US5082697A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymer salt complex for fiber or fabric treatment
Assignee: Dow Chemical Co
•
Filing: 1990-05-08
•
Granted: 1992-01-21
•
Expires: 2010-05-08
Abstract
Abstract Natural or synthetic fibers (or fabrics, knits, papers, or webs made of such fibers) are improved in at least abrasion resistance, dye receptivity and/or other properties by bringing together on said fibers (or product made thereof) a liquid dispersion of a dispersible normally-solid polymer having pendent acid groups, such as carboxylic groups, and a reagent which reacts with the carboxylic group to render the polymer non-dispersible. The reagent may be one which supplies metal cations having a valence of at least 2 or it may be a primary amine, secondary amine or tertiary amine, or salts of the amine, a polyamine or salt thereof, or a quaternary ammonium salt. The reagent may precede the polymer onto the substrate, or may follow the application of the polymer onto the substrate.
Inventors
- 👤 Robert T. Patton
- 👤 David M. Hall
- 👤 Walter L. Vaughn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:38
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/263; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2964; Y10T428/2971; Y10T442/00; Y10T442/20; Y10T442/2033; Y10T442/273
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
101 words
A process for modifying a substrate comprising a fibrous material, or a paper, web, or fabric made of said fibrous material, said process consisting essentially of applying to said substrate a dispersible form of a normally-solid polymer having pendent acid groups, the dispersible form being dispersed in a liquid carrier, and a reagent selected from the group consisting of (a) tertiary amines or salts thereof, (b) quaternary ammonium salts, (c) primary amines or salts thereof, and (d) secondary amines or salts thereof, which reagent reacts with said dispersed polymer to render the polymer non-dispersible, and drying to remove the liquid carrier.
Claim 2
Dependent Claim
101 words
A process for modifying a substrate comprising a fibrous material, or a paper, web, or fabric made of said fibrous material, said process consisting essentially of applying to said substrate a dispersible form of a normally-solid polymer having pendent acid groups, the dispersible form being dispersed in a liquid carrier, and a reagent selected from the group consisting of (a) tertiary amines or salts thereof, (b) quaternary ammonium salts, (c) primary amines or salts thereof, and (d) secondary amines or salts thereof, which reagent reacts with said dispersed polymer to render the polymer non-dispersible, and drying to remove the liquid carrier.
Claim 3
Dependent Claim
14 words
The process of claim 1 wherein the dispersible polymer is in the salt form.
Claim 4
Dependent Claim
17 words
The process of claim 1 wherein the dispersible polymer comprises an olefin polymer having pendent carboxylic groups.
Claim 5
Dependent Claim
38 words
The process of claim 3 wherein the acid groups on the olefin polymer are the pendent groups of an unsaturated carboxylic acid comonomer wherein said pendent groups comprise about 2% to about 45% by weight of the polymer.
Claim 6
Dependent Claim
38 words
The process of claim 3 wherein the acid groups on the olefin polymer are the pendent groups of an unsaturated carboxylic acid comonomer wherein said pendent groups comprise about 4% to about 45% by weight of the polymer.
Claim 7
Dependent Claim
38 words
The process of claim 3 wherein the acid groups on the olefin polymer are the pendent groups of an unsaturated carboxylic acid comonomer wherein said pendent groups comprise about 6% to about 25% by weight of the polymer.
Claim 8
Dependent Claim
10 words
The process of claim 1 wherein the substrate comprises fibers.
Claim 9
Dependent Claim
21 words
The process of claim 1 wherein the substrate comprises a fabric, either knitted, woven or non-woven, which is comprised of fibers.
Claim 10
Dependent Claim
15 words
The process of claim 1 wherein the substrate comprises paper which is comprised of fibers.
Claim 11
Dependent Claim
16 words
The process of claim 1 wherein the substrate comprises a web which is comprised of fibers.
Claim 12
Dependent Claim
17 words
The process of claim 1 wherein the dispersible polymer is in the sodium or potassium salt form.
Claim 13
Dependent Claim
31 words
The process of claim 1 wherein the reagent comprises a tertiary amine or salt thereof, a quaternary amine or salt thereof, a polyamine or salt thereof, or a quarternary ammonium salt.
Claim 14
Dependent Claim
21 words
The process of claim 1 wherein the reagent comprises a primary or salt thereof, or a secondary amine or salt thereof.
Claim 15
Dependent Claim
23 words
The process of claim 1 wherein the acid groups are provided by acrylic acid, methacrylic acid, crotonic acid, itaconic acid, or maleic acid.
Claim 16
Dependent Claim
17 words
The process of claim 1 wherein the acid groups are provided by acrylic acid or methacrylic acid.
Claim 17
Dependent Claim
14 words
The process of claim 1 wherein the acid groups are provided by acrylic acid.
Claim 18
Dependent Claim
15 words
The process of claim 1 wherein the dispersible polymer comprises copolymerized ethylene and acrylic acid.
Claim 19
Dependent Claim
25 words
The process of claim 1 wherein the dispersible polymer comprises a homogeneous, uniform, random copolymer of ethylene and acrylic acid or ethylene and methacrylic acid.
Claim 20
Dependent Claim
79 words
An article consisting essentially of a substrate coated with, or impregnated with, an olefin polymer having pendent carboxylic acid groups wherein said acid groups have been complexed with at least one reagent selected from the group consisting of (a) tertiary amines or salts thereof, (b) quaternary ammonium salts, (c) primary amines or salts thereof, and (d) secondary amines or salts thereof, wherein said substrate comprises natural or synthetic fibers, or fabric, paper, knits or web made of said fibers.
Claim 21
Dependent Claim
79 words
An article consisting essentially of a substrate coated with, or impregnated with, an olefin polymer having pendent carboxylic acid groups wherein said acid groups have been complexed with at least one reagent selected from the group consisting of (a) tertiary amines or salts thereof, (b) quaternary ammonium salts, (c) primary amines or salts thereof, and (d) secondary amines or salts thereof, wherein said substrate comprises natural or synthetic fibers, or fabric, paper, knits or web made of said fibers.
Claim 22
Dependent Claim
20 words
The article of claim 19 wherein said olefin polymer comprises a copolymer of ethylene and acrylic acid or methacrylic acid.
Claim 23
Dependent Claim
26 words
The article of claim 19 wherein the reagent is at least one tertiary amine or salt thereof, or polyamine or salt thereof, or quarternary ammonium salt.
Claim 24
Dependent Claim
15 words
The article of claim 19 wherein the reagent is at least one quarternary ammonium salt.
Claim 25
Dependent Claim
23 words
The article of claim 19 wherein the reagent is at least one primary amine or salt thereof, or secondary amine or salt thereof.
References Cited (Backward Citations)
US4351931A
Cited
US3471460A
Cited
US3404134A
Cited
US3472825A
Cited
US3520861A
Cited
US3899389A
Cited
US4181566A
Cited
US4015317A
Cited
US4173669A
Cited
US4248990A
Cited
US4279961A
Cited
US4447570A
Cited
US4599392A
Cited
US4520059A
Cited
US4647951A
Cited
US4661634A
Cited
US4855354A
Cited
US5896055A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-01-20 | 1995-07-22 | 1996-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-01-20 | 1999-07-22 | 2000-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-01-20 | 2003-07-22 | 2004-01-21 | $7700.00 | Window Closed / Lapsed |