Patents Represented by Attorney Anthony A. Bisulca
  • Patent number: 7671110
    Abstract: The invention relates to a new method for improved distribution of a substance or mixture of substances in a carrier or substrate or in a mixture of different carriers or substrates. The invention likewise relates to the raw, multicomponent compositions, semi-finished products or end articles obtained by this method and also to the micropowders of the substance or mixture of substances that are used in the method. The invention relates in particular to the application of this method to the incorporation of additives into plastics and to the plastics additives micropowders prepared for that purpose.
    Type: Grant
    Filed: July 17, 2003
    Date of Patent: March 2, 2010
    Assignee: Clariant Produkte (Deutschland) GmbH
    Inventors: Matthias Zāh, Alexander Lichtblau
  • Patent number: 7655715
    Abstract: The invention relates to phosphorus-containing mixtures containing compounds of the formula RO—PO(A)-CH2—CH2—CO2H and??(I) HO—PO(A)-CH2—CH2—CO2R??(II) in which A is C1-C18-alkyl, C6-C18-alkylaryl, C6-C18-aralkyl or aryl, R is (D,E)C?C(B, R5), H B, D, E are identical or different and are each H or C1-C18-alkyl R5 is C1-C20-alkylene, a process for their preparation and their use.
    Type: Grant
    Filed: March 20, 2007
    Date of Patent: February 2, 2010
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Harald Bauer, Mathias Dietz, Ottmar Schacker
  • Patent number: 7655300
    Abstract: The invention is about the preparation of novel highly transparent zeolite-doped polymer and zeolites monolayers. External coating of the zeolite crystals by covalently linked functionalized alkoxysilane derivatives allows for an efficient dispersion of the nano zeolite particles into an organic liquid monomer; the following co-polymerisation process leads to a hard, insoluble and transparent material containing said zeolites. Optical properties such as colour, refractive index, Abbe number or photochromism can be fine tuned by simply changing zeolite loading, while transparency is maintained.
    Type: Grant
    Filed: June 29, 2007
    Date of Patent: February 2, 2010
    Assignees: Clariant International Ltd., Universitat Bern, Optical Additives GmbH
    Inventors: Hans Joachim Metz, Gion Calzaferri, André Devaux, Stephane Suarez, Andreas Kunzmann
  • Patent number: 7655767
    Abstract: The present invention relates to the use of thiazolyl-pyridinium based dyes in optical layers for optical data recording, preferably for optical data recording using a laser with a wavelength up to 450 nm. The invention further relates to a write only read many (WORM) type optical data recording medium capable of recording and reproducing information with radiation of blue laser, which employs a thiazolyl-pyridinium based type dye in the optical layer. The present invention further relates to new thiazolyl-pyridinium based dyes, of formula (V), (VI) or (VIII).
    Type: Grant
    Filed: August 31, 2005
    Date of Patent: February 2, 2010
    Assignee: Clariant Finance (BVI) Limited
    Inventor: Andre Weiss
  • Patent number: 7645336
    Abstract: The invention relates to an azo pigment preparation which is characterized by a content in 4,4?-diaminodicyclohexylmethane, the percentage of the trans,trans-isomer being at least 25%, based on the total amount of 4,4?-diaminodicyclohexylmethane. The azo pigment preparation according to the invention is especially suitable for producing gravure inks having improved optical density, higher luster and no ink show-through in the gravure printing of illustrations.
    Type: Grant
    Filed: November 16, 2006
    Date of Patent: January 12, 2010
    Assignee: Clariant Produkte (Deutschland) GmbH
    Inventor: Juergen Gerold
  • Patent number: 7635785
    Abstract: The invention relates to a process for preparation of salts of dialkylphosphinic acids, which comprises a) reacting hypophosphorous acid and/or its salts with olefins in the presence of a free-radical initiator to give dialkylphosphinic acids and/or their alkali metal salts, in a solvent system, and b) reacting the dialkylphosphinic acids and/or alkali metal dialkylphosphinates obtained in a) with compounds of the metals Mg, Ca, Al, Zn, Ti, Sn, Zr, and/or Fe to give the dialkylphosphinic salts of these metals. The invention also relates to the use of the metal dialkylphosphinic salts obtained by the inventive process, in particular for preparation of flame retardants.
