US4388093A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing a glass fiber for light transmission
Assignee: Sumitomo Electric Industries Ltd
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Filing: 1981-12-23
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Granted: 1983-06-14
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Expires: 2001-12-23
Abstract
Abstract A process for producing an optical fiber is described, wherein a fiber that has been drawn from a glass preform is coaed with a resin composition curable with heat, ultraviolet rays, or electron beams, and then cured, wherein before the drawn fiber contacts another solid object, the fiber is cooled by being passed through a cooling means filled with a non-reactive liquid material which is the same as said resin composition except that it is free from any compound that catalyzes curing of the resin, selected from among a curing agent, a cross-linking agent, curing catalyst, curing accelerator, sensitizing agent and a reactive diluent, and then the fiber is coated and with said resin composition and cured.
Inventors
- 👤 Takao Kimura
- 👤 Toru Yamanishi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:52
CPC Classifications
C; C03; C03B; C03B37/00; C03B37/01; C03B37/02; C03B37/025; C03B37/027; C03B37/02718; C03C; C03C25/00; C03C25/10; C03C25/104; C03C25/106; C03B2205/00; C03B2205/50; C03B2205/52; C03B2205/53
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
113 words
A process for producing an optical fiber wherein a fiber that has been drawn from a glass preform is coated with a resin composition curable with heat, ultraviolet rays, or electron beams, and then cured, wherein before the drawn fiber contacts another solid object said fiber is cooled by being passed through a cooling means filled with a non-reactive liquid material which is the same as said resin composition except that it is free from any compound that catalyzes curing of the resin, selected from among a curing agent, cross-linking agent, curing catalyst, curing accelerator, sensitizing agent, and a reactive diluent, and then the fiber is coated with said resin composition and cured.
Claim 2
Dependent Claim
113 words
A process for producing an optical fiber wherein a fiber that has been drawn from a glass preform is coated with a resin composition curable with heat, ultraviolet rays, or electron beams, and then cured, wherein before the drawn fiber contacts another solid object said fiber is cooled by being passed through a cooling means filled with a non-reactive liquid material which is the same as said resin composition except that it is free from any compound that catalyzes curing of the resin, selected from among a curing agent, cross-linking agent, curing catalyst, curing accelerator, sensitizing agent, and a reactive diluent, and then the fiber is coated with said resin composition and cured.
Claim 3
Dependent Claim
28 words
A process for producing an optical fiber as in claim 1, wherein said resin composition is selected from an organopolysiloxane, polyurethane, polyester, polybutadiene, epoxy resin, polyimide and polyamideimide.
Claim 4
Dependent Claim
39 words
A process for producing an optical fiber as in claim 1, wherein said non-reactive liquid material in said cooling means is forced to flow in the same direction as that of said optical fiber passing through said cooling means.
Claim 5
Dependent Claim
38 words
A process for producing an optical fiber as in claim 1, wherein said resin composition in a coating applicator is forced to flow in the same direction as that of said optical fiber passing through said coating applicator.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-06-13 | 1986-12-13 | 1987-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-06-13 | 1990-12-13 | 1991-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-06-13 | 1994-12-13 | 1995-06-14 | $7700.00 | Window Closed / Lapsed |