US5711994A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treated nonwoven fabrics
Assignee: Kimberly Clark Worldwide Inc
•
Filing: 1995-12-08
•
Granted: 1998-01-27
•
Expires: 2015-12-08
Abstract
Abstract Improved method of treating nonwovens with a neat or nearly neat treating composition at least 90% by weight active ingredients by subjecting the nonwoven to a uniform concentration of said composition in an atomized form within a treating station. Drying and its potentially adverse effects are substantially eliminated.
Inventors
- 👤 Michael David Powers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:33
CPC Classifications
B; B05; B05D; B05D1/00; B05D1/02; D; D04; D04H; D04H1/00; D04H1/40; D04H1/58; D04H1/64; D06; D06B; D06B1/00; D06B1/02
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
137 words
Method of treating a web with a treatment agent to impart a desired property selected from the group consisting of wettability, conductivity, and repellency to said web comprising the steps of: a. providing a source of said web; b. providing said treatment agent at a treating station; c. forming a mist of said treatment agent of at least 80% atomization and mist particle size up to about 100 microns at said treating station; d. exposing said web to said mist at said treating station for a time period sufficient to add an amount of said treatment agent at a concentration of no more than 10% by weight solvent effective to impart said desired property to said web; e. applying a vacuum to draw said particles into said web; and f. removing said web from said treating station.
Claim 2
Dependent Claim
137 words
Method of treating a web with a treatment agent to impart a desired property selected from the group consisting of wettability, conductivity, and repellency to said web comprising the steps of: a. providing a source of said web; b. providing said treatment agent at a treating station; c. forming a mist of said treatment agent of at least 80% atomization and mist particle size up to about 100 microns at said treating station; d. exposing said web to said mist at said treating station for a time period sufficient to add an amount of said treatment agent at a concentration of no more than 10% by weight solvent effective to impart said desired property to said web; e. applying a vacuum to draw said particles into said web; and f. removing said web from said treating station.
Claim 3
Dependent Claim
15 words
The method of claim 1 wherein said treatment agent is provided as a neat composition.
Claim 4
Dependent Claim
12 words
The method of claim 1 wherein said web comprises a propylene polymer.
Claim 5
Dependent Claim
12 words
The method of claim 3 wherein said web comprises a nonwoven fabric.
Claim 6
Dependent Claim
28 words
The method of claim 4 wherein said treatment agent is selected from the group consisting of octyl phenol or organosilicone surfactants, phosphate salt antistatic agents, and fluorocarbon additives.
Claim 7
Dependent Claim
147 words
Method of treating a nonwoven fabric comprising a propylene polymer with a treatment agent to impart a desired property selected from the group consisting of wettability, conductivity and repellency to said nonwoven fabric comprising the steps of: a. providing a source of said nonwoven fabric; b. providing said treatment agent at a concentration of at least 90% by weight at a treating station; c. forming a mist of said treatment agent of at least about 80% atomization and mist particle size up to about 100 microns at said treating station; d. exposing said nonwoven fabric to said mist at said treating station for a time period sufficient to add an amount of said treatment agent effective to impart said desired property to said nonwoven fabric; e. applying a vacuum to draw said particles into said nonwoven fabric; and f. removing said nonwoven fabric from said treating station.
Claim 8
Dependent Claim
147 words
Method of treating a nonwoven fabric comprising a propylene polymer with a treatment agent to impart a desired property selected from the group consisting of wettability, conductivity and repellency to said nonwoven fabric comprising the steps of: a. providing a source of said nonwoven fabric; b. providing said treatment agent at a concentration of at least 90% by weight at a treating station; c. forming a mist of said treatment agent of at least about 80% atomization and mist particle size up to about 100 microns at said treating station; d. exposing said nonwoven fabric to said mist at said treating station for a time period sufficient to add an amount of said treatment agent effective to impart said desired property to said nonwoven fabric; e. applying a vacuum to draw said particles into said nonwoven fabric; and f. removing said nonwoven fabric from said treating station.
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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) | 2001-01-26 | 2001-07-28 | 2002-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-01-26 | 2005-07-28 | 2006-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-01-26 | 2009-07-28 | 2010-01-27 | $7700.00 | Window Closed / Lapsed |