Patent US5091102A successfully refreshed from Google Patents.
US5091102A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a dry antimicrobial fabric
Assignee: Nordico Inc
•
Filing: 1990-08-03
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Granted: 1992-02-25
•
Expires: 2010-08-03
Abstract
Abstract A method for making a substantially flexible dry matrix and the result and article capable of cleaning a surface by removing dust and/or organic film and rendering the surface substantially static-free, suitable for use as a garment, air filter or mat, comprising a matrix comprising natural or synthetic, woven, non-woven or knitted fibers, or a flexible foam material, said matrix having been uniformly coated with an amount of treatment solution sufficient to allow said matrix to retain its substantially dry characteristics, said solution comprising between about 25% and 75% of at least one glycol compound, between about 0.2% and 60% of a cationic surfactant, an antimicrobial compound and optionally up to about 45% of a nonionic surfactant may be added to the treatment solution. When removing organic film, the wipe is contacted with water and used to wash the surface, and can then be rung out and used to wipe the surface dry.
Inventors
- 👤 Christopher H. Sheridan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 10:26
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/38; C11D1/62; A; A47; A47L; A47L13/00; A47L13/10; A47L13/16; C11D17/00; C11D17/04; C11D17/049; C11D3/00; C11D3/16; C11D3/37; C11D3/3703; C11D3/3707
Claims Analysis
Total Claims: 59
Claim 1
Independent Claim
152 words
A method of making a substantially flexible dry matrix processing antimicrobial properties to which no water has been added other than that naturally present therein, which comprises: passing a continuous line of a matrix material comprising (a) natural or synthetic, woven, non-woven or knitted fibers, or (b) flexible foam material or combinations thereof between an engraved roll and smooth roll, said engraved roll containing a non-aqueous treatment solution on the surface thereof, coating said matrix material with an antimicrobial effective amount of, or a disinfecting effective amount of said non-aqueous treatment solution from said engraved roll, the amounts of the respective said coatings also being sufficient to allow said matrix to retain its substantially flexible dry characteristics, said non-aqueous treatment solution comprising between about 25% and 75% by weight of a cationic surfactant having antimicrobial or disinfecting properties; and thereafter converting said matrix by forming same into a shaped article of commerce.
Claim 2
Independent Claim
152 words
A method of making a substantially flexible dry matrix processing antimicrobial properties to which no water has been added other than that naturally present therein, which comprises: passing a continuous line of a matrix material comprising (a) natural or synthetic, woven, non-woven or knitted fibers, or (b) flexible foam material or combinations thereof between an engraved roll and smooth roll, said engraved roll containing a non-aqueous treatment solution on the surface thereof, coating said matrix material with an antimicrobial effective amount of, or a disinfecting effective amount of said non-aqueous treatment solution from said engraved roll, the amounts of the respective said coatings also being sufficient to allow said matrix to retain its substantially flexible dry characteristics, said non-aqueous treatment solution comprising between about 25% and 75% by weight of a cationic surfactant having antimicrobial or disinfecting properties; and thereafter converting said matrix by forming same into a shaped article of commerce.
Claim 3
Dependent Claim
19 words
The method defined in claim 1 wherein an antimicrobial garment is formed as a result of said converting step.
Claim 4
Dependent Claim
20 words
The method defined in claim 1 wherein an antimicrobial air filter is formed as a result of said converting step.
Claim 5
Dependent Claim
19 words
The method defined in claim 1 wherein an antimicrobial mat is formed as a result of said converting step.
Claim 6
Dependent Claim
19 words
The method defined in claim 1 wherein a hand towel is formed as a result of said conversion step.
Claim 7
Dependent Claim
29 words
The method defined in claim 1, wherein said matrix is coated with between about 1% and 99% of said treatment solution calculated on the basis weight of said matrix.
Claim 8
Dependent Claim
29 words
The method defined in claim 6 wherein said matrix is coated with between about 3% and 25% of said treatment solution calculated on the basis weight of said matrix.
Claim 9
Dependent Claim
18 words
The method defined in claim 7 wherein said treatment solution contains effective amounts of at least one fragrance.
Claim 10
Dependent Claim
17 words
The method defined in claim 1 wherein said treatment solution contains between about 0.1% and 5% fragrance.
Claim 11
Dependent Claim
12 words
The method defined in claim 7 wherein said matrix comprises a polyolefin.
Claim 12
Dependent Claim
12 words
The method defined in claim 7 wherein said matrix comprises a polyester.
Claim 13
Dependent Claim
11 words
The method defined in claim 7 wherein said matrix comprises nylon.
