Chemistry: electrical and wave energy – Apparatus – Coating – forming or etching by sputtering
Patent
1983-11-10
1985-06-11
Kendell, Lorraine T.
Chemistry: electrical and wave energy
Apparatus
Coating, forming or etching by sputtering
20415919, 350 9623, 427 541, 427165, 427331, 4274072, 4274073, 428375, 428392, 525920, G02B 516
Patent
active
045224650
ABSTRACT:
Buffer-coated and overcoated optical glass fiber is disclosed in which the topcoat has the high strength and high tensile modulus combined with good elongation and solvent resistance associated with extruded jacket coatings, but which is applied by ordinary coating procedures and cured by exposure to ultraviolet radiation. The coating compositions which enable this to be achieved comprise 30% to about 80% of linear diethylenic polyester polyurethanes which are the linear polyurethane reaction product of an organic diisocyanate with hydroxy-functional polyester formed by reacting a diol, such as ethylene glycol, with certain dicarboxylic acids, such as adipic acid. This polyurethane is end capped with a monoethylenically unsaturated monohydric alcohol. At least 50% of this diethylenic polyester polyurethane is combined with at least 5% of liquid diethylenic diester of a diglycidyl ether of a bisphenol, and at least 5% of liquid monoethylenically unsaturated monomer having a glass transition temperature above about 55.degree. C., these proportions being based on total reactive components.
REFERENCES:
patent: 4264752 (1981-04-01), Watson, Jr.
patent: 4319811 (1982-03-01), Tu et al.
patent: 4348427 (1982-09-01), Priola et al.
patent: 4472019 (1984-09-01), Bishop et al.
patent: 4472021 (1984-09-01), Ansel et al.
Bishop Timothy E.
Pasternack George
DeSoto, Inc.
Kendell Lorraine T.
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