Patents by Inventor Matthias Zaeh

Matthias Zaeh 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: 10745353
    Abstract: The invention relates to a compound of formula (I), characterised by the characteristic signals in the X-ray diffraction powder pattern measured with Cu Kalpha radiation (0.154 nm) at a 2-theta angle of 15.0 and 22.7 with a high intensity, and of 5.0, 11.3, 18.9, 20.8, 21.6 and 23.6 with a medium intensity, as well as to a method for producing the compound of formula (I) by reacting at least one isophthalic acid diester of formula (II) where R1 and R2 are the same or different and stand for an aliphatic group, with two equivalents 4-amino-2,2,6,6-tetramethylpiperidine, in the presence of at least one catalyst from the group of metal alcoholates and at a reaction temperature of between 50 and 150° C.
    Type: Grant
    Filed: May 31, 2016
    Date of Patent: August 18, 2020
    Assignee: Clariant Plastics & Coatings Ltd
    Inventors: Mike Sahl, Eduard Zeisberger, Matthias Zaeh, Ottmar Schacker, Pascal Steffanut
  • Patent number: 10487193
    Abstract: The invention relates to a method for stabilization of polyamides, which comprises admixing the polyamides before or during processing with an effective amount of one or more compounds of formula (1) where R1 and R2 each represent a sterically hindered cyclic amine.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: November 26, 2019
    Assignee: Clariant Plastics & Coatings Ltd
    Inventors: Christoph Kroehnke, Matthias Zaeh
  • Publication number: 20180194727
    Abstract: The invention relates to a compound of formula (I), characterised by the characteristic signals in the X-ray diffraction powder pattern measured with Cu Kalpha radiation (0.154 nm) at a 2-theta angle of 15.0 and 22.7 with a high intensity, and of 5.0, 11.3, 18.9, 20.8, 21.6 and 23.6 with a medium intensity, as well as to a method for producing the compound of formula (I) by reacting at least one isophthalic acid diester of formula (II) where R1 and R2 are the same or different and stand for an aliphatic group, with two equivalents 4-amino-2,2,6,6-tetramethylpiperidine, in the presence of at least one catalyst from the group of metal alcoholates and at a reaction temperature of between 50 and 150° C.
    Type: Application
    Filed: May 31, 2016
    Publication date: July 12, 2018
    Applicant: CLARIANT PLASTICS & COATINGS LTD
    Inventors: Mike SAHL, Eduard ZEISSBERGER, Matthias ZAEH, Ottmar SCHACKER, Pascal STEFFANUT
  • Publication number: 20180022896
    Abstract: The invention relates to a method for stabilization of polyamides, which comprises admixing the polyamides before or during processing with an effective amount of one or more compounds of formula (1) where R1 and R2 each represent a sterically hindered cyclic amine.
    Type: Application
    Filed: December 18, 2015
    Publication date: January 25, 2018
    Applicant: CLARIANT PLASTICS & COATINGS LTD
    Inventors: Christoph KROEHNKE, Matthias ZAEH
  • Patent number: 9867435
    Abstract: Watch comprising a watchband fixed to a case, this watchband comprising an extending strand, and a buckle arranged to encircle a case or an element protruding from this watchband, formed by this extending strand or by an added buckle, and the buckle comprises a stop surface arranged to cooperate, in a fastened position, either with a first complementary stop surface of a case, or with a second complementary stop surface comprised in the protruding element of the watchband.
    Type: Grant
    Filed: February 9, 2016
    Date of Patent: January 16, 2018
    Assignee: Swatch AG
    Inventors: Olivia Lepore, Matthias Zaeh
  • Patent number: 9732202
    Abstract: Compositions containing, as component (A), a finely particled phosphinic acid salt of formula (I) and/or a finely particled diphosphinic acid salt of formula (II) and/or the polymers thereof, as component (B), an aminoether of formula (III), and as component (C), a thermoplastic polymer.
    Type: Grant
    Filed: July 14, 2014
    Date of Patent: August 15, 2017
    Assignee: Clariant International Ltd.
    Inventors: Sebastian Hörold, Matthias Zäh
  • Publication number: 20160242516
    Abstract: Watch comprising a watchband fixed to a case, this watchband comprising an extending strand, and a buckle arranged to encircle a case or an element protruding from this watchband, formed by this extending strand or by an added buckle, and the buckle comprises a stop surface arranged to cooperate, in a fastened position, either with a first complementary stop surface of a case, or with a second complementary stop surface comprised in the protruding element of the watchband.
