Patent ID: 7858006

Claim:
An apparatus for producing a laminated sheet, in which plural kinds of molten materials are laminated in plural layers as many as more than the number of said kinds of molten materials, comprising plural manifolds respectively used for supplying said respective molten materials, a slit plate placed between said manifolds, plural slits each formed in said slit plate and provided in correspondence to said respective manifolds and disposed with predetermined intervals kept between them so that said molten materials supplied into said respective manifolds can pass through the slits corresponding to said respective layers, and a laminating portion for laminating said molten materials having passed through said respective slits in order to form said layers, wherein each of said slits formed in said slit plate is closed to an outlet of one of said manifolds and has an inlet formed to be directly open to an outlet of another one of said manifolds, and wherein each of said slits has a top side inclined section that is inclined downwardly in the downstream direction of the molten materials as they leave from the manifolds, and further comprising two lateral plates between which the slit plate is placed, each of said lateral plates defining one of said manifolds, wherein each of said slits formed in said slit plate is closed to an outlet of one of said manifolds by a wall surface of said lateral plate defining said one of said manifolds.