Patents by Inventor Geesje Klasina Spijkerman

Geesje Klasina Spijkerman 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).

  • Formulation of di(4-tert-butylcyclohexyl) peroxydicarbonate
    Patent number: 11629240
    Abstract: Powder formulation comprising 20-75 wt % of di(4-tert-butylcyclohexyl) peroxydicarbonate and 25-80 wt % of a phlegmatizer selected from the group consisting of ethylene glycol dibenzoate, phenyl benzoate, trimethylol propane tribenzoate, dimethylsulfon, ethylene glycol ditoluate, 1,3-propanediol ditoluate, ethylene glycol 4-tert-butylbenzoate, ethylene glycol monobenzoate monotoluate, 2,3-butanediol dibenzoate, 4-methylphenyl benzoate acid ester, and combinations thereof.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: April 18, 2023
    Assignee: NOURYON CHEMICALS INTERNATIONAL B.V.
    Inventors: Geesje Klasina Spijkerman, Auke Gerardus Talma, Markus Oliver Majoor, Antonie Den Braber, Martin Hermanus Maria Jansen
  • Solution comprising a dye
    Patent number: 11332620
    Abstract: Solution comprising about 1 to about 25 wt % of a dye that loses its colour during radical cure and about 75 to about 99 wt % of a solvent mixture, said solvent mixture comprising cyclopentanone and dimethylsulphoxide in a weight ratio of about 60:40 to about 95:5.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: May 17, 2022
    Assignee: NOURYON CHEMICALS INTERNATIONAL B.V.
    Inventors: Raymond Albertus Johannes Ten Broeke, Maaike Anne Gertrud Ter Brake, Koichi Tateishi, Johannes Hermanus Ter Beek, Auke Gerardus Talma, Maria Steensma, Geesje Klasina Spijkerman
  • Powder mixture comprising organic peroxide
    Patent number: 11220608
    Abstract: Powder mixture comprising 20-80 wt % of one or more powdered organic peroxides selected from the group consisting of dibenzoyl peroxide and substituted dibenzoyl peroxides, 20-80 wt % of a powdered filler material, at least 60 wt %, thereof consisting of a solid inorganic flame retardant, and 0-20 wt % water.
    Type: Grant
    Filed: October 2, 2018
    Date of Patent: January 11, 2022
    Assignee: NOURYON CHEMICALS INTERNATIONAL B.V.
    Inventors: Geesje Klasina Spijkerman, Martin Hermanus Maria Jansen, Auke Gerardus Talma, Antonie Den Braber
  • SOLUTION COMPRISING A DYE
    Publication number: 20210017389
    Abstract: Solution comprising about 1 to about 25 wt % of a dye that loses its colour during radical cure and about 75 to about 99 wt % of a solvent mixture, said solvent mixture comprising cyclopentanone and dimethylsulphoxide in a weight ratio of about 60:40 to about 95:5.
    Type: Application
    Filed: March 8, 2019
    Publication date: January 21, 2021
    Applicant: NOURYON CHEMICALS INTERNATIONAL B.V.
    Inventors: Raymond Albertus Johannes TEN BROEKE, Maaike Anne Gertrud TER BRAKE, Koichi TATEISHI, Johannes Hermanus TER BEEK, Auke Gerardus TALMA, Maria STEENSMA, Geesje Klasina SPIJKERMAN
  • FORMULATION OF DI(4-TERT-BUTYLCYCLOHEXYL) PEROXYDICARBONATE
    Publication number: 20210009786
    Abstract: Powder formulation comprising 20-75 wt % of di(4-tert-butylcyclohexyl) peroxydicarbonate and 25-80 wt % of a phlegmatizer selected from the group consisting of ethylene glycol dibenzoate, phenyl benzoate, trimethylol propane tribenzoate, dimethylsulfon, ethylene glycol ditoluate, 1,3-propanediol ditoluate, ethylene glycol 4-tert-butylbenzoate, ethylene glycol monobenzoate monotoluate, 2,3-butanediol dibenzoate, 4-methylphenyl benzoate acid ester, and combinations thereof.
    Type: Application
    Filed: December 14, 2018
    Publication date: January 14, 2021
    Applicant: Nouryon Chemicals International B.V.
    Inventors: Geesje Klasina SPIJKERMAN, Auke Gerardus TALMA, Markus Oliver MAJOOR, Antonie DEN BRABER, Martin Hermanus Maria JANSEN
  • POWDER MIXTURE COMPRISING ORGANIC PEROXIDE
    Publication number: 20200299522
    Abstract: Powder mixture comprising 20-80 wt % of one or more powdered organic peroxides selected from the group consisting of dibenzoyl peroxide and substituted dibenzoyl peroxides, 20-80 wt % of a powdered filler material, at least 60 wt %, thereof consisting of a solid inorganic flame retardant, and 0-20 wt % water.
