Ultraviolet radiation-curable coatings for optical fibers and op

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From reactant having at least one -n=c=x group as well as...

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528 49, 528272, 522 42, 522 44, 522 51, 428378, 428383, 4271632, C08G 1800

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active

056398468

ABSTRACT:
Ultraviolet radiation-curable primary and secondary coating compositions for optical fibers are disclosed. The primary coatings comprise a hydrocarbon polyol-based reactively terminated aliphatic urethane oligomer; a hydrocarbon monomer terminated with at least one end group capable of reacting with the terminus of the oligomer; and an optional photoinitiator. The secondary coatings comprise a polyester and/or polyether-based aliphatic urethane reactively terminated oligomer; a hydrocarbonaceous viscosity-adjusting component capable of reacting with the reactive terminus of (I); and an optional photoinitiator. Also disclosed are optical fibers coated with the secondary coating alone or with the primary and secondary coatings of the invention.

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