Patents by Inventor Rintje Pieter Sijbesma

Rintje Pieter Sijbesma 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: 8568962
    Abstract: The invention relates to a photo-embossing process for the preparation of a polymeric relief structure comprising the steps of: a) coating a substrate with a coating composition comprising one or more radiation-sensitive ingredients and less than 30 wt % polymeric binder material; b) locally treating the coated substrate with electromagnetic radiation having a periodic, non-periodic or random radiation-intensity pattern, forming a latent image, at a temperature below a transition temperature of the coating composition; and c) polymerizing and/or crosslinking the resulting coated substrate, at a temperature above said transition temperature, wherein the transition temperature is a temperature that defines a transition of the coating composition between a state of high viscosity and low viscosity and wherein the coating composition comprises a compound A comprising at least one radiation curable group and a photoinitiator, the coating composition having a transition temperature between 30° C. and 120° C.
    Type: Grant
    Filed: April 7, 2009
    Date of Patent: October 29, 2013
    Assignee: Stichting Dutch Polymer Institute
    Inventors: Ko Hermans, Itsuro Tomatsu, Rintje Pieter Sijbesma, Cornelis Wilhelmus Maria Bastiaansen, Jan Dirk Broer
  • Publication number: 20110104445
    Abstract: The invention relates to a photo-embossing process for the preparation of a polymeric relief structure comprising the steps of: a) coating a substrate with a coating composition comprising one or more radiation-sensitive ingredients and less than 30 wt % polymeric binder material; b) locally treating the coated substrate with electromagnetic radiation having a periodic, non-periodic or random radiation-intensity pattern, forming a latent image, at a temperature below a transition temperature of the coating composition; and c) polymerizing and/or crosslinking the resulting coated substrate, at a temperature above said transition temperature, wherein the transition temperature is a temperature that defines a transition of the coating composition between a state of high viscosity and low viscosity and wherein the coating composition comprises a compound A comprising at least one radiation curable group and a photoinitiator, the coating composition having a transition temperature between 30° C. and 120° C.
    Type: Application
    Filed: April 7, 2009
    Publication date: May 5, 2011
    Inventors: Ko Hermans, Itsuro Tomatsu, Rintje Pieter Sijbesma, Cornelis Wilhelmus Maria Bastiaansen, Jan Dirk Broer
  • Patent number: 7622131
    Abstract: The invention relates to the synthesis of siloxane polymers containing self-complementary quadruple hydrogen bonding groups (4H-units). The resulting polymers show unique new characteristics that result from the reversible, physical interactions between the polysiloxane chains that are based on the (supramolecular) interactions between the 4H-units. The polysiloxanes in this invention show unprecedented bulk material properties and are used as gelling agents for silicone fluids. The resulting gels are clear and display good material properties, while having unparalleled high silicone fluid contents.
    Type: Grant
    Filed: June 9, 2005
    Date of Patent: November 24, 2009
    Assignee: Suprapolix B.V.
    Inventors: Anton Willem Bosman, Hendricus Marie Janssen, Gaby Maria Leonarda Van Gemert, Ronny Mathieu Versteegen, Egbert Willem Meijer, Rintje Pieter Sijbesma
  • Patent number: 6803447
    Abstract: The invention relates to the synthesis of polymers containing self-complementary quadruple hydrogen groups by copolymerizing monomers containing a quadruple hydrogen bonding group with one or more monomers of choice. The resulting polymers show unique new characteristics due to the presence of additional physical interactions between the polymer chains that are based on multiple hydrogen bonding interactions (supramolecular interactions).
    Type: Grant
    Filed: August 21, 2002
    Date of Patent: October 12, 2004
    Assignee: Eutechpark MMP1.28
    Inventors: Henricus Marie Janssen, Gaby Maria Leonarda Van Gemert, Aafke Tessa Ten Cate, Dimphna Johanna Maria Van Beek, Rintje Pieter Sijbesma, Egbert Willem Meijer, Anton Willem Bosman
  • Publication number: 20040034190
    Abstract: The invention relates to the synthesis of polymers containing self-complementary quadruple hydrogen groups by copolymerizing monomers containing a quadruple hydrogen bonding group with one or more monomers of choice. The resulting polymers show unique new characteristics due to the presence of additional physical interactions between the polymer chains that are based on multiple hydrogen bonding interactions (supramolecular interactions).
    Type: Application
    Filed: August 21, 2002
    Publication date: February 19, 2004
    Inventors: Henricus Marie Janssen, Gaby Maria Leonarda Van Gemert, Aafke Tessa Ten Cate, Dimphna Johanna Maria Van Beek, Rintje Pieter Sijbesma, Egbert Willem Meijer, Anton Willem Bosman