    Type: Application
    Filed: October 2, 2018
    Publication date: September 24, 2020
    Applicant: NOURYON CHEMICALS INTERNATIONAL B.V.
    Inventors: Geesje Klasina SPIJKERMAN, Martin Hermanus Maria JANSEN, Auke Gerardus TALMA, Antonie DEN BRABER
  • Formulation of di(4-tert-butylcyclohexyl) peroxydicarbonate
    Patent number: 10689337
    Abstract: Powder formulation comprising 20-75 wt % of di(4-tert-butylcyclohexyl) peroxydicarbonate and 25-80 wt % of ethylene glycol dibenzoate.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: June 23, 2020
    Assignee: NOURYON CHEMICALS INTERNATIONAL B.V.
    Inventors: Geesje Klasina Spijkerman, Auke Gerardus Talma, Markus Oliver Majoor, Antonie Den Braber, Martin Hermanus Maria Jansen
  • FORMULATION OF DI(4-TERT-BUTYLCYCLOHEXYL) PEROXYDICARBONATE
    Publication number: 20190185425
    Abstract: Powder formulation comprising 20-75 wt % of di(4-tert-butylcyclohexyl) peroxydicarbonate and 25-80 wt % of ethylene glycol dibenzoate.
    Type: Application
    Filed: December 14, 2018
    Publication date: June 20, 2019
    Inventors: Geesje Klasina SPIJKERMAN, Auke Gerardus TALMA, Markus Oliver MAJOOR, Antonie DEN BRABER, Martin Hermanus Maria JANSEN
  • Process for preparing a masterbatch of polymer additive
    Patent number: 10059816
    Abstract: Process for preparing a masterbatch comprising 20-90 wt % of a polymer additive dispersed in 10-80 wt % of a thermoplastic polymer, said process comprising the steps of: —providing the additive in liquid form, —optionally heating the additive, —adding solid particles of the thermoplastic polymer to the liquid additive, —heating the resulting mixture to a temperature in or above the melting temperature of the polymer, —treating the mixture with shaping equipment to form solid particles.
    Type: Grant
    Filed: September 22, 2015
    Date of Patent: August 28, 2018
    Assignee: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.
    Inventor: Geesje Klasina Spijkerman
  • Process for Preparing a Masterbatch of Polymer Additive
    Publication number: 20170342222
    Abstract: Process for preparing a masterbatch comprising 20-90 wt % of a polymer additive dispersed in 10-80 wt % of a thermoplastic polymer, said process comprising the steps of: —providing the additive in liquid form, —optionally heating the additive, —adding solid particles of the thermoplastic polymer to the liquid additive, —heating the resulting mixture to a temperature in or above the melting temperature of the polymer, —treating the mixture with shaping equipment to form solid particles.
    Type: Application
    Filed: September 22, 2015
    Publication date: November 30, 2017
    Inventor: Geesje Klasina SPIJKERMAN
  • FLAME RETARDANT POLYOLEFIN COMPOSITION
    Publication number: 20110160363
    Abstract: Composition comprising at least one polyolefin, tris-dibromopropyl isocyanurate, and 0.05-2 phr of at least one free radical initiator, said initiator being selected from the group consisting of organic peroxides, C—C initiators, and N—N initiators. This composition makes it possible to obtain very good flame retardancy with much lower amounts of synergist than known compositions. What is more, a synergist is not even required to obtain sufficient flame retardancy.
    Type: Application
    Filed: August 27, 2009
    Publication date: June 30, 2011
    Applicant: AKZO NOBEL N.V.
    Inventors: Andreas Herman Hogt, Geesje Klasina Spijkerman, Haimo Tonnaer
  • FLAME RETARDANT POLYOLEFIN COMPOSITION
    Publication number: 20110152412
    Abstract: Composition comprising at least one polyolefin, a brominated flame retardant, a free radical initiator, and more than 0.1 phr to not more than 0.5 phr of a synergist selected from the group consisting of antimony compounds, tin compounds, molybdenum compounds, zirconium compounds, boron compounds, zinc compounds, and mixtures thereof. This composition has very good flame retardancy with only very low amounts of synergist.
    Type: Application
    Filed: August 27, 2009
    Publication date: June 23, 2011
    Inventors: Andreas Herman Hogt, Geesje Klasina Spijkerman, Haimo Tonnaer
  • Extrusion process for enhancing the melt strength of polypropylene
    Patent number: 6323289
    Abstract: The invention relates to a process for enhancing the melt strength of polypropylene comprising the steps of: mixing the polypropylene with at least one peroxydicarbonate; reacting said polypropylene and peroxydicarbonate at a temperature between 150° C. and 300° C., with the proviso that the peroxydicarbonate is not in the form of an aqueous dispersion.
    Type: Grant
    Filed: May 19, 2000
    Date of Patent: November 27, 2001
    Assignee: Akzo Nobel NV
    Inventors: Andreas Herman Hogt, Bart Fischer, Geesje Klasina Spijkerman