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1. (WO2018186030) RESIN COMPOSITION, PREPREG, METAL-CLAD LAMINATE, PRINTED WIRING BOARD, AND FLEX-RIGID PRINTED WIRING BOARD

Pub. No.:    WO/2018/186030    International Application No.:    PCT/JP2018/005422
Publication Date: Fri Oct 12 01:59:59 CEST 2018 International Filing Date: Sat Feb 17 00:59:59 CET 2018
IPC: C08L 63/00
B32B 15/08
B32B 15/092
C08G 59/30
C08J 5/24
C08K 3/013
C08L 51/04
C08L 71/10
H05K 1/03
H05K 3/46
Applicants: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
パナソニックIPマネジメント株式会社
Inventors: YAMAUCHI Akihiro
山内 章裕
NAKAMURA Yoshihiko
中村 善彦
FUJISAWA Hiroyuki
藤澤 洋之
SHINPO Takashi
新保 孝
Title: RESIN COMPOSITION, PREPREG, METAL-CLAD LAMINATE, PRINTED WIRING BOARD, AND FLEX-RIGID PRINTED WIRING BOARD
Abstract:
Provided is a resin composition capable of: giving a prepreg which has satisfactory formability and high adhesiveness to the base and is reduced in dusting; and forming a cured object having a low coefficient of thermal expansion. The resin composition comprises an epoxy resin, dicyandiamide, a phenoxy resin, a core-shell rubber, and an inorganic filler. The phenoxy resin has a weight-average molecular weight of 30,000 or higher. The phenoxy resin has a tensile elongation of 20% or higher. The content of the phenoxy resin is 5-30 parts by mass per 100 parts by mass of the epoxy resin. The content of the core-shell rubber is 3-20 parts by mass per 100 parts by mass of the epoxy resin.