Claims
- 1. A radiation-curable composition that cures via free-radical polymerization comprising:
about 30 to about 70 wt. % oligomer; about 10 to about 50 wt. % reactive diluent; and about 0.1 to about 40 wt. % adhesion promoter, wherein the cured composition exhibits a modulus of less than about 50 MPa and a dry adhesion in excess of about 50 g force.
- 2. The radiation-curable composition according to claim 1, wherein the adhesion promoter comprises a non-polymerizable adhesion promoter.
- 3. The radiation-curable composition according to claim 2, wherein the cured composition exhibits a dry adhesion in excess of about 100 g force.
- 4. The radiation-curable composition according to claim 2, wherein the non-polymerizable adhesion promoter comprises a silane compound.
- 5. The radiation-curable composition according to claim 4, wherein the silane compound is selected from the group consisting of 3-mercaptopropyl trimethoxy silane, gamma-aminopropyltriethoxysilane, 3-aminopropyl trimethoxy silane, N-(2-aminoethyl)-3-aminopropyl trimethoxy silane, and mixtures thereof.
- 6. The radiation-curable composition according to claim 1, further comprising a colorant.
- 7. The radiation-curable composition according to claim 8, wherein the colorant is a dye.
- 8. The radiation-curable composition according to claim 8, wherein the colorant is a reactive dye or a reactive dye precursor.
- 9. The radiation-curable composition according to claim 6, wherein the colorant is a dye precursor that is substantially-colorless prior to curing of the composition.
- 10. The radiation-curable composition according to claim 9, further comprising a cationic photoinitiator that becomes acidic upon exposure to curing radiation.
- 11. The radiation-curable composition according to claim 9, wherein the dye precursor remains substantially-colorless after exposure to no more than about 1 μW/cm3 for 30 minutes.
- 12. The radiation-curable composition according to claim 1, further comprising a substantially-colorless dye precursor, a non-polymerizable adhesion promoter, and wherein the cured composition exhibits a dry adhesion of at least about 100 g force.
- 13. The radiation-curable composition according to claim 1, wherein the composition cures to 90% RAU in less than 3 seconds.
- 14. The radiation-curable composition according to claim 1, wherein the adhesion to glass is at least 1.
- 15. The radiation-curable composition according to claim 14, wherein the adhesion to stainless steel is at least 1.
- 16. The radiation-curable composition according to claim 15, wherein the adhesion to glass is at least 2.
- 17. A radiation-curable composition that cures via free-radical polymerization comprising:
about 30 to about 70 wt. % oligomer; about 10 to about 50 wt. % reactive diluent; and about 0.1 to about 40 wt. % adhesion promoter, wherein the cured composition exhibits a modulus of at least about 600 MPa and has a glass adhesion rating of at least 1.
- 18. The radiation-curable composition according to claim 17, wherein the adhesion promoter comprises a polymerizable adhesion promoter.
- 19. The radiation-curable composition according to claim 18, wherein the polymerizable adhesion promoter is a component having an acrylate functional group or an acid functional group.
- 20. The radiation-curable composition according to claim 18, wherein the adhesion promoter further comprises a non-polymerizable adhesion promoters.
- 21. The radiation-curable composition according to claim 20, wherein the non-polymerizable adhesion promoter comprises a silane compound.
- 22. The radiation-curable composition according to claim 20, wherein the weight ratio of polymerizable to non-polymerizable adhesion promoter ranges from about 2:1 to about 100:1.
- 23. The radiation-curable composition according to claim 21, wherein the silane compound is a propyl trialkoxy silane.
- 24. The radiation-curable composition according to claim 17, further comprising a colorant.
- 25. The radiation-curable composition according to claim 24, wherein the colorant is a dye.
- 26. The radiation-curable composition according to claim 24, wherein the colorant is a reactive dye or a reactive dye precursor.
- 27. The radiation-curable composition according to claim 24, wherein the colorant is a dye precursor that is substantially-colorless prior to curing of the composition.
- 28. The radiation-curable composition according to claim 27, further comprising a cationic photoinitiator that becomes acidic upon exposure to curing radiation.
