US5985952A
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US
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Radiation curable primary coating composition for an optical fiber
Assignee: Alvin C Levy & Associates Inc
•
Filing: 1998-03-23
•
Granted: 1999-11-16
•
Expires: 2018-03-23
Abstract
Abstract The invention relates to a radiation curable primary coating composition for coating an optical fiber, composed of a component having a first end and a second end, a saturated aliphatic backbone, and at least one epoxide group at the first end of the component, and at least one reactive functional group at the second end; a mixture of acrylate monomers, composed of a first monomer having one acrylate group, and a second monomer having at least two acrylate groups; and a photoinitiator. The invention further relates to a radiation curable primary coating composition for coating an optical fiber, composed of a component having a first end and a second end, a saturated aliphatic backbone, and at least one epoxide group at the first end of the component, and at least one reactive functional group at the second end; a mixture of acrylate monomers, composed of a first monomer having one vinyl ether group, and a second monomer having at least two vinyl ether groups; and a photoinitiator. The invention further relates to a radiation curable primary coating composition for coating an optical fiber, a component having a first end and a second end, composed of a saturated aliphatic backbone, and at least one epoxide group at the first end of the component, and at least one first reactive functional group at the second end; a mixture of acrylate monomers, composed of a first monomer having one acrylate group, and a second monomer having at least two functional groups, comprising a second functional group and a third functional group; and a photoinitiator. The invention further relates to an optical fiber coated with the cured primary composition of the present invention.
Inventors
- 👤 Alvin C. Levy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:56
CPC Classifications
C; C09; C09D; C09D4/00; C09D4/06; C03; C03C; C03C25/00; C03C25/10; C03C25/104; C03C25/106
Claims Analysis
Total Claims: 80
Claim 1
Independent Claim
97 words
A radiation curable primary coating composition for coating an optical fiber, comprising: (a) a component comprising at least two terminal ends, comprising: i) a saturated aliphatic backbone between at least two of the terminal ends, and ii) at least one epoxide group at one terminal end, and at least one reactive functional group at another terminal end, wherein the reactive functional group is not an epoxide group; (b) a mixture of acrylate monomers, comprising iii) a first monomer having one acrylate group, and iv) a second monomer having at least two acrylate groups; and (c) a photoinitiator.
Claim 2
Dependent Claim
97 words
A radiation curable primary coating composition for coating an optical fiber, comprising: (a) a component comprising at least two terminal ends, comprising: i) a saturated aliphatic backbone between at least two of the terminal ends, and ii) at least one epoxide group at one terminal end, and at least one reactive functional group at another terminal end, wherein the reactive functional group is not an epoxide group; (b) a mixture of acrylate monomers, comprising iii) a first monomer having one acrylate group, and iv) a second monomer having at least two acrylate groups; and (c) a photoinitiator.
Claim 3
Dependent Claim
14 words
The composition of claim 1, wherein the aliphatic backbone of component (a) is unsubstituted.
Claim 4
Dependent Claim
28 words
The composition of claim 1, wherein component (a) has an aliphatic group, a cycloaliphatic group, an aryl group or a combination thereof attached to the saturated aliphatic backbone.
Claim 5
Dependent Claim
17 words
The composition of claim 1, wherein component (a) has a phenyl group attached to the aliphatic backbone.
Claim 6
Dependent Claim
16 words
The composition of claim 1, wherein the aliphatic backbone of component (a) is poly(ethylene/butylene) or poly(ethylene/butylene/styrene).
Claim 7
Dependent Claim
15 words
The composition of claim 1, wherein component (a) contains from 5 to 15 epoxide groups.
Claim 8
Dependent Claim
15 words
The composition of claim 1, wherein component (a) contains from 9 to 11 epoxide groups.
Claim 9
Dependent Claim
25 words
The composition of claim 1, wherein the reactive functional group comprises a hydroxyl group, an acrylate group, a vinyl ether group, or a combination thereof.
Claim 10
Dependent Claim
13 words
The composition of claim 1, wherein component (a) is linear, star or radial.
Claim 11
Dependent Claim
10 words
The composition of claim 1, wherein component (a) is linear.
Claim 12
Dependent Claim
41 words
The composition of claim 1, wherein component (a) has two terminal ends, wherein component (a) has from 9 to 11 epoxide groups at one terminal end of component (a) and a hydroxyl group at the other terminal end of component (a).
