US4430381A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Monocarboxylic acid antimicrobials in fabrics
Assignee: Georgia Pacific Nonwovens LLC
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Filing: 1982-06-25
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Granted: 1984-02-07
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Expires: 2002-06-25
Abstract
Abstract A process for imparting antimicrobial properties to a material comprises applying to the material an external binder system having dissolved therein a salt of a monocarboxylate antimicrobial agent, and then applying to the material a water-proofing treatment having dissolved therein a substantially nonantimicrobial proton donor.
Inventors
- 👤 Susan L. Harvey
- 👤 James L. Cresswell
- 👤 B. Jerry L. Huff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:02
CPC Classifications
A; A01; A01N; A01N37/00; A01N37/02; A01N37/06; Y; Y10; Y10T; Y10T442/00; Y10T442/20; Y10T442/2221; Y10T442/2525
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
61 words
A process for imparting antimicrobial properties to a material, said process comprising: (a) applying an external binder system to said material, said external binder system comprising a salt of at least one monocarboxylate antimicrobial agent or mixtures thereof; (b) applying a waterproofing treatment to said material, said treatment comprising at least one substantially nonantimicrobial proton donor; and (c) drying said material.
Claim 2
Dependent Claim
61 words
A process for imparting antimicrobial properties to a material, said process comprising: (a) applying an external binder system to said material, said external binder system comprising a salt of at least one monocarboxylate antimicrobial agent or mixtures thereof; (b) applying a waterproofing treatment to said material, said treatment comprising at least one substantially nonantimicrobial proton donor; and (c) drying said material.
Claim 3
Dependent Claim
15 words
The process of claim 1 wherein said material is a nonwoven fabric comprising cellulosic fibers.
Claim 4
Dependent Claim
21 words
The process of claim 1 wherein said monocarboxylate antimicrobial agent comprises a C 3 -C 12 alkane, alkene, or alkyne monocarboxylate.
Claim 5
Dependent Claim
18 words
The process of claim 2 wherein said monocarboxylate antimicrobial agent comprises a C 6 -C 10 n-alkane monocarboxylate.
Claim 6
Dependent Claim
19 words
The process of claim 2 wherein said monocarboxylate antimicrobial agent comprises a C 8 or C 10 n-alkane monocarboxylate.
Claim 7
Dependent Claim
46 words
The process of claim 3 wherein said waterproofing treatment is an aqueous emulsion and said substantially nonantimicrobial proton donor is an acid selected from the group of citric acid, tartaric acid, malic acid, fumaric acid, maleic acid, malonic acid, ascorbic acid, barbituric acid, and mixtures thereof.
Claim 8
Dependent Claim
46 words
The process of claim 4 wherein said waterproofing treatment is an aqueous emulsion and said substantially nonantimicrobial proton donor is an acid selected from the group of citric acid, tartaric acid, malic acid, fumaric acid, maleic acid, malonic acid, ascorbic acid, barbituric acid, and mixtures thereof.
Claim 9
Dependent Claim
8 words
The nonwoven fabric made according to claim 7.
Claim 10
Dependent Claim
22 words
The process of claim 5 wherein said waterproofing treatment is an aqueous emulsion and said substantially nonantimicrobial proton donor is citric acid.
Claim 11
Dependent Claim
8 words
The nonwoven fabric made according to claim 9.
Claim 12
Dependent Claim
77 words
The process of claim 3 wherein said external binder system is an aqueous latex emulsion applied such that a deposition of from about 0.1 g/m 2 to about 20 g/m 2 of said antimicrobial agent is provided on said material, said material is dried prior to said application of waterproofing treatment, and said waterproofing treatment application provides a deposition of from about 0.1 g/m 2 to about 20 g/m 2 of said proton donor on said material.
Claim 13
Dependent Claim
77 words
The process of claim 6 wherein said external binder system is an aqueous latex emulsion applied such that a deposition of from about 0.1 g/m 2 to about 20 g/m 2 of said antimicrobial agent is provided on said material, said material is dried prior to said application of waterproofing treatment, and said waterproofing treatment application provides a deposition of from about 0.1 g/m 2 to about 20 g/m 2 of said proton donor on said material.
Claim 14
Dependent Claim
101 words
The process of claim 4 wherein said external binder system is an aqueous latex emulsion, applied such that a deposition of from about 2 g/m 2 to about 20 g/m 2 of said antimicrobial agent is provided on said nonwoven fabric, said nonwoven fabric is dried prior to said application of waterproofing treatment and said waterproofing treatment application provides a deposition of from about 1 g/m 2 to about 20 g/m 2 of said proton donor to said nonwoven fabric such that the surface pH of said nonwoven fabric when wetted after step (c) is from about 2.8 to about 5.0.
Claim 15
Dependent Claim
101 words
The process of claim 7 wherein said external binder system is an aqueous latex emulsion, applied such that a deposition of from about 2 g/m 2 to about 20 g/m 2 of said antimicrobial agent is provided on said nonwoven fabric, said nonwoven fabric is dried prior to said application of waterproofing treatment and said waterproofing treatment application provides a deposition of from about 1 g/m 2 to about 20 g/m 2 of said proton donor to said nonwoven fabric such that the surface pH of said nonwoven fabric when wetted after step (c) is from about 2.8 to about 5.0.
Claim 16
Dependent Claim
8 words
The nonwoven fabric made according to claim 14.
Claim 17
Dependent Claim
116 words
The process of claim 5 wherein said external binder system is an aqueous latex emulsion, applied such that a deposition of from about 5 g/m 2 to about 10 g/m 2 of said antimicrobial agent is provided on said nonwoven fabric, said nonwoven fabric is dried prior to said application of waterproofing treatment, said waterproofing treatment is an aqueous emulsion, said substantially nonantimicrobial proton donor is citric acid, and said waterproofing treatment application provides a deposition of from about 3 g/m 2 to about 10 g/m 2 of said proton donor to said nonwoven fabric such that the surface pH of said nonwoven fabric when wetted after step (c) is from about 3.0 to about 4.0.
Claim 18
Dependent Claim
8 words
The nonwoven fabric made according to claim 16.
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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) | 1987-02-06 | 1987-08-08 | 1988-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-02-06 | 1991-08-08 | 1992-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-02-06 | 1995-08-08 | 1996-02-07 | $7700.00 | Window Closed / Lapsed |