Riken Technos Corporation

Hidemasa Sugimoto

Tomohiro Takahashi

Kazutaka Yamada

Kohei Nakashima

Yoshihiro Zennyoji

Motoi Hiugano

Embodiments provide a method for producing a film including a thermoplastic resin composition, the method including: (1) a step of subjecting a thermoplastic resin composition to preliminary heating at 100-250&#xb0; C.; (2) a step of subjecting a first roller and second roller of a calender roll film-forming apparatus to pre-heating; and (3) a step of introducing the thermoplastic resin composition, which has been subjected to preliminary heating in step (1), into the clearance between the first roller and second roller, which have been pre-heated in step (2), and continuously winding a molten film of the thermoplastic resin composition on the first roller. According to at least one embodiment, the rotational speed of the first roller is higher than the rotational speed of the second roller. According to at least one embodiment, the thermoplastic resin composition contains (A) 100 parts by mass of a thermoplastic resin, (B) 1-60 parts by mass of carbon nanotubes and (C) 1-100 parts by mass of at least one type of material selected from the group consisting of acetylene black and graphite.

Method for producing thermoplastic resin composition film

Embodiments of the invention relate to a poly(meth)acrylimide film and a method for manufacturing such a film. At least one embodiment provides a poly(meth)acrylimide film that has (i) a total light transmittance of over 90% and (ii) haze of 2.0% or less. This film preferably has retardation of less than 50 nm. The method for manufacturing this film includes the following steps: (A) using a device provided with an extruder and a T die, a poly(meth)acrylimide molten film is continuously extruded from the T die; and (B) the poly(meth)acrylimide molten film is loaded by being fed between a rotating or circulating first mirrored-surface body and a rotating or circulating second mirrored-surface body, and then the film is pressed. During these steps, (C) the surface temperature of the first mirrored-surface body is in the range 100-200&#xb0; C., and (D) the surface temperature of the second mirrored-surface body is in the range 20-200&#xb0; C.

Poly(meth)acrylimide film, easy-adhesion film using same, and method for manufacturing such films

Embodiments of the invention provide an electrically conductive resin composition which enables the formation of a film that has high electrical conductivity and excellent tensile elongation, bending resistance and flexibility, and is suitable for an electrode member for a storage battery. At least one embodiment provides a resin composition including (A) 100 parts by mass of a thermoplastic resin, (B) 1 to 60 parts by mass of carbon nanotubes, and (C) 1 to 60 parts by mass of acethylene black, wherein the thermoplastic resin (A) includes (A1) 30 to 80% by mass of a chlorinated polyethylene having a chlorine content of 20 to 45% by mass and (A2) 70 to 20% by mass of a polyethylene that is different from the component (A1). According to another embodiment, the thermoplastic resin (A) is (A3) a polyethylene that satisfies the following properties (p) and (q): (p) the peak top melting point on the highest temperature side in a DSC melting curve is 120&#xb0; C. or higher; and (q) the ratio of melting enthalpy in a temperature range of 110&#xb0; C. or lower relative to the total melting enthalpy in the DSC melting curve is 50 to 80%.

Electrically conductive resin composition, and film produced from same

Embodiments relate to a method for manufacturing a heat-shielding film in which a heat-shielding material has been well dispersed in a polyvinyl chloride resin. According to one embodiment, the method for manufacturing the heat-shielding film includes (1) mixing a polyvinyl chloride resin composition (P) containing the polyvinyl chloride resin (A) using a blender, and (2) adding and further mixing the heat-shielding material with the mixture obtained in step (1 The heat-shielding material contains at least antimony-doped tin oxide micro-particles (B) in an amount in which the mass ratio of the polyvinyl chloride resin (A) to antimony-doped oxidized tin micro-particles (B) is 100 parts by mass to 1.5 to 15 parts by mass. The heat-shielding material is composed of antimony-doped oxidized tin micro-particles (B) alone.

Method for manufacturing heat-shielding film, heat-shielding film, and heatshielding curtain

The present invention provides a resin composition for an electrically conductive resin film which is excellent in electric conductivity, tensile elongation, durability to bending and flexibility and is suitable as electrodes or protective coatings on the electrodes in redox flow batteries. A resin composition includes (A) 100 parts by mass of a thermoplastic resin, (B) 1 to 60 parts by mass of carbon nanotubes and (C) 1 to 100 parts by mass of at least one selected from the group consisting of acetylene black and graphite.

Growing community of inventors

Tokyo, Japan

Hidemasa Sugimoto