Claim 13
Dependent Claim
17 words
The composition of claim 11, wherein component (a) has a molecular weight of from 3,000 to 15,000.
Claim 14
Dependent Claim
17 words
The composition of claim 11, wherein component (a) has a molecular weight of from 5,000 to 7,000.
Claim 15
Dependent Claim
14 words
The composition of claim 11, wherein component (a) has a molecular weight of 6,000.
Claim 16
Dependent Claim
19 words
The composition of claim 1, wherein component (a) is from 40 to 80% by weight of the total composition.
Claim 17
Dependent Claim
19 words
The composition of claim 1, wherein component (a) is from 55 to 75% by weight of the total composition.
Claim 18
Dependent Claim
19 words
The composition of claim 1, wherein the first monomer is an acrylate from C 6 to C 20 .
Claim 19
Dependent Claim
19 words
The composition of claim 1, wherein the first monomer is an acrylate from C 8 to C 15 .
Claim 20
Dependent Claim
58 words
The composition of claim 1, wherein the first monomer comprises allyl methacrylate, tetrahydrofurfuryl methacrylate, isodecyl methacrylate, 2-(2-ethoxyethoxy)-ethylacrylate, stearyl acrylate, tetrahydrofurfuryl acrylate, lauryl methacrylate, stearyl acrylate, lauryl acrylate, 2-phenoxyethyl acrylate, 2-phenoxyethyl methacrylate, glycidyl methacrylate, isodecyl acrylate, isobornyl methacrylate, isooctyl acrylate, tridecyl acrylate, tridecyl methacrylate, caprolactone acrylate, ethoxylated nonyl phenol acrylate, isobornyl acrylate, polypropylene glycol monomethacrylate or a combination thereof.
Claim 21
Dependent Claim
22 words
The composition of claim 1, wherein the first monomer comprises octyl acrylate, decyl acrylate, isobornyl acrylate, tridecyl acrylate or a combination thereof.
Claim 22
Dependent Claim
20 words
The composition of claim 1, wherein the first monomer is from 10 to 50% by weight of the total composition.
Claim 23
Dependent Claim
20 words
The composition of claim 1, wherein the first monomer is from 15 to 30% by weight of the total composition.
Claim 24
Dependent Claim
13 words
The composition of claim 1, wherein the second monomer has two acrylate groups.
Claim 25
Dependent Claim
19 words
The composition of claim 1, wherein the second monomer is an acrylate from C 4 to C 20 .
Claim 26
Dependent Claim
90 words
The composition of claim 1, wherein the second monomer comprises 1,6-hexanediol diacrylate; tripropylene glycol diacrylate; 1,3-butylene glycol diacrylate; 1,4-butylene glycol diacrylate; neopentyl glycol diacrylate; triethylene glycol dimethacrylate; ethylene glycol dimethacrylate; tetraethylene glycol dimethacrylate; polyethylene glycol dimethacrylate; 1,3-butylene glycol diacrylate; 1,4-butanediol diacrylate; 1,4-butanediol dimethacrylate; diethylene glycol diacrylate; diethylene glycol dimethacrylate; 1,6-hexanediol diacrylate; neopentyl glycol dimethacrylate; polyethylene glycol dimethacrylate; polyethylene glycol diacrylate; tetraethylene glycol diacrylate; triethylene glycol diacrylate; dipropylene glycol diacrylate, trimethylolpropane triacrylate; pentaerythritol triacrylate; trimethylolpropane ethoxy triacrylate; propoxylated glyceryl triacrylate; pentaerythritol tetraacrylate; dimethylolpropane tetraacrylate; ethoxylated pentaerythritol tetraacrylate, or a combination thereof.
Claim 27
Dependent Claim
21 words
The composition of claim 1, wherein the second monomer comprises 1,6-hexanediol diacrylate; tripropylene glycol diacrylate, trimethyolpropane triacrylate or a combination thereof.
Claim 28
Dependent Claim
20 words
The composition of claim 1, wherein the second monomer is from 2 to 20% by weight of the total composition.
Claim 29
Dependent Claim
20 words
The composition of claim 1, wherein the second monomer is from 5 to 15% by weight of the total composition.
Claim 30
Dependent Claim
16 words
The composition of claim 1, wherein the photoinitiator comprises a cationic initiator and a free-radical initiator.
Claim 31
Dependent Claim
23 words
The composition of claim 29, wherein the cationic initiator comprises diaryl iodonium hexafluoroantimonate, triaryl sulfonium hexafluoroantimonate, triaryl sulfonium hexafluorophosphate or a combination thereof.