Claim 14
Dependent Claim
12 words
The method defined in claim 7 wherein said matrix comprises a cellulosic.
Claim 15
Dependent Claim
12 words
The method defined in claim 7 wherein said matrix comprises a cotton.
Claim 16
Dependent Claim
11 words
The method defined in claim 7 wherein said matrix comprises rayon.
Claim 17
Dependent Claim
11 words
The method defined in claim 7 wherein said matrix comprises hemp.
Claim 18
Dependent Claim
13 words
The method defined in claim 7 wherein said matrix comprises a polyester foam.
Claim 19
Dependent Claim
13 words
The method defined in claim 7 wherein said matrix comprises a polyurethane foam.
Claim 20
Dependent Claim
47 words
The method defined in claim 7 wherein said matrix comprises polypropylene fibers coated with between about 3% and 12% of said treatment solution which comprises approximately 40 to 60% propylene glycol and, correspondingly, approximately 40 to 60% of said cationic surfactant with the balance being antimicrobial compound.
Claim 21
Dependent Claim
48 words
The method defined in claim 7 wherein said matrix comprises polypropylene and rayon fibers coated with between about 3% and 12% of said treatment solution comprising approximately 40% to 60% propylene glycol and correspondingly approximately 40% to 60% of said cationic surfactant, with the balance being antimicrobial compound.
Claim 22
Dependent Claim
33 words
The method defined in claim 7 wherein said matrix is polypropylene, and said treatment solution comprises about 49% propylene glycol and about 49% of a cationic surfactant, with the balance being antimicrobial compound.
Claim 23
Dependent Claim
124 words
The method defined in claim 7 wherein said cationic surfactant compound is selected from the group consisting of water soluble quaternary ammonium compounds and polymeric quaternary ammonium compounds of the general formula: ##STR2## wherein R 1 and R 2 are selected from an alkyl group, an alkyl ether group and a hydroxyalkyl group each containing from 1 to 3 carbon atoms, R 3 is an alkyl group containing from 6 to 20 carbon atoms, and R 4 is selected from an alkyl group containing 6 to 20 carbon atoms, an aralkyl group wherein alkyl contains 1 to 2 carbon atoms and heterocyclic radicals, and X - is a suitable anion selected from the group consisting of halide, chloride, bromide, iodide, nitrate, methosulfate or acetate.
Claim 24
Dependent Claim
31 words
The method defined in claim 22 wherein said matrix is selected from the group consisting of polypropylene, polyester, nylon, cotton, hemp, rayon fibers and polyurethane foam, polyether foam and polyester foam.
Claim 25
Dependent Claim
25 words
The method defined in claim 23 wherein said quaternary ammonium compound has the general formula C 8-18 , alkyl dimethyl ammonium chlorides and mixtures thereof.
Claim 26
Dependent Claim
65 words
The method defined in claim 23 wherein the matrix is polypropylene and said treatment solution comprises between about 40% and 60% of a quaternary ammonium compound having the general formula: ##STR3## wherein R 1 and R 2 are alkyl groups having 1-3 carbon atoms; R 3 is an alkyl benzyl group where the alkyl group has 6-22 carbon atoms; R 4 is polypropylene oxide group.
Claim 27
Dependent Claim
66 words
The method defined in claim 22 wherein the matrix is rayon and said treatment solution comprises between about 40% and 60% of a quaternary ammonium compound having the general formula: ##STR4## wherein R 1 and R 2 are alkyl groups having 1-3 carbon atoms; R 3 is an alkyl benzyl group where the alkyl group has 6-22 carbon atoms; R 4 is a polypropylene oxide group.
Claim 28
Dependent Claim
66 words
The method defined in claim 23 wherein the matrix is cellulosic and said treatment solution comprises between about 40% and 60% of a quaternary ammonium compound having the general formula: ##STR5## wherein R 1 and R 2 are alkyl groups having 1-3 carbon atoms; R 3 is an alkyl benzyl group wherein the alkyl group has 6-22 carbon atoms; R 4 is a polypropylene oxide group.
Claim 29
Dependent Claim
76 words
The method defined in claim 23 wherein the matrix is comprised of a layer of cellulose fibers sandwiched between layers of polypropylene fibers and said treatment solution comprises between about 40% and 60% of a quaternary ammonium compound having the general formula: ##STR6## wherein R 1 and R 2 are alkyl groups having 1-3 carbon atoms; R 3 is an alkyl benzyl group where the alkyl group has 6-22 carbon atoms; R 4 is polypropylene oxide.
