Patents by Inventor Michael Feustel

Michael Feustel has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7297823
    Abstract: The invention relates to the use of polymers which contain between 1 and 99 mol-% structural units of formula 1, wherein R1 represents hydrogen or C1-C6 alkyl, R2 represents C1-C24-alkyl, C2-C24-alkylene or a C6-C18-aryl radical, which can be substituted with a C1-C12-alkyl group, A represents identical or different C2-C4 alkylene radicals and, x, represents whole number from 2-40 in quantities from 0.01-2 wt-%, in quantities from 0.01 to 2 wt-%, in relation to the aqueous phase. The polymers can be used as gas hydrate inhibitors.
    Type: Grant
    Filed: November 6, 2001
    Date of Patent: November 20, 2007
    Assignee: Clariant Produkte (Deutschland) GmbH
    Inventors: Uwe Dahlmann, Michael Feustel, Christoph Kayser, Roman Morschhaeuser
  • Publication number: 20070221539
    Abstract: The invention thus provides crude oils and products which have been produced therefrom and comprise distillation residues, comprising at least one alkylphenol-aldehyde resin having a repeat structural unit of the formula where R1 is a branched alkyl or alkenyl radical which has from 10 to 40 carbon atoms and bears at least one carboxyl, carboxylate and/or ester group, R2 is hydrogen or R1 R3 is hydrogen or an alkoxy group of the formula -(A-O)m—H, A is a C2- to C4-alkylene group, m is from 1 to 100, R4 is hydrogen, a C1- to C11-alkyl radical or a carboxyl group, R5 is C1-C200-alkyl or -alkenyl, O—R6 or O—C(O)—R6, R6 is C1-C200-alkyl or -alkenyl, n is from 1 to 100 and k is 1 or 2, the use of the alkylphenol-aldehyde resin for splitting emulsions of water and crude oils or products derived therefrom, the use of the alkylphenol-aldehyde resin for improving the cold flowability of crude oils and products derived therefrom, and the use of the alkylphenol-aldehyde resin as an asphaltene dispersant in c
    Type: Application
    Filed: September 22, 2006
    Publication date: September 27, 2007
    Inventors: Carsten Cohrs, Matthias Krull, Michael Feustel, Heidi Rausch
  • Patent number: 7253138
    Abstract: The invention provides the compounds of the formula (1) where R1 is C1- to C22-alkyl, C2- to C22-alkenyl, C6- to C30-aryl or C7- to C30-alkylaryl, —CHR5—COO? or —O?, R2 is hydrogen —CH3 or —OH, R3, R4 are each independently C1- to C22-alkyl, C2- to C22-alkenyl, C6- to C30-aryl or C7- to C30-alkylaryl, R5 is hydrogen, C1- to C22-alkyl or C2- to C22-alkenyl, A is a C2- to C4-alkylene group, D is a C2- to C5-alkylene group which may contain one or two heteroatoms, m is a number from 0 to 30, n is a number from 1 to 18, and also their use as corrosion and gas hydrate inhibitors.
    Type: Grant
    Filed: February 20, 2004
    Date of Patent: August 7, 2007
    Assignee: Clariant Produkte (Deutschland) GmbH
    Inventors: Uwe Dahlmann, Michael Feustel
  • Publication number: 20070173672
    Abstract: The invention provides the use of compounds of the formula (1) where R1, R2 are each independently C1- to C22-alkyl, C2- to C22-alkenyl, C6- to C30-aryl or C7- to C30-alkylaryl, R3 is C1- to C22-alkyl, C2- to C22-alkenyl, C6- to C30-aryl or C7- to C30-alkylaryl, —CHR5—COO? or —O?, R4 is M, hydrogen or an organic radical which optionally contains heteroatoms and has from 1 to 100 carbon atoms, B is an optionally substituted C1- to C30-alkylene group, D is an organic radical which optionally contains heteroatoms and has from 1 to 600 carbon atoms, X, Y are each independently O or NR6, R5, R6 are each independently hydrogen, C1- to C22-alkyl, C2- to C22-alkenyl, C6- to C30-aryl or C7- to C30-alkylaryl, and M is a cation as gas hydrate inhibitors.
