ADDITIVE FOR PLASTIC, PLASTIC COMPOSITION CONTAINING THE SAME, MOLDED ARTICLE OF PLASTIC CONTAINING THE SAME COMPOSITION

Title:

ADDITIVE FOR PLASTIC, PLASTIC COMPOSITION CONTAINING THE SAME, MOLDED ARTICLE OF PLASTIC CONTAINING THE SAME COMPOSITION

Document Type and Number:

Japanese Patent JPH06240152

Kind Code:

A

Abstract:

PURPOSE: To obtain a plastic additive capable of improving physical strength, having a blackish color not changing with time without causing uneven concentration in a molded article and difference in concentration between molded articles and to produce a composition containing the plastic additive and a molded article of plastic comprising this composition.

CONSTITUTION: This plastic additive comprises a colored material which is composed of at least a magnetic material and a thermoplastic resin and is obtained by dispersing the magnetic material into the thermoplastic resin. The plastic composition contains the plastic additive and the molded article of plastic comprises this composition. Physical strength of plastic can be improved without causing uneven concentration and difference in concentration during plastic molding and the molded article is imparted with a blackish color having durability free from change with time.

Inventors:

MATSUMOTO TORU
UCHIDA MITSURU

Application Number:

JP32694293A

Publication Date:

August 30, 1994

Filing Date:

December 24, 1993

Export Citation:

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Assignee:

CANON KK

International Classes:

C08J3/12; C08J3/20; C08K3/00; C08K3/04; C08L23/02; C08L25/00; C08L25/04; C08L27/06; C08L33/00; C08L33/04; C08L67/00; C08L67/02; C08L101/00; C09C1/56; C09C3/06; C09C3/10; G03G9/083; (IPC1-7): C08L101/00; C08J3/12; C08J3/20; C08K3/00; C08L23/02; C08L25/00; C08L27/06; C08L33/00; C08L67/02; C09C1/56; C09C3/06; C09C3/10; G03G9/083

Attorney, Agent or Firm:

Wakabayashi Tadashi

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