US5074643A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Article comprising a nonpigmented cured color coating
Assignee: Furukawa Electric North America Inc
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Filing: 1989-12-13
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Granted: 1991-12-24
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Expires: 2009-12-13
Abstract
Abstract An optical fiber (20) which includes at least one coating layer is provided with a color identification system which is nonpigmented. In a preferred embodiment, the optical fiber includes two layers (26,28) of coating materials. Applied over the outer one (28) of the two coating layers is a color identification layer (30). The color identification layer may comprise an oligomeric composition of matter and a polymeric dye. For those instances when relatively high hiding power is required, such as when optical fiber has been provided with a hermetic coating, the color identification system also includes an opacifier. In an alternative embodiment, the outer or secondary coating layer is a composition of matter which comprises the opacifier and the polymeric dye.
Inventors
- 👤 James R. Petisce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:27
CPC Classifications
G; G02; G02B; G02B6/00; C; C03; C03C; C03C25/00; C03C25/10; C03C25/104; C03C25/465; C03C25/475; G02B6/44; G02B6/4479; G02B6/4482
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
53 words
An elongated communication transmission medium having a color identification system, said elongated communication transmission medium comprising: a substrate which comprises an elongated communication transmission medium; and a coating system which has been applied to said substrate, said coating system comprising: a cured coating composition; and a color identifier which includes a polymeric dye.
Claim 2
Dependent Claim
53 words
An elongated communication transmission medium having a color identification system, said elongated communication transmission medium comprising: a substrate which comprises an elongated communication transmission medium; and a coating system which has been applied to said substrate, said coating system comprising: a cured coating composition; and a color identifier which includes a polymeric dye.
Claim 3
Dependent Claim
29 words
The elongated communication transmission medium of claim 1, wherein said polymeric dye comprises macromolecular chromophore containing molecules wherein an organic dye unit is linked chemically to a polymer chain.
Claim 4
Dependent Claim
16 words
The elongated communication transmission medium of claim 2, wherein said cured coating composition is radiation cured.
Claim 5
Dependent Claim
23 words
The elongated communication transmission medium of claim 3, wherein said cured coating composition is one which has been cured by visible light radiation.
Claim 6
Dependent Claim
17 words
The elongated communication transmission medium of claim 3, wherein said cured coating composition has been thermally cured.
Claim 7
Dependent Claim
21 words
The elongated communication transmission medium of claim 3, wherein said cured coating composition is one which is cured by ultraviolet light.
Claim 8
Dependent Claim
19 words
The elongated communication transmission medium of claim 6, wherein said color identifier is opaque and further includes an opacifier.
Claim 9
Dependent Claim
44 words
The elongated communication transmission medium of claim 7, wherein said ultraviolet light cured coating composition of said color identifier has sufficient aromaticity to render its refractive index sufficiently high so that a mixture comprising said coating and said opacifier yields a white opaque liquid.
Claim 10
Dependent Claim
14 words
The elongated communication transmission medium of claim 8, wherein said substrate is optical fiber.
Claim 11
Dependent Claim
26 words
The elongated communication transmission medium of claim 8, wherein the refractive index of the opacifer is substantially less than the refractive index of the coating composition.
Claim 12
Dependent Claim
15 words
The elongated communication transmission medium of claim 10, wherein the opacifier comprises a perfluorinated polyether.
Claim 13
Dependent Claim
50 words
The elongated communication transmission medium of claim 11, wherein said substrate is an optical fiber which includes at least one layer of a coating material applied thereto and wherein said color identifier comprises a layer which has been applied to an outer surface of said at least one coating layer.
Claim 14
Dependent Claim
40 words
The elongated communication transmission medium of claim 12, wherein said color identifier includes about 98 parts by weight of an ultraviolet light cured composition, about 1 part by weight of an opacifier and about 2 parts of a polymeric dye,
Claim 15
Dependent Claim
18 words
The elongated communication transmission medium of claim 13, wherein said ultraviolet light cured composition comprises an oligomeric material.
Claim 16
Dependent Claim
41 words
The elongated communication transmission medium of claim 14, wherein said ultraviolet light cured coating composition comprises about 75 percent by weight of an oligomer, about 23 percent by weight of a diluent and about 2 percent by weight of a photoinitiator.
Claim 17
Dependent Claim
55 words
The elongated communication transmission medium of claim 15, wherein said ultraviolet light cured coating composition comprises about 75 percent by weight of an oligomer comprising polyethylene glycol adipate-toluene diisocyanate-hydroxyethyl acrylate, about 11.5 percent by weight of N-vinyl pyrolidone, about 11.5 percent by weight of ethoxyethoxyethyl acrylate and about 2 percent by weight of a photoinitiator.
Claim 18
Dependent Claim
37 words
The elongated communication transmission medium of claim 11, wherein said substrate is an optical fiber which is enclosed in a coating system, said coating system comprising an inner primary coating layer and an outer secondary coating layer.
Claim 19
Dependent Claim
17 words
The elongated communication transmission medium of claim 17, wherein said secondary coating layer includes a color identifier.
Claim 20
Dependent Claim
24 words
The elongated communication transmission medium of claim 18, wherein said ultraviolet light cured coating composition of said secondary coating layer comprises an oligomeric material.
Claim 21
Dependent Claim
41 words
The elongated communication transmission medium of claim 19, wherein said secondary coating layer comprises about 98 parts by weight of an oligomeric material, about 1 part by weight of an opacifier and about 2 parts by weight of a polymeric dye.
Claim 22
Dependent Claim
38 words
The elongated communication transmission medium of claim 20, wherein said oligomeric material comprises about 75 percent by weight of an oligomer, about 23 percent by weight of a diluent and about 2 percent by weight of a photoinitiator.
Claim 23
Dependent Claim
55 words
The elongated communication transmission medium of claim 21, wherein said ultraviolet light cured coating composition comprises about 75 percent by weight of an oligomer comprising polyethylene glycol adipate-toluene diisocyanate-hydroxyethyl acrylate, about 11.5 percent by weight of N-vinyl pyrolidone, about 11.5 percent by weight of ethoxyethoxyethyl arcylate and about 2 percent by weight of a photoinitiator.
Claim 24
Dependent Claim
15 words
The elongated communication transmission medium of claim 22, wherein the opacifier comprises a perfluorinated polyether.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-12-23 | 1995-06-24 | 1995-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-12-23 | 1999-06-24 | 1999-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-12-23 | 2003-06-24 | 2003-12-24 | $7700.00 | Window Closed / Lapsed |