    Type: Application
    Filed: March 28, 2007
    Publication date: July 26, 2007
    Inventors: Uwe Dahlmann, Michael Feustel
  • Publication number: 20070129256
    Abstract: The present invention relates to an additive, and its use for inhibiting nucleation, growth and agglomeration of gas hydrates by adding an effective amount of an inhibitor to a multiphasic mixture which tends to hydrate formation and consists of water, gas and optionally condensate, or to a drilling fluid which tends to form gas hydrates. Said inhibitor comprising dialkoxylated quaternary ammonium compounds of the formula 1 where R1, R2 are each independently radicals of the formulae -(A-O)n—(C)—CO—O—R5, R3 is C1- to C30-alkyl or C2- to C30-alkenyl, R4 is an organic radical which optionally contains heteroatoms and has from 1 to 100 carbon atoms, R5 is an alkyl or an alkenyl, n is a number from 1 to 20, A is an alkylene group, B is an alkylene group, C is a C1- to C6-alkylene group and X is an anion, are used as gas hydrate inhibitors.
    Type: Application
    Filed: January 26, 2007
    Publication date: June 7, 2007
    Inventors: Uwe Dahlmann, Michael Feustel
  • Patent number: 7214814
    Abstract: The invention provides the use of compounds of the formula (1) where R1, R2 are each independently C1- to C22-alkyl, C2- to C22-alkenyl, C6- to C30-aryl or C7- to C30-alkylaryl, R3 is C1- to C22-alkyl, C2- to C22-alkenyl, C6- to C30-aryl or C7- to C30-alkylaryl, —CHR5—COO? or —O?, R4 is M, hydrogen or an organic radical which optionally contains heteroatoms and has from 1 to 100 carbon atoms, B is an optionally substituted C1- to C30-alkylene group, D is an organic radical which optionally contains heteroatoms and has from 1 to 600 carbon atoms, X, Y are each independently O or NR6, R5, R6 are each independently hydrogen, C1- to C22-alkyl, C2- to C22-alkenyl, C6- to C30-aryl or C7- to C30-alkylaryl, and M is a cation as gas hydrate inhibitors.
    Type: Grant
    Filed: February 20, 2004
    Date of Patent: May 8, 2007
    Assignee: Clariant Produkte (Deutschland) GmbH
    Inventors: Uwe Dahlmann, Michael Feustel
  • Publication number: 20070100002
    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: Application
    Filed: June 19, 2004
    Publication date: May 3, 2007
    Inventors: Dirk Leinweber, Michael Feustel, Elisabeth Wasmund, Heidi Rausch
  • Patent number: 7183240
    Abstract: The present invention relates to an additive, and its use for inhibiting nucleation, growth and agglomeration of gas hydrates by adding an effective amount of an inhibitor to a multiphasic mixture which tends to hydrate formation and consists of water, gas and optionally condensate, or to a drilling fluid which tends to form gas hydrates. Said inhibitor comprising dialkoxylated quaternary ammonium compounds of the formula 1 where R1, R2 are each independently radicals of the formulae—(B)—(O—A)n—O—CO—R5 or —(A—O)n—(C)—CO—O—R5, R3 is C1- to C30-alkyl or C2- to C30-alkenyl, R4 is an organic radical which optionally contains heteroatoms and has from 1 to 100 carbon atoms, R5 is an alkyl or an alkenyl, n is a number from 1 to 20, A is an alkylene group, B is an alkylene group, C is a C1- to C6-alkylene group and X is an anion, are used as gas hydrate inhibitors.
