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US 5,689,601 AGranted
Water blocking optical cable reinforcement
AssigneeOwens Corning Fiberglas Technology, Inc.
InventorsThomas P. Hager, David L. Molnar, Diane M. Hulett
Life of this patent
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AssigneeOwens Corning Fiberglas Technology, Inc.
InventorsThomas P. Hager, David L. Molnar, Diane M. Hulett
Estimating the term…
An optical cable reinforcement in the form of glass fiber strands 30! having a first coating 32! of a binding agent such as a latex mixture and a second coating 34! of particles 36! of a water blocking agent such as a polyacrylate salt. The particles 36! of water blocking agent are adhered to the glass fiber strands 30! by the binding agent without the binding agent entirely coating the particles of water blocking agent. The unoccluded surface areas of water blocking agent thus provided serve to rapidly absorb/desorb water and protect the optical cable from moisture. A unique powder coating station 60! is used to apply the particles 36! of water blocking agent to glass fiber strands 30! which have been coated with wet binding agent so that the proper adherence of the particles 36! of water blocking agent without complete embodiment, is obtained.
An optical cable comprising:
An optical cable reinforcement comprising a glass fiber reinforcing material of glass fiber strands having thereon a first coating containing a binding agent including a member selected from the group consisting of latex polymers, latex copolymers, and mixtures thereof, and a second coating containing particles of a water blocking agent adhered to said glass fiber strands by said binding agent without said binding agent entirely coating said particles.
A method of making an optical cable reinforcement comprising:
Dependencies are inferred from the claim text.