Claim 32
Dependent Claim
13 words
The composition of claim 29, wherein the cationic initiator is diaryl iodonium hexafluoroantimonate.
Claim 33
Dependent Claim
20 words
The composition of claim 29, wherein the cationic initiator is from 0.15 to 1.50% by weight of the total composition.
Claim 34
Dependent Claim
20 words
The composition of claim 29, wherein the cationic initiator is from 0.30 to 0.60% by weight of the total composition.
Claim 35
Dependent Claim
22 words
The composition of claim 29, wherein free-radical initiator comprises 2,2-dimethoxy-2-phenylacetophenone, 1-hydroxycyclohexyl phenyl ketone, 2-methyl-1-{4-(methylthio)phenyl}-2-morpholinopropanone-1,2-benzyl-2-N,N-dimethylamino-1-(4-morpholinophenyl)-1-butanone, 2-hydroxy-2-methyl-1-phenyl-propan-1-one, 4-(2-hydroxyethoxy)phenyl-(2-propyl)ketone, 2,4,6-{trimethylbenzoyldiphenylphosphine}oxide, benzophenone, or a combination thereof.
Claim 36
Dependent Claim
15 words
The composition of claim 29, wherein the free-radical initiator comprises 2,2-dimethoxy-2-phenylacetophenone or 1-hydroxycyclohexyl phenyl ketone.
Claim 37
Dependent Claim
20 words
The composition of claim 29, wherein the free-radical initiator is from 0.5 to 5.0% by weight of the total composition.
Claim 38
Dependent Claim
20 words
The composition of claim 29, wherein the free-radical initiator is from 1.0 to 2.5% by weight of the total composition.
Claim 39
Dependent Claim
21 words
The composition of claim 1, wherein the composition further comprises an adhesion promoter, a thermal oxidative stabilizer, or a combination thereof.
Claim 40
Dependent Claim
18 words
The composition of claim 1, wherein the composition further comprises an adhesion promoter and a thermal oxidative stabilizer.
Claim 41
Dependent Claim
13 words
The composition of claim 38, wherein the adhesion promoter comprises an organofunctional silane.
Claim 42
Dependent Claim
39 words
The composition of claim 38, wherein the adhesion promoter comprises octyltriethoxysilane, methyltriethoxysilane, methyltrimethoxysilane, tris-{3-trimethoxysilyl)propyl}isocyanurate, vinyltriethoxysilane, vinyltrimethoxysilane, vinyl-tris-(2-methoxyethoxy)silane, vinylmethyldimethoxysilane, gamma-methacryloxypropyltrimethoxysilane, beta-(3,4-epoxycyclohexyl)ethyltrimethoxysilane, gamma-glycidoxypropyltrimethoxysilane, gamma-mercaptopropyltrimethoxysilane, bis-(3-{triethoxysilyl}-propyl-tetrasulfane, gamma-aminopropyltriethoxysilane, aminoalkylsilicone, gamma-aminopropyltrimethoxysilane, N-beta-(aminoethyl)-gamma-aminopropyltrimethoxysilane, bis-(gamma-trimethoxysilylpropyl)amine, N-phenyl-gamma-aminopropyltrimethoxysilane, organomodified polydimethylsiloxane, N-beta-(aminoethyl)-gamma-aminopropylmethyldimethoxysilane, gamma-ureidopropyltrialkoxysilane, gamma-ureidopropyltrimethoxysilane, gamma-isocyanatopropyltriethoxysilane, or a combination thereof.
Claim 43
Dependent Claim
11 words
The composition of claim 38, wherein the adhesion promoter is gamma-methacryloxypropyltrimethoxysilane.
Claim 44
Dependent Claim
20 words
The composition of claim 38, wherein the adhesion promoter is from 0.1 to 2.5% by weight of the total composition.
Claim 45
Dependent Claim
20 words
The composition of claim 38, wherein the adhesion promoter is from 0.3 to 1.5% by weight of the total composition.
Claim 46
Dependent Claim
23 words
The composition of claim 38, wherein the thermal oxidative stabilizer comprises octadecyl 3,5-di-tert-butyl-4-hydroxyhydrocinnamate, 3,5-bis-(1,1-dimethylethyl)-4-hydroxybenzenepropanoic acid, 2,2,-bis-{{3-{3,5-bis-(1,1-dimethylethyl)-4-hydroxyphenyl}-1-oxopropoxy}methyl}-1,3-propanediyl ester, thiodiethylene bis-(3,5-tert-butyl-4-hydroxy)hydrocinnamate, or a combination thereof.
