US 11,859,035 B2
Method for producing polymer used as base film for cell culture, and cell culture container
Kohei Suzuki, Funabashi (JP); Yoshiomi Hiroi, Funabashi (JP); and Natsuki Abe, Shiraoka (JP)
Assigned to NISSAN CHEMICAL CORPORATION, Tokyo (JP)
Appl. No. 17/271,154
Filed by NISSAN CHEMICAL CORPORATION, Tokyo (JP)
PCT Filed Aug. 22, 2019, PCT No. PCT/JP2019/032785
§ 371(c)(1), (2) Date Feb. 24, 2021,
PCT Pub. No. WO2020/040247, PCT Pub. Date Feb. 27, 2020.
Claims priority of application No. 2018-157444 (JP), filed on Aug. 24, 2018.
Prior Publication US 2021/0238329 A1, Aug. 5, 2021
Int. Cl. C08F 220/34 (2006.01); C08F 220/06 (2006.01); C08F 2/06 (2006.01); C08F 2/44 (2006.01); C08J 5/18 (2006.01); C12M 1/12 (2006.01); C12N 1/00 (2006.01)
CPC C08F 220/34 (2013.01) [C08F 2/06 (2013.01); C08F 2/44 (2013.01); C08F 220/06 (2013.01); C08J 5/18 (2013.01); C12M 25/02 (2013.01); C12N 1/00 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A method for producing a base film-forming agent for cell culture, which comprises a step of mixing a polymer and a water-containing solution, wherein the polymer is obtained by polymerizing a mixture containing a monomer represented by formula (I):

OG Complex Work Unit Chemistry
wherein Ua1 and Ua2 each independently represent a hydrogen atom or a linear or branched alkyl group having 1 to 5 carbon atoms, Ra1 represents a hydrogen atom or a linear or branched alkyl group having 1 to 5 carbon atoms, and Ra2 represents a linear or branched alkylene group having 1 to 5 carbon atoms, and a monomer represented by formula (II):

OG Complex Work Unit Chemistry
wherein Rb represents a hydrogen atom or a linear or branched alkyl group having 1 to 5 carbon atoms.