US4043753A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grafting process for preparing a polyester fabric having desirable stain-release, antisoil-redeposition, antistatic and hydrophilic properties
Assignee: Eastman Kodak Co
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Filing: 1976-03-01
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Granted: 1977-08-23
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Expires: 1996-03-01
Abstract
Abstract Disclosed is a process for preparing fabrics which exhibit desirable stain-release, antisoil-redeposition, antistatic and hydrophilic properties. According to this process, a fabric comprised of a fiber of poly(ethylene terephthalate) modified with p-carboxycinnamic acid is contacted with acrylic acid and a free radical initiator under grafting reaction conditions.
Inventors
- 👤 Robert B. Barbee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:54
CPC Classifications
D; D06; D06M; D06M14/00; D06M14/08; D06M14/12; D06M14/14
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
56 words
A process comprising A. preparing a textile fabric of fibers formed from a polyester of 1. terephthalic acid, 2. ethylene glycol, and 3. based on the moles of terephthalic acid, from 1 to 10 mole percent p-carboxycinnamic acid, and B. contacting the textile fabric, under grafting reaction conditions, with acrylic acid and a free radical initiator.
Claim 2
Dependent Claim
56 words
A process comprising A. preparing a textile fabric of fibers formed from a polyester of 1. terephthalic acid, 2. ethylene glycol, and 3. based on the moles of terephthalic acid, from 1 to 10 mole percent p-carboxycinnamic acid, and B. contacting the textile fabric, under grafting reaction conditions, with acrylic acid and a free radical initiator.
Claim 3
Dependent Claim
22 words
The process of Claim 1 wherein the textile fabric is contacting with acrylic acid and lauroyl peroxide in the presence of perchloroethylene.
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) | 1980-08-22 | 1981-02-21 | 1981-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-22 | 1985-02-21 | 1985-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-22 | 1989-02-21 | 1989-08-23 | $7700.00 | Window Closed / Lapsed |