    Type: Grant
    Filed: December 17, 2004
    Date of Patent: December 22, 2009
    Assignee: Clariant Deutschland GmbH
    Inventors: Harald Bauer, Werner Krause, Martin Sicken, Norbert Weferling
  • Patent number: 7632949
    Abstract: The instant invention relates to a process for the preparation of stabilizers for polymers, especially for polyamides, by condensation of isophthalic acic dichloride (IPC) with sterically hindered amines of the type tetraalkylpiperidine. By using organic solvents or mixtures of organic solvents with water and by an optimized combination of temperature and pressure the yield is much higher than by using water alone. The organic load of the waste water could be significantly reduced.
    Type: Grant
    Filed: August 15, 2003
    Date of Patent: December 15, 2009
    Assignee: Clariant Produkte (Deutschland) GmbH
    Inventor: Mathias Mehrer
  • Patent number: 7625621
    Abstract: The present invention provides novel azo dye material based on antipyrine azo structure and metal complexes containing such azo compounds which are suitable for optical recording media. The dyes exert high light-fastnesses properties and excellent recording characteristics. In particular the invention relates to optical layers comprising such dyes, to a method for manufacturing such optical layers and to optical recording media comprising such optical layers.
    Type: Grant
    Filed: July 29, 2005
    Date of Patent: December 1, 2009
    Assignee: Clariant Finance (BVI) Limited
    Inventor: Pascal Steffanut
  • Patent number: 7621967
    Abstract: A dye base sulfate and method of making are described. The dye base sulphate of formula (I) is produced with a residual amine content of less than 2000 ppm, as determined by HPLC, by precipitation of the dye base, made by Friedel-Crafts alkylation, substitution and hydrolysis, as the dye base sulphate is a) taken up in water and subjected to a first steam distillation then filtered and optionally dried at 50 to 180° C., b) the pressed cake is treated with water or the optionally dried dye base sulphate is moistened with water, c) subjected to a further steam distillation and filtration and d) dried at 50 to 180° C.
    Type: Grant
    Filed: October 21, 2003
    Date of Patent: November 24, 2009
    Assignee: Clariant Produkte (Deutschland) GmbH
    Inventors: Eduard Michel, Ruediger Baur, Hans-Tobias Macholdt, Norbert Kohl
  • Patent number: 7622517
    Abstract: The invention relates to a phosphorus-containing flame retardant formulation for cellulose-containing moldings, comprising from 0.1 to 99.9% by weight of a resin of an organic nitrogen compound and from 0.1 to 99.9% by weight of a phosphorus-containing flame retardant.
    Type: Grant
    Filed: April 18, 2008
    Date of Patent: November 24, 2009
    Assignee: Clariant Produkte (Deutschland) GmbH
    Inventors: Harald Bauer, Werner Krause, Martin Sicken, Volker Thewes
  • Patent number: 7611812
    Abstract: Layered double hydroxide salts as charge control agents in electrophotographic toners and developers, in powder coating materials, electret materials and in electrostatic separation processes of chargeable materials, such as polymers, wherein the double hydroxide salt contains monovalent and/or divalent, and also trivalent, metal cations, and also contains one or more organic anions A of the formula (I) X—R—Y??(1) wherein X is hydroxyl, carboxyl, sulfato or sulfo; Y is carboxyl, sulfato or sulfo, and R is an aliphatic, cycloaliphatic, heterocycloaliphatic, olefinic, cycloolefinic. heterocycloolefinic, aromatic, heteroaromatic, araliphatic or heteroaraliphatic radical having a total of at least 8 carbon atoms which can be substituted by one or several substituents from the group hydroxyl, amino, halogen, C1-C22-alkyl, C1-C22-alkoxy, —C1-C22-alkylene-(CO)—O—(CH2CH2O)0-50-alkyl,—C1-C22-alkylene-(CO)—O—(CH2H2O)0-50-haloalkyl, carboxy, sulfo, nitro or cyano.
