Patents Represented by Attorney, Agent or Law Firm Richard P. Silverman
  • Patent number: 8349175
    Abstract: The apparatus of the present invention relates to rotary valves which provide simultaneous interconnection of a plurality of asymmetrically disposed stationary adsorption chambers in fluid communication with an upper stator of the rotary valve having a lower rotor which upon indexing in accordance with a predetermined periodic sequence provides a simulating bed moving process. Further, the apparatus relates to such combinations of adsorbent chambers and rotary valves in a manner which is useful for implementing a simulating moving bed process wherein the continuous contacting of fluids and solids occurs in order to affect a separation or a purification process in a substantially plot area than previous SMB systems using turntable arrangements of adsorbent chambers.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: January 8, 2013
    Assignee: Orochem Technologies, Inc.
    Inventor: Anil R. Oroskar
  • Patent number: 7605224
    Abstract: Disclosed are copolymers made of alkylene oxides and glycidyl ethers according to formula (I) in which R1 is hydrogen or a C1-C4-alkyl radical, R2 and R4 are an alkyl or aryl radical having 1 to 30 carbon atoms, and R3 is an alkyl or aryl radical having 1 to 50 carbon atoms, which may also contain heteroatoms. A is an alkylene unit having 2 to 6 carbon atoms. In formula (1), x is a number from 0 to 10, y is a number from 0 to 10, n is a number from 0 to 100, k is a number from 1 to 100, R5 is an acid group or hydrogen, and m is a number from 1 to 500, with the proviso that (y+n) must be at least 1.
    Type: Grant
    Filed: May 14, 2008
    Date of Patent: October 20, 2009
    Assignee: Clariant Produkte (Deutschland) GmbH
    Inventors: Uwe Falk, Hendrik Ahrens, Klaus Poellmann, Martin Glos, Eckart Kraemer
  • Patent number: 7569615
    Abstract: Disclosed is the use of alkoxylated dendrimers for breaking oil/water emulsions. The alkoxylated dendrimers have a molecular weight of from 2400 to 100 000 g/mol and have been alkoxylated with C2-C4-alkylene oxide groups or a mixture of such alkylene oxide groups such that the alkoxylated dendrimer has a degree of alkoxylation of from 1 to 100 alkylene oxide units per free OH group. The alkoxylated dendrimers are added to the oil/water emulsions in amounts of from 0.0001 to 5% by weight, based on the oil content of the emulsion to be demulsified.
    Type: Grant
    Filed: June 19, 2004
    Date of Patent: August 4, 2009
    Assignee: Clariant Produkte (Deutschland) GmbH
    Inventors: Dirk Leinweber, Michael Feustel, Elisabeth Wasmund, Heidi Rausch
  • Patent number: 7566763
    Abstract: The invention provides dispersion concentrates comprising at least one polymer obtainable by free-radical copolymerization of A) acryloyldimethyltauric acid and/or acryloyldimethyltaurates, B) optionally one or more further olefinically unsaturated, noncationic comonomers, C) optionally one or more olefinically unsaturated, cationic comonomers, D) optionally one or more silicon-containing component(s), E) optionally one or more fluorine-containing component(s), F) optionally one or more macromonomers, G) where the copolymerization optionally takes place in the presence of at least one polymeric additive, with the proviso that the component A) is copolymerized with at least one component chosen from the group D) to G).
    Type: Grant
    Filed: March 21, 2003
    Date of Patent: July 28, 2009
    Assignee: Clariant Produkte (Deutschland) GmbH
    Inventors: Matthias Löffler, Roman Morschhäuser
  • Patent number: 7563291
    Abstract: The present invention relates to the preparation of ?-(dimethylisopropenylbenzylurethane) polyalkylene glycols with ?-alkoxy or ?-dihydroxy groups and to the use thereof as hydrolysis-stable macromonomers for the dispersion and crosslinking of polymers in which, A is C2-C4-alkylene, m is an integer from 5 to 900, and R is C1-C20-alkyl, C6-C18-aryl or a radical according to formula 2a, 2b, 2c, 3a, 3b or 3c which is bonded to the terminal oxygen atom of the alkoxy group (A-O) in formula 1 via the valence denoted by *, and in which A is not exclusively C3- or C4-alkylene.
    Type: Grant
    Filed: May 18, 2005
    Date of Patent: July 21, 2009
    Assignee: Clariant Produkte (Deutschland) GmbH
    Inventors: Bettina Siggelkow, Dirk Leinweber, Werner Reimann, Ulrike Neuhaus, Renate Braun
  • Patent number: 7553984
    Abstract: A method for the flotation of sulfide ores is disclosed. The method comprises contacting the sulfide ores with a composition comprising at least one compound of the formula where R1, R2 and R3 independently of one another are alkyl groups having 1 to 18 carbon atoms, alkenyl groups having 2 to 18 carbon atoms, aryl groups having 6 to 10 carbon atoms, or alkylaryl groups having 7 to 10 carbon atoms. Also disclosed is the process for preparing the above compound.
