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US4897304A Expired / Lapsed US ⏱️ 0.0 years remaining

Virucidal composition, the method of use and the product therefor

Assignee: Kimberly Clark Worldwide Inc
•
Filing: 1986-11-12
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Granted: 1990-01-30
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Expires: 2006-11-12
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Abstract

Abstract Highly effective and useful method, composition and product for annihilating harmful respiratory viruses and inhibiting the spread of diseases, including the common cold. The product includes one or more carboxylic acids such as citric, malic, succinic, benzoic and the like in an effective amount and may also include a surfactant. Embodiments include impregnated or coated substrates such as facial tissue, nonwoven materials, and the like. In one application, treated tissue, when substituted for ordinary facial tissue and used in wiping the nasal area of a person suffering from a virus-borne infection is effective in annihilating the virus on contact with the treated tissue. This, in turn, prevents the spread of the virus-related illness.

Inventors

  • 👤 Shafi U. Hossain
  • 👤 Kenneth R. Smith

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 10:12
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/70; A61K31/00; A61K31/185; A61K31/19; Y; Y10; Y10T; Y10T442/00; Y10T442/20; Y10T442/2525

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 119 words
A virucidal and/or germicidal garment product comprising, (a) a substrate selected from the group consisting of cellulosic webs and nonwoven webs, (b) said substrate containing a virucidally or germicidally effective amount of a composition comprising: (i) from about 0.05 to about 5 weight percent, based on the dry weight of the substrate, of an anionic surfactant, and (ii) at least about 2 percent, based on the dry weight of the substrate, of at least one acid having the structure: R--COOH wherein R is a radical selected from lower alkyl radicals, or substituted derivatives of such acids selected from the group consisting of citric, malic, succinic, benzoic, and substituted derivatives thereof, and mixtures of two or more of said acids.
Claim 2
Dependent Claim 119 words
A virucidal and/or germicidal garment product comprising, (a) a substrate selected from the group consisting of cellulosic webs and nonwoven webs, (b) said substrate containing a virucidally or germicidally effective amount of a composition comprising: (i) from about 0.05 to about 5 weight percent, based on the dry weight of the substrate, of an anionic surfactant, and (ii) at least about 2 percent, based on the dry weight of the substrate, of at least one acid having the structure: R--COOH wherein R is a radical selected from lower alkyl radicals, or substituted derivatives of such acids selected from the group consisting of citric, malic, succinic, benzoic, and substituted derivatives thereof, and mixtures of two or more of said acids.
Claim 3
Dependent Claim 25 words
The product of claim 1 wherein said surfactant is an anionic surfactant selected from the group consisting of alkyl sulfonate salts and alkyl sulfate salts.
Claim 4
Dependent Claim 9 words
The garment of claim 1, comprising a hospital gown.
Claim 5
Dependent Claim 9 words
The garment of claim 1, comprising a surgical drape.
Claim 6
Dependent Claim 10 words
The garment of claim 1, comprising a bedsheet or pillowcase.
Claim 7
Dependent Claim 8 words
The garment of claim 1, comprising a facemask.

References Cited (Backward Citations)

US2056753A Cited
US3699958A Cited
US4467799A Cited
US4600002A Cited
US4711237A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1993-01-29 1993-07-31 1994-01-30 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1997-01-29 1997-07-31 1998-01-30 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2001-01-29 2001-07-31 2002-01-30 $7700.00 Window Closed / Lapsed

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