Patent JPH01124014A successfully refreshed from Google Patents.
Patent US4443515A successfully refreshed from Google Patents.
US4443515A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antistatic fabrics incorporating specialty textile fibers having high moisture regain and articles produced therefrom
Assignee: ROSENWALD PETER 1125 FIFTH AVE 7TH FLR NEW YORK 10028 (50%) INTEREST
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Filing: 1983-01-27
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Granted: 1984-04-17
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Expires: 2003-01-27
Abstract
Abstract Woven, non-woven and knitted fabrics containing at least 1% by weight of specialty fibers formed from high molecular weight polymers of alpha, beta-ethylenically unsaturated aliphatic carboxylic acids, alpha, beta-ethylenically unsaturated aliphatic sulfonic acids and the hydroxyalkyl esters and glycidyl esters of these acids which are cross-linked at a cross-linking density of from about 1 cross-linkage per from about 40 to about 100 repeating monomeric units of the homopolymer are capable of absorbing up to about 40% by weight of the moisture without loss of mechanical strength and other textile properties. These fabrics have anti-static properties. Sheer fabrics are useful for stockings, panty hose, underwear and the like.
Inventors
- 👤 Sheldon M. Atlas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:12
CPC Classifications
D; D03; D03D; D03D15/00; D03D15/50; D03D15/533; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10S428/922; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/24983; Y10T428/29; Y10T428/2913; Y10T428/2915; Y10T428/2933; Y10T428/2964; Y10T428/2967; Y10T428/31504; Y10T428/31855; Y10T442/00; Y10T442/30; Y10T442/3146; Y10T442/40; Y10T442/444; Y10T442/60; Y10T442/637
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
174 words
A textile fabric which is resistant to accumulation of static charge, said fabric comprising at least one percent by weight of interlocked hydrophilic fibers which are capable of absorbing up to about 50% by weight of the fiber of moisture without lose of mechanical strength and other textile properties, said hydrophilic fibers having a Rockwell hardness in the range of from about 40 to about 60 and consisting of a linear hygroscopic homopolymer of a monomer selected from the group consisting of alpha, beta-ethylenically unsaturated carboxylic acids, alpha, beta-ethylenically unsaturated sulfonic acids, hydroxyalkyl esters of these acids and hydroxyglycidyl esters of these acids, said polymers having a molecular weight in the range of from about 100,000 to about 500,000, a softening point in the range of from about 210° C. to about 245° C. and a glass transition temperature Tg above about 115° C., and said polymer being cross-linked at a cross-linking density in the range of one chemical cross-link bond per from about 40 to about 100 repeating monomeric units of said polymer.
Claim 2
Dependent Claim
174 words
A textile fabric which is resistant to accumulation of static charge, said fabric comprising at least one percent by weight of interlocked hydrophilic fibers which are capable of absorbing up to about 50% by weight of the fiber of moisture without lose of mechanical strength and other textile properties, said hydrophilic fibers having a Rockwell hardness in the range of from about 40 to about 60 and consisting of a linear hygroscopic homopolymer of a monomer selected from the group consisting of alpha, beta-ethylenically unsaturated carboxylic acids, alpha, beta-ethylenically unsaturated sulfonic acids, hydroxyalkyl esters of these acids and hydroxyglycidyl esters of these acids, said polymers having a molecular weight in the range of from about 100,000 to about 500,000, a softening point in the range of from about 210° C. to about 245° C. and a glass transition temperature Tg above about 115° C., and said polymer being cross-linked at a cross-linking density in the range of one chemical cross-link bond per from about 40 to about 100 repeating monomeric units of said polymer.
Claim 3
Dependent Claim
20 words
The fabric of claim 1 which comprises from 2 to 10% by weight of the fabric of said hydrophilic fibers.
Claim 4
Dependent Claim
14 words
The fabric of claim 2 wherein said hydrophilic fibers consist of cross-linked polyacrylic acid.
Claim 5
Dependent Claim
13 words
The fabric of claim 2 wherein said hydrophilic fibers consist of crosslinked poly(hydroxyethylmethacrylate).
Claim 6
Dependent Claim
31 words
The fabric of claim 1 wherein said monomer is selected from the group consisting of acrylic acid, methacrylic acid, crotonic acid, hydroxyethyl methacrylate , hydroxyethylacrylate, hydroxypropylacrylate, hydroxybutylacrylate, hydroxypentylacrylate, hydroxypropylmethacrylate and hydroxybutylmethacrylate.
Claim 7
Dependent Claim
33 words
The fabric of claim 2 which comprises from 90 to 98% by weight of additional textile fibers selected from the group consisting of polyester fibers, polyamide fibers and polyacrylonitrile fibers, or mixtures thereof.
Claim 8
Dependent Claim
42 words
The fabric of claim 6 wherein said fabric weighs less than 2 grams per square foot, has a moisture absorptivity in the range of from about 30 to about 50 and has an electron conductivity of at least 10 -10 reciprocal ohms.
Claim 9
Dependent Claim
26 words
As an article of apparel, an undergarment which is worn in contact with the human anatomy, said undergarment being fabricated from the fabric of claim 1.
Claim 10
Dependent Claim
11 words
The article of apparel of claim 8 which is panty hose.
Claim 11
Dependent Claim
10 words
The article of apparel of claim 8 which is stockings.
Claim 12
Dependent Claim
10 words
The article of apparel of claim 8 which is underwear.
Claim 13
Dependent Claim
13 words
As an article of apparent, panty hose comprising the fabric of claim 7.
Claim 14
Dependent Claim
19 words
The article of apparel of claim 12 wherein said hydrophilic fibers consist of cross-linked polyacrylic acid or cross-linked poly(hydroxyethylmethacrylate).
Claim 15
Dependent Claim
12 words
As an article of apparel, stockings comprising the fabric of claim 7.
Claim 16
Dependent Claim
19 words
The article of apparel of claim 14 wherein said hydrophilic fibers consist of cross-linked polyacrylic acid or cross-linked poly(hydroxyethylmethacrylate).
Claim 17
Dependent Claim
12 words
As an article of apparel, underwear comprising the fabric of claim 7.
Claim 18
Dependent Claim
19 words
The article of apparel of claim 16 wherein said hydrophilic fibers consist of cross-linked polyacrylic acid or cross-linked poly(hydroxyethylmethacrylate).
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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) | 1987-04-17 | 1987-10-17 | 1988-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-04-17 | 1991-10-17 | 1992-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-04-17 | 1995-10-17 | 1996-04-17 | $7700.00 | Window Closed / Lapsed |