    Type: Grant
    Filed: July 21, 2006
    Date of Patent: June 30, 2009
    Assignee: Clariant Produkte (Deutschland) GmbH
    Inventors: Tobias Rau, Heinrich Hesse, Wolfgang Buch, Jaime Gomez, Miguel Angel Arends, Norbert Ernstorfer
  • Patent number: 7550019
    Abstract: The invention therefore provides an additive for improving the cold flow performance of middle distillates, comprising I) at least one paraffin dispersant which is a derivative of a fatty amine, II) at least one block copolymer of the structure (AB)nA or (AB)m, where A represents blocks which are composed of olefinically unsaturated, aromatic monomers, and B represents blocks which are composed of structural elements based on polyolefins and are capable of cocrystallizing with the paraffins precipitating out of the middle distillate in the course of cooling, and n is a number in the range from 1 to 10 and m is a number in the range from 2 to 10.
    Type: Grant
    Filed: July 21, 2004
    Date of Patent: June 23, 2009
    Assignee: Clariant Produkte (Deutschland) GmbH
    Inventors: Matthias Krull, Heinz Hoffmann, Klaus Redlich
  • Patent number: 7544652
    Abstract: Liquid washing and cleaning compositions are claimed, which comprise one or more anionic surfactants from the group of the alkylbenzenesulfonates, olefinsulfonates, alkylsulfonates, alkyl ether sulfonates together with sec. alkanesulfonate, and one or more components from the group of the soaps, ether carboxylates, betaines and a nonionic surfactant, and, as a dye fixative, homo- and copolymers of diallyldimethylammonium chloride or the reaction products of cyanamides with aldehydes and ammonium salts or cyanamides with aldehydes and monoamines or monoamines and/or polyamines with epichlorohydrin or polyamines with cyanamides and amidosulfuric acid.
    Type: Grant
    Filed: October 15, 2005
    Date of Patent: June 9, 2009
    Assignee: Clariant Produkts (Deutschland) GmbH
    Inventor: Frank-Peter Lang
  • Patent number: 7544817
    Abstract: Process for the preparation of a 2-(n-alkyl)-3-(4-hydroxybenzoyl)benzofuran of formula (I) in which R represents a linear or branched alkyl radical including from 1 to 5 carbon atoms and R1 represents a linear or branched alkyl radical including from 1 to 3 carbon atoms, a linear or branched alkoxy radical including from 1 to 3 carbon atoms, a halogen atom or a nitro radical, and intermediates.
    Type: Grant
    Filed: December 15, 2004
    Date of Patent: June 9, 2009
    Assignee: Clariant (France)
    Inventors: Alain Schouteeten, François Bleger, Françoise Mordacq, Jérôme Piron
  • Patent number: 7541326
    Abstract: This invention relates to liquid washing and cleaning agents containing a secondary alkane sulphonate, soap and a non-ionic surfactant as a surfactant and homo and/or copolymers of diallyl-dimethyl-ammonium chloride or reaction products of cyanamides comprising aldehydes and ammonium salts or monoamines and/or polyamines with epichlorhydrine, or polyamines with cyanamides and amido sulphuric acid as color fixing agents.
    Type: Grant
    Filed: September 6, 2005
    Date of Patent: June 2, 2009
    Assignee: Clariant Produkte (Deutschland) GmbH
    Inventor: Frank-Peter Lang
  • Patent number: 7541327
    Abstract: The invention relates to liquid washing agents and detergents containing, as surfactants, at least one of the constituents of linear alkyl benzene sulfonate, olefin sulfonate, alkyl sulfate, and ether carboxylate and/or betaine and a non-ionic surfactant, and as color fixing agents, homopolymers or copolymers of diallyl-dimethyl-ammonium chloride or the reaction products of cyanamides with aldehydes and ammonium salts, or cyanamides with aldehydes and monoamines, or monoamines and/or polyamines with epichlorhydrine, or polyamines with cyanamides and amidosulphuric acid.
    Type: Grant
    Filed: October 18, 2005
    Date of Patent: June 2, 2009
    Assignee: Clariant Produkte (Deutschland) GmbH
    Inventor: Frank-Peter Lang
  • Patent number: 7541324
    Abstract: What are claimed are synergistically active bleach activator mixtures consisting of a) a hydroxybenzoic acid derivative of the formula 1 in which R is C8-C11-alkyl, and b) tetraacetylethylenediamine and/or 1,5-diacetyl-2,4-dioxo-1,3,5-hexahydrotriazine.
