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US 2013/0296484 A1Published application
Adhesive Derived from Dimeric Fatty Acid or Dimeric Fatty Diol
AssigneeCroda International PLC
InventorsJeffrey Thomas Carter, Renee van Schijndel
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Abstract
An adhesive containing polyisocyanate and a polyol containing at least one dimer fatty acid and/or dimer fatty diol. The adhesive is particularly suitable for use on wood.
Claims21
1-22. (canceled)
A moisture-curable adhesive, comprising:
- i) an isocyanate content in the range from 10 to 40 wt.%, relative to the weight of the adhesive;
- ii) a number average molecular weight in the range from 600 to 2,000;
- and
- iii) a viscosity at 23° C. in the range from 2 to 40 Pa.s;
- wherein the adhesive, after curing, comprises:
- a) a lap shear adhesion value of greater than 6 MPa;
- b) a creep rupture adhesion value at a stress value of 8 MPa of greater than 500,000 seconds in air at 23° C.;
- c) a creep rupture adhesion value at a stress value of 8 MPa of greater than 50 seconds in water at 23° C.;
- or
- d) a creep rupture adhesion value at a stress value of 8 MPa of greater than 1,000 seconds in water at 90° C.
7 more elements
Dependencies are inferred from the claim text.