Radiation curable compositions for coating optical fiber with enhanced high-speed processability
AssigneeDsm IP Assets B.V.
InventorJohan Franz Gradus Antonius Jansen
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Abstract
Radiation curable compositions for coating optical fibers are disclosed herein. In an embodiment, a radiation curable composition includes a reactive oligomer component, wherein a portion of the polymerizable groups of the reactive oligomer component include methacrylate groups; a reactive diluent monomer component, wherein a portion of the polymerizable groups of the reactive diluent monomer component include acrylate groups, acrylamide groups, or N-vinyl amide groups, or combinations thereof; a photoinitiator component, and an optional additive component. Also described are methods of coating the radiation curable compositions elsewhere described, and the fiber optic coatings and cables resulting therefrom.
Claims30
A radiation curable composition for coating an optical fiber comprising:
- a reactive oligomer component comprising at least one reactive urethane oligomer comprising a polymerizable group;
- wherein at least 20% of a molar fraction of the polymerizable groups in the reactive oligomer component consist of methacrylate groups;
- a reactive diluent monomer component comprising reactive diluent monomers having at least one polymerizable group that is able to (co)polymerize with the polymerizable group(s) of the reactive oligomer component;
- wherein the reactive diluent monomer component comprises a monofunctional acrylate monomer;
- wherein at least 50% of a molar fraction of the polymerizable groups of the reactive diluent monomer component consist of acrylate groups, acrylamide groups, N-vinyl amide groups, or mixtures thereof;
- a photoinitiator component;
- and
- optionally, an additive component.
The radiation curable composition of the previous claim, wherein the reactive urethane oligomer comprises a reaction product of
- a polyol compound;
- a diisocyanate compound;
- and
- a hydroxyl-functional compound having at least one methacryloyl group.
Dependencies are inferred from the claim text.