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US4757145A
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Fluoropolyethers containing end groups endowed with anchoring capacity
Assignee: Montedison SpA
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Filing: 1987-03-26
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Granted: 1988-07-12
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Expires: 2007-03-26
Abstract
Abstract Compounds suitable for being used as lubricants, having general formula: (I) RO-(C3F6O)m-(CFXO)n-CFX-L, or (II) R''CFXO-(C3F6O)x(CFXO)y-(C2F4O)z-CFX-L, where R=-CF3, -C2F5, -C3F7 X=F, -CF3 R''=F, -CF3, -C2F5 m=an integer from 3 to 100 n=a finite integer, or=zero, wherefore m+n ranges from 3 to 100, provided that, if n is finite, m/n ranges from 5 to 20 and R is preferably=CF3, if n=zero, R is preferably -C2F5 or -C3F7 x=a finite integer, or=zero y, z=finite integers, such that x+y+z ranges from 5 to 200, while (x+z)/y ranges from 5 to 0.5, provided that when x=zero, z/y ranges from 1 to 0.5 and y+z ranges from 5 to 200 n while X is is preferably F, and R''=L L=group Y-Z, where: Y=-CH2O-, -CH2-OCH2, -CF2, -CF2O-, Z=a non-aromatic, non-fluorinated organic radical free from activated hydrogen atoms, containing two or more heteroatoms, which are electron doublet donors, or an aromatic radical, either or not containing heteroatoms, capable of giving rise to coordinative bonds or to charge-transfer bonds, thus causing various kinds of adsorption phenomena on metallic, polymeric or ceramic surfaces.
Inventors
- 👤 Gerardo Caporiccio
- 👤 Ezio Strepparola
- 👤 Mario A. Scarati
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:18
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/002; C08G65/005; C08G65/007; C08G65/02; C08G65/32; C08G65/329; C08G65/334; C08G65/3348; C08G65/337; G; G11; G11B; G11B5/00; G11B5/62; G11B5/68; G11B5/70; G11B5/71; G11B5/72; G11B5/725; G11B5/7253; G11B5/7257
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
295 words
Compounds having the formula: (I) --RO--(C.sub.3 F.sub.6 O).sub.m --(CFXO).sub.n --CFX--L, or (II) R"CFXO--(C.sub.3 F.sub.6 O).sub.x (CFXO).sub.y --(C.sub.2 F.sub.4 O).sub.z --CFX--L, wherein the oxyalkylene groups are randomly distributed in the chain and where: R is --CF 3 , --C 2 F 5 , --C 3 F 7 ; X is --F, --CF 3 ; R", when x is different from zero, is --F, --CF 3 , --C 2 F 5 provided that the group R" CFX contains not more than 3 carbon atoms, and when x is zero is L; m is an integer from 3 to 100; n is a finite integer, or is 0, wherein m+n is between 3 and 100, provided that, if n is finite, m/n ranges from 5 to 20 and R is --CF 3 , and if n is zero R is --C 2 F 5 or C 3 F 7 ; x is a finite integer, or is zero; y, z are finite integers, such that x+y+z ranges from 5 to 200, while x+z/y ranges from 5 to 0.5, provided that when x is zero, z/y ranges from 1 to 0.5 and y+z ranges from 5 to 200, while X is --F; L is an organic, non-polymerizable group Y--Z where Y is --CH 2 O--, --CH 2 OCH 2 --, --CF 2 --, CF 2 O--; and Z is an aromatic radical comprising at least one aromatic ring either containing or not containing heteroatoms, having 5 or 6 atoms, or at least one ring condensed with said aromatic ring, the group Z being further characterized in that, with metallic, polymeric and ceramic materials, it gives coordination bonds or charge transfer bonds, thus causing adsorption phenomena due to π bond onto the surface of the metallic, polymeric or ceramic material.
Claim 2
Dependent Claim
295 words
Compounds having the formula: (I) --RO--(C.sub.3 F.sub.6 O).sub.m --(CFXO).sub.n --CFX--L, or (II) R"CFXO--(C.sub.3 F.sub.6 O).sub.x (CFXO).sub.y --(C.sub.2 F.sub.4 O).sub.z --CFX--L, wherein the oxyalkylene groups are randomly distributed in the chain and where: R is --CF 3 , --C 2 F 5 , --C 3 F 7 ; X is --F, --CF 3 ; R", when x is different from zero, is --F, --CF 3 , --C 2 F 5 provided that the group R" CFX contains not more than 3 carbon atoms, and when x is zero is L; m is an integer from 3 to 100; n is a finite integer, or is 0, wherein m+n is between 3 and 100, provided that, if n is finite, m/n ranges from 5 to 20 and R is --CF 3 , and if n is zero R is --C 2 F 5 or C 3 F 7 ; x is a finite integer, or is zero; y, z are finite integers, such that x+y+z ranges from 5 to 200, while x+z/y ranges from 5 to 0.5, provided that when x is zero, z/y ranges from 1 to 0.5 and y+z ranges from 5 to 200, while X is --F; L is an organic, non-polymerizable group Y--Z where Y is --CH 2 O--, --CH 2 OCH 2 --, --CF 2 --, CF 2 O--; and Z is an aromatic radical comprising at least one aromatic ring either containing or not containing heteroatoms, having 5 or 6 atoms, or at least one ring condensed with said aromatic ring, the group Z being further characterized in that, with metallic, polymeric and ceramic materials, it gives coordination bonds or charge transfer bonds, thus causing adsorption phenomena due to π bond onto the surface of the metallic, polymeric or ceramic material.
Claim 3
Dependent Claim
36 words
The compound according to claim 1, in which Z is ##STR7## wherein B is oxygen or sulfur, R 1 is H or C 1-3 alkyl, and R 2 is H, Cl, Br or C 1-3 alkoxy.
Claim 4
Dependent Claim
53 words
The perfluoroether of the formula: ##STR8## wherein the oxyalkylene groups are randomly distributed in the chain and wherein: m is an integer from 3 to 100; n is a finite integer or is 0, wherein m+n is between 3 and 100, provided that if n is finite m/n ranges from 5 to 20.
Claim 5
Dependent Claim
53 words
The perfluoroether of the formula: ##STR8## wherein the oxyalkylene groups are randomly distributed in the chain and wherein: m is an integer from 3 to 100; n is a finite integer or is 0, wherein m+n is between 3 and 100, provided that if n is finite m/n ranges from 5 to 20.
Claim 6
Dependent Claim
53 words
The perfluoroether of the formula ##STR9## wherein the oxyalkylene groups are randomly distributed in the chain and wherein: m is an integer from 3 to 100, n is a finite integer or is 0, wherein m+n is between 3 and 100, provided that if n is finite m/n ranges from 5 to 20.
Claim 7
Dependent Claim
53 words
The perfluoroether of the formula ##STR9## wherein the oxyalkylene groups are randomly distributed in the chain and wherein: m is an integer from 3 to 100, n is a finite integer or is 0, wherein m+n is between 3 and 100, provided that if n is finite m/n ranges from 5 to 20.
Claim 8
Dependent Claim
20 words
Compounds according to claim 1, wherein at least one ring condensed with the aromatic ring of radical Z is cycloaliphatic.
Claim 9
Dependent Claim
30 words
Compounds according to claim 1 or 5, wherein said Z group contains substituents selected from the group consisting of C 1 -C 3 alkyl and C 1 -C 3 alkoxy.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1991-07-12 | 1992-01-11 | 1992-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-07-12 | 1996-01-11 | 1996-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-07-12 | 2000-01-11 | 2000-07-12 | $7700.00 | Window Closed / Lapsed |