Patents Assigned to SigmaKalon B.V.
  • Patent number: 8153705
    Abstract: A hydrolysable paint composition comprising organosilyl esters. The organosilyl esters are used in paint formulations which require hydrolysis of one or more of the components of the paint in use. The organosilylesters of the invention may also independently be film forming. The organosilyl ester may be the ester of a carboxylic, sulphonic or phosphoric acid. The binder systems of the invention can be used in paint compositions, such as self-polishing antifouling paints.
    Type: Grant
    Filed: May 7, 2004
    Date of Patent: April 10, 2012
    Assignee: SigmaKalon B.V.
    Inventors: Michel Gillard, Marcel Vos
  • Patent number: 8148446
    Abstract: A method of boosting alkaline hydrolysis or erodability of a hydrolysable paint formulation, the method comprising the step of adding an organosilyl ester to a binder system of a hydrolysable paint formulation. The booster is used in paint formulations which require hydrolysis of one or more of the components of the paint in use. The organosilylesters of the invention may also independently be film forming. The organosilyl ester may be the ester of a carboxylic, sulphonic or phosphoric acid. The binder systems of the invention can be used in paint compositions, such as self-polishing antifouling paints.
    Type: Grant
    Filed: June 3, 2010
    Date of Patent: April 3, 2012
    Assignee: SigmaKalon B.V.
    Inventors: Michel Gillard, Marcel Vos
  • Patent number: 7902313
    Abstract: The present invention provides a process for the preparation of poly(silyl ester)s comprising a structural unit of the formula (I) wherein the process comprises the step of reacting a polyacid of formula (II) with a polyacyloxysilyl derivative of formula (III) while removing the formed acid group(s) of formula R7Z(O)OH (IV). R9Z(O)OH (V), and R8Z(O)OH (VI) from the system.
    Type: Grant
    Filed: March 26, 2004
    Date of Patent: March 8, 2011
    Assignee: SigmaKalon B.V.
    Inventors: Marcel Vos, Mark Plehiers, Michel Gillard