    Type: Grant
    Filed: July 9, 2003
    Date of Patent: November 3, 2009
    Assignee: Clariant Produkte ( Deutschland) GmbH
    Inventors: Eduard Michel, Ruediger Baur, Hans-Tobias Macholdt
  • Patent number: 7579425
    Abstract: A method for making high softening point linear and cyclic alkylsilicone waxes includes reacting a C30+ alpha olefin wax with a silicone hydride polymer in the presence of a catalyst. The high softening point linear and cyclic alkylsilicone waxes have softening points approximating those of natural waxes and, in consequence, can be used in applications which traditionally employ natural waxes.
    Type: Grant
    Filed: October 17, 2006
    Date of Patent: August 25, 2009
    Assignee: Clariant Life Science Molecules (Florida), Inc.
    Inventors: W. Leonard Terry, Jr., Gary E. LeGrow
  • Patent number: 7569318
    Abstract: A layered double hydroxide salt as a charge control agent in electrophotographic toners and developers, in powder coating materials, electret materials and in electrostatic separation processes of chargeable materials, such as polymers, wherein the double hydroxide salt contains monovalent and/or divalent, and also trivalent, metal cations, and also contains organic anions A of the formulae (I) to (XXX) set forth in the specification.
    Type: Grant
    Filed: July 9, 2003
    Date of Patent: August 4, 2009
    Assignee: Clariant Produkte (Deutschland) GmbH
    Inventors: Eduard Michel, Ruediger Baur, Hans-Tobias Macholdt
  • Patent number: 7524953
    Abstract: The invention relates to novel triphendioxazine pigments of formula (I) wherein X represents hydrogen or chlorine, while R1 represents phenyl substituted by one to five radicals from the group comprising C1-C4-alkyl, halogen, C1-C4-alkoxy, acetylamino, aminocarbonyl, methylaminocarbonyl and C1-C4-alkoxycarbonyl, or phenyl annelated in the 2,3- or 3,4- with a divalent radical of the formula —NH—(CO)m—NR2—, —CR2?CH—CO—NH—, —CR2?N—CO—NH—, —CO—NH—CO—NR2—, —CO—(NH)m—CO— or —O—(CO)m—NH— so as to form a five- or six-membered ring, R2 representing hydrogen, methyl, ethyl or phenyl and m representing 1 or 2.
    Type: Grant
    Filed: January 12, 2005
    Date of Patent: April 28, 2009
    Assignee: Clariant Produkte (Deutschland) GmbH
    Inventors: David Blum, Carsten Plueg, Tanja Reipen
  • Patent number: 7521490
    Abstract: The invention relates to mixtures for producing printing inks, wherein the mixtures comprise a homopolymerizate or copolymerizate of C2-C18-?-olefins, which are produced by means of metallocene catalysis, and of decomposing waxes, which are prepared from polyolefins of longer chain lengths produced by means of metallocene catalysis, and one or more additional additive.
    Type: Grant
    Filed: February 15, 2001
    Date of Patent: April 21, 2009
    Assignee: Clariant Produkte (Deutschland) GmbH
    Inventors: Manfred Schmalzl, Gabriele Sluiter
  • Patent number: 7485745
    Abstract: The invention relates to mixtures composed of dialkylphosphinic esters and of further components, which comprise A) from 98 to 100% by weight of monocarboxy-functionalized dialkylphosphinic esters of the formula (I) in which R1, R2, R3, R4, R5, R6, and R7 are identical or different and, independently of one another, are H, methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, tert-butyl, and/or phenyl, Y is methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, tert-butyl, phenyl, 2-hydroxyethyl, 2,3-dihydroxypropyl, 2-hydroxypropyl, 3-hydroxypropyl, 4-hydroxybutyl, 3-hydroxybutyl, 2-hydroxybutyl, and/or 6-hydroxyhexyl, allyl, and/or glycerol, X is H, Li, Na, K or NH4, or X is defined as for Y, and then X and Y are two identical radicals or two different radicals of the above organic radicals, and B) from 0 to 2% by weight of halogens, where the entirety of the components always amounts to 100% by weight.
