US4824689A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing virucidal tissue products containing water-soluble humectants
Assignee: Kimberly Clark Worldwide Inc
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Filing: 1987-11-02
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Granted: 1989-04-25
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Expires: 2007-11-02
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. The product is made by blending a water-soluble humectant with a carboxylic acid-containing virucidal composition at a temperature of from about 100° C. to about 150° C. to solubilize the blend, and applying the solubilized blend to the surface of a cellulosic web.
Inventors
- 👤 Cary K. Kuenn
- 👤 Daniel S. Westbrook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:43
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
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
67 words
A method for making a tissue produce base sheet comprising: (a) blending a water-soluble humectant with a carboxylic acid-containing virucidal composition at a temperature of from about 100° C. to about 150° C. to solubilize the blend without degrading the carboxylic acid; (b) applying the solubilized blend to the surface of a cellulosic web; and (c) cooling the web to reduce the tackiness of the solubilized blend.
Claim 2
Independent Claim
67 words
A method for making a tissue produce base sheet comprising: (a) blending a water-soluble humectant with a carboxylic acid-containing virucidal composition at a temperature of from about 100° C. to about 150° C. to solubilize the blend without degrading the carboxylic acid; (b) applying the solubilized blend to the surface of a cellulosic web; and (c) cooling the web to reduce the tackiness of the solubilized blend.
Claim 3
Dependent Claim
19 words
The method of claim 1 wherein the web is cooled to a temperature of about 40° C. or less.
Claim 4
Independent Claim
79 words
A method for making a tissue product base sheet comprising: (a) blending polyethylene glycol with a malic acid-containing virucidal composition at a temperature from about 100° C. to about 125° C. to form a solution; (b) spraying or printing the solution onto the surface of a cellulosic web; (c) cooling the cellulosic web to a temperature below about 40° C. to reduce the tackiness of the solution; and (d) combining the cooled web with one or more cellulosic webs.
Claim 5
Independent Claim
79 words
A method for making a tissue product base sheet comprising: (a) blending polyethylene glycol with a malic acid-containing virucidal composition at a temperature from about 100° C. to about 125° C. to form a solution; (b) spraying or printing the solution onto the surface of a cellulosic web; (c) cooling the cellulosic web to a temperature below about 40° C. to reduce the tackiness of the solution; and (d) combining the cooled web with one or more cellulosic webs.
References Cited (Backward Citations)
US3138533A
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US3227614A
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US3305392A
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CA932936A
Cited
GB1424692A
Cited
FR2538238A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-04-24 | 1992-10-24 | 1993-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-04-24 | 1996-10-24 | 1997-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-04-24 | 2000-10-24 | 2001-04-25 | $7700.00 | Window Closed / Lapsed |