Claims
- 1. A composition comprising:
a. a first urethane (meth)acrylate; and b. a second urethane (meth)acrylate; wherein said first and second urethane (meth)acrylates are different and wherein said composition has a Tg≧50° C. and an elongation≧15 percent.
- 2. The composition of claim 1, wherein said Tg≧85° C.
- 3. The composition of claim 1, wherein said elongation is ≧35 percent.
- 4. The composition of claim 1, wherein said first urethane (meth)acrylate comprises the reaction product of methylene bis(4-cyclohexyl isocyanate), bisphenol A and hydroxyethylacrylate.
- 5. The composition of claim 4, wherein the bisphenol A is used in conjunction with one or more additional polyols.
- 6. The composition of claim 1, wherein said first urethane (meth)acrylate has one or more cyclic ring structures per molecule.
- 7. The composition of claim 6, wherein said first urethane (meth)acrylate has three or more cyclic ring structures per molecule.
- 8. The composition of claim 1, wherein said second urethane (meth)acrylate comprises the reaction product of tetramethylxylene diisocyanate, a polyol having an Mn of greater than 2000 daltons, and hydroxylethylacrylate.
- 9. The composition of claim 8, wherein said polyol comprises polytetramethylene glycol and trimethylolpropane.
- 10. The composition of claim 1, further comprising one or more reactive monomers.
- 11. The composition of claim 10, wherein at least one of the reactive monomers is N-vinylpyrrolidone.
- 12. The composition of claim 10, wherein at least one of the reactive monomers is monofunctional.
- 13. The composition of claim 10, wherein the reactive monomers comprise isobornyl acrylate, N-vinylpyrrolidone and pentaerythritol triacrylate.
- 14. A glass fiber coated with the composition of claim 1.
- 15. An optical fiber ribbon array containing a plurality of glass fibers bonded together in a matrix material, wherein the matrix material is a cured composition of claim 1.
- 16. The array of claim 15, wherein one or more of the glass fibers are also coated with a composition comprising:
a. a first urethane (meth)acrylate; and b. a second urethane (meth)acrylate; wherein said first and second urethane (meth)acrylates are different and wherein said composition has a Tg≧50° C. and an elongation ≧15 percent.
Parent Case Info
[0001] This application claims priority to provisional application No. 60/343,074, filed Dec. 20, 2001.
Provisional Applications (1)
|
Number |
Date |
Country |
|
60343074 |
Dec 2001 |
US |