Claims
- 1. A polymerizable system comprising:
(a) an organoborane; (b) at least one polymerizable monomer; and (c) a work-life extending agent according to the general formula: 33wherein R40 is CH2=or alkenyl, Z1 and Z2 are independently O, N—R41 or S, and R41, R42 and R43 are independently H, alkyl, aryl or cycloalkyl, provided that when Z1 and Z2 are O, R42 and R43 are independently alkyl, aryl or cycloalkyl.
- 2. The polymerizable system of claim 1 wherein R42 and R43 are butyl, and Z1 and Z2 are O.
- 3. The polymerizable system of claim 1 wherein R40 is vinyl.
- 4. A polymerizable system comprising:
(a) an organoborane; (b) at least one polymerizable monomer; and (c) at least 2.5 weight percent of itaconic acid, itaconic acid derivatives or combinations thereof.
- 5. The polymerizable system of claim 4, wherein the itaconic acid derivative comprises itaconic mono(butyl) ester.
- 6. The polymerizable system of claim 4, wherein the itaconic acid derivative comprises itaconic di(butyl) ester.
- 7. The polymerizable system of claim 1 further comprising a decomplexer.
- 8. The polymerizable system of claim 7, wherein the organoborane is complexed with a complexing agent comprising a material selected from amines, amidines, hydroxides, alkoxides, and combinations thereof.
- 9. The polymerizable system of claim 1, wherein the at least one polymerizable monomer comprises a material selected from (meth)acrylates, (meth)acrylamides, and mixtures thereof.
- 10. The polymerizable system of claim 9, wherein the at least one polymerizable monomer comprises a material selected from (meth)acrylic esters of monohydric alcohols and (meth)acrylic acid esters of polyhydric alcohols.
- 11. The polymerizable system of claim 1 further comprising a vinyl aromatic compound according to general formula:
- 12. The polymerizable system of claim 1, wherein the polymerizable system retains at least 85% or greater overlap shear strength after an extended open time.
- 13. The polymerizable system of claim 12 wherein the extended open time is between about 7 minutes and 20 minutes.
- 14. The polymerizable system of claim 1 further comprising a core-shell polymer.
- 15. The polymerizable system of claim 1 further comprising a reactive diluent.
- 16. A polymerizable system comprising
(a) a first part comprising an organoborane; and (b) a second part comprising a polymerizable monomer;
wherein at least one of the first part or the second part further comprises a work- life extending agent according to the general formula: 35wherein R40 is CH2=or alkenyl, Z1 and Z2 are independently O, N—R41 or S, and R41, R42 and R43 are independently H, alkyl, aryl or cycloalkyl, provided that when Z1 and Z2 are O, R42 and R43 are independently alkyl, aryl or cycloalkyl.
- 17. The polymerizable system of claim 16, wherein the work-life extending agent is included in the second part.
- 18. The polymerizable system of claim 16 wherein the organoborane is complexed with an amine.
- 19. The polymerizable system of claim 16, wherein the work-life extending agent is itaconic di(butyl) ester, and the itaconic di(butyl) ester is included in the second part.
- 20. The polymerizable system of claim 16, wherein the organoborane is complexed with an amine and the second part further comprises a decomplexer.
- 21. The polymerizable system of claim 16, wherein the first part and the second part are combined in a whole number ratio of about 1:10 to about 1:1.
- 22. A polymerizable system comprising:
(a) an organoborane; (b) at least one polymerizable monomer; and (c) about 8 weight percent itaconic di(butyl) ester.
- 23. A method of increasing the work-life of a polymerizable system comprising an organoborane and a polymerizable monomer, the method comprising adding itaconic acid, itaconic acid derivatives, or a combination thereof in an amount sufficient to provide an initial concentration of the itaconic acid, one of itaconic acid derivatives, or a combination thereof of at least 2.5 weight percent of the polymerizable system.
- 24. A polymerizable system comprising:
(a) an organoborane; (b) a complexing agent comprising a material selected from amines, amidines, hydroxides, alkoxides, and combinations thereof; (c) at least one polymerizable monomer; and (d) a work-life extending agent according to the general formula: 36wherein R40 is CH2=or alkenyl, R42 is H or alkyl, R43 is H, and Z1 and Z2 are O and the ratio of amine-, amidine-, hydroxide- or alkoxide-reactive groups in the work-life extending agent to amine, amidine, hydroxide or alkoxide groups in the complexing agent(s) is over 3.0:1.0.
- 25. A polymerizable system comprising:
(a) an organoborane; (b) at least one polymerizable monomer; and (c) a work-life extending agent according to the general formula: 37wherein R44 is CH2=or alkenyl and X is S or N—R50, where R50 is hydrogen, alkyl, aryl or cycloalkyl.
- 26. A polymerizable system comprising:
(a) an organoborane; (b) a complexing agent comprising a material selected from amines, amidines, hydroxides, alkoxides, and combinations thereof; (c) at least one polymerizable monomer; and (d) a work-life extending agent according to the general formula: 38wherein R44 is CH2=or alkenyl and X is O and ratio of anhydride groups in the work-life extending agent to amine, amidine, hydroxide or alkoxide groups in the complexing agent(s) is over 3.0:1.0.
Parent Case Info
[0001] This application claims the benefit of U.S. Provisional Application Number 60/270,221, filed Feb. 21, 2001.
Provisional Applications (1)
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Number |
Date |
Country |
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60270221 |
Feb 2001 |
US |