Claim 47
Dependent Claim
13 words
The composition of claim 38, wherein the thermal oxidative stabilizer is octadecyl 3,5-di-tert-butyl-4-hydroxyhydrocinnamate.
Claim 48
Dependent Claim
21 words
The composition of claim 38, wherein the thermal oxidative stabilizer is from 0.1 to 4.0% by weight of the total composition.
Claim 49
Dependent Claim
21 words
The composition of claim 38, wherein the thermal oxidative stabilizer is from 0.15 to 2.5% by weight of the total composition.
Claim 50
Dependent Claim
15 words
The composition of claim 1, wherein the composition is substantially free of a tackifying resin.
Claim 51
Dependent Claim
17 words
The composition of claim 1, wherein upon photoinitiation, component (a) is crosslinked to form a polymeric network.
Claim 52
Dependent Claim
18 words
The composition of claim 1, wherein upon photoinitiation, component (a) is crosslinked with itself and/or the acrylate monomers.
Claim 53
Dependent Claim
17 words
The composition of claim 1, wherein the composition has a viscosity of from 2000 to 15,000 centipoise.
Claim 54
Dependent Claim
17 words
The composition of claim 1, wherein the composition has a viscosity of from 4000 to 7,000 centipoise.
Claim 55
Dependent Claim
102 words
The composition of claim 1, wherein component (a) is from 40 to 80% by weight of the total composition, the acrylate monomers are from 15 to 50% by weight of the total composition, the photoinitiator is from 1.25 to 5.5% by weight of the total composition, the adhesion promoter is from 0.2 to 2.5% by weight of the total composition, and the thermal oxidative stabilizer is from 0.1 to 4.0% by weight of the total composition, wherein the sum of the amount of component (a), the acrylate mixture, the photoinitiator, the adhesion promoter, and the thermal oxidative stabilizer is equal to 100%.
Claim 56
Dependent Claim
101 words
The composition of claim 1, wherein component (a) is from 60 to 75% by weight of the total composition, the acrylate monomers from 20 to 40% by weight of the total composition, the photoinitiator is from 1.9 to 3.1% by weight of the total composition, the adhesion promoter is from 0.2 to 2.5% by weight of the total composition, and the thermal oxidative stabilizer is from 0.1 to 4.0% by weight of the total composition, wherein the sum of the amount of component (a), the acrylate mixture, the photoinitiator, the adhesion promoter, and the thermal oxidative stabilizer is equal to 100%.
Claim 57
Dependent Claim
112 words
A radiation curable primary coating composition for coating an optical fiber, comprising: (a) a component comprising at least two terminal ends, comprising: i) a saturated aliphatic backbone between at least two of the terminal ends, and ii) at least one epoxide group at one terminal end, and at least one first reactive functional group at another terminal end, wherein the first reactive functional group is not an epoxide group; (b) a mixture of monomers, comprising iii) a first monomer having one acrylate group or vinyl ether group, and iv) a second monomer having at least two functional groups, comprising a second functional group and a third functional group, and (c) a photoinitiator.
Claim 58
Dependent Claim
112 words
A radiation curable primary coating composition for coating an optical fiber, comprising: (a) a component comprising at least two terminal ends, comprising: i) a saturated aliphatic backbone between at least two of the terminal ends, and ii) at least one epoxide group at one terminal end, and at least one first reactive functional group at another terminal end, wherein the first reactive functional group is not an epoxide group; (b) a mixture of monomers, comprising iii) a first monomer having one acrylate group or vinyl ether group, and iv) a second monomer having at least two functional groups, comprising a second functional group and a third functional group, and (c) a photoinitiator.
Claim 59
Dependent Claim
31 words
The composition of claim 56, wherein the first, second and third functional group comprises an acrylate group, an epoxy group, a vinyl ether group, a hydroxyl group, or a combination thereof.
Claim 60
Dependent Claim
17 words
The composition of claim 56, wherein the first, second and third functional group is an acrylate group.
Claim 61
Dependent Claim
23 words
The composition of claim 56, wherein the first monomer is a vinyl ether and the second and third functional groups are acrylate groups.
Claim 62
Dependent Claim
13 words
The composition of claim 56, wherein the second monomer is a vinyl ether.
