Glass manufacturing – Processes – Forming product or preform from molten glass
Patent
1990-05-29
1992-04-14
Fisher, Richard V.
Glass manufacturing
Processes
Forming product or preform from molten glass
65 602, 65 603, C03C 2502
Patent
active
051044331
ABSTRACT:
Methods are provided for making an optical fiber transmission medium which includes optical fiber (21) provided with a coating system (31) typically including two layers each of a different coating material. An inner layer (32) of a first coating material is called the primary coating and an outer layer is termed the secondary. In order to achieve desired performance characteristics, performance is related to properties of a coating system. The coating materials have well defined moduli and the second coating material has an elongation which is substantially less than in prior secondary coating materials. Adhesion levels which are optimized rather than maximized are substantially stable with respect to time. Curing of the coating materials may be accomplished simultaneously or in tandem with the application separately of the coating materials.
REFERENCES:
patent: 4105284 (1978-08-01), Olshansky
patent: 4324575 (1982-04-01), Levy
patent: 4474830 (1984-10-01), Taylor
patent: 4765712 (1988-08-01), Bohannon et al.
patent: 4913859 (1990-04-01), Overton et al.
DeSoto Product Information Sheets for DeSolite.RTM. Secondary Coating 950-103, Apr. 1989, 4 pages.
Chapin J. Thomas
Hardee, Jr. Addison G.
Larsen-Moss Lisa M.
Leshe Charles M.
Overton Bob J.
AT&T Bell Laboratories
Bruckner John J.
Fisher Richard V.
Somers E. W.
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