Patents by Inventor Philippe Wolfgang Paul Valere Bleiman

Philippe Wolfgang Paul Valere Bleiman 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).

  • Melamine cyanurate in crystalline form
    Patent number: 8765864
    Abstract: The present invention relates to a novel process for preparing solid, small particles comprising melamine cyanurate in essentially crystalline form. A concentrated aqueous dispersion is prepared of a mixture of cyanuric acid and melamine and selected surfactants are added to the dispersion.
    Type: Grant
    Filed: October 6, 2005
    Date of Patent: July 1, 2014
    Assignee: BASF SE
    Inventors: Renier Henricus Maria Kierkels, Philippe Wolfgang Paul Valere Bleiman, Leopold Franciscus Wynandus Vleugels
  • Free flowing melamine cyanurate agglomerate
    Patent number: 7547738
    Abstract: The invention relates to agglomerates of flame-retardants, in particular melamine cyanurate, containing aggregates with an average size of between 0.1 and 50? bonded to each other with the aid of an auxiliary material. This auxiliary material is present in a concentration of between 0.1 and 10 wt. %, relative to the total agglomerates weight, and has a softening point higher than 40° C. The invention further relates to a method for producing said agglomerates, the use of the agglomerates in the preparation of polymer compositions, and polymer compositions containing melamine cyanurate.
    Type: Grant
    Filed: May 23, 2006
    Date of Patent: June 16, 2009
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Renier Henricus Maria Kierkels, Philippe Wolfgang Paul Valere Bleiman, Stefan Hendrikus Schaafsma, Johannes Cornelis Jozef Mokveld
  • Melamine Cyanurate in Crystalline Form
    Publication number: 20080312360
    Abstract: The present invention relates to a novel process for preparing solid, small particles comprising melamine cyanurate in essentially crystalline form. A concentrated aqueous dispersion is prepared of a mixture of cyanuric acid and melamine and selected surfactants are added to the dispersion.
    Type: Application
    Filed: October 6, 2005
    Publication date: December 18, 2008
    Inventors: Renier Henricus Maria Kierkels, Philippe Wolfgang Paul Valere Bleiman, Leopold Franciscus Wynandus Vleugels
  • Free flowing melamine cyanurate agglomerate
    Publication number: 20060276572
    Abstract: The invention relates to agglomerates of flame-retardants, in particular melamine cyanurate, containing aggregates with an average size of between 0.1 and 50? bonded to each other with the aid of an auxiliary material. This auxiliary material is present in a concentration of between 0.1 and 10 wt. %, relative to the total agglomerates weight, and has a softening point higher than 40° C. The invention further relates to a method for producing said agglomerates, the use of the agglomerates in the preparation of polymer compositions, and polymer compositions containing melamine cyanurate.
    Type: Application
    Filed: May 23, 2006
    Publication date: December 7, 2006
    Inventors: Renier Henricus Kierkels, Philippe Wolfgang Paul Valere Bleiman, Stefan Hendrikus Schaafsma, Johannes Jozef Mokveld