US4374639A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for preventing static electricity on laundered textile materials
Assignee: ALDIV TRANSPORTATION Inc
•
Filing: 1980-04-03
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Granted: 1983-02-22
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Expires: 2000-04-03
Abstract
Abstract A system for preventing static cling among textile materials such as clothes in a washer by using in a liquid bath containing the textile materials a static preventing member having a textile substrate or the like reacted with a static preventing material such as N-trisubstituted ammonium 2 hydroxy 3 halopropryl compounds or salts of epoxy propyl ammonium compounds such as glycidyltrimethylammonium chloride. Such static preventing members, and the methods of making and using same are included.
Inventors
- 👤 Barbara T. Claiborne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:26
CPC Classifications
C; C11; C11D; C11D17/00; C11D17/04; C11D17/041; C11D17/046; D; D06; D06F; D06F58/00; D06F58/30; D06M; D06M13/00; D06M13/322; D06M13/385; D06M13/46; D06M13/463; D06F58/20; D06F58/203; Y; Y10; Y10T; Y10T442/00; Y10T442/20; Y10T442/2418; Y10T442/2459
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
160 words
A method of preventing accumulation of static electricity on textile materials which have been wetted in a bath and then tumble dried, comprising: providing a laundry bath with a plurality of textile materials therein, placing in said bath a static electricity preventing member comprising a textile substrate material reacted with a static electricity preventing material, said material comprising a compound from the group consisting of: a N-trisubstituted ammonium-2-hydroxy-3-halopropyl compound having the general formula ##STR3## or a salt of epoxy propyl ammonium having the general formula ##STR4## wherein X is a halogen radical, Y is chloride, bromide, sulfate or sulfonate, and the R's are methyl, ethyl, butyl or benzyl groups or an hydroxyl substituted derivative thereof, said static preventing member being in said bath during at least the final rinse stage of a laundering procedure, and then tumble drying said plurality of textile materials without the static preventing member, whereby said textile materials when thus dried do not exhibit static cling.
Claim 2
Independent Claim
160 words
A method of preventing accumulation of static electricity on textile materials which have been wetted in a bath and then tumble dried, comprising: providing a laundry bath with a plurality of textile materials therein, placing in said bath a static electricity preventing member comprising a textile substrate material reacted with a static electricity preventing material, said material comprising a compound from the group consisting of: a N-trisubstituted ammonium-2-hydroxy-3-halopropyl compound having the general formula ##STR3## or a salt of epoxy propyl ammonium having the general formula ##STR4## wherein X is a halogen radical, Y is chloride, bromide, sulfate or sulfonate, and the R's are methyl, ethyl, butyl or benzyl groups or an hydroxyl substituted derivative thereof, said static preventing member being in said bath during at least the final rinse stage of a laundering procedure, and then tumble drying said plurality of textile materials without the static preventing member, whereby said textile materials when thus dried do not exhibit static cling.
Claim 3
Dependent Claim
23 words
The method of claim 1, wherein the steps of claim 1 are repeated a plurality of times using the same static preventing member.
Claim 4
Dependent Claim
12 words
The method of claim 1 wherein said substrate is a cellulosic material.
Claim 5
Dependent Claim
12 words
The method of claim 1 wherein said substrate is a cotton fabric.
Claim 6
Dependent Claim
10 words
The method of claim 3 wherein said substrate is non-woven.
Claim 7
Dependent Claim
14 words
The method of claim 1 wherein said static electricity preventing material is glycidyltrimethylammonium chloride.
Claim 8
Dependent Claim
21 words
The method of claim 1 wherein said substrate is a non-woven cellulosic material and the static preventing material is glycidyltrimethylammonium chloride.
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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) | 1986-02-21 | 1986-08-23 | 1987-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-02-21 | 1990-08-23 | 1991-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-02-21 | 1994-08-23 | 1995-02-22 | $7700.00 | Window Closed / Lapsed |