Curable composition
An object of the present invention is to provide a curable composition that provides high hardness and can be used in adhesives and coating agents. This object can be achieved by a curable composition containing: 100 parts by weight of a reactive silyl group-containing organic polymer (A) that has a number average molecular weight of 2,000 to 6,000 and contains 1.3 to 5 reactive silyl groups per molecule; and 0 to 40 parts by weight of a plasticizer (C). This curable composition is suitable for flooring adhesives and tile adhesives, which require high hardness.
1. A curable composition, comprising:
100 parts by weight of a reactive silyl group-containing organic polymer (A) that has a number average molecular weight of 2,000 to 6,000 and contains 2.1 to 3 reactive silyl groups per molecule; and
0 to 40 parts by weight of a plasticizer (C).
2. The curable composition according to claim 1 ,
wherein the backbone skeleton of the reactive silyl group-containing organic polymer (A) is a polyoxyalkylene polymer.
3. The curable composition according to claim 1 ,
wherein the backbone structure of the reactive silyl group-containing organic polymer (A) has at least one branch.
4. The curable composition according to claim 1 , which does not comprise the plasticizer (C).
5. An adhesive, comprising the curable composition according to claim 1 .
6. A flooring adhesive, comprising the curable composition according to claim 1 .
7. A tile adhesive, comprising the curable composition according to claim 1 .
8. A coating agent, obtained by curing the curable composition according to claim 1 .
9. A cured product, obtained by curing the curable composition according to claim 1 .
10. A curable composition, comprising:
100 parts by weight of a reactive silyl group-containing organic polymer (A) that has a number average molecular weight of 2,000 to 6,000 and contains 1.3 to 5 reactive silyl groups per molecule;
a reactive silyl group-containing organic polymer (B) that has a number average molecular weight of 8,000 to 50,000 and contains 1.3 to 5 reactive silyl groups per molecule; and
0 to 40 parts by weight of a plasticizer (C).
11. The curable composition according to claim 10 ,
wherein the backbone skeleton of the reactive silyl group-containing organic polymer (B) is a polyoxyalkylene polymer.
12. The curable composition according to claim 10 ,
wherein the backbone structure of the reactive silyl group-containing organic polymer (A) has at least one branch.
13. The curable composition according to claim 10 ,
wherein the reactive silyl group-containing organic polymer (A) contains 2 to 5 reactive silyl groups per molecule.
14. The curable composition according to claim 10 , which does not comprise the plasticizer (C).
15. An adhesive, comprising the curable composition according to claim 10 .
16. A flooring adhesive, comprising the curable composition according to claim 10 .
17. A tile adhesive, comprising the curable composition according to claim 10 .
18. A coating agent, obtained by curing the curable composition according to claim 10 .
19. A cured product, obtained by curing the curable composition according to claim 10 .
20. The curable composition according to claim 10 ,
wherein the backbone skeleton of the reactive silyl group-containing organic polymer (A) is a polyoxyalkylene polymer.