| 摘要 |
PROBLEM TO BE SOLVED: To display a superior bending resistance while keeping the transmission characteristics of electric signals good in a high frequency band. SOLUTION: The resin composition used for printed wiring boards contains a component (a) of 80-99.5 mass%, and a component (b) of 0.5-20 mass%. The component (a) is a graft copolymer of an aromatic vinyl monomer of 15-40 parts by weight graft-polymerized with a random or block copolymer of 60-85 parts by weight composed of monomer units of a nonpolarα-olefin monomer, etc., and the component (b) is a graft copolymer of an aromatic vinyl monomer of 5-30 parts by weight graft-copolymerized with a random or block copolymer of 70-95 parts by weight composed of monomer units of a nonpolarα-olefin monomer, etc. of 60-90 mass% and an aromatic vinyl monomer units of 10-40 mass%. COPYRIGHT: (C)2008,JPO&INPIT |
