The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 21, 2000
Filed:
Jun. 10, 1998
Masayuki Makise, Tokyo, JP;
Michio Narita, Tokyo, JP;
Seiji Maeno, Tokyo, JP;
Hideo Komatsu, Tokyo, JP;
Lion Corporation, Tokyo, JP;
Abstract
A method for preparing a conductive thermoplastic resin composition or an electric conductor includes the step of kneading (a) conductive resin master batch pellets of conductive carbon black and a thermoplastic resin in which the conductive carbon black accounts for 5 to 50% by weight relative to the total amount 100 parts by weight of the conductive carbon black and the thermoplastic resin, (b) a thermoplastic resin in a weight ratio: (a+b)/(a) ranging from 1.01 to 1.5. This method permits the production of a conductive carbon black-containing conductive resin composition and an electric conductor which show stable conductivity even within a high resistance region (having a surface resistivity ranging from 10.sup.6 to 10.sup.16 .OMEGA.), wherein the control of the conductivity is difficult.