公开(公告)号：US20210108042A1

公开(公告)日：2021-04-15

申请号：US17131967

申请日：2020-12-23

Applicant: Mitsubishi Chemical Corporation

Inventor： Takahiro HAYASHI ,  Naoki SUGIURA ,  Masayasu HASUIKE

IPC: C08J5/24 ,  B29B15/12

Abstract: A fiber-reinforced resin prepreg and a molded article obtained by molding a molding material including the fiber-reinforced resin prepreg are described. The fiber-reinforced resin prepreg contains a carbon fiber bundle and a matrix resin composition. The ipa value of the carbon fiber bundle measured by an electrochemical measurement method is 0.14 μA/cm2 or more. The impact strength of a film obtained by solidifying the matrix resin composition under particular molding conditions is 12.0 kJ/m or more.

公开(公告)号：US20200377681A1

公开(公告)日：2020-12-03

申请号：US16994984

申请日：2020-08-17

Applicant: Mitsubishi Chemical Corporation

Inventor： Takahiro HAYASHI ,  Takeshi ISHIKAWA ,  Kouichiro TANIGUCHI ,  Kazuya TANAKA ,  Masayasu HASUIKE

IPC: C08J5/24 ,  C08J5/04 ,  C08G73/10 ,  C08L71/00

Abstract: Provided is a fiber-reinforced thermoplastic resin prepreg which exhibits high interfacial adhesion between reinforcement fibers and a matrix resin, while having excellent interlaminar fracture resistance. The fiber-reinforced thermoplastic resin prepreg of the present invention comprises: a matrix resin comprising a polyarylketone resin and a polyetherimide resin; and a carbon fiber, wherein the polyetherimide resin in the matrix resin comprises a polyetherimide resin having a structural unit represented by Formula (1), an amount of the polyetherimide resin in the matrix resin (100% by mass) is 3% by mass to 25% by mass, and an amount of the polyarylketone resin in the matrix resin (100% by mass) is 75% by mass or more.