Claim 30
Dependent Claim
140 words
The method defined in claim 1 wherein said treatment solution contains up to 45% of a nonionic surfactant selected from the group consisting of: (a) the polyethylene oxide condensates of alkyl and dialkyl phenols, having a straight or branched alkyl group of from about 6 to about 12 carbon atoms, with ethylene oxide, wherein the amount of ethylene oxide present is from about 3 to about 25 moles per mole of alkyl phenol; (b) the condensation products of aliphatic alcohols with ethylene oxide of the formula RO(C 2 H 4 O) n H and/or propylene oxide of the formula RO(C 3 H 6 O) n H: wherein in either or both cases R is a straight or branched alkyl group having from about 8 to about 22 carbon atoms, and n is 3 to 40; and (c) polyoxyethylene-polyoxypropylene block copolymers.
Claim 31
Dependent Claim
29 words
The method defined in claim 29, wherein said matrix is coated with between about 1% and 99% of said treatment solution calculated on the basis weight of said matrix.
Claim 32
Dependent Claim
29 words
The method defined in claim 29 wherein said matrix is coated with between about 3% and 25% of said treatment solution calculated on the basis weight of said matrix.
Claim 33
Dependent Claim
15 words
The method defined in claim 31 which contains effective amounts of at least one fragrance.
Claim 34
Dependent Claim
17 words
The method defined in claim 31 wherein said treatment solution contains between about 0.1% and 5% fragrance.
Claim 35
Dependent Claim
12 words
The method defined in claim 31 wherein said matrix comprises a polyolefin.
Claim 36
Dependent Claim
12 words
The method defined in claim 31 wherein said matrix comprises a polyester.
Claim 37
Dependent Claim
11 words
The method defined in claim 31 wherein said matrix comprises nylon.
Claim 38
Dependent Claim
12 words
The method defined in claim 31 wherein said matrix comprises a cellulosic.
Claim 39
Dependent Claim
12 words
The method defined in claim 31 wherein said matrix comprises a cotton.
Claim 40
Dependent Claim
11 words
The method defined in claim 31 wherein said matrix comprises rayon.
Claim 41
Dependent Claim
11 words
The method defined in claim 31 wherein said matrix comprises hemp.
Claim 42
Dependent Claim
12 words
The method defined in claim 31 wherein said matrix comprises polyester foam.
Claim 43
Dependent Claim
13 words
The method defined in claim 31 wherein said matrix comprises a polyurethane foam.
Claim 44
Dependent Claim
51 words
The method defined in claim 31 wherein said matrix comprises polypropylene fibers coated with between about 3% and 12% of said treatment solution which comprises between 25% and 60% propylene glycol, approximately 5% to 25% of said cationic surfactant, up to 45% nonionic surfactant, and the balance being said antimicrobial compound.
Claim 45
Dependent Claim
55 words
The method defined in claim 31 wherein said matrix comprises polypropylene and rayon fibers coated with between about 3% and 12% of said treatment solution comprising between 25% and 60% propylene glycol, approximately 5% to 25% of said cationic surfactant, and up to 45% of a nonionic surfactant and the balance being said antimicrobial compound.
Claim 46
Dependent Claim
125 words
The method defined in claim 31 wherein said cationic surfactant compound is selected from the group consisting of water soluble quaternary ammonium compounds and polymeric quaternary ammonium compounds of the general formula: ##STR7## ##STR8## wherein R 1 and R 2 are selected from an alkyl group, an alkyl ether group and a hydroxyalkyl group each containing from 1 to 3 carbon atoms, R 3 is an alkyl group containing from 6 to 20 carbon atoms, and R 4 is selected from an alkyl group containing 6 to 20 carbon atoms, an aralkyl group wherein alkyl contains 1 to 2 carbon atoms and heterocyclic radicals, and X - is a suitable anion halide, selected from the group consisting of chloride, bromide, iodide, nitrate, methosulfate or acetate.
Claim 47
Dependent Claim
31 words
The method defined in claim 45 wherein said matrix is selected from the group consisting of polypropylene, polyester, nylon, cotton, hemp, rayon fibers and polyurethane foam, polyester foam and polyester foam.
Claim 48
Dependent Claim
25 words
The method defined in claim 46 wherein said quaternary ammonium compound has the general formula C 8-18 alkyl dimethyl benzyl ammonium chlorides and mixtures thereof.
Claim 49
Dependent Claim
75 words
The method defined in claim 46 wherein the matrix is polypropylene and said treatment solution comprises between about 25% and 60% propylene glycol, between 5% and 25% nonionic surfactant, and up to 45% quaternary ammonium compound having the general formula: ##STR9## wherein R 1 and R 2 are alkyl groups having 1-3 carbon atoms; R 3 is an alkyl benzyl group where the alkyl group has 6-22 carbon atoms; R 4 is polypropylene oxide group.
