Patent US1933935A successfully refreshed from Google Patents.
Patent US4346141A successfully refreshed from Google Patents.
US4346141A
Expired / Lapsed
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Iodine-substituted polyfluoroalkyl esters and their use
Assignee: EIDP Inc
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Filing: 1981-03-30
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Granted: 1982-08-24
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Expires: 2001-03-30
Abstract
Abstract Compounds having the formula: ##STR1## wherein R f is perfluoroalkyl containing 4-20 carbons; R 1 is the hydrocarbon residue of either citric, phthalic (o, m or p isomer), benzoic, succinic, chlorendic, trimellitic or pyromellitic acid; and n is a number from 1 to 4, preferably 2 to 4. Process of using compounds (I) to treat (a) textile materials so as to give them dry soil resistance and oil and water repellency, and (b) paper so as to make it repel water and oil.
Inventors
- 👤 William R. Remington
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:30
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/10; D06M13/184; D06M13/207; D06M13/21; D06M13/213; Y; Y10; Y10T; Y10T428/00; Y10T428/23907; Y10T428/23986; Y10T442/00; Y10T442/20; Y10T442/2164; Y10T442/2172; Y10T442/2279; Y10T442/2287
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
42 words
A compound having the formula: ##STR7## wherein R f is a fluorinated aliphatic containing at least 3 carbons; R 1 is the hydrocarbon residue of either citric, succinic, chlorendic, trimellitic or pyromellitic acid; and n is a number from 1 to 4.
Claim 2
Dependent Claim
42 words
A compound having the formula: ##STR7## wherein R f is a fluorinated aliphatic containing at least 3 carbons; R 1 is the hydrocarbon residue of either citric, succinic, chlorendic, trimellitic or pyromellitic acid; and n is a number from 1 to 4.
Claim 3
Dependent Claim
22 words
A compound of claim 1 wherein R f is a perfluoroalkyl containing 3 to 20 carbons and n is 2 to 4.
Claim 4
Dependent Claim
13 words
A compound of claim 2 wherein R 1 is derived from citric acid.
Claim 5
Dependent Claim
13 words
A compound of claim 2 wherein R 1 is derived from trimellitic acid.
Claim 6
Dependent Claim
19 words
A compound of any one of claims 1 3 and 4 wherein R f contains 4 to 16 carbons.
Claim 7
Dependent Claim
18 words
A compound according to claim 5 wherein R f has an average value of 6 to 8 carbons.
Claim 8
Dependent Claim
71 words
A process for imparting oil- or water-repellency, or dry soil resistance to a substrate which comprises applying to the substrate at least one compound having the formula: ##STR8## wherein R f is a fluorinated aliphatic containing at least 3 carbons; R 1 is the hydrocarbon residue of either citric, phthalic (o, m or p isomer), benzoic, succinic, chlorendic, trimellitic or pyromellitic acid; and n is a number from 1 to 4.
Claim 9
Dependent Claim
71 words
A process for imparting oil- or water-repellency, or dry soil resistance to a substrate which comprises applying to the substrate at least one compound having the formula: ##STR8## wherein R f is a fluorinated aliphatic containing at least 3 carbons; R 1 is the hydrocarbon residue of either citric, phthalic (o, m or p isomer), benzoic, succinic, chlorendic, trimellitic or pyromellitic acid; and n is a number from 1 to 4.
Claim 10
Dependent Claim
22 words
A process of claim 7 wherein R f is a perfluoroalkyl containing 3 to 20 carbons and n is 2 to 4.
Claim 11
Dependent Claim
13 words
A process of claim 8 wherein R 1 is derived from citric acid.
Claim 12
Dependent Claim
13 words
A process of claim 8 wherein R 1 is derived from o-phthalic acid.
Claim 13
Dependent Claim
13 words
A process of claim 8 wherein R 1 is derived from isophthalic acid.
Claim 14
Dependent Claim
13 words
A process of claim 8 wherein R 1 is derived from trimellitic acid.
Claim 15
Dependent Claim
17 words
A process of any of claims 7 to 12 wherein R f contains 4 to 16 carbons.
Claim 16
Dependent Claim
17 words
A process of claim 13 wherein R f has an average value of 6 to 8 carbons.
Claim 17
Dependent Claim
63 words
A substrate exhibiting oil- or water-repellency or dry soil resistance and having deposited thereon a compound having the formula: ##STR9## wherein R f is a fluorinated aliphatic containing at least 3 carbons; R 1 is the hydrocarbon residue of either citric, phthalic (o, m or p isomer), benzoic, succinic, chlorendic, trimellitic or pyromellitic acid; and n is a number from 1 to 4.
Claim 18
Dependent Claim
63 words
A substrate exhibiting oil- or water-repellency or dry soil resistance and having deposited thereon a compound having the formula: ##STR9## wherein R f is a fluorinated aliphatic containing at least 3 carbons; R 1 is the hydrocarbon residue of either citric, phthalic (o, m or p isomer), benzoic, succinic, chlorendic, trimellitic or pyromellitic acid; and n is a number from 1 to 4.
Claim 19
Dependent Claim
22 words
A substrate of claim 15 wherein R f is a perfluoroalkyl containing 3 to 20 carbons and n is 2 to 4.
Claim 20
Dependent Claim
13 words
A substrate of claim 16 wherein R 1 is derived from citric acid.
Claim 21
Dependent Claim
13 words
A substrate of claim 16 wherein R 1 is derived from o-phthalic acid.
Claim 22
Dependent Claim
13 words
A substrate of claim 16 wherein R 1 is derived from isophthalic acid.
Claim 23
Dependent Claim
13 words
A substrate of claim 16 wherein R 1 is derived from trimellitic acid.
Claim 24
Dependent Claim
17 words
A substrate of any of claims 15 to 20 wherein R f contains 4 to 16 carbons.
Claim 25
Dependent Claim
17 words
A substrate of claim 21 wherein R f has an average value of 6 to 8 carbons.
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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) | 1985-08-23 | 1986-02-22 | 1986-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-08-23 | 1990-02-22 | 1990-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-08-23 | 1994-02-22 | 1994-08-24 | $7700.00 | Window Closed / Lapsed |