Patent US4496363A successfully refreshed from Google Patents.
US4496363A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antimicrobial fabrics
Assignee: Honeywell UOP LLC
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Filing: 1983-11-21
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Granted: 1985-01-29
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Expires: 2003-11-21
Abstract
Abstract An antimicrobial fabric is comprised of an aminoalkylsilylated fabric to which is covalently bonded an antimicrobial agent through an intermediate polyfunctional spacer moiety. The antimicrobial agent is maintained well away from the fabric surface, thereby minimizing surface effects on antimicrobial action.
Inventors
- 👤 Louis J. DeFilippi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:06
CPC Classifications
D; D06; D06M; D06M16/00; D06M13/00; D06M13/50; D06M13/51; D06M13/513
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
40 words
An antimicrobial product comprising an aminoalkylsilylated fabric whose terminal amino functionality is covalently bonded to one terminus of a polyfunctional spacer moiety, with another terminus of the polyfunctional spacer moiety covalently bonded to an amino group of an antimicrobial agent.
Claim 2
Dependent Claim
40 words
An antimicrobial product comprising an aminoalkylsilylated fabric whose terminal amino functionality is covalently bonded to one terminus of a polyfunctional spacer moiety, with another terminus of the polyfunctional spacer moiety covalently bonded to an amino group of an antimicrobial agent.
Claim 3
Dependent Claim
28 words
The product of claim 1 where the fabric is selected from the group consisting of linen, cotton, wool, silk, rayon, partially acetylated cellulose, dextran, poly(vinyl alcohol), and collagen.
Claim 4
Dependent Claim
10 words
The product of claim 2 where the fabric is cotton.
Claim 5
Dependent Claim
46 words
The product of claim 1 where the polyfunctional spacer moiety is selected from the group consisting of dialdehydes with the formula OHC(CH 2 ) n CHO, where n is an integer from 2 to about 8, quinones, trihalo-s-triazenes, diisocyanates, dicarboxylic acid anhydrides, and dicarboxylic acid halides.
Claim 6
Dependent Claim
10 words
The product of claim 4 where the moiety is glutaraldehyde.
Claim 7
Dependent Claim
19 words
The product of claim 4 where the quinone is selected from the group consisting of benzoquinones, naphthoquinones, and anthraquinone.
Claim 8
Dependent Claim
10 words
The product of claim 6 where the quinone is 1,4-benzoquinone.
Claim 9
Dependent Claim
41 words
The product of claim 1 where the antimicrobial agent is selected from the group consisting of the polymyxins, bacitracin, circulin, the octapeptins, lysozyme, lysostaphin, other cellulytic enzymes, vancomycin, ristocetin, the actinoidins, the avoparcins, tyrocidin A, gramicidin S, polyoxin D, and tunicamycin.
Claim 10
Independent Claim
83 words
A method of making an antimicrobial product comprising contacting a fabric with an aminoalkylsilane so as to form an aminoalkylsilyated fabric, reacting the terminal amino functionality with one terminus of a polyfunctional reagent so as to form a covalent bond between thc amino functionality and said terminus, thereafter reacting a second terminus of the polyfunctional reagent with an amino group of an antimicrobial agent so as to form a covalent bond between the amino group and said second terminus, and recovering the product.
Claim 11
Independent Claim
83 words
A method of making an antimicrobial product comprising contacting a fabric with an aminoalkylsilane so as to form an aminoalkylsilyated fabric, reacting the terminal amino functionality with one terminus of a polyfunctional reagent so as to form a covalent bond between thc amino functionality and said terminus, thereafter reacting a second terminus of the polyfunctional reagent with an amino group of an antimicrobial agent so as to form a covalent bond between the amino group and said second terminus, and recovering the product.
Claim 12
Dependent Claim
28 words
The method of claim 9 where the fabric is selected from the group consisting of linens, cotton, wool, silk, rayon, partially acetylated cellulose, dextran, poly(vinyl alcohol), and collagen.
Claim 13
Dependent Claim
10 words
The method of claim 10 where the fabric is cotton.
Claim 14
Dependent Claim
45 words
The method of claim 9 where the polyfunctional reagent is selected from the group consisting of dialdehydes with the formula OHC(CH 2 ) n CHO, where n is an integer from 2 to about 8, quinones, trihalo-s-triazenes, diisocyanates, dicarboxylic acid anhydrides, and dicarboxylic acid halides.
Claim 15
Dependent Claim
11 words
The method of claim 12 where the polyfunctional reagent is glutaraldehyde.
Claim 16
Dependent Claim
19 words
The method of claim 12 where the quinone is selected from the group consisting of benzoquinones, naphthoquinones, and anthraquinone.
Claim 17
Dependent Claim
10 words
The method of claim 14 where the quinone is 1,4-benzoquinone.
Claim 18
Dependent Claim
40 words
The method of claim 9 where the antimicrobial is selected from the group consisting of the polymyxins, bacitracin, circulin, the octapeptins, lysozyme, lysostaphin, other cellulytic enzymes, vancomycin, ristocetin, the actinoidins, the avoparcins, tyrocidin A, gramicidin S, polyoxin D, and tunicamyin.
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) | 1988-01-29 | 1988-07-30 | 1989-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-01-29 | 1992-07-30 | 1993-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-01-29 | 1996-07-30 | 1997-01-29 | $7700.00 | Window Closed / Lapsed |