US4675452A
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Perfluorinated polyether fluids
Assignee: Individual
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Filing: 1985-07-18
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Granted: 1987-06-23
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Expires: 2005-07-18
Abstract
Abstract Perfluorinated polyethers comprising copolymers of hexafluoroacetone and epoxide and/or oxetanes are described. The perfluorinated polyethers are useful as lubricants.
Inventors
- 👤 Richard J. Lagow
- 👤 Daniel F. Persico
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:40
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/02; C08G65/32; C08G65/321; C08G65/323; C08G65/3233; C08G65/3236; C08G2/00; C08G2/30; C10; C10M; C10M107/00; C10M107/38; C10M2213/00; C10M2213/04; C10M2213/06; C10N; C10N2040/00; C10N2040/08
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
145 words
Perfluorinated hexafluoroacetone copolymers of the formula: ##STR34## wherein R f 1 and R f1 , are F, CF 3 , C 2 F 5 , C 3 F 7 , C-C 6 F 5 or c-C 6 F 11 ; R f2 , R f2 ', R f3 and R f4 are F, CF 3 or C 2 F 5 ; R f3 '-R f6 ' if F or CF 3 ; R fA is CFR f1 R f2 R f3 R f4 , CFR f3 R f4 , CFR 1 'R f2 'CR f3 'R f4 'CR f5 'R f6 ', CFR f3 'R f4 'CR f5 'R f6 ' or CFR f5 'R f6 '; R fB is CF 3 , C 2 F 5 and C 3 F 7 ; and x and y are integers greater than 1 such that x+y=8-50.
Claim 2
Dependent Claim
145 words
Perfluorinated hexafluoroacetone copolymers of the formula: ##STR34## wherein R f 1 and R f1 , are F, CF 3 , C 2 F 5 , C 3 F 7 , C-C 6 F 5 or c-C 6 F 11 ; R f2 , R f2 ', R f3 and R f4 are F, CF 3 or C 2 F 5 ; R f3 '-R f6 ' if F or CF 3 ; R fA is CFR f1 R f2 R f3 R f4 , CFR f3 R f4 , CFR 1 'R f2 'CR f3 'R f4 'CR f5 'R f6 ', CFR f3 'R f4 'CR f5 'R f6 ' or CFR f5 'R f6 '; R fB is CF 3 , C 2 F 5 and C 3 F 7 ; and x and y are integers greater than 1 such that x+y=8-50.
Claim 3
Dependent Claim
88 words
Perfluorinated hexafluoroacetone/epoxide copolymers of the formula: ##STR35## wherein R f1 is F, CF 3 , C 2 F 5 , C 3 F 7 , c-C 6 F 5 or c-C 6 F 11 ; R f2 , R f3 and R f4 are F, CF 3 or C 2 F 5 ; R fA is CFR f1 R f2 CR f3 R f4 or CFR f3 R f4 ; R fB is CF 3 , C 2 F 5 or C 3 F 7 ; and n=8-50.
Claim 4
Dependent Claim
88 words
Perfluorinated hexafluoroacetone/epoxide copolymers of the formula: ##STR35## wherein R f1 is F, CF 3 , C 2 F 5 , C 3 F 7 , c-C 6 F 5 or c-C 6 F 11 ; R f2 , R f3 and R f4 are F, CF 3 or C 2 F 5 ; R fA is CFR f1 R f2 CR f3 R f4 or CFR f3 R f4 ; R fB is CF 3 , C 2 F 5 or C 3 F 7 ; and n=8-50.
Claim 5
Dependent Claim
10 words
Perfluorinated hexafluoroacetone/ethylene oxide copolymer of the formula: ##STR36## wherein n=8-50.
Claim 6
Dependent Claim
10 words
Perfluorinated hexafluoroacetone/ethylene oxide copolymer of the formula: ##STR36## wherein n=8-50.
Claim 7
Dependent Claim
10 words
Perfluorinated hexafluoroacetone/propylene oxide copolymer of the formula: ##STR37## wherein n=8-50.
Claim 8
Dependent Claim
10 words
Perfluorinated hexafluoroacetone/propylene oxide copolymer of the formula: ##STR37## wherein n=8-50.
Claim 9
Dependent Claim
104 words
Perfluorinated hexafluoroacetone/oxetane copolymer of the formula: ##STR38## wherein R f1 is F, CF 3 , C 2 F 5 , C 3 F 7 , c-C 6 F 5 or c-C 6 F 11 ; R f2 is CF 3 or C 2 F 5 ; R f3 -R f6 is F or CF 3 ; R fA is CFR f1 R f2 CR f3 R f4 CR f5 R f6 , CFR f3 R f4 CR f5 R f6 or CFR f5 R f6 ; R fB is CR 3 , C 2 F 5 or C 3 F 7 : and n=8-50.
Claim 10
Dependent Claim
104 words
Perfluorinated hexafluoroacetone/oxetane copolymer of the formula: ##STR38## wherein R f1 is F, CF 3 , C 2 F 5 , C 3 F 7 , c-C 6 F 5 or c-C 6 F 11 ; R f2 is CF 3 or C 2 F 5 ; R f3 -R f6 is F or CF 3 ; R fA is CFR f1 R f2 CR f3 R f4 CR f5 R f6 , CFR f3 R f4 CR f5 R f6 or CFR f5 R f6 ; R fB is CR 3 , C 2 F 5 or C 3 F 7 : and n=8-50.
Claim 11
Dependent Claim
9 words
Perfluorinated hexafluoroacetone/oxetane copolymer of the formula: ##STR39## wherein n=8-50.
Claim 12
Dependent Claim
9 words
Perfluorinated hexafluoroacetone/oxetane copolymer of the formula: ##STR39## wherein n=8-50.
References Cited (Backward Citations)
GB1226566A
Cited
US4009128A
Cited
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