Unsaturated polyester resin or vinyl ester resin compositions
View Patent ↗The present invention relates to a two-component composition comprising a first component and a second component, wherein the first component being a non-aqueous resin composition comprising an unsaturated polyester resin or vinyl ester resin, a transition metal compound selected from a copper, iron, manganese or titanium compound, a potassium compound, and the resin composition contains less than 0.01 mmol cobalt per kg primary resin system and less than 0.01 mmol vanadium per kg primary resin system; and the second component comprises a peroxide compound.
1. A two-component composition comprising a first component and a second component, wherein the first component is a non-aqueous resin composition comprising an unsaturated polyester resin or vinyl ester resin,
a. a transition metal compound selected from a copper, iron, manganese or titanium compound, and
b. a potassium compound, wherein
the resin composition contains less than 0.01 mmol cobalt per kg primary resin system and less than 0.01 mmol vanadium per kg primary resin system; and wherein
the second component comprises a peroxide compound.
2. The two-component composition according to claim 1 , wherein the resin composition further comprises styrene.
3. The two-component composition according to claim 1 , wherein the resin is an unsaturated polyester resin.
4. The two-component composition according to claim 1 , wherein the copper compound is a copper carboxylate or a copper acetoacetate.
5. The two-component composition according to claim 1 , wherein the iron compound is an iron carboxylate or an iron acetoacetate.
6. The two-component composition according to claim 1 , wherein the manganese compound is a manganese carboxylate or a manganese acetoacetate.
7. The two-component composition according to claim 1 , wherein the titanium compound is a titanium alkoxide or a titanium carboxylate.
8. The two-component composition according to claim 1 , wherein the transition metal is present in an amount of at least 0.05 mmol per kg of primary resin system.
9. The two-component composition according to claim 1 , wherein the potassium compound is a potassium carboxylate.
10. The two-component composition according to claim 1 , wherein the potassium is present in an amount of 0.001 to 2000 mmol/kg of primary resin system.
11. The two-component composition according to claim 1 , wherein the transition metal is present in an amount of 0.05 to 50 mmol/kg of primary resin system.
12. The two-component composition according to claim 1 , wherein a molar ratio between the transition metal and the potassium is from 40:1 to 1:3000.
13. The two-component composition according to claim 1 , wherein the resin composition further comprises an organic base with pK a≧ 10.
14. The two-component composition according to claim 1 , wherein the resin composition further comprises a 1,3 dioxo compound according to formula (1):
wherein X,Y =H, C 1 -C 20 alkyl, C 6 -C 20 aryl, alkylaryl, arylalkyl, part of a polymer chain, OR 3 , NR 3 R 4 ; R 1 , R 2 , R 3 , and R 4 each individually may represent hydrogen (H), or a C 1 -C 20 alkyl, C 6 -C 20 aryl, alkylaryl or arylalkyl group, that each optionally may contain one or more hetero-atoms (e.g. oxygen, phosphor, nitrogen or sulphur atoms) and/or substituents; a ring may be present between R 1 and R 2 , R 1 and R 3 , and/or between R 2 and R 4 ; R 3 and/or R 4 may be part of a polymer chain, may be attached to a polymer chain or may contain a polymerizable group.
15. The two-component composition according to claim 1 , wherein the resin composition further comprises a thiol.
16. The two-component composition according to claim 1 , wherein the resin composition further comprises a radical inhibitor.
17. The two-component composition according to claim 1 , wherein the peroxide is selected from the group of hydroperoxides, perethers and perketones.
18. A non-aqueous resin composition comprising an unsaturated polyester resin or vinyl ester resin, a transition metal compound selected from a copper, iron, manganese or titanium compound, a potassium compound, wherein the resin composition is free of cobalt and vanadium.
19. A process for radically curing a resin composition, which process comprises radically curing the two-component composition according to claim 1 .
20. The process according to claim 19 , wherein curing is effected at a temperature in the range of from −20 to +200 ° C.
21. Cured objects or structural parts obtained from a two component composition according to claim 1 .
22. Cured objects or structural parts obtained from a two component composition obtained by a process according to claim 19 .
23. The two-component composition according to claim 10 , wherein the potassium is present in an amount of 0.1-200 mmol/kg of primary resin system.
24. The two-component composition according to claim 11 , wherein the transition metal is present in an amount of 1-20 mmol/kg of primary resin system.
25. The two-component composition according to claim 13 , wherein the resin composition further comprises an amine having the following formula:
wherein R 1 , R 2 and R 3 each individually may represent hydrogen (H), C 1 -C 20 alkyl, C 6 -C 20 aryl, alkylaryl or arylalkyl group, that each optionally may contain one or more hetero-atoms (e.g. oxygen, phosphor or sulphur atoms) and/or substituents.
26. The two-component composition according to claim 16 , wherein the radical inhibitor is at least one selected from the group consisting of phenolic compounds, stable radicals, catechols and phenothiazines.
27. The two-component composition according to claim 17 , wherein the peroxide is methylethylketone peroxide.
28. The process according to claim 20 , wherein curing is effected at a temperature in the range of from −20 to +100 ° C.
29. The process according to claim 20 , wherein curing is effected at a temperature in the range of from −10 to +60 ° C.