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| Number | Title | Issue Date |
| 6599335 | Copolymers based on ethylene and unsaturated carboxylic esters and their use as mineral oil additives Copolymers based on ethylene and unsaturated carboxylic esters and their use as mineral oil additives. The invention relates to copolymers of low olefins and vinyl esters, containing a) from 85 to 97 mol % of bivalent structural units of the formula 1 --CH | 07/29/2003 |
| 6586506 | Colored wax articles Disclosed are improved solid, colored wax-based article having longer color shelf-life. The invention comprises a synthetic wax, a colorant, and an effective amount of a compound of the formula (1) ##STR1## having symbols defined in the text. The preferre... | 07/01/2003 |
| 6566519 | Preparation of diketopyrrolopyrrole pigments A process for preparing diketopyrrolopyrrole pigments comprises conducting the elementary steps of pigment synthesis (reaction and hydrolysis) in a miniaturized continuous reactor.... | 05/20/2003 |
| 6544932 | Additives for inhibiting gas hydrate formation 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 ##STR1## wherein each R is independently H or C1... | 04/08/2003 |
| 6539954 | Machine dishwashing detergent The invention relates to a liquid to paste machine dishwashing detergent which, in addition to customary machine dishwashing detergent ingredients, comprises a crystalline, layered silicate of the formula aA2 O.bBO.cC2 O3.dD.sub.2 | 04/01/2003 |
| 6541016 | Mixtures of alkylphosphoric esters and use thereof as cosmetic and pharmaceutical emulsifiers This invention relates to monoalkyl phosphoric esters, dialkyl phosphoric esters, and, in small amounts, trialkyl phosphoric esters or salts thereof, which are preferably based on ଲ-branched fatty alcohols, particularly Guerbet alcohol, which are ef... | 04/01/2003 |
| 6516840 | Explosives comprising modified copolymers of polyisobutylene and maleic anhydride as emulsifiers The invention provides an explosive composition consisting of A) an oxygen-donating constituent, which forms a disperse phase, B) an organic constituent, which forms a dispersion phase, and C) at least one emulsifier, wherein the emulsifier includes a copolymer comprisi... | 02/11/2003 |
| 6509401 | Synergistic flame retardant combination of salts of 1-hydroxy-dihydrophosphole oxides and/or 1-hydroxyphospholane oxides and nitrogen compounds for use in polymers The present invention relates to a synergistic flame retardant combination for thermoplastic polymers which comprises as component A a salt of 1-hydroxydihydrophosphole oxides of the formula (Ia) or formula (Ib) and/or 1-hydroxyphospholane oxides of the f... | 01/21/2003 |
| 6509424 | Process for the preparation of ethylene copolymers, and their use as additives to mineral oil and mineral oil distillates The invention relates to a process for the preparation of terpolymers of ethylene and at least 2 further olefinically unsaturated compounds by polymerization in a tubular reactor fitted with at least one side branch, wherein the fresh monomer components, ... | 01/21/2003 |
| 6488724 | Heavy oils having improved properties and an additive therefor The additive described essentially comprises a selected alkoxylated fatty amine or fatty amine derivative and a special metal salt compound, preferably a metal soap. This additive for heavy oils effects a good emulsification or dispersion of asphaltenes a... | 12/03/2002 |
| 6479569 | Safer pigment preparations The invention relates to a pigment preparation comprising an organic pigment and 0.2 to 20% by weight, based on the total weight of the pigment preparation, of an ammonium polyphosphate or of an organophosphorus compound.... | 11/12/2002 |
| 6472527 | Process for the preparation of thiazine-indigo compounds and of new intermediates therefor New heterocyclic compounds are disclosed which are used as intermediates for the preparation of trans-thiazine-indigo pigments which are in part new compounds and can be used for the mass pigmentation of organic substrates. Also disclosed are different en... | 10/29/2002 |
| 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 substituted terephthalic acid in sulphuric acid.... | 10/15/2002 |
| 6458174 | Copolymers, and their use as additives for improving the cold-flow properties of middle distillates Copolymers containing A) from 45 to 54 mol % of divalent structural units of the formula 1 ##STR1## in which a and b=0 or 1 and a+b=1, B) from 35 to 53 mol % of divalent structural units of the formula 2 --H2 C--CHR2 -- (2) and C) from 1 to 2... | 10/01/2002 |
| 6436182 | Process for producing highly concentrated pigment presscakes The invention relates to an advantageous process for producing highly concentrated pigment presscakes which comprises concentrating a pigment suspension on a high-pressure filter press with a pressure of at least 16 bar to a pigment content of at least 50... | 08/20/2002 |
| 6432185 | Red acid dyes for injet printing and paper dyeing The present invention provides water-soluble acid dyes of the formula (1) ##STR1## in which R1 is A--X--COOM, A--X--SO3 M, OR4 or NR5 R6, A is NR7 or S, X is a (C1 -C16)-alkylen... | 08/13/2002 |
| 6420459 | Flame-retarding thermosetting compositions The invention relates to flame-retardant thermoset compositions which comprise, as flame retardant, at least one phosphinic and/or a diphosphinic salt of these.... | 07/16/2002 |
