One-part moisture-curable polyurethane composition
The present technology provides a one-part moisture-curable polyurethane composition excellent in long-term adhesion against weather resistance and vibration. According to the embodiment of the present technology, a one-part moisture-curable polyurethane composition includes: a urethane prepolymer having an isocyanate group; a morpholine compound having one morpholine ring; and an ether compound having two dimethylamino groups.
1. A one-part moisture-curable polyurethane composition, comprising:
a urethane prepolymer having an isocyanate group;
a morpholine compound having one morpholine ring;
an ether compound having two dimethylamino groups; and
from 0 to 0.01 parts by mass of a compound having a plurality of morpholine rings in one molecule with respect to 100 parts by mass of the urethane prepolymer.
2. The one-part moisture-curable polyurethane composition according to claim 1 , wherein
a content of the morpholine compound is from 0.02 to 1.6 parts by mass with respect to 100 parts by mass of the urethane prepolymer, and
a content of the ether compound is from 0.002 to 0.16 parts by mass with respect to 100 parts by mass of the urethane prepolymer.
3. The one-part moisture-curable polyurethane composition according to claim 1 , wherein the morpholine compound is dimethylaminoethyl morpholine.
4. The one-part moisture-curable polyurethane composition according to claim 1 , wherein the ether compound is bis(dimethylaminoethyl) ether.
5. The one-part moisture-curable polyurethane composition according to claim 1 , further comprising: at least one organophosphorus compound selected from the group consisting of a phosphite compound, a phosphonite compound, a phosphinite compound, and a phosphine compound.
6. The one-part moisture-curable polyurethane composition according to claim 5 , wherein a content of the organophosphorus compound is from 0.01 to 1.0 part by mass with respect to 100 parts by mass of the urethane prepolymer.
7. The one-part moisture-curable polyurethane composition according to claim 5 , wherein the organophosphorus compound is triphenylphosphine.
8. The one-part moisture-curable polyurethane composition according to claim 6 , wherein the organophosphorus compound is triphenylphosphine.
9. The one-part moisture-curable polyurethane composition according to claim 2 , wherein the morpholine compound is dimethylaminoethyl morpholine.
10. The one-part moisture-curable polyurethane composition according to claim 2 , wherein the ether compound is bis(dimethylaminoethyl) ether.
11. The one-part moisture-curable polyurethane composition according to claim 2 , further comprising: at least one organophosphorus compound selected from the group consisting of a phosphite compound, a phosphonite compound, a phosphinite compound, and a phosphine compound.
12. The one-part moisture-curable polyurethane composition according to claim 11 , wherein a content of the organophosphorus compound is from 0.01 to 1.0 part by mass with respect to 100 parts by mass of the urethane prepolymer.
13. The one-part moisture-curable polyurethane composition according to claim 11 , wherein the organophosphorus compound is triphenylphosphine.
14. The one-part moisture-curable polyurethane composition according to claim 12 , wherein the organophosphorus compound is triphenylphosphine.
15. The one-part moisture-curable polyurethane composition according to claim 3 , wherein the ether compound is bis(dimethylaminoethyl) ether.
16. The one-part moisture-curable polyurethane composition according to claim 3 , further comprising: at least one organophosphorus compound selected from the group consisting of a phosphite compound, a phosphonite compound, a phosphinite compound, and a phosphine compound.
17. The one-part moisture-curable polyurethane composition according to claim 16 , wherein a content of the organophosphorus compound is from 0.01 to 1.0 part by mass with respect to 100 parts by mass of the urethane prepolymer.
18. The one-part moisture-curable polyurethane composition according to claim 16 , wherein the organophosphorus compound is triphenylphosphine.
19. The one-part moisture-curable polyurethane composition according to claim 17 , wherein the organophosphorus compound is triphenylphosphine.
20. The one-part moisture-curable polyurethane composition according to claim 4 , further comprising: at least one organophosphorus compound selected from the group consisting of a phosphite compound, a phosphonite compound, a phosphinite compound, and a phosphine compound.