US4284747A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cis-trans fluoropolyol polyacrylate
Assignee: United States Department of the Navy
•
Filing: 1980-02-25
•
Granted: 1981-08-18
•
Expires: 2000-02-25
Abstract
Abstract A cis-trans fluoropolyol acrylate prepared by reacting acrylic acid anhyde with a fluoropolyol having the structural formula: ##STR1## where R is selected from the group consisting of --C(CF 3 ) 2 C 6 H 4 C(CF 3 ) 2 -- and --C(CF 3 ) 2 CH 2 CH═CH(CF 3 ) 2 C--, R' is selected from the group consisting of --H and --CF 2 ) x F, x is 1 to 8 and n is any integer from 1 to 15, and the crosslinked thermosetting polymer prepared therefrom. The fluoropolyacrylate is useful in fabricating castings, coatings or adhesives.
Inventors
- 👤 James R. Griffith
- 👤 Jacques G. O'Rear
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:45
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/20; C08G59/22; C08G59/30; C08F; C08F299/00; C08F299/02; C08G59/14; C08G59/1433; C08G59/1438; C08G59/1455; C08G59/1461; C08G59/1466; C08G59/40; C08G59/42; C08G59/4207; C08L; C08L63/00; C08L63/10; C09; C09D; C09D4/00; C09J; C09J4/00; Y; Y10; Y10S; Y10S525/00; Y10S525/922
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
98 words
A cis-trans fluoropolyol acrylate prepared from a fluoropolyol having the structural formula: ##STR6## wherein R is selected from the group consisting of --C(CF 3 ) 2 C 6 H 4 C(CF 3 ) 2 -- and --C(CF 3 ) 2 CH 2 CH═CH(CF 3 ) 2 C--, R' is selected from the group consisting of --H and --(CF 2 ) x F, n has an average value of 4 to 10, and x is from 0 to 8; said cis-trans fluoropolyol acrylate exhibiting at least 60 percent esterification based on the number of epoxy and secondary hydroxyl groups.
Claim 2
Dependent Claim
98 words
A cis-trans fluoropolyol acrylate prepared from a fluoropolyol having the structural formula: ##STR6## wherein R is selected from the group consisting of --C(CF 3 ) 2 C 6 H 4 C(CF 3 ) 2 -- and --C(CF 3 ) 2 CH 2 CH═CH(CF 3 ) 2 C--, R' is selected from the group consisting of --H and --(CF 2 ) x F, n has an average value of 4 to 10, and x is from 0 to 8; said cis-trans fluoropolyol acrylate exhibiting at least 60 percent esterification based on the number of epoxy and secondary hydroxyl groups.
Claim 3
Dependent Claim
21 words
The acrylate of claim 1 wherein R is --C(CF 3 ) 2 C 6 C 4 C(CF 3 ) 2 --.
Claim 4
Dependent Claim
17 words
The acrylate of claim 1 wherein R is --C(CF 3 )CH 2 CH═CH(CF 3 ) 2 C--.
Claim 5
Dependent Claim
9 words
The acrylate of claim 2 wherein R' is --H.
Claim 6
Dependent Claim
9 words
The acrylate of claim 3 wherein R' is --H.
Claim 7
Dependent Claim
10 words
A polyacrylate formed by polymerizing the acrylate of claim 1.
Claim 8
Dependent Claim
21 words
The polyacrylate of claim 6 wherein R is --C(CF 3 ) 2 C 6 H 4 C(CF 3 ) 2 --.
Claim 9
Dependent Claim
17 words
The polyacrylate of claim 6 wherein R is --C(CF 3 CH 2 CH═CH(CF 3 ) 2 C--.
Claim 10
Dependent Claim
9 words
The polyacrylate of claim 7 wherein R' is --H.
Claim 11
Dependent Claim
9 words
The polyacrylate of claim 8 wherein R' is --H.
Claim 12
Dependent Claim
26 words
The acrylate of claim 1 wherein said acrylate is prepared by reacting said fluoropolyol in a solution of acrylic acid anhydride and a quaternary ammonium salt.
References Cited (Backward Citations)
US2824851A
Cited
US3373075A
Cited
US3256226A
Cited
US3432438A
Cited
US3586527A
Cited
US3586526A
Cited
US3872045A
Cited
US4132681A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-08-17 | 1985-02-16 | 1985-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-08-17 | 1989-02-16 | 1989-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-08-17 | 1993-02-16 | 1993-08-18 | $7700.00 | Window Closed / Lapsed |