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Patent US4624677A successfully refreshed from Google Patents.
US4624677A
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US
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Method for controlling antimicrobial content of fibers
Assignee: ATK Launch Systems LLC
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Filing: 1984-10-03
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Granted: 1986-11-25
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Expires: 2004-10-03
Abstract
Abstract The use of a bath containing the same antimicrobial agent as that previously incorporated in a fiber permits the antimicrobial concentration in the fiber to be controlled when the fiber is processed through liquid media such as dye baths and the like.
Inventors
- 👤 Lawrence J. Guilbault
- 👤 Thomas C. McEntee
- 👤 Judith L. Koob
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:11
CPC Classifications
D; D06; D06M; D06M16/00; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/921; Y10S8/922; Y10S8/924; Y10T; Y10T428/00; Y10T428/29; Y10T428/2904; Y10T428/2907; Y10T428/2913; Y10T428/2915; Y10T428/2918; Y10T428/292; Y10T428/2933; Y10T428/2964; Y10T428/2967; Y10T428/2969
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
97 words
A method for obtaining a desired antimicrobial agent concentration in a fiber while passing said fiber through a liquid medium, comprising: providing a fiber containing an initial concentration of antimicrobial agent that is essentially homogenously distributed throughout the fiber cross-section; passing said fiber through a liquid medium which contains the same antimicrobial agent that is contained in said fiber, said antimicrobial agent in said liquid medium being controlled in a concentration relative to the initial concentration in said fiber whereby a desired, predetermined antimicrobial concentration in said fiber following its passage through said liquid medium is obtained.
Claim 2
Independent Claim
97 words
A method for obtaining a desired antimicrobial agent concentration in a fiber while passing said fiber through a liquid medium, comprising: providing a fiber containing an initial concentration of antimicrobial agent that is essentially homogenously distributed throughout the fiber cross-section; passing said fiber through a liquid medium which contains the same antimicrobial agent that is contained in said fiber, said antimicrobial agent in said liquid medium being controlled in a concentration relative to the initial concentration in said fiber whereby a desired, predetermined antimicrobial concentration in said fiber following its passage through said liquid medium is obtained.
Claim 3
Dependent Claim
29 words
The method of claim 1, wherein: the medium contains a concentration of antimicrobial agent sufficient to result in essentially no change in the antimicrobial agent concentration of the fiber.
Claim 4
Dependent Claim
28 words
The method of claim 1, wherein: the medium contains a concentration of antimicrobial agent sufficient to result in an increase in the antimicrobial agent concentration of the fiber.
Claim 5
Dependent Claim
28 words
The method of claim 1, wherein: the medium contains a concentration of antimicrobial agent sufficient to result in a decrease in the antimicrobial agent concentration of the fiber.
Claim 6
Dependent Claim
12 words
The method of claim 1, wherein: said medium is an aqueous medium.
Claim 7
Dependent Claim
26 words
The method of claim 1, wherein: said fiber is a member selected from the group consisting of synthetic fiber, semisynthetic fibers, natural fibers or blends thereof.
Claim 8
Dependent Claim
10 words
The method of claim 5, wherein: said fiber is nylon.
Claim 9
Dependent Claim
11 words
The method of claim 7, wherein: said antimicrobial agent is 10,10'-oxybisphenoxarsine.
Claim 10
Dependent Claim
21 words
The method of claim 8, wherein: a bath volume of fiber weight ratio of from about 100:1 to 1:1 is utilized.
Claim 11
Dependent Claim
16 words
The method of claim 9, wherein: a ratio of from about 30:1 to 10:1 is utilized.
Claim 12
Dependent Claim
25 words
The method of claim 8, wherein: a partitioning distribution of the 10,10'-oxybisphenoxarsine between said fiber and said medium from about 100:1 to 20:1 is utilized.
Claim 13
Dependent Claim
20 words
The method of claim 8, wherein: said 10,10'-oxybisphenoxarsine concentration in the medium is from about 1 ppm to 120 ppm.
Claim 14
Dependent Claim
20 words
The method of claim 12, wherein: said 10,10'-oxybisphenoxarsine concentration in the medium is from about 8 ppm to 15 ppm.
Claim 15
Dependent Claim
20 words
The method of claim 8, wherein: said 10,10'-oxybisphenoxarsine initial concentration is said fiber is from 10 ppm to 3300 ppm.
Claim 16
Dependent Claim
18 words
The method of claim 14, wherein: said 10,10'-oxybisphenoxarsine initial concentration is from about 250 ppm to 500 ppm.
Claim 17
Dependent Claim
20 words
The method of claim 14, wherein: said 10,10'-oxybisphenoxarsine concentration in the medium is from about 1 ppm to 120 ppm.
Claim 18
Dependent Claim
20 words
The method of claim 8, wherein: said aqueous medium also functions to dye the fiber during passage through the medium.
Claim 19
Dependent Claim
13 words
The method of claim 17, wherein: said medium is a beck dye bath.
Claim 20
Dependent Claim
42 words
The method of claim 1, wherein: said antimicrobial agent is a member of the group consisting of phenoxarsines, phenarsazines, maleimides, isoindole dicarboximides having a sulfur atom bonded to the nitrogen atom of the dicarboximide group, halogenated aryl alkanols, isothazolinones, and organotin compounds.
Claim 21
Dependent Claim
11 words
The method of claim 1, wherein: said antimicrobial agent is n-(2-methylnaphthyl)maleimide.
Claim 22
Dependent Claim
11 words
The method of claim 1, wherein: said antimicrobial agent is bis-n-[(1,1,2,2-tetrachloroethyl)]-4-cyclohexene-1,2-dicarboximide.
Claim 23
Dependent Claim
11 words
The method of claim 1, wherein: said antimicrobial agent is n-trichloromethylthio-4-cyclohexene-1,2-dicarboximide.
Claim 24
Dependent Claim
12 words
The method of claim 1, wherein: said antimicrobial agent is n-trichloromethylthio phthalimide.
Claim 25
Dependent Claim
12 words
The method of claim 1, wherein: said antimicrobial agent is 2,4-dichlorobenzyl alcohol.
Claim 26
Dependent Claim
11 words
The method of claim 1, wherein: said antimicrobial agent is 2-(n-octyl-4-isothiazolin-3-one.
Claim 27
Dependent Claim
11 words
The method of claim 1, wherein: said antimicrobial agent is bis(tri-n-butyltin)oxide.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-11-24 | 1990-05-26 | 1990-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-11-24 | 1994-05-26 | 1994-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-11-24 | 1998-05-26 | 1998-11-25 | $7700.00 | Window Closed / Lapsed |