    Type: Application
    Filed: February 9, 2016
    Publication date: August 25, 2016
    Applicant: Swatch AG
    Inventors: Olivia LEPORE, Matthias Zaeh
  • Publication number: 20160177059
    Abstract: Compositions containing, as component (A), a finely particled phosphinic acid salt of formula (I) and/or a finely particled diphosphinic acid salt of formula (II) and/or the polymers thereof, as component (B), an aminoether of formula (III), and as component (C), a thermoplastic polymer.
    Type: Application
    Filed: July 14, 2014
    Publication date: June 23, 2016
    Applicant: CLARIANT INTERNATIONAL LTD.
    Inventors: Sebastian HÖROLD, Matthias ZÄH
  • Patent number: 8765848
    Abstract: The invention relates to waxes modified with sterically hindered amines, to a process for their preparation and to their use for stabilizing organic material.
    Type: Grant
    Filed: March 7, 2007
    Date of Patent: July 1, 2014
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Rainer Fell, Sebastian Hörold, Matthias Zäh
  • Publication number: 20100286319
    Abstract: The invention relates to waxes modified with sterically hindered amines, to a process for their preparation and to their use for stabilizing organic material.
    Type: Application
    Filed: March 7, 2007
    Publication date: November 11, 2010
    Applicant: CLARIANT FINANCE (BVI) LIMITED
    Inventors: Rainer Fell, Sebastian Hörold, Matthias Zäh
  • Patent number: 7101929
    Abstract: The present invention relates to a process for reducing water carry-over during the production of polyolefin films or polyolefin tapes which are passed through a waterbath, where the polyolefin formulation comprises polyolefin waxes. The results are that less water is carried over and that the products have higher quality and better processing properties.
    Type: Grant
    Filed: May 15, 2003
    Date of Patent: September 5, 2006
    Assignee: Clariant GmbH
    Inventors: Matthias Zäh, FranzLeo Heinrichs, Reiner Hess
  • Publication number: 20060110589
    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: Application
    Filed: July 17, 2003
    Publication date: May 25, 2006
    Inventors: Matthias Zaeh, Alexander Lichtblau
  • Patent number: 6787591
    Abstract: The invention relates to synergistic stabilizer compositions comprising Hindered Amine Stabilizers (HAS), phenolic antioxidants, and, if appropriate, UV-absorbers, for thermoplastic polymers, especially for polyolefin pipes and other polyolefin molding materials, which are in prolonged contact with water. These mixtures show superior long term performance as measured by standard test methods such as oxidation induction time (OIT).
    Type: Grant
    Filed: August 22, 2002
    Date of Patent: September 7, 2004
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Harald Koch, Christoph Kröhnke, Alexander Lichtblau, Matthias Zäh
  • Patent number: 6646035
    Abstract: The invention relates to synergistic combinations of certain phenolic antioxidants in thermoplastic polymers, especially in polyolefin pipes and other thermoplastic molding materials which are in prolonged contact with water. The instant combinations lead to better resistance against oxidative degradation as measured in terms of oxidation induction times (OIT), color and other technically important parameters as known in the art.
    Type: Grant
    Filed: August 22, 2002
    Date of Patent: November 11, 2003
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Harald Koch, Alexander Lichtblau, Matthias Zäh, Christoph Kröhnke
  • Patent number: 6491853
    Abstract: The present application relates to storage-stable plastics additives which are prepared by cooling a mixture of 99.9 to 10% by weight of molten additive material and 0.1 to 90% by weight of crystalline additive material after a shaping process. The shaping process is carried out by forcing the mixture out of a tool provided with die openings, and cooling can be carried out on a cooled conveyor belt. Even after prolonged storage and/or handling, these plastics additives remain free-flowing and do not stick.
    Type: Grant
    Filed: November 6, 1996
    Date of Patent: December 10, 2002
    Assignee: Clariant GmbH
    Inventors: Karl Gaa, Günter Nowy, Gerhard Pfahler, Matthias Zäh
  • Patent number: 6420461
    Abstract: The present invention relates to novel compounds of the formula (III) 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 suitable for stabilizing organic material against the effect of light and heat.
    Type: Grant
    Filed: November 12, 1999
    Date of Patent: July 16, 2002
    Assignee: Clariant GmbH
    Inventors: Thomas Stährfeldt, Mathias Mehrer, Matthias Zäh, Gerhard Pfahler
  • Patent number: D775543
    Type: Grant
    Filed: August 24, 2015
    Date of Patent: January 3, 2017
    Assignee: SWATCH LTD
    Inventor: Matthias Zäh