Claim 63
Dependent Claim
67 words
The composition of claim 60, wherein the vinyl ether comprises triethylene glycol divinyl ether; cyclohexanedimethanol divinyl ether; dodecyl vinyl ether; diethylene glycol divinyl ether; dipropylene glycol divinyl ether; hexanediol divinyl ether; butanediol divinyl ether; ethylene glycol divinyl ether; tetraethylene glycol divinyl ether; trimethylolpropane trivinyl ether; polytetrahydrofuran divinyl ether; 1,3-benzenedicarboxylic acid, bis-{4-ethenyloxy)butyl}ester; pentanedioic acid, bis-{{4-{(ethenyloxy)methyl}cyclohexyl}methyl}ester; butanedioic acid, bis-{4-(ethenyloxy)butyl}ester; hexanedioic acid, bis-{4-(ethenyloxy)butyl}ester; 1,2,4-benzenetricarboxylic acid, tris-{4-(ethenyloxy)butyl}ester, or a combination thereof.
Claim 64
Dependent Claim
18 words
The composition of claim 56, further comprising an adhesion promoter, a thermal oxidative stabilizer, or a combination thereof.
Claim 65
Dependent Claim
15 words
The composition of claim 56, wherein the composition is substantially free of a tackifying resin.
Claim 66
Dependent Claim
100 words
A radiation curable primary coating composition for coating an optical fiber, comprising: (a) a component comprising at least two terminal ends, comprising: i) a saturated aliphatic backbone between at least two of the terminal ends, and ii) at least one epoxide group at one terminal end, and at least one reactive functional group at another terminal end, wherein the reactive functional group is not an epoxide group; (b) a mixture of vinyl ether monomers, comprising iii) a first monomer having one vinyl ether group, and iv) a second monomer having at least two vinyl ether groups; and (c) a photoinitiator.
Claim 67
Dependent Claim
100 words
A radiation curable primary coating composition for coating an optical fiber, comprising: (a) a component comprising at least two terminal ends, comprising: i) a saturated aliphatic backbone between at least two of the terminal ends, and ii) at least one epoxide group at one terminal end, and at least one reactive functional group at another terminal end, wherein the reactive functional group is not an epoxide group; (b) a mixture of vinyl ether monomers, comprising iii) a first monomer having one vinyl ether group, and iv) a second monomer having at least two vinyl ether groups; and (c) a photoinitiator.
Claim 68
Dependent Claim
88 words
The composition of claim 64, wherein the first monomer comprises hydroxybutyl vinyl ether; propenylether of propylene carbonate; dodecyl vinyl ether; cyclohexyl vinyl ether; 2-ethylhexyl vinyl ether; octadecyl vinyl ether; 1-butanol, 4-(ethenyloxy)-, benzoate; cyclohexanemethanol, 4-{(ethenyloxy)methyl}-, benzoate; ethyl vinyl ether; propyl vinyl ether; isobutyl vinyl ether; butyl vinyl ether; ethylene glycol monovinyl ether; ethylene glycol butyl vinyl ether; triethylene glycol methyl vinyl ether; cyclohexanedimethanol vinyl ether; tert-butyl vinyl ether; tert-amyl vinyl ether; diethylene glycol monovinyl ether; hexanediol monovinyl ether; amino propyl vinyl ether; 2-diethylaminoethyl vinyl ether, or a combination thereof.
Claim 69
Dependent Claim
67 words
The composition of claim 64, wherein the second monomer comprises triethylene glycol divinyl ether; cyclohexanedimethanol divinyl ether; dodecyl vinyl ether; diethylene glycol divinyl ether; dipropylene glycol divinyl ether; hexanediol divinyl ether; butanediol divinyl ether; ethylene glycol divinyl ether; tetraethylene glycol divinyl ether; trimethylolpropane trivinyl ether; polytetrahydrofuran divinyl ether; 1,3-benzenedicarboxylic acid, bis-{4-ethenyloxy)butyl}ester; pentanedioic acid, bis-{{4-{(ethenyloxy)methyl}cyclohexyl}methyl}ester; butanedioic acid, bis-{4-(ethenyloxy)butyl}ester; hexanedioic acid, bis-{4-(ethenyloxy)butyl}ester; 1,2,4-benzenetricarboxylic acid, tris-{4-(ethenyloxy)butyl}ester, or a combination thereof.
