US3978262A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of sizing textile fibers using water-soluble sulfonated polyesters and products so made
Assignee: Rhone Progil SA
•
Filing: 1974-12-26
•
Granted: 1976-08-31
•
Expires: 1994-12-26
Abstract
Abstract Water soluble sulfonated polyesters, made by polycondensation of an aromatic diacid or its anhydride or diester, an unsaturated aliphatic diacid or its anhydride or diester and a saturated glycol and sulfonating, are applied to textile fibers in sufficient amounts to act as sizing agents.
Inventors
- 👤 Jacques Fritz
- 👤 Paul Roux
- 👤 Jean Neel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:55
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/68; C08G63/688; C08G63/6884; C08G63/6886; C08G63/91; C08G63/914; C08G63/918; 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; Y10T442/00; Y10T442/30; Y10T442/3049
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
161 words
A method of sizing textile fiber comprising applying the water-soluble sulfonated polyester which results from the sulfonation and polycondensation of an aromatic diacid, its anhydride, or a diester thereof with a saturated glycol, said sulfonation being on the unsaturated chains, to textile fibers in sufficient amounts to act as sizing agents to give abrasion resistance to the fibers sufficient to permit subsequent weaving, wherein said water-soluble sulfonated polyester comprises the polycondensation product of: a. an aromatic diacid, the anhydride thereof, or the methyl, ethyl, propyl, or butyl diester thereof, said aromatic diacid being selected from the group consisting of orthophthalic acid, isophthalic acid, terephthalic acid, and b. an unsaturated diacid, the anhydride thereof, or the methyl, ethyl, propyl or butyl diester thereof, said aliphatic acid being selected from the group consisting of maleic acid, fumaric acid and itaconic acid, and c. a saturated glycol selected from the group consisting of ethylene glycol, propylene glycol, butylene glycol and di- and tri-ethylene glycols.
Claim 2
Independent Claim
161 words
A method of sizing textile fiber comprising applying the water-soluble sulfonated polyester which results from the sulfonation and polycondensation of an aromatic diacid, its anhydride, or a diester thereof with a saturated glycol, said sulfonation being on the unsaturated chains, to textile fibers in sufficient amounts to act as sizing agents to give abrasion resistance to the fibers sufficient to permit subsequent weaving, wherein said water-soluble sulfonated polyester comprises the polycondensation product of: a. an aromatic diacid, the anhydride thereof, or the methyl, ethyl, propyl, or butyl diester thereof, said aromatic diacid being selected from the group consisting of orthophthalic acid, isophthalic acid, terephthalic acid, and b. an unsaturated diacid, the anhydride thereof, or the methyl, ethyl, propyl or butyl diester thereof, said aliphatic acid being selected from the group consisting of maleic acid, fumaric acid and itaconic acid, and c. a saturated glycol selected from the group consisting of ethylene glycol, propylene glycol, butylene glycol and di- and tri-ethylene glycols.
Claim 3
Dependent Claim
13 words
A method in accordance with claim 1 wherein said textile fibers are man-made.
Claim 4
Dependent Claim
13 words
A sized textile fiber comprising the product of the process of claim 1.
Claim 5
Dependent Claim
12 words
Woven textile products made of the sized textile fibers of claim 3.
Claim 6
Dependent Claim
14 words
A sized man-made textile fiber comprising the product of the process of claim 2.
Claim 7
Dependent Claim
13 words
Woven textile products made of the sized man-made textile fibers of claim 5.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-08-31 | 1980-03-01 | 1980-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-31 | 1984-03-01 | 1984-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-31 | 1988-03-01 | 1988-08-31 | $7700.00 | Window Closed / Lapsed |