US4100340A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copolymers containing perfluoroalkyl groups
Assignee: Hoechst AG
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Filing: 1977-03-02
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Granted: 1978-07-11
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Expires: 1997-03-02
Abstract
Abstract Copolymers of (A) perfluoroalkylethyl acrylate CnF2n+1CH2CH2OCOCH=CH2 (B) higher alkyl acrylate CmH2m+1OCOCH=CH2 (C) vinylidene chloride CH2=CCl2 (D) acroylbutylurethane CH2=CH-CONHCOOC4H9 at the weight ratio of 1(A) : 0.22-0.39(B) : 0.45-0.85(C) : 0.01-0.15(D) n being 6, 8, 10, 12 or 14 and m being a number from 10 to 16.
Inventors
- 👤 Karl Waldmann
- 👤 Gunter Schnabel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:19
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/263; D06M15/277; C; C08; C08F; C08F214/00; C08F214/02; C08F214/04; C08F214/08; C08F220/00; C08F220/02; C08F220/10; C08F220/12; C08F220/16; C08F220/18; C08F220/1812; C08F220/22; C08F220/24; C08F220/34; C08F220/343; Y; Y10; Y10S; Y10S428/00; Y10S428/904; Y10T; Y10T428/00; Y10T428/31504; Y10T428/3154; Y10T428/31855; Y10T428/31909; Y10T428/31971; Y10T428/31975; Y10T428/31978; Y10T428/31982
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
68 words
Copolymers of (A) perfluoroalkylethyl acrylate C n F 2n+1 CH 2 CH 2 OCOCH═CH 2 (b) higher alkyl acrylate C m H 2m+1 OCOCH═CH 2 (c) vinylidene chloride CH 2 = CCl 2 (D) acroylbutylurethane Ch 2 ═ch--conhcooc 4 h 9 at the weight ratio of 1(A) : 0.22-0.39(B) : 0.45-0.85(C)-0.01-0.15(D) n being 6, 8, 10, 12 or 14 and m being a number from 10 to 16.
Claim 2
Dependent Claim
68 words
Copolymers of (A) perfluoroalkylethyl acrylate C n F 2n+1 CH 2 CH 2 OCOCH═CH 2 (b) higher alkyl acrylate C m H 2m+1 OCOCH═CH 2 (c) vinylidene chloride CH 2 = CCl 2 (D) acroylbutylurethane Ch 2 ═ch--conhcooc 4 h 9 at the weight ratio of 1(A) : 0.22-0.39(B) : 0.45-0.85(C)-0.01-0.15(D) n being 6, 8, 10, 12 or 14 and m being a number from 10 to 16.
Claim 3
Dependent Claim
17 words
Copolymers according to claim 1 at the weight ratio of 1(A) : 0.24-0.36(B) : 0.48-0.80(C) : 0.02-0.14(D).
Claim 4
Dependent Claim
17 words
Copolymers according to claim 1 at the weight ratio of 1(A) : 0.25-0.34(B) : 0.50-0.70(C) : 0.03-0.13(D).
Claim 5
Dependent Claim
34 words
A process for the manufacture of copolymers having oil- and water-repellent properties comprising the copolymerization of the monomers recited in claim 1 at the weight ratios specified in claim 1 in a homogeneous solution.
Claim 6
Dependent Claim
22 words
A process according to claim 4, comprising the polymerization of the monomers specified in claim 2 at the above specified weight ratios.
Claim 7
Dependent Claim
20 words
A process according to claim 4, comprising the polymerization of the monomers at the weight ratios stated in claim 3.
References Cited (Backward Citations)
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US3491169A
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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) | 1981-07-10 | 1982-01-09 | 1982-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-07-10 | 1986-01-09 | 1986-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-07-10 | 1990-01-09 | 1990-07-11 | $7700.00 | Window Closed / Lapsed |