Glass optical fiber having a primary and a secondary coating
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United States of America Patent
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Sep 1, 1987
Grant Date -
N/A
app pub date -
Sep 12, 1984
filing date -
Sep 22, 1983
priority date (Note) -
Expired
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Abstract
Glass optical fiber having a primary coating constructed from two layers (having a total thickness 50-70 .mu.m), in which the first layer on the fiber consists of UV cured acrylate resin having a modulus of elasticity at 25.degree. C. less than or equal to 5 N/mm.sup.2. The second layer is also a UV cured acrylate resin, but has a modulus of elasticity at 25.degree. C. of from 25 to 1500 N/mm.sup.2. The ratio of the thickness of the first layer to the thickness of the second layer is between 0.5 and 2.
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