US 12,351,676 B2
Non-mixed amphiphilic thermoplastic polyurethane, method for producing same, and implantable medical device including same
Hyunseo Shin, Seoul (KR); Bona Yang, Seoul (KR); Young Jea Kang, Seoul (KR); and Geunhee Kang, Seoul (KR)
Assigned to I-SENS, INC., Seoul (KR)
Appl. No. 17/780,604
Filed by I-sens, Inc., Seoul (KR)
PCT Filed Nov. 26, 2020, PCT No. PCT/KR2020/016996
§ 371(c)(1), (2) Date May 27, 2022,
PCT Pub. No. WO2021/118124, PCT Pub. Date Jun. 17, 2021.
Claims priority of application No. 10-2019-0167208 (KR), filed on Dec. 13, 2019.
Prior Publication US 2022/0298291 A1, Sep. 22, 2022
Int. Cl. C08G 18/42 (2006.01); C08G 18/10 (2006.01); C08G 18/32 (2006.01); C08G 18/40 (2006.01)
CPC C08G 18/4247 (2013.01) [C08G 18/10 (2013.01); C08G 18/3203 (2013.01); C08G 18/4009 (2013.01)] 9 Claims
OG exemplary drawing
 
1. An amphiphilic thermoplastic polyurethane,
wherein the amphiphilic thermoplastic polyurethane is represented by a structure selected from the group consisting of Chemical formulas 3, 5, 6, 7 and 9 below:

OG Complex Work Unit Chemistry

OG Complex Work Unit Chemistry

OG Complex Work Unit Chemistry

OG Complex Work Unit Chemistry
wherein, in the Chemical formulas 2 to 9,
x is an integer of 2 to 50,
y is an integer of 2 to 100, n is an integer of 10 to 250, and
a is an integer of 10 to 15.