US4563493A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Omega-perfluoroalkyl-1,2-epoxyalkane copolymer and use thereof
Assignee: Daikin Industries Ltd
•
Filing: 1985-02-04
•
Granted: 1986-01-07
•
Expires: 2005-02-04
Abstract
Abstract A novel copolymer comprising (a) repeating units of the formula: -OCH[(CH2)pRf]CH2-(Ia) or -OCH2CH[(CH2)pRf]-(Ib) wherein Rf is C3-C21 perfluoroalkyl and p is an integer of 1 to 10 and (b) repeating units of the formula: -(OCH2)m(CH2)n-(II) wherein m is an integer of 1 to 4 and n is an integer of 2 to 10 when m is 1, an integer of 1 to 8 when m is 2 or an integer of 0 to (12-2m) when m is 3 or 4, -OCH2CR1R2CH2-(III) wherein R1 and R2 are each hydrogen, CH3, CH2Cl, CH2F, CH2OCH3, CH2OC2H5, CH2OCOCH3, CH2OC6H5, CH2OH or CH2CN provided that at least one of them is not hydrogen, -OCH2(OCH2CH2)q-(IV) wherein q is 2 or 3, and/or -[(R3)r-COO]-(V) wherein R3 is CH2 or CF2 and r is an integer of 2 to 5, which is particularly useful as a water- and oil-repellent and a non-tackifier.
Inventors
- 👤 Shosin Fukui
- 👤 Masayoshi Shinjo
- 👤 Yasuko Okazaki
- 👤 Hirokazu Aoyama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:37
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/40; C08G63/42; C08G4/00; C08G63/68; C08G63/682; C08G63/6822; C08G65/00; C08G65/02; C08G65/04; C08G65/22; C08G65/223; C08G65/226
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
192 words
A copolymer comprising (a) repeating units of the formula: --OCH[(CH.sub.2).sub.p R.sub.f ]CH.sub.2 -- (Ia) or --OCH.sub.2 CH[(CH.sub.2).sub.p R.sub.f ]-- (Ib) wherein R f is C 3 -C 21 perfluoroalkyl and p is an integer of 1 and 10 and (b) repeating units of the formula: --(OCH.sub.2).sub.m (CH.sub.2).sub.n -- (II) wherein m is an integer of 1 to 4 and n is an integer of 2 to 10 when m is 1, an integer of 1 to 8 when m is 2 or an integer of 0 to (12-2m) when m is 3 or 4, --OCH.sub.2 CR.sup.1 R.sup.2 CH.sub.2 -- (III) wherein R 1 and R 2 are each hydrogen, CH 3 , CH 2 Cl, CH 2 F, CH 2 OCH 3 , CH 2 OC 2 H 5 , CH 2 OCOCH 3 , CH 2 OC 6 H 5 , CH 2 OH or CH 2 CN provided that at least one of them is not hydrogen, --OCH.sub.2 (OCH.sub.2 CH.sub.2).sub.q -- (IV) wherein q is 2 or 3, and/or --[(R.sup.3).sub.r --COO]-- (V) wherein R 3 is CH 2 or CF 2 and r is an integer of 2 to 5.
Claim 2
Dependent Claim
192 words
A copolymer comprising (a) repeating units of the formula: --OCH[(CH.sub.2).sub.p R.sub.f ]CH.sub.2 -- (Ia) or --OCH.sub.2 CH[(CH.sub.2).sub.p R.sub.f ]-- (Ib) wherein R f is C 3 -C 21 perfluoroalkyl and p is an integer of 1 and 10 and (b) repeating units of the formula: --(OCH.sub.2).sub.m (CH.sub.2).sub.n -- (II) wherein m is an integer of 1 to 4 and n is an integer of 2 to 10 when m is 1, an integer of 1 to 8 when m is 2 or an integer of 0 to (12-2m) when m is 3 or 4, --OCH.sub.2 CR.sup.1 R.sup.2 CH.sub.2 -- (III) wherein R 1 and R 2 are each hydrogen, CH 3 , CH 2 Cl, CH 2 F, CH 2 OCH 3 , CH 2 OC 2 H 5 , CH 2 OCOCH 3 , CH 2 OC 6 H 5 , CH 2 OH or CH 2 CN provided that at least one of them is not hydrogen, --OCH.sub.2 (OCH.sub.2 CH.sub.2).sub.q -- (IV) wherein q is 2 or 3, and/or --[(R.sup.3).sub.r --COO]-- (V) wherein R 3 is CH 2 or CF 2 and r is an integer of 2 to 5.
Claim 3
Dependent Claim
22 words
A copolymer according to claim 1, wherein a molar ratio of the repeating units (a) and (b) is from 3:97 to 99:1.
Claim 4
Dependent Claim
31 words
A copolymer according to claim 1, wherein the repeating unit (b) is that represented by the formula: --(OCH.sub.2).sub.m (CH.sub.2).sub.n -- (II) wherein m and n are the same as defined above.
Claim 5
Dependent Claim
35 words
A copolymer according to claim 1, wherein the repeating unit (b) is that represented by the formula: --OCH.sub.2 CR.sup.1 R.sup.2 CH.sub.2 -- (III) wherein R 1 and R 2 are the same as defined above.
Claim 6
Dependent Claim
30 words
A copolymer according to claim 1, wherein the repeating unit (b) is that represented by the formula: --OCH.sub.2 (OCH.sub.2 CH.sub.2).sub.q -- (IV) wherein q is the same as defined above.
Claim 7
Dependent Claim
31 words
A copolymer according to claim 1, wherein the repeating unit (b) is that represented by the formula: --[(R.sup.3).sub.r --COO]-- (V) wherein R 3 and r are the same as defined above.
Claim 8
Dependent Claim
11 words
A water- and oil-repellent comprising a copolymer according to claim 1.
Claim 9
Dependent Claim
43 words
A water- and oil-repellent according to claim 7, which is in the form of a solution in an organic solvent selected from the group consisting of acetone, methyl ethyl ketone, ethyl acetate, dimethylformamide, methylchloroform, trichloroethylene, trichlorotrifluoroethane, tetrachlorodifluoroethane, hexane, toluene and a mixture thereof.
Claim 10
Dependent Claim
9 words
A non-tackifier comprising a copolymer according to claim 1.
Claim 11
Dependent Claim
41 words
A non-tackifier according to claim 9, which is in the form of a solution in an organic solvent selected from the group consisting of acetone, methyl ethyl ketone, ethyl acetate, dimethylformamide, methylchloroform, trichloroethylene, trichlorotrifluoroethane, tetrachlorodifluoroethane, hexane, toluene and a mixture thereof.
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) | 1989-01-06 | 1989-07-08 | 1990-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-01-06 | 1993-07-08 | 1994-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-01-06 | 1997-07-08 | 1998-01-07 | $7700.00 | Window Closed / Lapsed |