Patents by Inventor Andreas Schottstedt

Andreas Schottstedt 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: 9902921
    Abstract: The invention relates to a bleach catalyst granules containing a metal-containing bleach catalyst, which comprises at least one ligand selected from the group comprising di- or trimethyltriazcyclononanes or derivatives therefrom, and a homo- or copolymer polycarboxylate, salts thereof or partially neutralized having a pH-value of between 3 and 9. Said granules are produced in an anhydrous granulation process, in particular by compacting, the treatment temperature being maintained at below 100° C.
    Type: Grant
    Filed: May 9, 2014
    Date of Patent: February 27, 2018
    Assignee: WEYLCHEM WIESBADEN GMBH
    Inventors: Gerd Reinhardt, Michael Best, Miriam Ladwig, Andreas Schottstedt, Mathias Groeschen, Sven Gebhard
  • Patent number: 9902922
    Abstract: The invention relates to a bleaching-agent co-granule containing a bleach activator, a metal-containing bleach catalyst comprising at least one ligand from the group consisting of di- or trimethyltriazacyclononane and derivatives of these, and a homo- or copolymeric polycarboxylate or its salts or partial neutralizates having a pH in the range from 3 to 9. The bleaching-agent co-granule is obtained in an anhydrous granulating process, preferably by compaction at a temperature below 100° C. The invention also relates to the method of using the bleaching-agent co-granule in dishwasher detergents and to a detergent comprising said bleaching-agent co-granule.
    Type: Grant
    Filed: May 9, 2014
    Date of Patent: February 27, 2018
    Assignee: WEYLCHEM WIESBADEN GMBH
    Inventors: Gerd Reinhardt, Michael Best, Miriam Ladwig, Andreas Schottstedt, Mathias Groeschen, Sven Gebhard
  • Publication number: 20170275420
    Abstract: Disclosed are polyesters comprising structural units of formula Ia and end groups of formulae II and III or end groups of formulae II and IV or end groups of formulae II, III and IV or comprising structural units of formulae Ia and Ib and end groups of formulae II and III or end groups of formulae II and IV or end groups of formulae II, III and IV wherein R is C1-C4-alkyl, M is hydrogen or a mono- or divalent cation, i is 1 or 2, x is 0.5 or 1 and the product i·x is equal to 1, and z is an integer from 3 to 35. The polyesters of the invention show a significantly improved dirt removal ability and can be used as soil-release polymers in washing and cleaning agents and in textile care products.
    Type: Application
    Filed: March 17, 2017
    Publication date: September 28, 2017
    Inventors: Paula Barreleiro, Hans Jürgen Scholz, Andreas Schottstedt, Roman Morschhäuser
  • Publication number: 20170175050
    Abstract: Disclosed are fine-particulate powders containing particles with at least 80% by weight of a manganese complex with nitrogen-containing ligands, wherein one or more of the ligands are macrocyclic ligands, wherein at least 70% by weight of the particles have particle sizes in the range from 1 ?m to 50 ?m, at most 15% by weight of the particles have particle sizes >50 ?m and at most 15% by weight of the particles have particle sizes <1 ?m, wherein the percentages refer to the total amount of the particles. These powders can be used as bleaching catalysts in washing and cleaning agents and display an improved activity and at the same time these are toxicologically non-hazardous during manufacturing and use.
    Type: Application
    Filed: December 15, 2016
    Publication date: June 22, 2017
    Inventors: Paula BARRELEIRO, Gerhard SCHWARZ, Andreas SCHOTTSTEDT, Roman MORSCHHÄUSER
  • Publication number: 20160152929
    Abstract: The invention relates to a bleaching-agent co-granule containing a bleach activator, a metal-containing bleach catalyst comprising at least one ligand from the group consisting of di- or trimethyltriazacyclononane and derivatives of these, and a homo- or copolymeric polycarboxylate or its salts or partial neutralizates having a pH in the range from 3 to 9. The bleaching-agent co-granule is obtained in an anhydrous granulating process, preferably by compaction at a temperature below 100° C. The invention also relates to the method of using the bleaching-agent co-granule in dishwasher detergents and to a detergent comprising said bleaching-agent co-granule.
    Type: Application
    Filed: May 9, 2014
    Publication date: June 2, 2016
    Inventors: Gerd REINHARDT, Michael BEST, Miriam LADWIG, Andreas SCHOTTSTEDT, Mathias GROESCHEN, Sven GEBHARD
  • Publication number: 20160145541
    Abstract: The invention relates to a bleach catalyst granules containing a metal-containing bleach catalyst, which comprises at least one ligand selected from the group comprising di- or trimethyltriazcyclononanes or derivatives therefrom, and a homo- or copolymer polycarboxylate, salts thereof or partially neutralized having a pH-value of between 3 and 9. Said granules are produced in an anhydrous granulation process, in particular by compacting, the treatment temperature being maintained at below 100° C.
    Type: Application
    Filed: May 9, 2014
    Publication date: May 26, 2016
    Inventors: Gerd REINHARDT, Michael BEST, Miriam LADWIG, Andreas SCHOTTSTEDT, Mathias GROESCHEN, Sven GEBHARD
  • Patent number: 8883704
    Abstract: The invention relates to co-granules containing a) at least one bleach activator, b) at least one metal-containing bleach catalyst, and c) at least 5 wt. % of at least one organic acid. The co-granules are easy to produce, have a high stability in storage and are advantageously suitable for producing cleaning products and detergents and especially products for cleaning crockery in a machine.