    Type: Grant
    Filed: September 3, 2005
    Date of Patent: June 2, 2009
    Assignee: Clariant Produkte (Deutschland) GmbH
    Inventors: Gerd Reinhardt, Georg Borchers
  • Patent number: 7504372
    Abstract: What are claimed are synergistically active bleach mixtures consisting of a) a compound of the formula (1) in which n is 3, 4 or 5, and b) tetraacetylethylenediamine and/or 1,5-diacetyl-2,4-dioxo-1,3,5-hexa-hydrotriazine.
    Type: Grant
    Filed: September 3, 2005
    Date of Patent: March 17, 2009
    Assignee: Clariant Produkte (Deutschland) GmbH
    Inventors: Gerd Reinhardt, Georg Borchers
  • Patent number: 7500996
    Abstract: The present invention provides an additive comprising A) a copolymer of ethylene and 8-21 mol % of at least one acrylic or vinyl ester having a C1-C18-alkyl radical and B) a comb polymer containing structural units of B1) at least one olefin as monomer 1, which bears at least one C8-C18-alkyl radical on the olefinic double bond, and B2) at least one ethylenically unsaturated dicarboxylic acid as monomer 2, which bears at least one C8-C16-alkyl radical bonded via an amide and/or imide moiety, wherein the sum Q Q = ? i ? w 1 ? i · n 1 ? i + ? j ? w 2 ? j · n 2 ? j of the molar averages of the carbon chain length distributions in the alkyl radicals of monomer 1 on the one hand and the alkyl radicals of the amide and/or imide groups of monomer 2 on the other hand is from 23 to 27, where w1 is the molar proportion of the individual chain lengths in the alkyl radicals of monomer 1, w2 is the molar proportion of the individual chain lengths in the alkyl radicals of the am
    Type: Grant
    Filed: October 25, 2004
    Date of Patent: March 10, 2009
    Assignee: Clariant International Ltd.
    Inventors: Matthias Krull, Bettina Siggelkow, Martina Hess
  • Patent number: 7476264
    Abstract: The invention provides a fuel oil composition comprising a fuel oil of animal or vegetable origin and an additive comprising A) at least one copolymer of ethylene and 8-21 mol % of at least one acrylic or vinyl ester having a C1-C18-alkyl radical and B) at least one comb polymer containing structural units having C8-C16-alkyl radicals, the structural units being selected from C8-C16-alkyl (meth)acrylates, C8-C16-alkyl vinyl esters, C8-C16-alkyl vinyl ethers, C8-C16-alkyl (meth)acrylamides, C8-C16-alkyl allyl ethers and C8-C16-diketenes, where the sum R R = m 1 · ? i ? w 1 ? i · n 1 ? i + m 2 · ? j ? w 2 ? j · n 2 ? j + … + m g · ? p ? w gp · n gp is the molar average of the carbon chain length distributions in the alkyl radicals of the monomers B) is from 11.0 to 14.0, where m1, m2, . . . mg are the molar fractions of the abovementioned monomers B) in the polymer and the sum of the molar fractions m1 to mg=1, w1i, w1j . . . w2i, w2j . .
    Type: Grant
    Filed: October 25, 2004
    Date of Patent: January 13, 2009
    Assignee: Lariant Produkte (Deutshland) GmbH
    Inventor: Matthias Krull
  • Patent number: 7473284
    Abstract: The invention provides a fuel oil composition F) comprising F1) a fuel oil of mineral origin and F2) a fuel oil of vegetable and/or animal origin, and, as a cold additive, the constituents A) at least one copolymer composed of ethylene and 8-21 mol % of at least one acrylic or vinyl ester having a C1-C18-alkyl radical and B) at least one comb polymer containing structural units having C8-C16-alkyl radicals, the structural units being selected from C8-C16-alkyl (meth)acrylates, C8-C16-alkyl vinyl esters, C8-C16-alkyl vinyl ethers, C8-C16-alkyl(meth)acrylamides, C8-C16-alkyl allyl ethers and C8-C16-diketenes, where the sum R R = m 1 · ? i ? w 1 ? i · n 1 ? i + m 2 · ? j ? w 2 ? j · n 2 ? j + … + m g · ? p ? w gp · n gp of the molar averages of the carbon chain length distributions in the alkyl radicals of the monomers B) is from 11.0 to 14.0, where m1, m2, . . .
