Aqueous polyurethaneurea compositions including dispersions and film

Aqueous polyurethaneurea compositions including dispersions and film

  • CN 101,802,040 A
  • Filed: 07/17/2008
  • Published: 08/11/2010
  • Est. Priority Date: 07/20/2007
  • Status: Active Application
First Claim
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1. composition that comprises the polyurethane-urea aqueous dispersion;

  • Described dispersion is included as the polymkeric substance of the reaction product of following component;

    (a) at least a polyvalent alcohol that is selected from polyethers, polyester, polycarbonate and combination thereof, the number-average molecular weight of wherein said polyvalent alcohol is 600-4000;

    (b) polyisocyanates, described polyisocyanates comprises the member who is selected from aromatic diisocyanate, aliphatic vulcabond, cycloaliphatic diisocyanates and combination thereof;

    (c) at least a diol compound, described diol compound comprises;

    (i) can with the hydroxyl of polyisocyanates reaction and (ii) at least one and the time can salifiable hydroxy-acid group, wherein said at least one hydroxy-acid group can not with described polyisocyanates reaction;

    (d) neutralizing agent;

    (e) chainextender;

    (f) end-capping reagent of isocyanate groups, described end-capping reagent comprises at least a monofunctional alcohol;

    WithAt least a tensio-active agent.

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