Patent US4764418A successfully refreshed from Google Patents.
US4764418A
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Virucidal tissue products containing water-soluble humectants
Assignee: Kimberly Clark Worldwide Inc
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Filing: 1986-02-28
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Granted: 1988-08-16
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Expires: 2006-02-28
Abstract
Abstract The tactile properties of virucidal tissue products containing carboxylic acids are improved by the incorporation of a water-soluble humectant, such as polyethylene glycol.
Inventors
- 👤 Cary K. Kuenn
- 👤 Daniel S. Westbrook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:58
CPC Classifications
A; A61; A61Q; A61Q17/00; A61Q17/005; A01; A01N; A01N25/00; A01N25/34; A01N37/00; A01N37/36; A61K; A61K8/00; A61K8/02; A61K8/0208; A61Q19/00; D; D21; D21H; D21H17/00; D21H17/02; D21H17/03; D21H17/05; D21H17/06; D21H17/14; D21H17/20; D21H17/33; D21H17/46; D21H17/53; D21H21/00; D21H21/14; D21H21/36; D21H23/00; D21H23/02; D21H23/22; D21H23/50; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10T; Y10T442/00; Y10T442/20; Y10T442/2484; Y10T442/60; Y10T442/659
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
21 words
A tissue product comprising at least one air dry cellulosic web containing a water-soluble humectant and one or more carboxylic acids.
Claim 2
Dependent Claim
21 words
A tissue product comprising at least one air dry cellulosic web containing a water-soluble humectant and one or more carboxylic acids.
Claim 3
Dependent Claim
13 words
The tissue product of claim 1 wherein the water-soluble humectant is polyethylene glycol.
Claim 4
Dependent Claim
13 words
The tissue product of claim 1 wherein the water-soluble humectant is polypropylene glycol.
Claim 5
Dependent Claim
12 words
The tissue product of claim 1 wherein the water-soluble humectant is glycerol.
Claim 6
Dependent Claim
19 words
The tissue product of claim 1 wherein the amount of water-soluble humectant is at least about 0.05 weight percent.
Claim 7
Dependent Claim
21 words
The tissue product of claim 1 wherein the amount of water-soluble humectant is from about 0.05 to about 20 weight percent.
Claim 8
Dependent Claim
21 words
The tissue product of claim 1 wherein the amount of water-soluble humectant is from about 2 to about 6 weight percent.
Claim 9
Dependent Claim
16 words
The tissue product of claim 1 consisting of three plies, wherein the outer plies are untreated.
Claim 10
Dependent Claim
20 words
The tissue product of claim 1 consisting of two plies, wherein both plies contain a water-soluble humectant and carboxylic acid.
Claim 11
Dependent Claim
21 words
The tissue product of claim 1 consisting of two plies, wherein only one ply contains a water-soluble humectant and carboxylic acid.
Claim 12
Dependent Claim
30 words
The tissue product of claim 1 consisting of three plies, wherein the inner ply contains a water-soluble humectant and carboxylic acid and wherein the outer plies contain a water-soluble humectant.
Claim 13
Dependent Claim
32 words
The tissue product of claim 1 consisting of two plies, wherein each ply contains a water-soluble humectant and carboxylic acid on its inner surface and a water-soluble humectant on its outer surface.
Claim 14
Dependent Claim
36 words
The tissue product of claim 1 consisting of two plies, wherein each ply contains a water-soluble humectant on its outer surface and only one ply contains a water-soluble humectant and carboxylic acid on its inner surface.
Claim 15
Dependent Claim
45 words
A tissue product comprising an air dry cellulosic web containing a mixture of from about 2 to about 6 weight percent polyethylene glycol and from about 7 to about 13 weight percent of a virucidal composition comprising citric acid, malic acid, and sodium lauryl sulfate.
Claim 16
Dependent Claim
45 words
A tissue product comprising an air dry cellulosic web containing a mixture of from about 2 to about 6 weight percent polyethylene glycol and from about 7 to about 13 weight percent of a virucidal composition comprising citric acid, malic acid, and sodium lauryl sulfate.
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) | 1991-08-16 | 1992-02-15 | 1992-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-08-16 | 1996-02-15 | 1996-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-08-16 | 2000-02-15 | 2000-08-16 | $7700.00 | Window Closed / Lapsed |