Patents by Inventor Stephanie Schauhoff

Stephanie Schauhoff 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: 10233275
    Abstract: A first composition (A) contains (i) at least one compound (I) selected from the group consisting of triallyl isocyanurate, and triallyl cyanurate, wherein the compound (I) is preferably triallyl isocyanurate, and (ii) at least one bis(alkenylamide) compound. A second composition (B) contains the first composition (A) and at least one polyolefin copolymer. The composition (B) is used for the production of a film for encapsulation of an electronic device, especially a solar cell.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: March 19, 2019
    Assignee: Evonik Degussa GmbH
    Inventors: Daniel Ulbricht, Marcel Hein, Frank Kleff, Stephanie Schauhoff, Juergen Ohlemacher
  • Patent number: 9587061
    Abstract: A first composition (A) contains (i) at least one compound (I) selected from the group consisting of triallyl isocyanurate, and triallyl cyanurate, wherein the compound (I) is preferably triallyl isocyanurate; and (ii) at least one urea compound. A second composition (B) contains the first composition (A) and at least one polyolefin copolymer. Composition (B) is used for producing a film for encapsulating an electronic device, in particular a solar cell.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: March 7, 2017
    Assignee: Evonik Degussa GmbH
    Inventors: Daniel Ulbricht, Marcel Hein, Frank Kleff, Stephanie Schauhoff, Juergen Ohlemacher
  • Publication number: 20160177124
    Abstract: A first composition (A) contains (i) at least one compound (I) selected from the group consisting of triallyl isocyanurate, and triallyl cyanurate, wherein the compound (I) is preferably triallyl isocyanurate, and (ii) at least one ethylene glycol di(meth)acrylate compound. In addition, a second composition (B) contains the first composition (A) and at least one polyolefin copolymer. Composition (B) can be used for production of a film for encapsulation of an electronic device, especially a solar cell.
    Type: Application
    Filed: December 17, 2015
    Publication date: June 23, 2016
    Applicant: Evonik Degussa GmbH
    Inventors: Daniel ULBRICHT, Marcel HEIN, Frank KLEFF, Stephanie SCHAUHOFF, Juergen OHLEMACHER
  • Publication number: 20160177015
    Abstract: A dispersion (D) contains (i) at least one polyolefin copolymer (I) as continuous phase; and (ii) at least one (meth)acrylamide compound dispersed in the polyolefin copolymer (I). The dispersion (D) is used for the production of a film for encapsulation of an electronic device, especially a solar cell.
    Type: Application
    Filed: December 18, 2015
    Publication date: June 23, 2016
    Applicant: Evonik Degussa GmbH
    Inventors: Daniel ULBRICHT, Marcel HEIN, Frank Kleff, Stephanie SCHAUHOFF, Juergen OHLEMACHER
  • Publication number: 20160177007
    Abstract: A first composition (A) contains (i) at least one compound (I) selected from the group consisting of triallyl isocyanurate, and triallyl cyanurate, wherein the compound (I) is preferably triallyl isocyanurate, and (ii) at least one bis(alkenylamide) compound. A second composition (B) contains the first composition (A) and at least one polyolefin copolymer. The composition (B) is used for the production of a film for encapsulation of an electronic device, especially a solar cell.
    Type: Application
    Filed: December 18, 2015
    Publication date: June 23, 2016
    Applicant: Evonik Degussa GmbH
    Inventors: Daniel ULBRICHT, Marcel HEIN, Frank KLEFF, Stephanie SCHAUHOFF, Juergen OHLEMACHER
  • Publication number: 20160177013
    Abstract: A first composition (A) contains (i) at least one compound (I) selected from the group consisting of triallyl isocyanurate, and triallyl cyanurate, wherein the compound (I) is preferably triallyl isocyanurate; and (ii) at least one urea compound. A second composition (B) contains the first composition (A) and at least one polyolefin copolymer. Composition (B) is used for producing a film for encapsulating an electronic device, in particular a solar cell.
    Type: Application
    Filed: December 17, 2015
    Publication date: June 23, 2016
    Applicant: Evonik Degussa GmbH
    Inventors: Daniel ULBRICHT, Marcel HEIN, Frank KLEFF, Stephanie SCHAUHOFF, Juergen OHLEMACHER
  • Publication number: 20160177014
    Abstract: A first composition (Z) contains (i) at least one compound (I) selected from the group consisting of triallyl isocyanurate, and triallyl cyanurate, and (ii) at least one (meth)acrylamide compound. In addition, a second composition (B) contains the first composition (Z) and at least one polyolefin copolymer. Composition (B) is used for production of a film for encapsulation of an electronic device, especially a solar cell.
