Solvent borne polyurethane composition

Solvent borne polyurethane composition

  • CN 101,223,203 B
  • Filed: 07/14/2006
  • Issued: 08/14/2013
  • Est. Priority Date: 07/14/2005
  • Status: Active Grant
First Claim
Patent Images

1. solvent borne polyurethane composition, described composition comprises:

  • I) 15 to 50wt% at least a can not film forming urethane A, its weight-average molecular weight Mw is in 5,500 to 22,000g/mol scope;

    II) but 85 to 50wt% at least a film forming urethane B, its weight-average molecular weight Mw is in 32,000 to 60,000g/mol scope;

    Wherein, I)+II) add up to 100%;

    WithIII) a kind of liquid medium;

    Wherein, described liquid medium comprises≤

    water of 20wt%;

    But described film forming urethane can form bonding film refer to remove major part or all liquid medium from polyurethane composition after;

    Even described can not film forming urethane refer under without any the situation of liquid medium still very sticking and be the batter shape.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×