The present invention provides a curable composition which has a high recovery ratio, a high creep resistance, a practical curability and storage stability. The present invention relates to a curable composition comprising a reactive silicon group containing organic polymer (A) and a carboxylic acid
The present invention provides a curable composition which has a high recovery ratio, a high creep resistance, a practical curability and storage stability. The present invention relates to a curable composition comprising a reactive silicon group containing organic polymer (A) and a carboxylic acid (B), wherein the composition comprises (I), as the carboxylic acid (B), a carboxylic acid (C) in which the carbon adjacent to the carbonyl group is a quaternary carbon atoms and/or the composition comprises (II) a metal carboxylate (D) formed between a carboxylic acid in which the carbon atoms adjacent to the carbonyl group is a quaternary carbon atoms and a metal atom of 208 or less in atomic weight.
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The invention claimed is: 1. A curable composition comprising: (1) a reactive silicon group-containing organic polymer (A) which is one or more polymers selected from the group consisting of a polyoxyalkylene based polymer, a saturated hydrocarbon based polymer and a (meth)acrylate based polymer, a
The invention claimed is: 1. A curable composition comprising: (1) a reactive silicon group-containing organic polymer (A) which is one or more polymers selected from the group consisting of a polyoxyalkylene based polymer, a saturated hydrocarbon based polymer and a (meth)acrylate based polymer, and (2) a carboxylic acid (B) which is a carboxylic acid (C) in which the carbon atom adjacent to the carbonyl group is a quaternary carbon atom, wherein a metal carboxylate formed between a carboxylic acid and a metal atom of more than 208 in atomic weight is not contained. 2. The curable composition according to claim 1, comprising no metal carboxylate. 3. The curable composition according to claim 1, comprising a nonorganotin metal carboxylate. 4. The curable composition according to claim 3, in which the metal carboxylate is a tin carboxylate. 5. The curable composition according to claim 1, in which the organic polymer (A) has an average molecular weight of 500 to 50,000, and has on average, at the ends of the main chain and/or on the side chains, one or more silicon-containing groups per molecule represented by the general formula (1): wherein R1 and R2 are each independently an alkyl group having 1 to 20 carbon atoms, an aryl group having 6 to 20 carbon atoms, an aralkyl group having 7 to 20 carbon atoms or a triorganosiloxy group represented by (R')3SiO-where each R is independently a substituted or unsubstituted hydrocarbon group having 1 to 20 carbon atoms); each X is independently a hydroxyl or a hydrolyzable group; a is any one of 0, 1, 2, and 3, b is any one of 0, 1, and 2, though both a and b are not zero simultaneously; and m is 0 or an integer of 1 to 19. 6. The curable composition according to claim 5, in which X is an alkoxy group. 7. The curable composition according to claim 1, in which the organic polymer (A) is a polyoxypropylene based polymer. 8. The curable composition according to claim 1, comprising an amine compound (E). 9. A one-component curable composition comprising the curable composition according to claim 1. 10. An adhesive comprising the curable composition according to claim 1. 11. A sealant comprising the curable composition according to claim 1. 12. A curable composition comprising: (1) a reactive silicon group-containing organic polymer (A) which is one or more polymers selected from the group consisting of a polyoxyalkylene based polymer, a saturated hydrocarbon based polymer and a (meth)acrylate based polymer, (2) a carboxylic acid (B) which is a carboxylic acid (C) in which the carbon atom adjacent to the carbonyl group is a quaternary carbon atom, and (3) a nonorganotin metal carboxylate (D) composed of one or more selected from the group consisting of tin carboxylates, potassium carboxylates, calcium carboxylates, titanium carboxylates, vanadium carboxylates, manganese carboxylates, iron carboxylates, cobalt carboxylates, nickel carboxylates, zinc carboxylates, zirconium carboxylates and niobium carboxylates. 13. The curable composition according to claim 12, in which the metal carboxylate is composed of one or more selected from the group consisting of tin carboxylates, titanium carboxylates, iron carboxylates and zirconium carboxylates. 