US4859754A
Expired / Lapsed
US
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Water and oil repellant having desoiling properties
Assignee: AGC Inc
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Filing: 1988-10-20
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Granted: 1989-08-22
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Expires: 2008-10-20
Abstract
Abstract A water and oil repellant having desoiling properties composed of a polyfluorinated group-containing copolymer obtained by copolymerizing the following monomers a and b as essential constituting components: a: a polyfluorinated group-containing monomer b: an amphipathic monomer having a hydrophilic moiety and a lipophilic moiety.
Inventors
- 👤 Takashige Maekawa
- 👤 Kazuya Oharu
- 👤 Tomoko Sakaguchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:11
CPC Classifications
C; C08; C08F; C08F220/00; C08F220/02; C08F220/10; C08F220/22; C08F220/24; D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/263; D06M15/277
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
44 words
A water and oil repellant having desoiling properties composed of a polyfluorinated group-containing copolymer obtained by copolymerizing the following monomers a and b as essential constituting components: a: a polyfluorinated group-containing monomer b: an amphipathic monomer having a hydrophilic moiety and a lipophilic moiety.
Claim 2
Dependent Claim
44 words
A water and oil repellant having desoiling properties composed of a polyfluorinated group-containing copolymer obtained by copolymerizing the following monomers a and b as essential constituting components: a: a polyfluorinated group-containing monomer b: an amphipathic monomer having a hydrophilic moiety and a lipophilic moiety.
Claim 3
Dependent Claim
39 words
The water and oil repellant according to claim 1, wherein the weight ratio of a/b in the polyfluorinated group-containing copolymer. is 65-95/5-35, and the total content of a and b in the copolymer is at least 80% by weight.
Claim 4
Dependent Claim
28 words
The water and oil repellant according to claim 1, wherein the polyfluorinated group-containing monomer is a monomer containing a perfluoroalkyl group having from 3 to 20 carbon atoms.
Claim 5
Dependent Claim
30 words
The water and oil repellant according to claim 1, wherein the polyfluorinated group-containing monomer is an acrylate or methacrylate containing a perfluoroalkyl group having from 3 to 20 carbon atoms.
Claim 6
Dependent Claim
28 words
The water and oil repellant according to claim 1, wherein the amphipathic monomer is a monomer containing mixed polyoxyalkylene groups constituting the hydrophilic moiety and the lipophilic moiety.
Claim 7
Dependent Claim
59 words
The water and oil repellant according to claim 1, wherein the amphipathic monomer is an acrylate or methacrylate having the following formula: CH.sup.2 ═C(R.sup.1)CO.sub.2 [(C.sub.3 H.sub.6 O).sub.m (C.sub.2 H.sub.4 O).sub.n ]R.sup.2 wherein R 1 is H or CH 3 , R 2 is H or a C 1 -C 20 alkyl or aralkyl group, m≧1, n≧1, n≧1, and 60≧m+n≧2.
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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) | 1992-08-21 | 1993-02-20 | 1993-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-08-21 | 1997-02-20 | 1997-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-08-21 | 2001-02-20 | 2001-08-22 | $7700.00 | Window Closed / Lapsed |