Toyo Kohan Co., Ltd.

Tadashi Fujii

Hiroshi Inazawa

Takuji Nakamura

Kenji Yasunaka

Yasuhiro Matsubara

Keisuke Takesue

Eiichiro Sugioka

A process by which many kinds of unstretched films comprising a thermoplastic resin are produced each in a small amount and high yield. A thermoplastic resin (A) to be formed into an unstretched film and another thermoplastic resin (B) are separately melted by heating. The thermoplastic resin (B) is introduced to each edge part of a T-die () for extrusion. The two resins are ejected and extruded on a casting roll so that the thermoplastic rosin (B) is disposed on the side of each edge of the thermally melted thermoplastic resin (A). Thus, an unstretched film () is formed which comprises the thermoplastic resin (A) and the thermoplastic resin (B) disposed on the side of each edge of the resin (A). Thereafter, the parts constituted of the thermoplastic resin (B) are removed y cutting to form a target unstretched film () consisting only of the thermoplastic resin (A).

Process for producing unstretched film, process for producing resin-coated metal sheet, and apparatus for producing unstretched film

Thermal transfer roll for manufacture of laminate plate, method of

Method and apparatus for production of laminated metal sheet

Apparatus for treating a strip

Growing community of inventors

Yamaguchi-ken, Japan

Tadashi Fujii