US 12,325,770 B2
Resin composition, cured product, prepreg, metal foil-clad laminate, resin sheet, and printed wiring board
Yuji Nakashima, Tokyo (JP); Takashi Kobayashi, Tokyo (JP); Shunsuke Hirano, Tokyo (JP); and Keiichi Hasebe, Tokyo (JP)
Assigned to Mitsubishi Gas Chemical Company, Inc., Tokyo (JP)
Appl. No. 18/685,865
Filed by Mitsubishi Gas Chemical Company, Inc, Tokyo (JP)
PCT Filed Aug. 5, 2022, PCT No. PCT/JP2022/030138
§ 371(c)(1), (2) Date Feb. 22, 2024,
PCT Pub. No. WO2023/026829, PCT Pub. Date Mar. 2, 2023.
Claims priority of application No. 2021-136790 (JP), filed on Aug. 25, 2021.
Prior Publication US 2024/0376243 A1, Nov. 14, 2024
Int. Cl. C08F 257/02 (2006.01); C08J 5/24 (2006.01); C08K 5/315 (2006.01); C08L 51/00 (2006.01); H05K 1/03 (2006.01)
CPC C08F 257/02 (2013.01) [C08J 5/249 (2021.05); C08K 5/315 (2013.01); C08L 51/003 (2013.01); H05K 1/0366 (2013.01); C08J 2351/06 (2013.01); C08J 2451/08 (2013.01); C08J 2453/02 (2013.01)] 19 Claims
 
1. A resin composition comprising a compound (A) represented by Formula (M1), a polymer (B) having a structural unit represented by Formula (V), and a cyanate ester compound;

OG Complex Work Unit Chemistry
where in Formula (M1), RM1, RM2, RM3, and RM4 each independently represent a hydrogen atom or an organic group; RM5 and RM6 each independently represent a hydrogen atom or an alkyl group; ArM represents a divalent aromatic group; A is a four-to six-membered alicyclic group; RM7 and RM8 are each independently an alkyl group; mx is 1 or 2; 1x is 0 or 1; RM9 and RM10 each independently represent a hydrogen atom or an alkyl group; RM11, RM12, RM13, and RM14 each independently represent a hydrogen atom or an organic group;
RM15 each independently represents an alkyl group having from 1 to 10 carbon atom(s), an alkyloxy group having from 1 to 10 carbon atom(s), an alkylthio group having from 1 to 10 carbon atom(s), an aryl group having from 6 to 10 carbon atoms, an aryloxy group having from 1 to 10 carbon atom(s), an arylthiol group having from 1 to 10 carbon atom(s), a halogen atom, a hydroxyl group, or a mercapto group; px represents an integer of from 0 to 3; and nx represents an integer of from 1 to 20,

OG Complex Work Unit Chemistry
wherein Formula (V), Ar represents an aromatic hydrocarbon linking group; and * represents a bond position, where a vinyl group equivalent of the unit represented by the Formula (V) is 200 g/eq or more and 1200 g/eq or less.