- 29. The radiation-curable composition according to claim 17, wherein the dye precursor remains substantially-colorless after exposure to no more than about 1 μW/cm3 for 30 minutes.
- 30. The radiation-curable composition according to claim 17, wherein the composition cures to 90% RAU in no more than 2 seconds.
- 31. The radiation-curable composition according to claim 17, further comprising a substantially-colorless dye precursor, a polymerizable adhesion promoter, and wherein the cured composition exhibits a glass adhesion rating of at least 2.
- 32. The radiation-curable composition according to claim 17, wherein the uncured composition is substantially free of acidic components.
- 33. The radiation-curable composition according to claim 17, wherein the cured composition exhibits a glass adhesion rating of at least 2.
- 34. The radiation-curable composition according to claim 17, wherein the cured composition exhibits a stainless steel adhesion rating of at least 1.
- 35. The radiation-curable composition according to claim 33, wherein the cured composition exhibits a stainless steel adhesion rating of at least 2.
- 36. The radiation-curable composition according to claim 17, wherein at least 20 wt. % of the composition comprises oligomers, reactive diluents or a combination thereof possessing a plurality of radiation-curable functionalities.
- 37. A method for the assembly of optical components comprising:
(a) applying a UV-curable composition which cures via free-radical polymerization between two optical components, the composition comprising:
(i) about 30 to about 70 wt. % oligomer; (ii) about 10 to about 50 wt. % reactive diluent; and (iii) about 0.1 to about 40 wt. % adhesion promoter, (b) exposing the composition to curing radiation, wherein the cured composition exhibits a modulus of less than about 50 MPa and a dry adhesion in excess of about 50 g force.
- 38. The method according to claim 37, wherein the adhesion promoter comprises a non-polymerizable adhesion promoter.
- 39. The method according to claim 37, wherein the cured composition exhibits a dry adhesion in excess of about 100 g force.
- 40. The method according to claim 37 wherein the non-polymerizable adhesion promoter comprises a silane compound.
- 41. The method according to claim 37, further comprising a colorant.
- 42. The method according to claim 41, wherein the colorant is a dye.
- 43. The method according to claim 41, wherein the colorant is a dye precursor.
- 44. The method according to claim 43, wherein the dye precursor is substantially-colorless prior to curing of the composition.
- 45. The method according to claim 44, further comprising a cationic photoinitiator that becomes acidic upon exposure to curing radiation.
- 46. The method according to claim 37, wherein the adhesion to glass is at least 1.
- 47. The method according to claim 46, wherein the adhesion to stainless steel is at least 1.
- 48. The method according to claim 47, wherein the adhesion to glass is at least 2.
- 49. A method for the assembly of optical components comprising:
(a) applying a UV-curable composition which cures via free-radical polymerization between two optical components, the composition comprising:
(i) about 30 to about 70 wt. % oligomer; (ii) about 10 to about 50 wt. % reactive diluent; and (iii) about 0.1 to about 40 wt. % adhesion promoter, (b) exposing the composition to curing radiation, wherein the cured composition exhibits a modulus of at least about 600 MPa and has an adhesion rating of at least 1.
- 50. A method for the assembly of optical components comprising:
(a) applying a UV-curable composition which cures via free-radical polymerization between two optical components, the composition comprising:
an oligomer; a reactive diluent; and a substantially-colorless dye precursor, (b) exposing the composition to curing radiation, wherein the composition becomes colored upon exposure to curing radiation.
- 51. An assembly of optical components prepared using a composition comprising:
about 30 to about 70 wt. % oligomer; about 10 to about 50 wt. % reactive diluent; and about 0.1 to about 40 wt. % adhesion promoter, wherein the cured composition exhibits a modulus of at least about 600 MPa and has an adhesion rating of at least 1.
CROSS-REFERENCE TO RELATED PATENT APPLICATIONS
[0001] This patent application claims the benefit of U.S. Provisional Patent Application No. 60/335,175, filed Oct. 31, 2001, which is incorporated by reference.
Provisional Applications (1)
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Number |
Date |
Country |
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60335175 |
Oct 2001 |
US |