Aqueous silicon dispersions, formulations, particularly of paints containing them and one of their methods for the preparation thereof

Aqueous silicon dispersions, formulations, particularly of paints containing them and one of their methods for the preparation thereof

  • CN 101,137,721 A
  • Filed: 01/27/2006
  • Published: 03/05/2008
  • Est. Priority Date: 02/07/2005
  • Status: Active Application
First Claim
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1. aqueous silicon dispersions, it especially can be used in the paint formulation agent, and this aqueous silicon dispersions is made up of following material basically:

  • A) at least a organopolysiloxane resin (A), but it contains the condensation hydroxyl substituent that the amount with at least 0.05 weight % exists;

    B) at least a epoxy functional organo-siloxanes (B);

    C) at least a water soluble hydroxy alkyl aminosilane (C), this silane exists with the monomer whose form of general formula (I) and/or with the condensed forms of oligomeric typeR 1-[Si]-[OH] 3(I)Wherein;

    -R 1Be aminoalkyl group or general formula with 1 to 6 carbon atom H 2N-(CH 2) xR 2-(CH 2) z-group;

    R wherein 2Represent O, S ,-NH-or NH-CH 2-CH 2-NH-and x 〉

    =2, z 〉

    =2;

    D) at least a tensio-active agent (S);

    E) randomly, at least a biocide (D);

    F) water;

    WithG) randomly, the polycondensation catalyst of significant quantity;

    Described aqueous silicon dispersions does not contain and has alkoxyl group-silane of the hydrolyzable functional group of OR type, and wherein R is C 1-C 20Aliphatic hydrocarbyl.

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