Bis(perfluoroether carboxylic acid alkyl)amino ester and method for producing the same
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 12, 2017
Issued Date -
N/A
app pub date -
Jul 16, 2014
filing date -
Aug 9, 2013
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A bis(perfluoroether carboxylic acid alkyl)amino ester represented by the general formula: {CnF2n+1O[CF(CF3)CF2O]aCF(CF3)COO(CH2)b}2NR, wherein R is a hydrogen atom, an alkyl group having 1 to 12 carbon atoms, an aryl group, or an aralkyl group; preferably an alkyl group having 1 to 6 carbon atoms or an aryl group; n is an integer of 1 to 3; a is an integer of 0 to 20, preferably an integer of 1 to 6; and b is an integer of 1 to 12, preferably an integer of 1 to 4. The bis(perfluoroether carboxylic acid alkyl)amino ester having an amino group at the end of the ester group is produced by reacting a perfluoroether carboxylic acid fluoride compound of the formula: CnF2n+1O[CF(CF3)CF2O]aCF(CF3)COF and a bis(hydroxyalkyl)amine compound of the formula: HO(CH2)bNR(CH2)bOH at a molar ratio of 2:1 in the presence of an alkali metal fluoride.
First Claim
Other Claims data not available
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
- 1 Citation Count
- C07C Class
- 43.66 % this patent is cited more than
- 8 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Mar 12, 2025 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Mar 12, 2029 |
