US 7,550,553 B2
Fluorinated diamine and polymer made from the same
Kazuhiro Yamanaka, Tokyo (Japan); and Kazuhiko Maeda, Tokyo (Japan)
Assigned to Central Glass Company, Limited, Ube-Shi (Japan)
Appl. No. 11/667,823
PCT Filed Dec. 26, 2005, PCT No. PCT/JP2005/023757
§ 371(c)(1), (2), (4) Date May 16, 2007,
PCT Pub. No. WO2006/070728, PCT Pub. Date Jul. 06, 2006.
Claims priority of application No. 2004-381143 (JP), filed on Dec. 28, 2004.
Prior Publication US 2008/0221298 A1, Sep. 11, 2008
Int. Cl. C08G 69/26 (2006.01)
U.S. Cl. 528—347  [528/335; 528/350; 528/353; 528/289; 528/291; 528/342; 528/348; 560/19] 6 Claims
OG exemplary drawing
 
5. A fluorine-containing polyamide resin that is a polymer obtained by reacting a diamine represented by the formula (1),

OG Complex Work Unit Drawing
with one selected from a dicarboxylic acid, a dicarboxylic dihalide and a dicarboxylic diester, which are represented by the formula (6),

OG Complex Work Unit Drawing
wherein R1 is a bivalent organic group containing an aromatic ring, X is —OH group, halogen (fluorine, chlorine, bromine or iodine) atom or —OR′ group, and R′ represents an alkyl group or phenyl group, and that contains a constituent unit represented by the formula (7),

OG Complex Work Unit Drawing
wherein R1 is the same as in formula (6).