Polyurethane adhesive

Polyurethane adhesive

  • CN 1,316,480 A
  • Filed: 04/05/2000
  • Published: 10/10/2001
  • Est. Priority Date: 04/05/2000
  • Status: Abandoned Application
First Claim
Patent Images

1. polyurethane adhesive, it is characterized in that the weight ratio of host and solidifying agent is:

  • host;

    solidifying agent=100;

    1-10 by the two component adhesive that host and solidifying agent are formed;

    The composition of described host and be that 100 weight percentage is;

    polyurethane prepolymer (hydroxyl value is 5-60mgKOH/g) 10-80%, SBS thermoplastic elastomer 0-50%, organic solvent 10-85% with moiety gross weight sum;

    Described solidifying agent for the isocyanic acid root be 5-12%, tolylene diisocyanate and polyvalent alcohol be in the affixture of the ratio reaction of [NCO]/[OH]<

    2, and free TDI content is not more than 0.1%;

    Organic solvent is one or more in ester class, ketone, the aromatic hydrocarbon solvent.

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