    Type: Grant
    Filed: October 25, 2004
    Date of Patent: January 6, 2009
    Assignee: Clariant Produkte (Deutschland) GmbH
    Inventor: Matthias Krull
  • Patent number: 7462660
    Abstract: The invention relates to copolymers of formula (I) wherein R1 is hydrogen, a C1-C5-alkyl radical or C2-C5-alkenyl radical which can also contain heteroatoms, an acid group or an aliphatic or aromatic group comprising 1-50 carbon atoms, including an acid group, R2 and R3 independently represent hydrogen, methyl and/or ethyl, n ranges from 0-100, and m ranges from 3 to 30, and k ranges from 1-200, and A is hydrogen, an acid group, a C1-C5-alkyl radical or a C2-C8-alkenyl radical which can also contain heteroatoms, an aliphatic or aromatic group comprising 1-50 carbon atoms, including an acid group, or a copolymer unit of formula (II), wherein R4 is hydrogen, a C1-C5-alkyl radical or a C2-C5-alkenyl radical which can also contain heteroatoms, an acid group or an aliphatic or aromatic group comprising 1-50 carbon atoms, including an acid group, R5 is hydrogen, methyl and/or ethyl, x ranges from 0 to 100, and y ranges from 3-30, wherein, if A is formula (2), R1 represents hydrogen or an acid group.
    Type: Grant
    Filed: October 30, 2003
    Date of Patent: December 9, 2008
    Assignee: Lariant Produkte (Deutschland) GmbH
    Inventors: Klaus Poellmann, Martin Glos, Anton Strasser, Eckart Kraemer
  • Patent number: 7449508
    Abstract: The invention relates to a novel flame retardant and stabilizer combined for thermoplastic polymers, which comprises, as component A, from 20 to 80% by weight of a phosphinic salt of the formula (I) and/or of a diphosphinic salt of the formula (II), and/or polymers of these, where R1, 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, Zn, Fe, Zr, Ce, Bi, Sr, Mn, Li, Na, K, and/or a protonated nitrogen base; m is 1 to 4; n is 1 to 4; x is 1 to 4, and comprises, as component B, from 10 to 75% by weight of a nitrogen-containing synergist, and, as component C, from 10 to 75% by weight of a phosphorus/nitrogen flame retardant, the entirety of the components always being 100% by weight.
    Type: Grant
    Filed: February 25, 2005
    Date of Patent: November 11, 2008
    Assignee: Clariant Produkte (Deutschland) GmbH
    Inventors: Christian Steib, Sebastian Hoerold
  • Patent number: 7435271
    Abstract: The invention relates to additives for improving cold-flow and lubricating properties of fuel oils, comprising A) 5-95% by weight of at least one oil-soluble amphiphile of the formula ?in which R1 is an alkyl, alkenyl, hydroxyalkyl or aromatic radical having 1 to 50 carbon atoms, X is NH, NR3, O or S, y is 1, 2, 3 or 4, R2 is hydrogen or an alkyl radical carrying hydroxyl groups and having 2 to 10 carbon atoms and R3 is an alkyl radical carrying nitrogen and/or hydroxyl groups and having 2 to 10 carbon atoms or C1-C20-alkyl, and B) 5 to 95% by weight of a terpolymer containing from 10 to 35 mol % of structural units derived from the vinyl ester of a carboxylic acid having 2 to 4 carbon atoms, from 1 to 15 mol % of structural units derived from the vinyl ester of a neocarboxylic acid having 8 to 15 carbon atoms, and structural units of ethylene to 100 mol %, having a melt viscosity, measured at 140° C., of from 20 to 10,000 mPas.
    Type: Grant
    Filed: September 22, 2003
    Date of Patent: October 14, 2008
    Assignee: Clariant Produkte (Deutschland) GmbH
    Inventors: Matthias Krull, Werner Reimann
  • Patent number: RE40758
    Abstract: The invention relates to low-temperature-stabilized additives for fuel oils having a sulfur content of up 0.05% by weight, comprising fatty acid mixtures of A1) from 1 to 99% by weight of at least one saturated mono- or dicarboxylic acid having from 6 to 50 carbon atoms, A2) from 1 to 99% by weight of at least one unsaturated mono- or dicarboxylic acid having from 6 to 50 carbon atoms, and B) at least one polar nitrogen-containing compound which is effective as paraffin dispersant in middle distillates, in an amount of from 0.01 to 90% by weight, based on the total weight of A1), A2) and B); and to the use of said mixtures for improving the lubrication properties of low-sulfur middle distillates.
    Type: Grant
    Filed: September 10, 2004
    Date of Patent: June 23, 2009
    Assignee: Clariant Produkte (Deutschland) GmbH
    Inventors: Matthias Krull, Werner Reimann