Ube Industries, Inc.

Tatsushi Ako

Yasuo Kita

Tomohiko Akagawa

Kenji Nozaki

Yoshiki Suzuki

Saburou Hinenoya

Yukimasa Tanaka

Satoru Yasui

A pulverized thermoplastic resin product such as a pulverized thermoplastic product containing a black pigment, a mixture of a pulverized thermoplastic product containing a colored pigment and a pulverized thermoplastic product containing a colored pigment, or a pulverized thermoplastic product containing two or more different colored pigments can be converted into colored reclaimed resin particles by a method comprising the steps of mixing the pulverized resin product with a white pigment and a black pigment, melting the resulting mixture, and converting the molten mixture into solid particles. The colored reclaimed resin products can be utilized in various field.

Method for reclaiming pulverized synthetic resin product

A particulate chromatic resin composition comprises an unused thermoplastic resin component, a chromatic pigment and a white pigment, or a particulate white resin composition comprises an unused thermoplastic resin component, a white pigment and a black pigment, in which a sheet made from resin composition shows a relationship between a lightness and a light transmittance satisfying the following condition:1300&#x2266;()&#x2266;4000wherein L* means a lightness of a sheet of 3 mm thick having been made of the resin composition, and B means a total light transmittance in terms of % of a sheet of 50 &#x3bc;m thick having been made of the resin composition.

Particulate chromatic resin composition

[Problems] To produce a resin composition from a waste plastic material composed of a major portion of a thermoplastic resin and a small amount of incompatible solid foreign material. [Means for solving problems] A reclaimed resin composition which is produced by mixing a pulverized waste plastic material containing a major portion of a thermoplastic resin and a small amount of a non-thermoplastic solid foreign material with a light-shielding component and a light-shielding filler to give a mixture and melting the mixture under heating, and a sheet made from which shows a relationship between a lightness and a light transmittance satisfying the following condition:()&#x2266;4000wherein A means a lightness of a sheet of 3 mm thick having been made of the reclaimed resin composition, and B means a total light transmittance (%) of a sheet of 50 &#x3bc;m thick having been made of the resin composition.

Reclaimed resin composition produced from pulverized waste plastic material containing solid foreign materials

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Osaka, Japan

Tatsushi Ako