US 12,215,196 B2
Polyimide resin composition
Atsushi Sakai, Kanagawa (JP); Yuuki Sato, Kanagawa (JP); and Fumihiro Fukuda, Kanagawa (JP)
Assigned to MITSUBISHI GAS CHEMICAL COMPANY, INC., Chiyoda-ku (JP)
Appl. No. 17/611,691
Filed by MITSUBISHI GAS CHEMICAL COMPANY, INC., Chiyoda-ku (JP)
PCT Filed May 7, 2020, PCT No. PCT/JP2020/018480
§ 371(c)(1), (2) Date Nov. 16, 2021,
PCT Pub. No. WO2020/241185, PCT Pub. Date Dec. 3, 2020.
Claims priority of application No. 2019-102464 (JP), filed on May 31, 2019.
Prior Publication US 2022/0213269 A1, Jul. 7, 2022
Int. Cl. C08G 73/10 (2006.01); C08J 5/04 (2006.01); C08K 13/02 (2006.01); C08K 3/34 (2006.01); C08K 3/40 (2006.01); C08K 5/098 (2006.01)
CPC C08G 73/1082 (2013.01) [C08G 73/1042 (2013.01); C08J 5/043 (2013.01); C08K 13/02 (2013.01); C08K 3/346 (2013.01); C08K 3/40 (2013.01); C08K 5/098 (2013.01)] 10 Claims
 
1. A polyimide resin composition, comprising:
a polyimide resin (A); and
a fatty acid metal salt (B),
wherein the polyimide resin (A) includes a repeating structural unit of formula (1) and a repeating structural unit of formula (2), where a content ratio of the repeating structural unit of the formula (1) with respect to the total of the repeating structural unit of the formula (1) and the repeating structural unit of the formula (2) is 20 to 35 mol %, and
the fatty acid metal salt (B) includes a fatty acid having 12 to 36 carbon atoms and optionally having a hydroxy group and at least one metal selected from the group consisting of an alkali metal, an alkaline earth metal, and a transition metal:

OG Complex Work Unit Chemistry
where R1 is a divalent group having 6 to 22 carbon atoms including at least one alicyclic hydrocarbon structure, R2 is a divalent chain aliphatic group having 5 to 16 carbon atoms, and X1 and X2 are each independently a tetravalent group having 6 to 22 carbon atoms including at least one aromatic ring.