14. The curable composition according to claim 13, in which the metal carboxylate is a tin carboxylate. 15. The curable composition according to claim 12, in which the organic polymer (A) has an average molecular weight of 500 to 50,000, and has on average, at the ends of the main chain and/or on the side chains, one or more silicon-containing groups per molecule represented by the general formula (1): wherein R1 and R2 are each independently an alkyl group having 1 to 20 carbon atoms, an aryl group having 6 to 20 carbon atoms, an aralkyl group having 7 to 20 carbon atoms or a triorganosiloxy group represented by (R')3SiO-where each R is independently a substituted or unsubstituted hydrocarbon group having 1 to 20 carbon atoms); each X is independently a hydroxyl or a hydrolyzable group; a is any one of 0, 1, 2, and 3, b is any one of 0, 1, and 2, though both a and b are not zero simultaneously; and m is 0 or an integer of 1 to 19. 16. The curable composition according to claim 15, in which X is an alkoxy group. 17. The curable composition according to claim 12, in which the organic polymer (A) is a polyoxypropylene based polymer. 18. The curable composition according to claim 12, comprising an amine compound (B). 19. A one-component curable composition comprising the curable composition according to claim 12. 20. An adhesive comprising the curable composition according to claim 12. 21. A sealant comprising the curable composition according to claim 12. 22. The curable composition according to claim 12, in which the nonorganotin metal carboxylate (D) is composed of one or more selected from the group consisting of tin carboxylates, potassium carboxylates, calcium carboxylates, titanium carboxylates, vanadium carboxylates,. manganese carboxylates, iron carboxylates, cobalt carboxylates, nickel carboxylates and zirconium carboxylates. 23. A curable composition comprising: (1) a reactive silicon group-containing organic polymer (A) which is one or more polymers selected from the group consisting of a polyoxyalkylene based polymer, a saturated hydrocarbon based polymer and a (meth)acrylate based polymer, (2) a carboxylic acid (B), and (3) a nonorganotin metal carboxylate (D) composed of one or more selected from the group consisting of tin carboxylates, potassium carboxylates, calcium carboxylates, titanium carboxylates, vanadium carboxylates, manganese carboxylates, iron carboxylates, cobalt carboxylates, nickel carboxylates and zirconium carboxylates, wherein the carbon atom adjacent to the carbonyl group of the metal carboxylate (D) is a quaternary carbon atom. 24. The curable composition according to claim 23, in which the metal carboxylate is composed of one or more selected from the group consisting of tin carboxylates, titanium carboxylates, iron carboxylates and zirconium carboxylates. 25. The curable composition according to claim 24, in which the metal carboxylate is a tin carboxylate. 26. The curable composition according to claim 23, in which the organic polymer (A) has an average molecular weight of 500 to 50,000, and has on average, at the ends of the main chain and/or on the side chains, one or more silicon-containing groups per molecule represented by the general formula (1): wherein R1and R2 are each independently an alkyl group having 1 to 20 carbon atoms, an aryl group having 6 to 20 carbon atoms, an aralkyl group having 7 to 20 carbon atoms or a triorganosiloxy group represented by (R')3SiO-where each R is independently a substituted or unsubstituted hydrocarbon group having 1 to 20 carbon atoms); each X is independently a hydroxyl or a hydrolyzable group; a is any one of 0, 1, 2, and 3, b is any one of 0, 1, and 2, though both a and b are not zero simultaneously; and m is 0 or an integer of 1 to 19. 27. The curable composition according to claim 26, in which X is an alkoxy group. 28. The curable composition according to claim 23, in which the organic polymer (A) is a polyoxypropylene based polymer. 29. The curable composition according to claim 23, comprising an amine compound (E). 30. A one-component curable composition comprising the curable composition according to claim 23. 31. An adhesive comprising the curable composition according to claim 23. 32. A sealant comprising the curable composition according to claim 23.
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