US4721795A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluoropolyethers containing end groups endowed with anchoring capacity
Assignee: Montedison SpA
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Filing: 1984-12-31
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Granted: 1988-01-26
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Expires: 2004-12-31
Abstract
Abstract Compounds suitable for being used as lubricants, having general formula: (I) RO--(C 3 F 6 O) m --(CFXO) n --CFX--L, or (II) R"CFXO--(C 3 F 6 O) x (CFXO) y --(C 2 F 4 O) z --(CFX--L, where R=--CF 3 , --C 2 F 5 , --C 3 F 7 X=F, --CF 3 R"=F, --CF 3 , --C 2 F 5 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 ro 20 and R is preferably=CF 3 , if n=zero, R is preferably --C 2 F 5 or --C 3 F 7 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 preferably F, and R"=L L=group A--Y, where A=--CH 2 O--, --CH 2 --O--CH 2 , --CF 2 , CF 2 O--, Y=an organic radical covered by one of the following formulas: ##STR1## where R 1 , R 2 =alkyls C 1 -C 3 , E=CHR 3 or --CH 2 --CHR 3 B=H or a radical OR 3 -- R 3 =H or an alkyl C 1 -C 3 .
Inventors
- 👤 Gerardo Caporiccio
- 👤 Ezio Strepparola
- 👤 Mario A. Scarati
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:04
CPC Classifications
C; C10; C10M; C10M107/00; C10M107/38; C07; C07C; C07C43/00; C07C43/02; C07C43/20; C07C43/225; C07D; C07D317/00; C07D317/08; C07D317/44; C07D317/46; C07D317/48; C07D317/50; C07D317/54; C08; C08G; C08G65/00; C08G65/002; C08G65/005; C08G65/007; C08G65/02; C08G65/32; C08G65/329; C08G65/337; G; G11; G11B; G11B5/00; G11B5/62; G11B5/68; G11B5/70; G11B5/71; G11B5/72; G11B5/725; G11B5/7253; G11B5/7257; C10M2213/00; C10M2213/04; C10M2213/06; C10N; C10N2040/00; C10N2040/02; C10N2040/30; C10N2040/32; C10N2040/34; C10N2040/36; C10N2040/38; C10N2040/40; C10N2040/42; C10N2040/44; C10N2040/50; Y; Y10; Y10S; Y10S428/00; Y10S428/90; Y10T; Y10T428/00; Y10T428/31504; Y10T428/3154; Y10T428/31544
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
300 words
A compound having a formula selected from (I) RO(C 3 F 6 O) m --(CFXO) n --CFX--L, and (II) R"CFXO--(C 3 F 6 O) x --(CFXO) y --(C 2 F 4 O) z --CFX--L, in which R is selected from the group consisting of --CF 3 , --C 2 F 5 , and --C 3 F 7 ; X is selected from the group consisting of F and --CF 3 ; R' is selected from the group consisting of F, --CF 3 and --C 2 F 5 and, when x is zero; R" is L as defined hereinafter m is an integer from 3 to 100; n is zero or a finite integer wherein m+n ranges from 3 to 100, provided that, when n is finite, m/n ranges from 5 to 20 and R is --CF 3 , and when n is zero, R is selected from the group consisting of --C 2 F 5 and --C 3 F 7 ; x is zero or a finite integer; y,z are finite integers such that x+y+z ranges from 5 to 200, and x+z ranges from 5 to 0.5, provided that when x is zero, z/y ranges from 1 to 0.5, y+z ranges from 5 to 200, and X is F; L is an orgnic non-polymerizable group A-Y, in which A is selected from the group consisting of --CH 2 O--, --CH 2 O--CH 2 --, --CF 2 -- and --CF 2 O--; and Y is an organic radical having formula (b): ##STR7## where E is slected from the group consisting of --CHR 3 and --CH 2 --CHR 3 --; R 3 is selected from the group consisting of hydrogen and C 1 -C 3 alkyl; and B is selected from the group consisting of hydrogen and a radical --OR 3 .
Claim 2
Dependent Claim
300 words
A compound having a formula selected from (I) RO(C 3 F 6 O) m --(CFXO) n --CFX--L, and (II) R"CFXO--(C 3 F 6 O) x --(CFXO) y --(C 2 F 4 O) z --CFX--L, in which R is selected from the group consisting of --CF 3 , --C 2 F 5 , and --C 3 F 7 ; X is selected from the group consisting of F and --CF 3 ; R' is selected from the group consisting of F, --CF 3 and --C 2 F 5 and, when x is zero; R" is L as defined hereinafter m is an integer from 3 to 100; n is zero or a finite integer wherein m+n ranges from 3 to 100, provided that, when n is finite, m/n ranges from 5 to 20 and R is --CF 3 , and when n is zero, R is selected from the group consisting of --C 2 F 5 and --C 3 F 7 ; x is zero or a finite integer; y,z are finite integers such that x+y+z ranges from 5 to 200, and x+z ranges from 5 to 0.5, provided that when x is zero, z/y ranges from 1 to 0.5, y+z ranges from 5 to 200, and X is F; L is an orgnic non-polymerizable group A-Y, in which A is selected from the group consisting of --CH 2 O--, --CH 2 O--CH 2 --, --CF 2 -- and --CF 2 O--; and Y is an organic radical having formula (b): ##STR7## where E is slected from the group consisting of --CHR 3 and --CH 2 --CHR 3 --; R 3 is selected from the group consisting of hydrogen and C 1 -C 3 alkyl; and B is selected from the group consisting of hydrogen and a radical --OR 3 .
Claim 3
Dependent Claim
14 words
The compound according to claim 1, in which radical Y has the formula ##STR8##
Claim 4
Dependent Claim
21 words
A compound according to claim 1, in which B is hydrogen and E is --CHR 3 where R 3 is hydrogen.
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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) | 1991-01-25 | 1991-07-27 | 1992-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-01-25 | 1995-07-27 | 1996-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-01-25 | 1999-07-27 | 2000-01-26 | $7700.00 | Window Closed / Lapsed |