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. 23, 1993
Filed:
Jun. 01, 1989
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
The present invention provides a temperature self-controlling heating composition containing crystalline resins, elastomers and electrically conductive particles, and additional material for giving an affintiy to the resins and the elastomers if both are not compatible, in which the electrically conductive particles are stably dispersed in the medium of the resin and the elastomer, and the agglomeration of the dispersed particles can be prevented, even if the temperature exceeds the melting point of the crystalline resin because the apparent viscosity of the resin is not lowered so much by the network structure of the elastomers, so that the electrical resistance does not become lower even at such a high temperature.