    Type: Application
    Filed: December 18, 2015
    Publication date: June 23, 2016
    Applicant: Evonik Degussa GmbH
    Inventors: Daniel ULBRICHT, Marcel HEIN, Frank KLEFF, Stephanie SCHAUHOFF, Juergen OHLEMACHER
  • Patent number: 8177859
    Abstract: The present invention is directed to methods for flameproofing cellulose fibres and articles containing these fibres. The method involves treatment of materials with cyanuric chloride.
    Type: Grant
    Filed: September 20, 2002
    Date of Patent: May 15, 2012
    Assignee: Evonik Degussa GmbH
    Inventors: Manfred Schmidt, Stephanie Schauhoff, Frank Gähr
  • Publication number: 20110263748
    Abstract: The invention relates to a process for producing crosslinked organic polymers by reacting a polymer with a crosslinking agent from the group of the substituted cyanurates and isocyanurates, and also to novel compounds from the said group.
    Type: Application
    Filed: April 21, 2011
    Publication date: October 27, 2011
    Applicant: Evonik Degussa GmbH
    Inventors: Stephanie SCHAUHOFF, Martin TRAGESER
  • Patent number: 8022201
    Abstract: The present invention is directed to a process for preparing amides. In particular, the process is directed to a process performable on the industrial scale, in which a ketoxime can be converted to a cyclic or acyclic amide by means of a Beckmann rearrangement using 2,4,6-trichloro-1,3,5-triazine as a catalyst in a nonpolar organic solvent.
    Type: Grant
    Filed: April 3, 2007
    Date of Patent: September 20, 2011
    Assignee: Evonik Degussa GmbH
    Inventors: Martin Roos, Stephanie Schauhoff, Martin Trageser, Hans-Peter Krimmer
  • Publication number: 20090306367
    Abstract: The present invention is directed to a process for preparing amides. In particular, the process is directed to a process performable on the industrial scale, in which a ketoxime can be converted to a cyclic or acyclic amide by means of a Beckmann rearrangement using 2,4,6-trichloro-1,3,5-triazine as a catalyst in a nonpolar organic solvent.
    Type: Application
    Filed: April 3, 2007
    Publication date: December 10, 2009
    Applicant: EVONIK DEGUSSA GMBH
    Inventors: Martin Roos, Stephanie Schauhoff, Martin Trageser, Hans-Peter Krimmer
  • Publication number: 20080221321
    Abstract: The present invention is directed to a process for preparing salts of dihydroxychlorotriazine. The process comprises the hydrolysis of cyanuric chloride in alkaline aqueous solution and subsequent crystallization of monosalt of dihydroxychlorotriazine at neutral pH. The crystallization is improved with so-called dispersing assistants.
    Type: Application
    Filed: April 4, 2006
    Publication date: September 11, 2008
    Applicant: DEGUSSA GmbH
    Inventors: Stephanie Schauhoff, Frank Kleff
  • Patent number: 6926809
    Abstract: The present invention relates to a device and method for the production of cyanuric chloride. The device has three units for the production, purification and isolation of cyanuric chloride, the second unit having a partial condensation and being set in such a way that the quantity of gaseous pure cyanuric chloride produced is greater than that of the liquid impure cyanuric chloride discharged from it.
    Type: Grant
    Filed: May 13, 2002
    Date of Patent: August 9, 2005
    Assignee: Degussa AG
    Inventors: Kurt Puschner, Stephanie Schauhoff
  • Publication number: 20050011015
    Abstract: The present invention is directed to methods for flameproofing cellulose fibres and articles containing these fibres. The method involves treatment of materials with cyanuric chloride.
    Type: Application
    Filed: September 20, 2002
    Publication date: January 20, 2005
    Inventors: Manfred Schmidt, Stephanie Schauhoff, Frank Gahr
  • Patent number: 6838070
    Abstract: The invention relates to a method of producing cyanuric chloride by trimerizing chlorocyan at a temperature of at least 250° C. on washed activated carbon as the catalyst. The service life of the catalyst can be improved by using an activated coal with an effective pore volume V eff of equal or greater 0.17 ml/g, with V eff being the result of pores with a pore diameter ranging from 0.5 to 7 nm.
