Asahi Kasei Kabushiki Kaisha

Hiroyuki Ichino

Yasuhiro Kusanose

Masashi Yamamoto

Masahiro Fujiwara

Toshikazu Hoshina

Noriko Yagi

Takahiro Tsuji

Takahiro Hisasue

Hydrogenated copolymer, adhesive film, resin composition, and molded article

The disclosure provides a film wherein an outer layer includes a polypropylene resin, an intermediate layer includes a polypropylene resin and a hydrogenated block copolymer (a), and an inner layer includes a polypropylene resin.

Film

The hydrogenated block copolymer according to the present invention is a hydrogenated block copolymer containing, in the molecule, a polymer block (C) having a conjugated diene compound as a main component, a polymer block (B) having a conjugated diene compound as a main component, and a polymer block (S) having a vinyl aromatic compound as a main component.

Hydrogenated block copolymer, polypropylene resin composition, and molded body

The present invention provides a hydrogenated block copolymer containing, in the molecule thereof, a polymer block (C) having a conjugated diene compound as a main component, a polymer block (B) having a conjugated diene compound as a main component, and a polymer block (S) having a vinyl aromatic compound as a main component.

Hydrogenated block copolymer, polypropylene resin composition, and molding

The resin composition according to the present invention contains a polypropylene resin (a), a hydrogenated block copolymer (b), and a hydrogenated block copolymer (c), wherein: a mass ratio of a content of the hydrogenated block copolymer (b) to a content of the hydrogenated block copolymer (c), (b)/(c), is 90/10 to 10/90; a mass ratio of a content of the polypropylene resin (a) to a total content of the hydrogenated block copolymer (b) and the hydrogenated block copolymer (c), (a)/((b)+(c)), is 10/90 to 90/10; and specific polymer blocks (C), (B1), and (B2) differing in amount of vinyl bond before hydrogenation are contained at a specific ratio.

Resin composition and molded body

The present invention provides a hydrogenated block copolymer: having a polymer block (S) containing an aromatic vinyl compound unit as a main constituent; and a polymer block (B) containing a conjugated diene compound unit as a main constituent, in a molecule.

Hydrogenated block copolymer and polypropylene-based resin composition using the same and molded article thereof

A tube including a hydrogenated block copolymer (a), wherein the hydrogenated block copolymer (a) includes, in a molecule, a polymer block mainly including a conjugated diene compound (C), a polymer block mainly including a conjugated diene compound (B), and a polymer block mainly including a vinyl aromatic compound (S).

Tube using hydrogenated block copolymer

A resin composition according to the present invention contains a polypropylene-based resin (a), a hydrogenated block copolymer (b), and a hydrogenated block copolymer (c) in a particular mass ratio, and the hydrogenated block copolymer (b) and the hydrogenated block copolymer (c) have particular constitution. Moreover, a sheet-shaped molded body according to the present invention contains the resin composition according to the present invention. Furthermore, a packaging material for medical use, foodstuffs or clothes according to the present invention contains the sheet-shaped molded body according to the present invention.

Growing community of inventors

Tokyo, Japan

Hiroyuki Ichino