Claim 70
Dependent Claim
12 words
The composition of claim 64, wherein the photoinitiator comprises a cationic initiator.
Claim 71
Dependent Claim
21 words
The composition of claim 64, wherein the composition further comprises an adhesion promoter, a thermal oxidative stabilizer, or a combination thereof.
Claim 72
Dependent Claim
15 words
The composition of claim 64 wherein the composition is substantially free of a tackifying resin.
Claim 73
Dependent Claim
81 words
A radiation curable primary coating composition for coating an optical fiber, comprising: (a) a component comprising at least two terminal ends, comprising: i) a saturated aliphatic backbone between at least two of the terminal ends, and ii) at least one epoxide group at one terminal end, and at least one reactive functional group at another terminal end, wherein the reactive functional group is not an epoxide group; (b) a monoacrylate having from 6 to 20 carbon atoms; and (c) a photoinitiator.
Claim 74
Dependent Claim
81 words
A radiation curable primary coating composition for coating an optical fiber, comprising: (a) a component comprising at least two terminal ends, comprising: i) a saturated aliphatic backbone between at least two of the terminal ends, and ii) at least one epoxide group at one terminal end, and at least one reactive functional group at another terminal end, wherein the reactive functional group is not an epoxide group; (b) a monoacrylate having from 6 to 20 carbon atoms; and (c) a photoinitiator.
Claim 75
Dependent Claim
14 words
The composition of claim 1, wherein the reactive functional group is a hydroxyl group.
Claim 76
Dependent Claim
59 words
The composition of claim 1, wherein component (a) has two terminal ends, wherein component (a) has from 9 to 11 epoxide groups at one terminal end of component (a), a hydroxyl group at the other terminal end of component (a), and an aliphatic group, aromatic group, a cycloaliphatic group, or a combination thereof attached to the saturated aliphatic backbone.
Claim 77
Dependent Claim
49 words
The composition of claim 1, wherein component (a) has two terminal ends, wherein component (a) has from 9 to 11 epoxide groups at one terminal end of component (a), a hydroxyl group at the other terminal end of component (a), and the saturated aliphatic backbone is poly(ethylene/butylene) or poly(ethylene/butylene/styrene).
Claim 78
Dependent Claim
85 words
The composition of claim 38, wherein (i) component (a) has from 9 to 11 epoxide groups at one terminal end of component (a), a hydroxyl group at the other terminal end of component (a), and the saturated aliphatic backbone is poly(ethylene/butylene); (ii) the first monomer is tridecyl acrylate; (iii) the second monomer is tripropylene glycol diacrylate; (iv) the photoinitiator is 2,2-dimethoxy-2-phenylacetophenone and diaryl iodonium hexafluoroantimonate; (v) the adhesive promoter is gamma-methacryloxypropyl trimethoxysilane, gamma-mercaptopropyltrimethoxysilane, or a combination thereof; and (vi) the thermal oxidative stabilizer is octadecyl-3,5-di-tert-butyl-4-hydroxyhydrocinnamate.
Claim 79
Dependent Claim
96 words
A radiation curable primary coating composition for coating an optical fiber, comprising: (a) a component comprising at least two terminal ends, comprising: i) a saturated aliphatic backbone between at least two of the terminal ends, wherein the saturated aliphatic backbone comprises poly(ethylene/butylene) or poly(ethylene/butylene/styrene), and ii) at least one epoxide group at one terminal end, and at least one reactive functional group at another terminal end; (b) a mixture of acrylate monomers, comprising iii) a first monomer having one acrylate group, and iv) a second monomer having at least two acrylate groups; and (c) a photoinitiator.
Claim 80
Dependent Claim
96 words
A radiation curable primary coating composition for coating an optical fiber, comprising: (a) a component comprising at least two terminal ends, comprising: i) a saturated aliphatic backbone between at least two of the terminal ends, wherein the saturated aliphatic backbone comprises poly(ethylene/butylene) or poly(ethylene/butylene/styrene), and ii) at least one epoxide group at one terminal end, and at least one reactive functional group at another terminal end; (b) a mixture of acrylate monomers, comprising iii) a first monomer having one acrylate group, and iv) a second monomer having at least two acrylate groups; and (c) a photoinitiator.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 2002-11-15 | 2003-05-17 | 2003-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-11-15 | 2007-05-17 | 2007-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-11-15 | 2011-05-17 | 2011-11-16 | $7700.00 | Window Closed / Lapsed |