Patent US3248263A successfully refreshed from Google Patents.
Patent US4844604A successfully refreshed from Google Patents.
US4844604A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical fiber bundling material and bundled optical fibers
Assignee: JSR Corp
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Filing: 1988-06-15
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Granted: 1989-07-04
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Expires: 2008-06-15
Abstract
Abstract A curable resin composition adapted for bundling coated optical fibers comprises: (A) polyetherpolyurethanes of at least one kind having an ethylenically unsaturated group and containing from 40% to 85%, by weight, of a tetramethyleneoxy structure in the entire structure thereof; (B) ethylenically unsaturated monomer; and (C) a photopolymerization initiator. This resin composition, when cured, has a coefficient of dynamic friction with polyethylene of not more than 0.4, and is thus specially adapted for use in holding together coated optical fibers in a tape-like structure.
Inventors
- 👤 Timothy Bishop
- 👤 Tohru Ohtaka
- 👤 Keiichi Bessho
- 👤 Takeshi Sugimoto
- 👤 Katsutoshi Igarashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:58
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/44; G02B6/4479; G02B6/4486; C; C08; C08F; C08F299/00; C08F299/02; C08F299/06; C08F299/065; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/48; C08G18/4854; C08G18/67; C08G18/671; C08G18/672; C08G18/70; C08G18/81; C08G18/8141; C08G18/815; C08G18/8158; C08G18/8175; G02B6/4401; G02B6/4403
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
68 words
A curable resin composition adapted for bundling coated optical fibers which comprises: (A) polyetherpolyurethanes of at least one kind having an ethylenically unsaturated group and containing from 40% to 85%, by weight, of a tetramethyleneoxy structure in the entire structure thereof; (B) ethylenically unsaturated monomer; and (C) a photopolymerization initiator, said resin composition, when cured, having a coefficient of dynamic friction with polyethylene of not more than 0.4.
Claim 2
Dependent Claim
68 words
A curable resin composition adapted for bundling coated optical fibers which comprises: (A) polyetherpolyurethanes of at least one kind having an ethylenically unsaturated group and containing from 40% to 85%, by weight, of a tetramethyleneoxy structure in the entire structure thereof; (B) ethylenically unsaturated monomer; and (C) a photopolymerization initiator, said resin composition, when cured, having a coefficient of dynamic friction with polyethylene of not more than 0.4.
Claim 3
Dependent Claim
28 words
A resin composition as recited in claim 1 in which said polyetherpolyurethane is made by the reaction of organic diisocyanate, monohydric acrylate and glycol containing repeating tetramethyleneoxy groups.
Claim 4
Dependent Claim
23 words
A resin composition as recited in claim 2 in which said polyetherpolyurethane has a molecular weight in the range of 3,000 to 8,000.
Claim 5
Dependent Claim
16 words
A resin composition as recited in claim 3 in which said monohydric acrylate is 2-hydroxyethyl acrylate.
Claim 6
Dependent Claim
20 words
A resin composition as recited in claim 3 in which said ethylenically unsaturated monomer comprises vinyl pyrrolidone and isobornyl acrylate.
Claim 7
Dependent Claim
16 words
A resin composition as recited in claim 1 in which said monohydric acrylate is 2-hydroxyethyl acrylate.
Claim 8
Dependent Claim
23 words
A resin composition as recited in claim 1 in which said polyetherpolyurethane has a molecular weight in the range of 1,000 to 10,000.
Claim 9
Dependent Claim
17 words
A resin composition as recited in claim 1 in which said ethylenically unsaturated monomer comprises vinyl pyrrolidone.
Claim 10
Dependent Claim
17 words
A resin composition as recited in claim 1 in which said ethylenically unsaturated monomer comprise isobornyl acrylate.
Claim 11
Dependent Claim
17 words
A bundle of parallel coated optical fibers held together by the cured resin composition of claim 1.
Claim 12
Dependent Claim
38 words
A bundle of parallel coated optical fibers as recited in claim 10 in which said fibers are aligned on a plane and held together by said cured resin composition to form a tape-like structure having a rectangular cross-section.
Claim 13
Dependent Claim
101 words
A curable resin composition adapted for bundling coated optical fibers which comprises: (A) from 20% to 85% of polyetherpolyurethanes of at least one kind having an ethylenically unsaturated group and containing from 40% to 85%, by weight, of a tetramethyleneoxy structure in the entire structure thereof, said polyetherpolyurethanes being made by the reaction of organic diisocyanate, monohydric acrylate and glycol containing repeating tetramethyleneoxy groups; (B) from 5% to 70% of ethylenically unsaturated monomer; and (C) from 0.1% to 10% of a photopolymerization initiator, said resin composition, when cured, having a coefficient of dynamic friction with polyethylene of not more than 0.4.
Claim 14
Dependent Claim
101 words
A curable resin composition adapted for bundling coated optical fibers which comprises: (A) from 20% to 85% of polyetherpolyurethanes of at least one kind having an ethylenically unsaturated group and containing from 40% to 85%, by weight, of a tetramethyleneoxy structure in the entire structure thereof, said polyetherpolyurethanes being made by the reaction of organic diisocyanate, monohydric acrylate and glycol containing repeating tetramethyleneoxy groups; (B) from 5% to 70% of ethylenically unsaturated monomer; and (C) from 0.1% to 10% of a photopolymerization initiator, said resin composition, when cured, having a coefficient of dynamic friction with polyethylene of not more than 0.4.
Claim 15
Dependent Claim
41 words
A resin composition as recited in claim 12 in which said polyetherpolyurethanes are present in from 40% to 80%, and said ethylenically unsaturated monomer is present in from 15% to 60%, and said initiator is present in from 1% to 5%.
Claim 16
Dependent Claim
23 words
A resin composition as recited in claim 13 in which said polyetherpolyurethane has a molecular weight in the range of 3,000 to 8,000.
Claim 17
Dependent Claim
17 words
A bundle of parallel coated optical fibers held together by the cured resin composition of claim 14.
Claim 18
Dependent Claim
14 words
A bundle of parallel coated optical fibers held together as recited in claim 14.
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) | 1992-07-03 | 1993-01-02 | 1993-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-03 | 1997-01-02 | 1997-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-03 | 2001-01-02 | 2001-07-04 | $7700.00 | Window Closed / Lapsed |