    Type: Grant
    Filed: March 6, 2007
    Date of Patent: February 3, 2009
    Assignee: Clariant International Ltd.
    Inventors: Wiebke Maas, Werner Krause, Harald Bauer
  • Patent number: 7482398
    Abstract: The invention relates to an elastic covering material, which comprises, as a flame retardant, a phosphinate salt of the formula (I) and/or a diphosphinate salt of the formula (II) and/or polymers thereof where R1, R2 are the same or different and are each C1-C6-alkyl, linear or branched, and/or aryl; R3 is C1-C10-alkylene, linear or branched, C6-C10-arylene, -alkylarylene or -arylalkylene; M is Mg, Ca, Al, Sb, Sn, Ge, Ti, Zn, Fe, Zr, Ce, Bi, Sr, Mn, Li, Na, K and/or a protonated nitrogen base; m is from 1 to 4; n is from 1 to 4; x is from 1 to 4. The invention relates to processes for producing such elastic covering materials.
    Type: Grant
    Filed: July 13, 2004
    Date of Patent: January 27, 2009
    Assignee: Clariant Produkte (Deutschland) GmbH
    Inventors: Harald Bauer, Hans-Matthias Deger, Werner Krause
  • Patent number: 7459016
    Abstract: A method for the production of a phthalocyanine pigment preparation includes finely distributing a crude phthalocyanine pigment by dry milling, wet milling, salt kneading, acid pasting or acid swelling to give a pre-pigment, the pre-pigment is subjected to a finishing treatment in a mixture of water and an organic solvent at alkaline pH, increased temperature and in the presence of at least one pigment dispersant from the group of phthalocyanine sulphonic acids, phthalocyanine carboxylic acids, phthalocyanine sulphonate salts, phthalocyanine carboxylate salts and phthalocyanine suiphonamides.
    Type: Grant
    Filed: November 27, 2003
    Date of Patent: December 2, 2008
    Assignee: Clariant Produkte (Deutschland) GmbH
    Inventors: Klaus Brychcy, Joachim Weber, Heidrun Mehler
  • Patent number: 7449504
    Abstract: The invention relates to the use of waxes as modifiers for filled plastics.
    Type: Grant
    Filed: April 6, 2005
    Date of Patent: November 11, 2008
    Assignee: Clariant Produkte (Deutschland) GmbH
    Inventors: Eric Richter, Gerd Hohner
  • Patent number: 7446140
    Abstract: The invention relates to diorganylphosphinic salts of the formula (I) and/or diorganyldiphosphinic salts of the formula (II) and/or any of their polymers where R1 and R2 are identical or different and are C1-C6-alkyl, linear or branched, and/or aryl; R3 is C1-C10-alkylene, linear or branched, C6-C10-arylene, -alkylarylene, or -arylalkylene; M is Mg, Ca, Al, Sb, Sn, Ge, Ti, Fe, Zr, Zn, Ce, Bi, Sr, Mn, Li, Na, K, and/or a protonated nitrogen base; m is from 1 to 4; n is from 1 to 4; x is from 1 to 4, wherein the total content of partially water-soluble, ionizable compounds and the water-soluble content of the partially water-soluble, ionizable compounds is from 8200 to 100 ppm, preferably from 7000 to 200 ppm.
    Type: Grant
    Filed: May 11, 2005
    Date of Patent: November 4, 2008
    Assignee: Clariant Produkte (Deutschland) GmbH
    Inventors: Harald Bauer, Werner Krause, Martin Sicken, Norbert Weferling