Patent US4798468A successfully refreshed from Google Patents.
US5283310A
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Proton conducting polymer, and application thereof as electrolyte in electrochemical devices
Assignee: Saint Gobain Glass France SAS
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Filing: 1992-09-11
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Granted: 1994-02-01
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Expires: 2012-09-11
Abstract
Abstract This invention has as its subject a basic organo-mineral proton conducting polymer, produced by copolymerization of three precursors: a precursor based upon a trialkoxysilane, onto which a methane sulphonamide group is grafted by means of an alkyl or aryl link, a "deprotonizing" precursor based upon a trialkoxysilane, onto which is grafted a group derived from a nitrogenous base, preferably an imidazoline group, by means of an alkyl or aryl link, a "plasticizing" and solvating precursor, having at least one urea group which is the product of a reaction between a primary mono-, di- or triamine D and a trialkoxysilane E onto which an isocyanate group has been grafted by means of an alkyl link.
Inventors
- 👤 Michel Armand
- 👤 Christiane Poinsignon
- 👤 Jean-Yves Sanchez
- 👤 Veronica de Zea Bermudez
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:52
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/05; H01M10/052; C; C08; C08G; C08G77/00; C08G77/04; C08G77/22; C08G77/28; H01B; H01B1/00; H01B1/06; H01B1/12; H01B1/122; H01M10/056; H01M10/0564; H01M10/0565; G; G02; G02F; G02F1/00; G02F1/01; G02F1/15; G02F1/1514; G02F1/1523; G02F1/1525; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
113 words
A basic organo-mineral proton conducting polymer characterized in that it is the result of a copolymerization of at least three precursors: a precursor A comprising a trialkoxysilane onto which is grafted a methanesulphonamide group by means of an alkyl or aryl link, a deprotonizing precursor B comprising a trialkoxysilane onto which is grafted a basic nitrogenous group by means of a alkyl or aryl link, and a plasticizing and solvating precursor C, product of the reaction between a primary mono-, di- or triamine D and a trialkoxysilane E having an isocyanate group grafted thereon by means of a C 1 -C 4 -alkyl link, said precursor C having at least one urea group.
Claim 2
Dependent Claim
113 words
A basic organo-mineral proton conducting polymer characterized in that it is the result of a copolymerization of at least three precursors: a precursor A comprising a trialkoxysilane onto which is grafted a methanesulphonamide group by means of an alkyl or aryl link, a deprotonizing precursor B comprising a trialkoxysilane onto which is grafted a basic nitrogenous group by means of a alkyl or aryl link, and a plasticizing and solvating precursor C, product of the reaction between a primary mono-, di- or triamine D and a trialkoxysilane E having an isocyanate group grafted thereon by means of a C 1 -C 4 -alkyl link, said precursor C having at least one urea group.
Claim 3
Dependent Claim
29 words
A polymer according to claim 1, characterized in that at least one of the said alkyl links is a linear alkyl link comprising from 1 to 4 carbon atoms.
Claim 4
Dependent Claim
29 words
A polymer according to claim 2, characterized in that at least one of the trialkoxysilane of precursors A, B or of reagent E is a trimethoxysilane or a triethoxysilane.
Claim 5
Dependent Claim
32 words
A polymer according to claim 1, characterized in that the primary amine D is a diamine which complies with the general formula: ##STR5## where a+c≧2.5 a≧1, c≧1, and b=8.5; b=15.5 or b=40.5.
Claim 6
Dependent Claim
24 words
A polymer according to claim 1, characterized in that the molar percentage of precursor B relative to precursor A is from 5 to 40%.
Claim 7
Dependent Claim
24 words
A polymer according to claim 1, characterized in that the molar percentage of precursor C relative to precursor A is from 5 to 40%.
Claim 8
Dependent Claim
17 words
A polymer according to claim 1, characterized in that it is produced by a sol-gel polymerization technique.
Claim 9
Dependent Claim
15 words
A polymer according to claim 1 wherein the basic nitrogenous group is an imidazoline group.
Claim 10
Dependent Claim
21 words
A polymer according to claim 5, wherein the molar percentage of B relative to precursor A is from 10 to 20%.
Claim 11
Dependent Claim
21 words
A polymer according to claim 6, wherein the molar percentage of C relative to precursor A is from 5 to 30%.
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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) | 1997-01-31 | 1997-08-02 | 1998-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-01-31 | 2001-08-02 | 2002-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-01-31 | 2005-08-02 | 2006-02-01 | $7700.00 | Window Closed / Lapsed |