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Patent US5320903A successfully refreshed from Google Patents.
US5320903A
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Modified cellulose regenerated fiber comprising chitosan particles
Assignee: Fujibo Holdings Inc
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Filing: 1992-02-12
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Granted: 1994-06-14
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Expires: 2012-02-12
Abstract
Abstract The present invention is to provide a modified cellulose regenerated fiber having a practically endurable tenacity, and being excellent in dye-affinity, and having anti-funguses and deodorizing properties. The present invention comprises preliminarily molding chitosan or acetylated chitosan into a fine particle, mixing the fine particle body with cellulose viscose prior to spinning, and spinning the mixture, at the inclusion regenerated fiber.
Inventors
- 👤 Tsuguhisa Hirukawa
- 👤 Hiroaki Tanibe
- 👤 Tuguo Miyaji
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 11:49
CPC Classifications
C; C08; C08L; C08L1/00; C08L1/02; C08L1/06; D; D01; D01F; D01F2/00; D01F2/06; D01F2/08; D01F2/10; C08L5/00; C08L5/08; Y; Y10; Y10T; Y10T428/00; Y10T428/25; Y10T428/253; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2964; Y10T428/2965; Y10T428/31504; Y10T428/31971; Y10T428/31975; Y10T428/31978; Y10T428/31986
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
56 words
Modified cellulose regenerated fiber containing fine particles selected from the group consisting of particles having a diameter less than 10 μm of a material regenerated chitosan and particles of regenerated acetylated chitosan wherein the mixing amount of said fine particles to the cellulose element of said modified cellulose regenerated fiber is at least 0.5% by weight.
Claim 2
Dependent Claim
56 words
Modified cellulose regenerated fiber containing fine particles selected from the group consisting of particles having a diameter less than 10 μm of a material regenerated chitosan and particles of regenerated acetylated chitosan wherein the mixing amount of said fine particles to the cellulose element of said modified cellulose regenerated fiber is at least 0.5% by weight.
Claim 3
Dependent Claim
37 words
Modified cellulose regenerated fiber as claimed in claim 1, wherein the mixing amount of said fine particles to the cellulose element of said modified cellulose regenerated fiber is in a range of 0.5 to 2.0% by weight.
Claim 4
Dependent Claim
23 words
Modified cellulose regenerated fiber as claimed in claim 1, wherein said modified cellulose regenerated fiber is rayon viscose fiber and polynosic viscose fiber.
Claim 5
Dependent Claim
29 words
Modified cellulose regenerated fiber as claimed in claim 1, wherein said modified cellulose regenerated fiber is obtained by mixing said fine particles with cellulose viscose, and spinning the mixture.
Claim 6
Dependent Claim
20 words
Modified cellulose regenerated fiber as claimed in claim 1, wherein said modified cellulose regenerated fiber is provided with deodorizing property.
Claim 7
Dependent Claim
21 words
Modified cellulose regenerated fiber as claimed in claim 1, wherein said modified cellulose regenerated fiber is provided with an anti-fungus property.
References Cited (Backward Citations)
US3103732A
Cited
US4392916A
Cited
JPS6262827A
Cited
JPS62100534A
Cited
JPH0241473A
Cited
JPH02160972A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-06-13 | 1997-12-13 | 1998-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-06-13 | 2001-12-13 | 2002-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-06-13 | 2005-12-13 | 2006-06-14 | $7700.00 | Window Closed / Lapsed |