US 12,441,842 B2
Polyimide resin, photosensitive resin composition, resin film, and electronic device
Daichi Miyahara, Okayama (JP); and Yumi Sato, Okayama (JP)
Assigned to MITSUBISHI GAS CHEMICAL COMPANY, INC., Tokyo (JP)
Appl. No. 17/790,194
Filed by MITSUBISHI GAS CHEMICAL COMPANY, INC., Tokyo (JP)
PCT Filed Dec. 15, 2020, PCT No. PCT/JP2020/046718
§ 371(c)(1), (2) Date Jun. 30, 2022,
PCT Pub. No. WO2021/140845, PCT Pub. Date Jul. 15, 2021.
Claims priority of application No. 2020-001511 (JP), filed on Jan. 8, 2020.
Prior Publication US 2023/0094840 A1, Mar. 30, 2023
Int. Cl. G03F 7/037 (2006.01); C08G 73/10 (2006.01); C09D 179/08 (2006.01)
CPC C08G 73/105 (2013.01) [C09D 179/08 (2013.01); G03F 7/037 (2013.01)] 22 Claims
 
1. A modified polyimide resin comprising:
a structure represented by General Formula (I),

OG Complex Work Unit Chemistry
wherein, E comprises a group represented from a following formula (I-c); Q may comprise 60 mol % or greater of the structure represented by General Formula (II), and may comprise a tetravalent group having 4 or more and 10 or less carbon atoms with a cyclic structure, an acyclic structure, or a cyclic structure and a acyclic structure, in addition to the structure represented by General Formula (II); n represents the number of repeating units; a terminal end in the general formula (I) is either a group represented by Formula (III) or Formula (IV), or a hydrogen atom, and at least one of the terminal ends is a group represented by Formula (III) or Formula (IV); and

OG Complex Work Unit Chemistry
wherein * represents an atomic bond,

OG Complex Work Unit Chemistry
wherein, X is selected from the group consisting of a divalent aromatic hydrocarbon group having from 6 to 30 carbon atoms; the divalent aromatic hydrocarbon group represented by X may be substituted with a substituent, and the number of carbon atoms represents the number of carbon atoms forming an aromatic ring, a plurality of R1s each independently represent at least one type selected from the group consisting of a hydrogen atom and an alkyl group having from 1 to 10 carbon atoms; a plurality of R2s each independently represent a hydrogen atom or an alkyl group having from 1 to 10 carbon atoms; and m represents an integer from 0 to 4; and
* represents an atomic bond; and

OG Complex Work Unit Chemistry
wherein, X11 and X22 are each independently a group having from 2 to 15 carbon atoms and may have at least one group selected from the group consisting of an ester bond and a double bond; and Y1 and Y2 are each independently a hydrogen atom or a methyl group.