Formulation of UV-curable coatings for optical fiber for a fast cure
AssigneeAlcatel
InventorsIgor V. Khudyakov, Michael B. Purvis, Robert J. Overton
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Abstract
A fast-curing, low viscosity composition for coating an optical waveguide, more specifically, an optical fiber, and optical fibers coated therewith are disclosed. The coating composition is a radiation curable composition containing: a radiation curable oligomer, a free radical photoinitiator, and a mixture of reactive diluents including a low molecular weight (meth)acrylate having tri-, tetra-, penta- or higher functionality.
Claims17
An optical waveguide coated with a liquid, radiation-curable composition, said composition comprising (a) a radiation-curable oligomer, (b) a free radical photoinitiator, and (c) a mixture of reactive diluents comprising (i) at least one mono- or difunctional reactive diluent and (ii) at least one polyfunctional reactive diluent having at least four (meth)acrylate functionalities.
An optical waveguide coated with a cured composition, said cured composition composing (a) a radiation-curable oligomer, (b) a free radical photoinitiator, and (c) a mixture of reactive diluents comprising (i) at least one mono- or difunctional reactive diluent and (ii) at least one polyfunctional reactive diluent having at least four (meth)acrylate functionalities.
A method of coating an optical waveguide with a liquid, radiation-curable composition, said method comprising the steps of:
- (a) contacting said optical waveguide with said liquid, radiation-curable composition;
- and
- (b) curing said liquid, radiation-curable composition,
- wherein said liquid, radiation-curable composition comprises (a) a radiation-curable oligomer, (b) a free radical photoinitiator, and (c) a mixture of reactive diluents comprising (i) at least one mono- or difunctional reactive diluent and (ii) at least one polyfunctional reactive diluent having at least four (meth)acrylate functionalities.
Dependencies are inferred from the claim text.