EP0125710A2
Expired / Lapsed
EP
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U.V. curable coating for optical fibers
Assignee: International Standard Electric Corp
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Filing: 1984-04-04
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Granted: —
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Expires: 2004-04-04
Abstract
Abstract A rapid U.V. curing composition particularly adapted for forming a protective coating on glass optical fibers comprising a solvent-free mixture of an acrylated aromatic urethane oligomer, a mixture of a U.V. curable mono-, di-, and/or trifunctional monomer, a photoinitiator such as an acetophenone or a derivative thereof and an amine accelerator.
Inventors
- 👤 Nancy Woolsey Carlson
- 👤 Patrick Louis Sciaraffa
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-30 18:31
CPC Classifications
C; C08; C08F; C08F299/00; C08F299/02; C08F299/06; C03; C03C; C03C25/00; C03C25/10; C03C25/104; C03C25/106; G; G02; G02B; G02B6/00; G02B6/44; G02B6/4401; G02B6/4402
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
82 words
A U.V. curable coating composition particularly adapted for providing a protective polymer coating on optical fibers, said coating composition comprising a solvent-free mixture of 10% to 95% by weight of an acrylated urethane oligomer of an average molecular weight of 1000-25,000, 4.0% to 90.0% by weight of at least one monofunctional, difunctional or trifunctional liquid monomer, each monomer being poly- nerizable by free radicals, 1% to 10% by weight of a photoinitiator and 0.5% to 5% by weight of an amine accelerator.
Claim 2
Dependent Claim
82 words
A U.V. curable coating composition particularly adapted for providing a protective polymer coating on optical fibers, said coating composition comprising a solvent-free mixture of 10% to 95% by weight of an acrylated urethane oligomer of an average molecular weight of 1000-25,000, 4.0% to 90.0% by weight of at least one monofunctional, difunctional or trifunctional liquid monomer, each monomer being poly- nerizable by free radicals, 1% to 10% by weight of a photoinitiator and 0.5% to 5% by weight of an amine accelerator.
Claim 3
Dependent Claim
18 words
The U.V. curable coating composition of claim 1 wherein the acrylated urethane oligomer is an acrylated aromatic urethane.
Claim 4
Dependent Claim
49 words
The U.V. curable coating of claim 2 wherein the solvent-free mixture comprises 55% to 85% by weight of the oligomer, 15% to 45% by weight of the mixture of liquid monomers, 1.0% to 5.0% by weight of the photoinitiator and 3.0% to 5.0% by weight of the amine accelerator.
Claim 5
Dependent Claim
16 words
The U.V. curable coating composition of claim 3 wnerein difunctional and a trifunctional acrylate are present.
Claim 6
Dependent Claim
16 words
The U.V. curable coating of claim 4 wherein the photoinitiator is acetophenone or a derivative thereof.
Claim 7
Dependent Claim
18 words
The U.V. curable coating of claim 5 wherein the photoinitiator is 2,2-dimethoxy-2-phenyl-acetophenone and the amine accelerator is methyldiethanolamine.
Claim 8
Dependent Claim
13 words
The U.V. curable coating composition of claim 6 comprising in parts by weight:
Claim 9
Dependent Claim
21 words
An optical fiber provided with a hard, flexible, scratch-resistant coating formed by the U.V. curing of the composition of claim 10
Claim 10
Dependent Claim
21 words
An optical fiber provided with a hard, flexible, scratch-resistant coating formed by the U.V. curing of the composition of claim 2.
Claim 11
Dependent Claim
21 words
An optical fiber provided with a hard, flexible, scratch-resistant coating formed by the U.V. curing of the composition of claim 3.
Claim 12
Dependent Claim
21 words
An optical fiber provided with a hard, flexible, scratch-resistant coating formed by the U.V. curing of the composition of claim 4.
Claim 13
Dependent Claim
21 words
An optical fiber provided with a hard, flexible, scratch-resistant coating formed by the U.V. curing of the composition of claim 5.
Claim 14
Dependent Claim
21 words
An optical fiber provided with a hard, flexible, scratch-resistant coating formed by the U.V. curing of the composition of claim 6.
Claim 15
Dependent Claim
21 words
An optical fiber provided with a hard, flexible, scratch-resistant coating formed by the U.V. curing of the composition of claim 7.
References Cited (Backward Citations)
No citation records indexed.
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