Japan Polypropylene Corporation

Kazuo Asuka

Kuninori Takahashi

Takao Tayano

Shinichi Kitade

Iku Kouzai

Morikazu Niibe

Hayato Kitaura

Sachio Hotta

Hideshi Uchino

Yoshiyuki Ishihama

Masaru Aoki

Masato Nakano

Satoshi Katsuno

Masaaki Ito

Fusaaki Katou

This decorative film is to be bonded to a resin molded body by means of thermoforming, and comprises a sealing layer (I) that contains a polypropylene resin (A) and a layer (II) that contains a polypropylene resin (B). The polypropylene resin (A) satisfies the requirement (a1), while the polypropylene resin (B) satisfies the requirement (b1). (a1) The melt flow rate (MFR (A)) (at 230&#xb0; C. under a load of 2.16 kg) is more than 0.5 g/10 minutes. (b1) The melt flow rate (MFR (B)) (at 230&#xb0; C. under a load of 2.16 kg) and the MFR (A) satisfy relational expression (b-1). MFR (B)&#x3c;MFR (A) (b-1).

Decorative film and method for producing decorative molded body using same

The present invention provides a thermal molding sheet having a thickness of 1 mm or more and formed by a polypropylene resin composition comprising: 5 to 97 wt % of a polypropylene resin (A) whose MFR and melt tension satisfy specific conditions and which has a long-chain branch structure; 1 to 93 wt % of a polypropylene resin (B) whose MFR satisfies specific conditions; 1 to 40 wt % of a thermoplastic elastomer (C); and 1 to 40 wt % of a filler (D).

Thermal molding sheet and molded article

Provided is a polypropylene-based resin composition which gives uniform and fine cells and from which a foamed sheet and thermoform excellent in appearance, thermoformability, impact resistance, lightness, stiffness, heat resistance, heat insulating properties, oil resistance and the like can be produced and includes (X) 5 to 99% by weight of a polypropylene resin having a structure with long chain branches, and (Y) 1 to 95% by weight of a propylene-based block copolymer produced by sequential polymerization, which block copolymer comprises (Y-1) a propylene (co)polymer and (Y-2) a propylene-ethylene copolymer.

Polypropylene-based resin composition and foam sheet

Provided is a polypropylene-based resin composition which gives uniform and fine cells and from which a foamed sheet and thermoform excellent in appearance, thermoformability, impact resistance, lightness, stiffness, heat resistance, heat insulating properties, oil resistance and the like can be produced. A polypropylene-based resin composition comprising (X) 5 to 99% by weight of a polypropylene resin having a structure with long chain branches, and (Y) 1 to 95% by weight of a propylene-based block copolymer produced by sequential polymerization, which block copolymer comprises (Y-1) a propylene (co)polymer and (Y-2) a propylene-ethylene copolymer.

A propylene-based polymer which is suitably applicable to foam molding, sheet molding, blow molding or the like, because of having good flow characteristics, high melt tension, high swell ratio and thus good molding workability. It is attained by a propylene-based polymer or the like characterized by satisfying the following requirements (i) to (vi). Requirement (i): MFR is 0.1 g/10 minutes to 100 g/10 minutes. Requirement (ii): Q value by GPC is 3.5 to 10.5. Requirement (iii): ratio of components with a molecular weight of equal to or higher than 2,000,000, in a molecular weight distribution curve obtained by GPC, is equal to or larger than 0.4% by weight and less than 10% by weight. Requirement (iv): components, which elute at a temperature of equal to or lower than 40&#xb0; C., are equal to or less than 3.0% by weight, in temperature rising elution fractionation by ODCB. Requirement (v): isotactic triad fraction (mm) measured withC-NMR is equal to or higher than 95%. Requirement (vi): strain hardening degree (&#x3bb;max), in measurement of extensional viscosity, is equal to or higher than 6.0.

Propylene-based polymer, production method therefor, composition using the same, and application thereof

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Mie, Japan

Kazuo Asuka