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:
Mar. 04, 2008
Filed:
Oct. 12, 2004
Hideyasu Torii, Kawagoe, JP;
Hideyasu Torii, Kawagoe, JP;
Regulus Co., Ltd., Kawagoe-shi, JP;
Abstract
An electrically-conductive resin composition comprises (A) a thermoplastic resin and (B) an electrically-conductive polymer blended together. The electrically-conductive polymer is an electrically-conductive polyester doped with a dissociable inorganic salt. The doped polyester is at least one polyester selected from the group consisting of (a) polyesters each of which has a weight average molecular weight of from 50,000 to 500,000 and has been obtained by subjecting at least caprolactone as a monomer to ring-opening polymerization and (b) comb polyesters each of which has one or more polyester chains each having a weight average molecular weight of from 50,000 to 200,000 and has been obtained by subjecting a lactone to ring-opening polymerization in the presence of a trifunctional or higher functional, polyhydric alcohol as a polymerization initiator. Electrically-conductive resin moldings made of such electrically-conductive resin compositions are also disclosed.