US 12,391,797 B2
Fluoropolyether group containing compound and method for producing the same
Kentarou Hiraga, Osaka (JP); Akinari Sugiyama, Osaka (JP); Fumihiko Yamaguchi, Osaka (JP); Takashi Nomura, Osaka (JP); Shouta Shibutani, Osaka (JP); and Shingo Okuno, Osaka (JP)
Assigned to DAIKIN INDUSTRIES, LTD., Osaka (JP)
Filed by DAIKIN INDUSTRIES, LTD., Osaka (JP)
Filed on Mar. 11, 2022, as Appl. No. 17/692,474.
Application 17/692,474 is a continuation of application No. PCT/JP2020/032914, filed on Aug. 31, 2020.
Claims priority of application No. 2019-167534 (JP), filed on Sep. 13, 2019; and application No. 2020-008580 (JP), filed on Jan. 22, 2020.
Prior Publication US 2022/0235177 A1, Jul. 28, 2022
Int. Cl. C08G 65/02 (2006.01); C08G 65/00 (2006.01); C08G 65/18 (2006.01); C08G 65/26 (2006.01); C07C 69/34 (2006.01)
CPC C08G 65/007 (2013.01) [C08G 65/18 (2013.01); C08G 65/26 (2013.01); C07C 69/34 (2013.01); C08G 65/02 (2013.01)] 10 Claims
 
1. A fluoropolyether-containing compound of the following formula (1a):

OG Complex Work Unit Chemistry
wherein
Ra is COF, COOR11, CH2OH, or CHO;
Rb is COF, COOR11, CH2OH, or CHO;
wherein Ra and Rb are groups different from each other;
R11 is each independently a hydrogen atom or an alkyl group having 1 to 6 carbon atoms optionally substituted with fluorine;
R1 is a perfluoroalkylene group having 2 to 10 carbon atoms;

OG Complex Work Unit Chemistry
R5a is CF2CF2CH2;
R6a is a linear alkylene group having 1 to 9 carbon atoms substituted with fluorine; and
n is an integer of 2 to 200.