    Type: Grant
    Filed: June 27, 2002
    Date of Patent: February 27, 2007
    Assignee: Clariant Produkte (Deutschland) GmbH
    Inventors: Uwe Dahlmann, Michael Feustel
  • Patent number: 7160507
    Abstract: The invention relates to an additive and to a method of corrosion inhibition on devices for the recovery and transportation of hydrocarbons in crude oil recovery and processing by adding an effective amount of an inhibitor. The inhibitor comprises an alkoxylated quaternary compounds of the formula 1 where R1, R2 are independently groups of the formula —(B)—(O—A)n—O—CO—R5 or —(A—O)n—(C)—CO—O—R5, R3 is C1— to C30-alkyl or C2— to C30-alkenyl, R4 is an organic radical with 1 to 100 carbon atoms optionally containing heteroatoms, R5 is an alkyl or an alkenyl, n is a number from 1 to 20, A is an alkylene group, B is an alkylene group, C is a C1— to C6-alkylene group and X is an anion, used as corrosion inhibitors.
    Type: Grant
    Filed: June 27, 2002
    Date of Patent: January 9, 2007
    Assignee: Clariant GmbH
    Inventors: Uwe Dahlmann, Michael Feustel
  • Patent number: 7008561
    Abstract: The present invention relates to compounds of formula (1) and the salts thereof which correspond to formula (2). In the formulae, A is C2- to C4-alkylene, x is a number from 1 to 100, y is a number from 1 to 4, and R is a cation. The compound of formula (1) and/or formula (2) forms a persistent film on metal surfaces, particularly on metal surfaces under stress in metal working and in the operation of crude oil and natural gas processing.
    Type: Grant
    Filed: April 30, 2002
    Date of Patent: March 7, 2006
    Assignee: Clariant GmbH
    Inventors: Uwe Dahlmann, Michael Feustel, Rainer Kupfer
  • Publication number: 20050203193
    Abstract: The invention relates to polymers that can be obtained by: A) reacting an epoxidized ester, which is selected from one or more unsaturated fatty acids having 8 to 26 C atoms and a polyol having 2 to 6 OH groups, with a monoamine, diamine or polyamine; B) alkoxylating the polyamine obtained hereby with a C2 to C4 alkylene oxide in molar excess so that the average degree of alkoxylation per OH group ranges from 1 to 100. The polymers have a numerical average molecular weight ranging from 500 to 100,000 g/mol. The invention also relates to the use of these polymers in quantities ranging from 0.0001 to 5% by weight with regard to the oil as demulsifiers for oil-in-water emulsions.
    Type: Application
    Filed: May 16, 2003
    Publication date: September 15, 2005
    Applicant: CLARIANT GmbH
    Inventors: Dirk Leinweber, Michael Feustel, Heidi Grundner, Hildegard Freundl
  • Patent number: 6894007
    Abstract: The invention relates to the use of compounds of the formula (1) in which R1 is C1- to C24-alkyl, C2- to C24-alkenyl or a C6- to C18-aryl radical which may be substituted by a C1- to C24-alkyl group, R2, R3 independently of one another, are hydrogen, C1- to C18-alkyl, or C8- to C7-cycloalkyl, or R2 and R3, including the nitrogen atom to which they are bonded, form a ring of 4 to 8 ring atoms, in which oxygen or nitrogen atoms may also be present in addition to carbon. A are identical or different C2- to C4-alkylene radicals, B is C1- to C7-alkylene, and n is an integer from 1-40, as gas hydrate inhibitors.
    Type: Grant
    Filed: March 20, 2002
    Date of Patent: May 17, 2005
    Assignee: Clariant GmbH
    Inventors: Peter Klug, Uwe Dahlmann, Michael Feustel
  • Publication number: 20050101495
    Abstract: Corrosion and gas hydrate inhibitors having improved water solubility and increased biodegradability The invention thus provides the use of compounds of the formula (1) where R1, R2 are each independently C1- to C22-alkyl, C2- to C22-alkenyl, C6- to C30-aryl or C7- to C30-alkylaryl, R3 is C1- to C22-alkyl, C2- to C22-alkenyl, C6- to C30-aryl or C7- to C30-alkylaryl, —CHR5—COO— or —O?, R4 is M, hydrogen or an organic radical which optionally contains heteroatoms and has from 1 to 100 carbon atoms, B is an optionally substituted C1- to C10-alkylene group, D is an ethylene group substituted by an organic radical having from 1 to 600 carbon atoms, X, Y are each independently O or NR6, R5, R6 are each independently hydrogen, C1- to C22-alkyl, C2- to C22-alkenyl, C6- to C30-aryl or C7- to C30-alkylaryl, and M is a cation as corrosion and gas hydrate inhibitors, and also the compounds of formula 1.