Claim 50
Dependent Claim
78 words
The method defined in claim 45 wherein the matrix is cellulosic and said treatment solution is up to 60% of propylene glycol, 5 to 25% of a nonionic surfactant, between 40% and 60% of a quaternary ammonium compound having the general formula: ##STR10## wherein R 1 and R 2 are alkyl groups having 1-3 carbon atoms; R 3 is an alkyl benzyl group where the alkyl group has 6-22 carbon atoms; R 4 is a propylene oxide group.
Claim 51
Dependent Claim
88 words
The method defined in claim 45 wherein the matrix is comprised of a layer of cellulose fibers sandwiched between layers of polypropylene fibers and said treatment solution is up to 60% propylene glycol; 5-25% of nonionic surfactant and between about 40% and 60% of a quaternary ammonium compound having the general formula: ##STR11## wherein R 1 and R 2 are alkyl groups having 1-3 carbon atoms; R 3 is an alkyl benzyl group where the alkyl group has 6-22 carbon atoms; R 4 is a polypropylene oxide group.
Claim 52
Dependent Claim
46 words
The method defined in claim 46 wherein the quaternary ammonium chloride is N-alkyl dimethyl benzyl ammonium chloride wherein the alkyl groups comprise about 67%, C 12 , 25% C 14 , 7% C 16 , and 1% C 8 , C 10 , C 18 .
Claim 53
Dependent Claim
60 words
The method defined in claim 46 wherein the quaternary ammonium chloride is N-alkyl dimethyl benzyl ammonium chloride wherein the alky groups comprise about 60% C 14 , 30% C 16 , 5% C 12 , 5% C 18 and N-alkyl dimethyl ethyl benzyl ammonium chloride wherein the alkyl groups comprise about 68% C 12 and about 32% C 14 .
Claim 54
Dependent Claim
115 words
The substantially flexible dry matrix made in accordance with the method defined in claim 1 to which no water has been added other than that naturally present therein, said matrix possessing antimicrobial properties, said matrix comprising (a) natural or synthetic woven, non-woven or knitted fibers, or (b) flexible foam material or combinations thereof containing an amount of a non-aqueous treatment solution sufficient to allow said matrix to retain its substantially flexible dry characteristics and its antimicrobial characteristics said non-aqueous treatment solution comprising by weight between about 25% and 75% of at least one glycol compound and between about 0.2% and 60% of a cationic surfactant, and antimicrobial effective amounts of an antimicrobial or disinfectant compound.
Claim 55
Dependent Claim
132 words
The matrix defined in claim 53 which contains up to 45% of nonionic surfactant selected from the group consisting of: (a) the polyethylene oxide condensates of alkyl and dialkyl phenols, having a straight or branched alkyl group of from about 6 to about 12 carbon atoms, with ethylene oxide, wherein the amount of ethylene oxide present is from about 3 to about 25 moles per mole of alkyl phenol; (b) the condensation products of aliphatic alcohols with ethylene oxide of the formula RO(C 2 H.sub. O) n H and/or propylene oxide of the formula RO(CH 3 H 6 )) n H: wherein either or both R is a straight or branched alkyl group having from about 8 to 22 carbon atoms, and n is 3 to 40; and (c) polyoxyethylene-polyoxypropylene block copolymers.
Claim 56
Dependent Claim
13 words
The matrix defined in claim 53 which is formed into an antimicrobial garment.
Claim 57
Dependent Claim
14 words
The matrix defined in claim 53 which is formed into an antimicrobial air filter.
Claim 58
Dependent Claim
13 words
The matrix defined in claim 53 which is formed into an antimicrobial mat.
Claim 59
Dependent Claim
13 words
The matrix defined in claim 53 which is formed into an antimicrobial towel.
References Cited (Backward Citations)
GB760232A
Cited
US3227614A
Cited
US3283357A
Cited
US3786615A
Cited
US3895474A
Cited
US3839234A
Cited
US3897356A
Cited
US4203872A
Cited
US4257924A
Cited
US4443363A
Cited
US4448704A
Cited
US4624890A
Cited
US4587154A
Cited
US4692374A
Cited
US4692374B1
Cited
US4666621A
Cited
AU7244087A
Cited
JPS6456656A
Cited
US4946617A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-02-24 | 1995-08-26 | 1996-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-02-24 | 1999-08-26 | 2000-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-02-24 | 2003-08-26 | 2004-02-25 | $7700.00 | Window Closed / Lapsed |