Patents by Inventor Wouter Heinen

Wouter Heinen 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).

  • Salt of a melamine condensation product and a phosphorous-containing acid
    Patent number: 6730773
    Abstract: Salt of a melamine condensation product and a phosphorus-containing acid, the phosphorus-containing acid being a monobasic phosphorus-containing acid. Further a method for the preparation of a phosphorus-containing salt of a melamine condensation product in which a triazine compound and a monobasic phosphorus-containing acid are heated together to a temperature between 250 and 400° C.
    Type: Grant
    Filed: October 15, 2002
    Date of Patent: May 4, 2004
    Assignee: Ciba Specialty Chemicals Corporation
    Inventor: Wouter Heinen
  • Flame-retarding composition and process for the preparation thereof
    Patent number: 6646030
    Abstract: Flame-retarding composition comprising 10-90 wt. % melem, 0.01-30 wt. % melam, 0.01-15 wt. % melamine, 0.1-65 wt. % higher condensation products of melamine and/or melem, the volatiles content being lower than 3 wt. % and the sum of the individual components amounting to 100 wt. %. Also a process for the preparation of a flame-retarding composition comprising 10-90 wt. % melem, 0.01-30 wt. % melam, 0.01-15 wt. % melamine and 0.1-65 wt. % higher condensation products of melamine and/or melem, the volatiles content being lower than 3 wt. %, by heating melamine-containing starting product for more than 0.1 second, for example by passing it through a heating zone, at a temperature of 350-800° C. and a pressure of between 1 KPa and 50 Mpa. The invention also relates to polymer compositions containing the flame-retarding composition.
    Type: Grant
    Filed: September 21, 2001
    Date of Patent: November 11, 2003
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Wouter Heinen, Renier H. M. Kierkels
  • Flame-retardant mixture
    Patent number: 6630526
    Abstract: Flame-retardant mixture comprising: a) a polymer composition b) a phosphorus-containing compound c) a triazine flame retardant, the weight ratio of a, b and c lying between 94:1:5 and 35:30:35, the triazine flame retardant comprising at least: c1) 1-95 wt. % melem, c2) 0.01-25 wt. % melam, c3) 0.01-20 wt. % melamine, c4) 0.1-95 wt. % higher condensation products of melamine and/or of melem, the wt. % being relative to the total of c1) up to and including c4) and together amounting to 100%, and the concentration of volatile components in the flame retardant being at most 5 wt. %. Also a process for the preparation of the triazine flame retardant.
    Type: Grant
    Filed: March 21, 2002
    Date of Patent: October 7, 2003
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Wouter Heinen, Maurits F. H. Van Tol, Renier H. M. Kierkels, Gerhard Van Vliet
  • Salt of a melamine condensation product and a phosphorous-containing acid
    Publication number: 20030096946
    Abstract: Salt of a melamine condensation product and a phosphorus-containing acid, the phosphorus-containing acid being a monobasic phosphorus-containing acid. Further a method for the preparation of a phosphorus-containing salt of a melamine condensation product in which a triazine compound and a monobasic phosphorus-containing acid are heated together to a temperature between 250 and 400° C.
    Type: Application
    Filed: October 15, 2002
    Publication date: May 22, 2003
    Inventor: Wouter Heinen
  • Flame-retardant mixture
    Publication number: 20030018107
    Abstract: Flame-retardant mixture comprising:
    Type: Application
    Filed: March 21, 2002
    Publication date: January 23, 2003
    Inventors: Wouter Heinen, Maurits F.H. Van Tol, Renier H.M. Kierkels, Gerhard Van Vliet
  • Flame-retarding composition and process for the preparation thereof
    Publication number: 20020010237
    Abstract: Flame-retarding composition comprising
    Type: Application
    Filed: September 21, 2001
    Publication date: January 24, 2002
    Inventors: Wouter Heinen, Renier H.M. Kierkels