    Type: Application
    Filed: February 20, 2004
    Publication date: May 12, 2005
    Inventors: Uwe Dahlmann, Michael Feustel
  • Patent number: 6821933
    Abstract: The invention relates to additives for improving the flowability of mineral oils, containing: A) 1-40 wt. % of at least one copolymer, which is oil-soluble and improves the cold flow properties of mineral oil, selected from A1) copolymers consisting of 80 to 96.5 mol % ethylene and 3.5-20 mol % vinyl esters of carboxylic acids with 1-20 C atoms and/or (meth)acrylic acid esters of alcohols with 1-8 C atoms, and A2) homopolymers or copolymers of esters, containing C10-C30 alkyl radicals, of ethylenically unsaturated carboxylic acids with up to 20 mol % of other olefinically unsaturated compounds, B) 20-80 wt. % of at least one poly-alpha-olefin with a molecular weight of 250-5000, derived from monoolefins with 3-5 C atoms, and C) 5-70 wt.
    Type: Grant
    Filed: December 13, 2002
    Date of Patent: November 23, 2004
    Assignee: Clariant International Ltd.
    Inventors: Michael Feustel, Matthias Krull, Hans-Jörg Oschmann
  • Patent number: 6803492
    Abstract: The invention relates to an additive for improving the cold-flow properties of crude and distillate oils, where the additive is obtainable by extraction of crude oil with supercritical gas.
    Type: Grant
    Filed: March 20, 2002
    Date of Patent: October 12, 2004
    Assignee: Clariant International Ltd.
    Inventors: Michael Feustel, Hans-Jörg Oschmann, Utha Kentschke
  • Publication number: 20040169161
    Abstract: The invention relates to an additive, the use thereof and a method for inhibiting corrosion on conveyors and transport devices for hydrocarbons in crude oil transport and processing, whereby an effective amount of an inhibitor is added, containing doubly alkoxylated quaternary compounds. Compounds of formula (1), where R1, R2 independently=groups of formula —(B)—(O-A)n-O—CO—R5 (2), or -(A-O)n—(C)—CO—O—R5 (3), R3=C1 to C30 alkyl or C2 to C30 alkenyl, R4=an organic group with 1 to 100 carbon atoms optionally containing heteroatoms, R5=C1 to C30 alkyl or C2 to C30 alkenyl; n=1 to 20, A=a C2 to C4 alkylene group, B=a C1 to C10 alkylene group, C=a C1 to C6 alkylene group and X=an anion, are used as corrosion inhibitors.
    Type: Application
    Filed: January 13, 2004
    Publication date: September 2, 2004
    Inventors: Uwe Dahlmann, Michael Feustel
  • Publication number: 20040167040
    Abstract: The invention provides the compounds of the formula (1) 1
    Type: Application
    Filed: February 20, 2004
    Publication date: August 26, 2004
    Applicant: Clariant GmbH
    Inventors: Uwe Dahlmann, Michael Feustel
  • Publication number: 20040163307
    Abstract: The invention provides the use of compounds of the formula (1) 1
    Type: Application
    Filed: February 20, 2004
    Publication date: August 26, 2004
    Applicant: Clariant GmbH
    Inventors: Uwe Dahlmann, Michael Feustel
  • Publication number: 20040163306
    Abstract: The invention provides the use of compounds of the formula (1) 1
    Type: Application
    Filed: February 20, 2004
    Publication date: August 26, 2004
    Applicant: Clariant GmbH
    Inventors: Uwe Dahlmann, Michael Feustel
  • Publication number: 20040164278
    Abstract: Corrosion and gas hydrate inhibitors having improved water solubility and increased biodegradability
    Type: Application
    Filed: February 20, 2004
    Publication date: August 26, 2004
    Applicant: Clariant GmbH
    Inventors: Uwe Dahlmann, Michael Feustel