Patents by Inventor Carl-Eric Magnus Wilën

Carl-Eric Magnus Wilën 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).

  • Azo compounds for polypropylene degradation
    Patent number: 8461272
    Abstract: The invention relates to a process and compositions suitable for reducing by heat the molecular weight of polypropylene, propylene copolymers or polypropylene blends. Azo compounds bearing different substituents are added to the polymers.
    Type: Grant
    Filed: March 29, 2006
    Date of Patent: June 11, 2013
    Assignee: BASF SE
    Inventors: Michael Roth, Rudolf Pfaendner, Carl-Eric Magnus Wilén, Ronan Nicolas
  • Symmetric azo compounds in flame retardant compositions
    Patent number: 8247479
    Abstract: The invention, relates to azo-compounds of formula (I), wherein >N—O—R substituted 2,2,6,6-tetraalkyl-piperidyl groups are present. These azo-compounds have excellent flame retardant properties, either if applied alone, or combined with other compounds, having flame retardant properties.
    Type: Grant
    Filed: February 13, 2008
    Date of Patent: August 21, 2012
    Assignee: BASF SE
    Inventors: Michael Roth, Rudolf Pfaendner, Carl-Eric Magnus Wilén, Melanie Aubert
  • Flame retardant compositions
    Patent number: 7691929
    Abstract: The present invention is directed a method of flame retarding a polymeric substrate using a specific group of azo and peroxide derivatives as flame retardants, to flame retardant compositions as well as to novel azo compounds usable as flame retarding compounds.
    Type: Grant
    Filed: January 9, 2009
    Date of Patent: April 6, 2010
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Nicolas Ronan, Carl-Eric Magnus Wilën
  • Flame retardant compositions
    Publication number: 20090186970
    Abstract: The present invention is directed a method of flame retarding a polymeric substrate using a specific group of azo and peroxide derivatives as flame retardants, to flame retardant compositions as well as to novel azo compounds usable as flame retarding compounds
    Type: Application
    Filed: January 9, 2009
    Publication date: July 23, 2009
    Inventors: Nicolas Ronan, Carl-Eric Magnus Wilen
  • Azo Compounds for Polypropylene Degradation
    Publication number: 20090105425
    Abstract: The invention relates to a process and compositions suitable for reducing by heat the molecular weight of polypropylene, propylene copolymers or polypropylene blends. Azo compounds bearing different substituents are added to the polymers.
    Type: Application
    Filed: March 29, 2006
    Publication date: April 23, 2009
    Inventors: Michael Roth, Rudolf Pfaendner, Carl-Eric Magnus Wilen, Ronan Nicolas
  • PROCESS FOR POLYMERIZING UNSATURATED POLYALKYLPIPERIDINES
    Publication number: 20020128406
    Abstract: A process is described for polymerizing ethylenically unsaturated sterically hindered amines of the polyalkylpiperidine type (HALS) by means of metallocene catalyst, novel polymers resulting therefrom and novel unsaturated HALS. The novel monomeric or copolymeric compounds can be employed advantageously for stabilizing organic material against the damaging effect of light, oxygen and/or heat.
    Type: Application
    Filed: June 16, 1999
    Publication date: September 12, 2002
    Inventors: CARL-ERIC MAGNUS WILEN, JAN ANDERS HARRY NASMAN, ALFRED STEINMANN