Patent US4145469A successfully refreshed from Google Patents.
US4145469A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water-insoluble treated textile and processes therefor
Assignee: BASF Corp
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Filing: 1977-10-11
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Granted: 1979-03-20
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Expires: 1997-10-11
Abstract
Abstract There are disclosed processes for preparing a textile treated with a water-insoluble polyester wherein a linear or branched chain water-soluble sulfonate or phosphate group containing polyester is coated or impregnated onto a textile substrate in combination with a crosslinking agent and subsequent to heating to co-react the crosslinking agent with the polyester, the treated textile substrate is exposed to an aqueous solution of a polyvalent metal ion reactive with said sulfonate or phosphate groups in said polyester. Alternatively, there are disclosed processes for preparing a water-insoluble polyester on a textile substrate wherein a branched chain polyester having sulfonate or phosphate groups is coated or impregnated onto a textile substrate, the substrate is dried and subsequently exposed to an aqueous solution of a polyvalent metal ion reactive with said sulfonate or phosphate groups in said polyester. The processes disclosed herein are useful in the preparation of nonwoven fabrics and finished woven fabrics such as sized fabrics including use as a pigment binder in sizing woven fabrics.
Inventors
- 👤 David D. Newkirk
- 👤 Robert B. Login
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:22
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/507; D06M15/5075; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2964; Y10T428/2967; Y10T428/2969; Y10T442/00; Y10T442/20; Y10T442/2352; Y10T442/2402
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
136 words
A process for preparing a water-insoluble polyester product on a textile substrate comprising: (a) forming a first aqueous solution comprising a cross-linking agent and at least one water-soluble phosphate group-containing branched chain polyester having -PO 3 M units wherein said units form an integral part of the polyester chain, and wherein M is selected from the group consisting of an alkali metal, ammonia, an amine, and combinations thereof, (b) coating or impregnating a textile substrate with said aqueous solution of polyester and cross-linking agent reactants, (c) heating the resultant substrate to cross-link said reactants and (d) exposing said substrate to a second aqueous solution containing about 0.05% to about 2% by weight, based upon the weight of said polyester present on said substrate, of a polyvalent metal ion reactive with said phosphate groups in said polyester.
Claim 2
Dependent Claim
136 words
A process for preparing a water-insoluble polyester product on a textile substrate comprising: (a) forming a first aqueous solution comprising a cross-linking agent and at least one water-soluble phosphate group-containing branched chain polyester having -PO 3 M units wherein said units form an integral part of the polyester chain, and wherein M is selected from the group consisting of an alkali metal, ammonia, an amine, and combinations thereof, (b) coating or impregnating a textile substrate with said aqueous solution of polyester and cross-linking agent reactants, (c) heating the resultant substrate to cross-link said reactants and (d) exposing said substrate to a second aqueous solution containing about 0.05% to about 2% by weight, based upon the weight of said polyester present on said substrate, of a polyvalent metal ion reactive with said phosphate groups in said polyester.
Claim 3
Dependent Claim
39 words
The process of claim 1 wherein said polyvalent metal ion is selected from the group consisting of at least one of Ca ++ , Co ++ , Co +++ , Al +++ , Mg ++ and Fe +++ ions.
Claim 4
Dependent Claim
34 words
The process of claim 2 wherein said polyester and cross-linking agent in said first aqueous solution are coated or impregnated onto a fibrous mat substrate as a binder therefor to produce a non-woven fabric.
Claim 5
Dependent Claim
21 words
The process of claim 3 wherein said cross-linking agent is a thermosetting resin and said fibrous mat comprises a polyester yarn.
Claim 6
Dependent Claim
8 words
The product of the process of claim 1.
Claim 7
Dependent Claim
8 words
The product of the process of claim 3.
Claim 8
Dependent Claim
30 words
The process of claim 2 wherein said polyester and said cross-linking agent in said first aqueous solution are coated or impregnated onto a woven fabric substrate as a finish therefor.
Claim 9
Dependent Claim
12 words
The process of claim 7 wherein said finish additionally comprises a pigment.
Claim 10
Dependent Claim
8 words
The product of the process of claim 8.
Claim 11
Dependent Claim
124 words
A process for preparing a water-insoluble polyester product on a textile substrate comprising: (a) forming a first aqueous solution comprising at least one water-soluble phosphate group-containing, branched chain polyester having -PO 3 M units wherein said units form an integral part of the polyester chain, and wherein M is selected from the group consisting of an alkali metal, ammonia, an amine, and combinations thereof, (b) coating or impregnating a textile substrate with said aqueous solution of polyester, (c) drying the resultant substrate and (d) exposing said substrate to a second aqueous solution comprising about 0.05% to about 2% by weight, based upon the weight of said polyester present on said substrate, of a polyvalent metal ion reactive with said phosphate groups in said polyester.
Claim 12
Dependent Claim
124 words
A process for preparing a water-insoluble polyester product on a textile substrate comprising: (a) forming a first aqueous solution comprising at least one water-soluble phosphate group-containing, branched chain polyester having -PO 3 M units wherein said units form an integral part of the polyester chain, and wherein M is selected from the group consisting of an alkali metal, ammonia, an amine, and combinations thereof, (b) coating or impregnating a textile substrate with said aqueous solution of polyester, (c) drying the resultant substrate and (d) exposing said substrate to a second aqueous solution comprising about 0.05% to about 2% by weight, based upon the weight of said polyester present on said substrate, of a polyvalent metal ion reactive with said phosphate groups in said polyester.
Claim 13
Dependent Claim
39 words
The process of claim 10 wherein said polyvalent metal ions is selected from the group consisting of at least one of Ca ++ , Co ++ , Co +++ , Al +++ , Mg ++ and Fe +++ ions.
Claim 14
Dependent Claim
32 words
The process of claim 10 wherein said polyester in said first aqueous solution is coated or impregnated onto a polyester fibrous mat substrate as a binder therefor to produce a non-woven fabric.
Claim 15
Dependent Claim
8 words
The product of the process of claim 10.
Claim 16
Dependent Claim
8 words
The product of the process of claim 12.
Claim 17
Dependent Claim
26 words
The process of claim 11 wherein said polyester in said first aqueous solution is coated or impregnated onto a woven fabric substrate as a finish therefor.
Claim 18
Dependent Claim
16 words
The process of claim 15 wherein said finish additionally comprises polyvinyl alcohol, starch or mixtures thereof.
References Cited (Backward Citations)
US3288631A
Cited
US3415788A
Cited
US3546008A
Cited
US3734874A
Cited
US3779993A
Cited
US3907736A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-03-19 | 1982-09-18 | 1983-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-03-19 | 1986-09-18 | 1987-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-03-19 | 1990-09-18 | 1991-03-20 | $7700.00 | Window Closed / Lapsed |