US 12,378,345 B2
Polyfunctional vinyl resin and method for producing same, polyfunctional vinyl resin composition, cured article, prepreg, resin sheet, and laminated plate
Masahiro Soh, Tokyo (JP); Kazuo Ishihara, Tokyo (JP); Jaeman Han, Seoul (KR); and Haerry Youn, Seoul (KR)
Assigned to NIPPON STEEL Chemical & Material Co., Ltd., Tokyo (JP); and KUKDO CHEMICAL CO., LTD., Seoul (KR)
Appl. No. 17/926,131
Filed by NIPPON STEEL Chemical & Material Co., Ltd., Tokyo (JP); and KUKDO CHEMICAL CO., LTD., Seoul (KR)
PCT Filed May 13, 2021, PCT No. PCT/JP2021/018295
§ 371(c)(1), (2) Date Nov. 18, 2022,
PCT Pub. No. WO2021/241255, PCT Pub. Date Dec. 2, 2021.
Claims priority of application No. 2020-093240 (JP), filed on May 28, 2020.
Prior Publication US 2023/0183409 A1, Jun. 15, 2023
Int. Cl. C08F 283/00 (2006.01); B32B 27/12 (2006.01); B32B 27/18 (2006.01); B32B 27/30 (2006.01); C08G 61/02 (2006.01); C08J 5/24 (2006.01); B32B 5/02 (2006.01)
CPC C08F 283/00 (2013.01) [B32B 27/12 (2013.01); B32B 27/18 (2013.01); B32B 27/30 (2013.01); C08G 61/02 (2013.01); C08J 5/24 (2013.01); B32B 5/022 (2013.01); B32B 5/024 (2013.01); B32B 2260/021 (2013.01); B32B 2260/046 (2013.01); B32B 2262/0223 (2013.01); B32B 2262/0246 (2013.01); B32B 2262/0269 (2013.01); B32B 2262/0276 (2013.01); B32B 2262/062 (2013.01); B32B 2262/065 (2013.01); B32B 2262/101 (2013.01); B32B 2262/103 (2013.01); B32B 2262/106 (2013.01); B32B 2307/204 (2013.01); B32B 2307/302 (2013.01); C08J 2351/08 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A polyfunctional vinyl resin, which is represented by the following general formula (1):

OG Complex Work Unit Chemistry
where
R1s each independently represent a hydrocarbon group having 1 to 8 carbon atoms,
R2s each independently represent a hydrogen atom or a dicyclopentenyl group, and at least one thereof represents a dicyclopentenyl group,
Xs each independently represent a hydrogen atom or a vinyl group-containing aromatic group represented by formula (1a), and at least one thereof represents a vinyl group-containing aromatic group, and Ar represents an aromatic ring, and
“n” represents a number of repetitions, and an average thereof is a number of from 1 to 5.