    Type: Grant
    Filed: April 1, 2010
    Date of Patent: November 11, 2014
    Assignee: Clariant International Ltd.
    Inventors: Georg Borchers, Gerd Reinhardt, Andreas Schottstedt
  • Patent number: 8486881
    Abstract: The invention relates to co-granules containing a granule core and a sheath or coating layer surrounding the granule core. Said co-granules are characterized in that the granule core contains a) at least one bleach activator, a2) between 0 and 20 wt. % of the total quantity of at least one bleach catalyst contained in the co-granule, and c) at least one binding agent, and the sheath or coating layer contains d) between 80 and 100 wt. % of the total quantity of the at least one bleach catalyst contained in the co-granule, and e) at least one coating agent. The co-granules are advantageously suitable for producing cleaning products and detergents and especially products for washing crockery in a machine.
    Type: Grant
    Filed: April 1, 2010
    Date of Patent: July 16, 2013
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Georg Borchers, Gerd Reinhardt, Andreas Schottstedt
  • Publication number: 20120094889
    Abstract: The invention relates to co-granules containing a) at least one bleach activator, b) at least one metal-containing bleach catalyst, and c) at least 5 wt. % of at least one organic acid. The co-granules are easy to produce, have a high stability in storage and are advantageously suitable for producing cleaning products and detergents and especially products for cleaning crockery in a machine.
    Type: Application
    Filed: April 1, 2010
    Publication date: April 19, 2012
    Applicant: CLARIANT FINANCE (BVI) LIMITED
    Inventors: Georg Borchers, Gerd Reinhardt, Andreas Schottstedt
  • Publication number: 20120058927
    Abstract: The invention relates to co-granules containing a granule core and a sheath or coating layer surrounding the granule core. Said co-granules are characterised in that the granule core contains a) at least one bleach activator, a2) between 0 and 20 wt. % of the total quantity of at least one bleach catalyst contained in the co-granule, and c) at least one binding agent, and the sheath or coating layer contains d) between 80 and 100 wt. % of the total quantity of the at least one bleach catalyst contained in the co-granule, and e) at least one coating agent. The co-granules are advantageously suitable for producing cleaning products and detergents and especially products for washing crockery in a machine.
    Type: Application
    Filed: April 1, 2010
    Publication date: March 8, 2012
    Applicant: CLARIANT FINANCE (BVI) LIMITED
    Inventors: Georg Borchers, Gerd Reinhardt, Andreas Schottstedt
  • Publication number: 20110095109
    Abstract: A process for producing polyester pellets is claimed. This process consists in a) grinding the melt of the polyester, after the production thereof, to a powder with particle sizes of d90,3=10 to 150 mm, and b) processing this powder to pellets with particle sizes of 150 to 1600 mm.
    Type: Application
    Filed: June 12, 2009
    Publication date: April 28, 2011
    Applicant: CLARIANT FINANCE (BVI) LIMITED
    Inventors: Georg Borchers, Roman Morschhaeuser, Andreas Schottstedt, Mathias Groeschen
  • Publication number: 20090256113
    Abstract: The invention relates to a method for the production of bleaching catalyst granules, containing a bleaching catalyst, an acidic polymer, a support material and optionally further adjuncts, characterized in that a fluid bed is formed from the support material in a fluidized bed apparatus, an aqueous solution or dispersion is added to the fluid bed, containing the bleaching catalyst, the acidic polymer, and optionally the further adjuncts which is then granulated and dried. The method is particularly suitable for bleaching catalysts of formula (1), where R, R1, R2, R3 and X have the meanings given in the description.
    Type: Application
    Filed: July 25, 2006
    Publication date: October 15, 2009
    Inventors: Georg Borchers, Andreas Schottstedt, Michael Wessling
  • Publication number: 20090131298
    Abstract: A method for producing granulated ammonium nitriles is claimed which consists in granulating and simultaneously drying an ammonium nitrile together with a binder and optionally a further additive in a pneumatically generated fluidized bed.
    Type: Application
    Filed: April 27, 2004
    Publication date: May 21, 2009
    Inventors: Georg Borchers, Andreas Schottstedt
  • Publication number: 20090130224
    Abstract: The invention relates to an improved bleach activator and bleach activator compositions in the form of granules for use in washing, cleaning and disinfectant compositions. More specifically, the invention relates to granular bleach-activating mixtures that consist substantially of a) a hydroxybenzoic acid derivative of formula (I) in which R is C8-C11-alkyl and b) tetraacetyl ethylene diamine and/or 1,5-diacetyl-2,4-dioxo-1,3,5-hexahydrotriazine, the granules being free of binding agents.
    Type: Application
    Filed: August 25, 2006
    Publication date: May 21, 2009
    Inventors: Georg Borchers, Andreas Schottstedt, Gerd Reinhardt
  • Publication number: 20070249515
    Abstract: The present invention relates a method for producing quaternary hydroxyalkylammonium granules, which is characterized by spraying an aqueous solution or suspension comprising a) a quaternary hydroxyalkylammonium compound b) a carrier material and c) optionally binders and/or other additives into a fluidized-bed apparatus. The fluidized-bed consists of granules that have the same composition as the aqueous solution or suspension sprayed into the apparatus.
    Type: Application
    Filed: April 9, 2005
    Publication date: October 25, 2007
    Inventors: Georg Borchers, Andreas Schottstedt