    Type: Grant
    Filed: March 8, 2000
    Date of Patent: January 4, 2005
    Assignee: Degussa AG
    Inventors: Walter Boerner, Ralph Marquardt, Stephanie Schauhoff, Christine Schick, Rudolf Vanheertum
  • Publication number: 20020195328
    Abstract: The present invention relates to a device and method for the production of cyanuric chloride. The device has three units for the production, purification and isolation of cyanuric chloride, the second unit having a partial condensation and being set in such a way that the quantity of gaseous pure cyanuric chloride produced is greater than that of the liquid impure cyanuric chloride discharged from it.
    Type: Application
    Filed: May 13, 2002
    Publication date: December 26, 2002
    Applicant: DE GUSSA AG
    Inventors: Kurt Puschner, Stephanie Schauhoff
  • Patent number: 6191222
    Abstract: Polyoxymethylene moulding compositions of the invention comprise (i) at least one polyoxymethylene homo- and/or copolymer, (ii) at least one conventional additive and (iii) at least one polymeric plastics material as an additive for improving the heat stability, and are distinguished in that (iii) is a copolymer which is obtainable by polymerization in bulk of a mixture of A) 60-90 parts of one or more (meth)acrylates, B) 10-40 parts of one or more (meth)acrylamides, C) per 100 parts of A)+B), >0.2 to 5 parts of molecular weight regulator and D) per 100 parts of A)+B), up to 2 parts of lipophilic free radical polymerization initiators, and in that the moulding composition comprises (iii) in an amount of 0.01 to 2 parts, based on the sum of (i)+(ii) where all the amounts relate to parts by weight (wt/wt) and A) and B) together must give 100 parts.
    Type: Grant
    Filed: August 7, 1998
    Date of Patent: February 20, 2001
    Assignee: Degussa-Huls AG
    Inventors: Bruno Keller, Stephanie Schauhoff, Klaus Dorn, Hartmut Alt, Dietrich Michelchen
  • Patent number: 5798433
    Abstract: The present invention provides a method of synthesizing polypropylene terephthalate with no more than 5 ppm acrolein and no more than 3 ppm allyl alcohol. The method comprises direct esterification of terephthalic acid with 1,3-propanediol in the presence of 30 to 200 ppm titanium in the form of an inorganic esterification catalyst containing at least 50 mol % TiO.sub.2 precipitate, blocking the esterification catalyst after esterification by adding 10 to 100 ppm phosphorus in the form of a phosphorus-oxygen compound, and then performing precondensation and polycondensation in the presence of 100 to 300 ppm antimony in the form of a conventional antimony polycondensation catalyst and optional conventional coloring agent.
    Type: Grant
    Filed: October 1, 1997
    Date of Patent: August 25, 1998
    Assignees: Zimmer Aktiengesellschaft, Degussa Aktiengesellschaft
    Inventors: Wolfgang Schmidt, Ulrich Thiele, Stephanie Schauhoff, Dahai Yu
  • Patent number: 5693709
    Abstract: Polyoxymethylene with improved acid stability, process for production and use thereof. By adding 0.01 to 5 parts of an alkali metal salt of a polybasic acid, for example oxalic acid, citric acid and/or 0.01 to 5 parts of a polyalkylene glycol, for example polyethylene glycol and/or 0.1 to 100 parts of a thermoplastic polyurethane, each related to 100 parts of a polyoxymethylene, this polymer is stabilized against attack by acids, wherein in particular the combination of an alkali metal salt, in particular an oxalate, with small proportions of a thermoplastic polyurethane is advantageous. The proportion of thermoplastic polyurethane may be reduced when the thermoplastic polyurethane has a Shore A hardness of 70 to 96. The weight loss of a stabilized POM under the action of acid may be less than 3% of that of an unstabilized POM. The products are useful when exposed to acidic agents such as irrigation systems, dishwashers, sanitary installations.
    Type: Grant
    Filed: August 26, 1996
    Date of Patent: December 2, 1997
    Assignee: Degussa Aktiengesellschaft
    Inventors: Edwin Nun, Stephanie Schauhoff, Detlef Arnoldi
  • Patent number: 5641830
    Abstract: A polyoxymethylene composition, polyoxymethylene parts, and a process for the production of polyoxymethylene. The polyoxymethylene composition contains one or more polyoxymethylene species, an aqueous anionic polyurethane dispersion, phenolic antioxidant(s), and optionally, colorant, filler, and conventional additives. The composition exhibits improved resistance to non-ferrous metal corrosion.
    Type: Grant
    Filed: September 21, 1995
    Date of Patent: June 24, 1997
    Assignee: DeGussa Aktiengesellschaft
    Inventors: Edwin Nun, Stephanie Schauhoff, Klaus Dorn