C1-30alkyl, C5-12cycloalkyl, C2-24alkenyl, C2-18alkoxyalkyl, C2-19methoxyalkanoyl, C7-30alkaryl, C7-30aralkyl, C4-24heteroaryl (where any one of the above substituents of R1 are unsubstituted or are substituted by 1 to 3 groups selected from C1-12alkyl, —OR4, —NR4R5, —COR4 and —COOR4); and C6-30aryl, unsubstituted or substituted by 1 to 5 groups R3 selected from C1-12alkyl, C1-8alkoxy, C5-6cycloalkyl, phenyl or phenoxy, —OR4, —NR4R5, —COR4 and —COOR4,
R4 and R5 independently are selected from hydrogen, C1-30alkyl (linear or branched), C5-12cycloalkyl, C6-24aryl, C7-30alkaryl or C7-30aralkyl;
A is a direct bond, a group —(P-R1)p— or an n-valent aliphatic or aromatic residue, (preferably C1-30alkylene (linear or branched), C5-12cycloalkylene, C7-30alkarylene, C7-30aralkyl
Abstract: An additive for inhibiting the formation of gas hydrates in connection with hydrocarbon production and transportation comprising the water-soluble polymers comprising structural elements of the formula
wherein
each R is independently H or C1-C5-alkyl;
X is H, an alkaline or earth alkaline metal or a quaternary ammonium group;
R1 is H or C1-C18-alkyl; and R2 is C1-C18-alkyl;
and wherein the alkyl groups represented by R1 and R2 optionally carry a hydroxy or amino substituent; and, optionally, a minor proportion of structural elements of the formula
wherein R, R1, R2 and X may have the meaning as above, and Alk is a C1-C5-alkylene chain.
Abstract: An alkoxylation catalyst is prepared by
a) reaction of one mol of a dicarboxylic acid with from 1.5 to 8 mol of an alkoxylated alcohol to form the corresponding dicarboxylic monoester,
b) formation of an alkaline earth metal salt of the dicarboxylic monoester by addition of water and from 0.45 to 0.55 mol of a basic alkaline earth metal compound per mol of dicarboxylic acid originally used,
c) partial neutralization of the alkaline earth metal salt by addition of from 0.25 to 0.7 mol of H2SO4 per mol of basic alkaline earth metal compound originally used and
d) removal of the water present at a temperature of less than 100° C.
The catalyst prepared in this way makes it possible to prepare colorless alkoxylates having a narrow homologue distribution.
Abstract: Compounds of formula (I)
with the meanings of D, R1, R2, X and Y as given in claim 1 can be used as paper dyes or direct dyes or for the preparation of ink-jet inks.
Abstract: The present invention relates to a synergistic flame retardant combination for thermoplastic polymers, preferably engineering plastics, especially for polyesters, which as component A comprises a phosphinic salt of the formula (I) defined in the description and/or a diphosphinic salt of the formula (II) and/or polymers thereof, and as component B comprises a nitrogen compound of the formula (III) to (VIII) defined in the description, or a mixture of the compounds represented by the formulae.
Type:
Grant
Filed:
January 29, 1999
Date of Patent:
April 2, 2002
Assignee:
Clariant GmbH
Inventors:
Elke Jenewein, Hans-Jerg Kleiner, Wolfgang Wanzke, Winfried Budzinsky
Abstract: Oil-soluble copolymers having an OH number of from 10 to 250 and a molecular weight of from 1000 to 100,000 g/mol, obtained from the reaction of a copolymer precursor which comprises structural units of
A) from 5 to 95 mol-% of an olefinically unsaturated carboxylic acid or a derivative of such an acid,
B) from 5 to 95 mol-% of an olefinically unsaturated compound having at least one hydrocarbon radical containing at least 6 carbon atoms, and, if desired,
C) from 0 to 40 mol-% of further structural units selected from the group consisting of C1-C6-alkyl (meth)acrylates, C1-C6-alkyl vinyl esters and C2-C6-olefins, with a reagent, which must carry at least one OH group and which, apart from this OH group, has at least one further functional group which is capable of reacting with the carboxylic acid or the derivative of a carboxylic acid as in component A), where the residual acid number is set to a value below 50 mg of KOH/g of copolymer by addition of the reagent.
Abstract: A novel process is described for preparing phosphonites or phosphinites by reacting a product of a Friedel-Crafts reaction with alcohols or phenols and separating off the byproducts formed. The novelty is the aftertreatment with a protic compound, or with an oxide, hydroxide, (hydrogen)carbonate resp. (hydrogen)phosphate of a metal or with a nitrogen containing compound (as defined in claim 1), or with any combination of one or more substances of the above mentioned compound classes. Products having a low halide and aluminum content are obtained which are distinguished by an improved clear solubility and an improved action as stabilizer for polymeric materials.
Abstract: A composition for mechanical chemical polishing of a layer in an insulating material based on a polymer with a low dielectric constant, comprising an acid aqueous suspension of cationized colloidal silica containing individualized colloidal silica particles not linked to each other by siloxane bonds and water as the suspension medium, process for mechanical chemical polishing of a layer of insulating material based on a polymer with a low dielectric constant and abrasive for the mechanical chemical polishing of a layer of insulating material based on a polymer with a low dielectric constant.
Type:
Grant
Filed:
April 20, 2000
Date of Patent:
March 26, 2002
Assignee:
Clariant (France) S.A.
Inventors:
Eric Jacquinot, Pascal Letourneau, Maurice Rivoire
Abstract: The present invention relates to a process for preparing trifluorobenzoic acids of the formula
in which R is a straight-chain or branched alkyl radical having 1 to 6 C-atoms, an unsubstituted phenyl radical, a substituted phenyl radical which contains one or two alkyl or alkoxy groups having in each case 1 to 4 C atoms, or an araliphatic radical having 7 to 12 C atoms, which comprises reacting a compound of the formula
in which R1 and R2 are identical or different and are —CN, —COOR3, where R3 is H, Li, Na, K, MgCl, MgBr, MgI, ½Mg, ½Ca or an alkyl radical having 1 to 6 C atoms, or —CONR4R5, where R4 and R5 are identical or different and are an alkyl radical having 1 to 6 C atoms, with at least one organometallic compound of the formula CuR, CuLiR2, MgXR, ZnR3, LiR, AlX2R, AlXR2AlR3 Al2Cl3R3, where R is as defined in formula (1) and X is Cl, Br or I, in the presence of an inert solvent at from −80 to +150° C.
Abstract: The process provides a process for preparing dioxazines by ring closure of a compound of the formula (II)
in which R1 is hydrogen or C1-C8 alkyl in the presence of a ring closure agent, which comprises using as reaction medium an aryl alkyl ether of the formula (III) or a mixture of aryl alkyl ethers of the formula (III)
in which n is an integer from 0 to 2 and R2 is ethyl if n is 0 or is methyl if n is 1 or 2.
Type:
Grant
Filed:
March 24, 2000
Date of Patent:
March 19, 2002
Assignee:
Clariant GmbH
Inventors:
Gert Nagl, Wolfgang Bauer, Peter Kempter