EP0302392A2
Expired / Lapsed
EP
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Polyfluoroethers
Assignee: Daikin Industries Ltd
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Filing: 1988-07-28
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Granted: —
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Expires: 2008-07-28
Abstract
Abstract A polyether of the formula: wherein m is a number of 2 to 5, n is a number of 1 to 5, R f ¹ is a perfluoroalkyl group having 7 to 11 carbon atoms, and R f ² is a perfluoroalkyl group having 3 to 11 carbon atoms, which has a high boiling point and is chemically and thermally stable.
Inventors
- 👤 Yasuhisa Furutaka
- 👤 Tsunetoshi Honda
- 👤 Nobuyoshi Iwashita
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 20:52
CPC Classifications
C; C07; C07C; C07C43/00; C07C43/02; C07C43/03; C07C43/04; C07C43/12; C07C43/123; C07C43/14; C07C43/17
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
49 words
A polyether of the formula: wherein m is a number of 2 to 5, n is a number of 1 to 5, R f ¹ is a perfluoroalkyl group having 7 to 11 carbon atoms, and R f ² is a perfluoroalkyl group having 3 to 11 carbon atoms.
Claim 2
Dependent Claim
49 words
A polyether of the formula: wherein m is a number of 2 to 5, n is a number of 1 to 5, R f ¹ is a perfluoroalkyl group having 7 to 11 carbon atoms, and R f ² is a perfluoroalkyl group having 3 to 11 carbon atoms.
Claim 3
Dependent Claim
11 words
A polyether of the formula: wherein m is as defined above.
Claim 4
Dependent Claim
11 words
A polyether of the formula: wherein m is as defined above.
Claim 5
Dependent Claim
13 words
A polyether of the formula: wherein R f ¹ is as defined above.
Claim 6
Dependent Claim
13 words
A polyether of the formula: wherein R f ¹ is as defined above.
Claim 7
Dependent Claim
11 words
A polyether of the formula: wherein n is as defined above.
Claim 8
Dependent Claim
11 words
A polyether of the formula: wherein n is as defined above.
Claim 9
Dependent Claim
11 words
A polyether of the formula: wherein n is as defined above.
Claim 10
Dependent Claim
11 words
A polyether of the formula: wherein n is as defined above.
Claim 11
Dependent Claim
13 words
A polyether of the formula: wherein R f ² is as defined above.
Claim 12
Dependent Claim
13 words
A polyether of the formula: wherein R f ² is as defined above.
References Cited (Backward Citations)
No citation records indexed.
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