| 6420598 | Process for preparing alkylphosphonic acids The present invention relates to a process for the preparation of alkylphosphonic acids, which comprises reacting phosphorous acid (H3 PO3) with short-chain olefins, and to the use of the products prepared by this process.... | 07/16/2002 |
| 6420461 | Compounds based on polyalkyl-1-oxadiazaspirodecane compounds The present invention relates to novel compounds of the formula (III) ##STR1## in which the substituents are as defined in the description, to a process for their preparation and to mixtures with other compounds. The compounds of the formula (III) are sui... | 07/16/2002 |
| 6413309 | Pigment preparations comprising two or more perylene compounds Pigment preparations comprising a) at least one organic base pigment, b1) at least one perylene pigment dispersant of the formula (I) ##STR1## and b2) at least one acidic, carboxyl- or sulfo-containing perylene pigment dispersant have advantageous rheological... | 07/02/2002 |
| 6409816 | Pigment preparations based on diketopyrrolopyrrole pigments with basic perylene dispersants Pigment preparations comprise a) at least one diketopyrrolopyrrole pigment, and b) at least one perylene pigment dispersant of the formula (I) ##STR1## and have advantageous rheological and coloristic properties.... | 06/25/2002 |
| 6406527 | Water-soluble red acid dyes, their preparation and use The present invention provides water-soluble acid dyes of the formula (I) ##STR1## in which R1, R2 and R3 independently of one another are A--X--COOM, A--X--SO3 M, OR4 or NR5 R6, A is... | 06/18/2002 |
| 6406528 | Use of improved cyan pigments in inkjet inks 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 materi... | 06/18/2002 |
| 6395689 | Terpene ethers and their use The present invention relates to terpene ethers of the general formula (I) ##STR1## 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 f... | 05/28/2002 |
| 6388121 | Process for the production of phosphor organic compounds 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... | 05/14/2002 |
| 6387869 | Granular surfactant composition of improved flowability compromising sodium silicate and linear alkylbenzenesulfonates A granular surfactant composition comprising sodium silicate and linear alkylbenzenesulfonates, wherein the granular surfactant composition has a mean particle diameter of ࣙ50 μm and an ffc value of ࣙ7; a process for the preparation of thi... | 05/14/2002 |
| 6384170 | Hydroxyl-containing ethylene copolymers and fuel oils having an improved lubricating action 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% b... | 05/07/2002 |
| 6375732 | Pigments, the process of their manufacturing and their use 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 lik... | 04/23/2002 |
| 6372709 | Finely divided crystalline sodium disilicate The invention relates to a finely divided crystalline layered sodium disilicate of the formula NaMSix O2x+1.yH.sub.2 O, 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 ... | 04/16/2002 |
| 6369004 | Additives for inhibiting gas hydrate formation 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 ##STR1## wherein each R is independently H or C.sub.1... | 04/09/2002 |
| 6365541 | Alkoxylation catalyst 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 ... | 04/02/2002 |
| 6365071 | Synergistic flame protection agent combination for thermoplastic polymers 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 descripti... | 04/02/2002 |
| 6364918 | Hydroxyl-containing copolymers, and their use for the preparation of fuel oils having improved lubricity 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 carb... | 04/02/2002 |
| 6362358 | Process for the preparation of aromatic phosphonites and aromatic phosphinites and the products made by the process thereof 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... | 03/26/2002 |
| 6362108 | Composition for mechanical chemical polishing of layers in an insulating material based on a polymer with a low dielectric constant 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 particl... | 03/26/2002 |
| 6359131 | Process for preparing dioxazine compounds The process provides a process for preparing dioxazines by ring closure of a compound of the formula (II) ##STR1## in which R1 is hydrogen or C1 -C8 alkyl in the presence of a ring closure agent, which comprises using as r... | 03/19/2002 |
| 6358308 | Finishing treatment of pigments in liquid or supercritical CO2 The invention provides a process for aftertreating organic pigments by causing the ground or unground crude organic pigment and liquid or supercritical carbon dioxide to act on one another.... | 03/19/2002 |
| 6355832 | Processing for preparing salts of dialkylphosphinic acids The invention relates to a process for preparing salts of dialkylphosphinic acids, which comprises a) reacting alkylphosphonous and/or hypophosphorous acid and/or alkali metal salts thereof with olefins in the presence of a free-radical initiator to give ... | 03/12/2002 |
| 6355795 | Triphendioxazine compounds The triphendioxazine compounds of the general formula (I) ##STR1## in which the rings labelled A in positions 1,2-, 2,3- or 3,4- and 8,9-, 9,10- or 10,11- carry a linearly or angularly fused heterocyclic ring containing at least one nitrogen atom which is... | 03/12/2002 |
| 6348562 | Synthetic polyamides A process of increasing the melt processing of synthetic polyamides, in particular pigmented and/or filled synthetic polyamide, by adding thereto an additive having the formula (I) ##STR1## wherein R1 represents a methyl group as such or in the... | 02/19/2002 |
