Patents by Inventor Gerardus Cornslis OVERBEEK

Gerardus Cornslis OVERBEEK 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).

  • Water-borne crosslinkable block copolymers obtained using raft
    Patent number: 9567476
    Abstract: There is disclosed a process for obtaining a water-borne crosslinkable composition comprising a block copolymer comprising at least blocks [A]x[B]y (where x is an integer from 3 to 80 (inc.), where y is an integer ?10 and where y>x) and a polymer P, the block copolymer-polymer having an acid value ?150 mg KOH per g of block copolymer-polymer, where at least block [A] and [B] is obtained by a controlled radical polymerisation of at least one ethylenically unsaturated monomer via a reversible addition-fragmentation chain transfer (RAFT) mechanism in solution in the presence of a control agent and a source of free radicals; and where polymer P is obtained in the presence of blocks [A]x[B]y by an emulsion polymerisation process.
    Type: Grant
    Filed: February 4, 2013
    Date of Patent: February 14, 2017
    Assignee: DSM IP ASSETS B.V.
    Inventors: Michael Arnoldus Jacobus Schellekens, Tijs Nabuurs, John Geurts, Gerardus Cornslis Overbeek
  • WATER-BORNE CROSSLINKABLE BLOCK COPOLYMERS OBTAINED USING RAFT
    Publication number: 20130150528
    Abstract: There is disclosed a process for obtaining a water-borne crosslinkable composition comprising a block copolymer comprising at least blocks [A]x[B]y (where x is an integer from 3 to 80 (inc.), where y is an integer ?10 and where y>x) and a polymer P, the block copolymer-polymer having an acid value ?150 mg KOH per g of block copolymer-polymer, where at least block [A] and [B] is obtained by a controlled radical polymerisation of at least one ethylenically unsaturated monomer via a reversible addition-fragmentation chain transfer (RAFT) mechanism in solution in the presence of a control agent and a source of free radicals; and where polymer P is obtained in the presence of blocks [A]x[B]y by an emulsion polymerisation process.
    Type: Application
    Filed: February 4, 2013
    Publication date: June 13, 2013
    Applicant: DSM IP ASSETS B.V.
    Inventors: Michael Arnoldus Jacobus SCHELLEKENS, Tijs NABUURS, John GEURTS, Gerardus Cornslis OVERBEEK