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:
Sep. 05, 2000
Filed:
Aug. 11, 1998
Applicant:
Inventors:
Chia-Tin Chung, Miao-Li Hsien, TW;
Bin-Yuan Lin, Hsin-Chu Hsien, TW;
Hsin-Herng Wang, Hsin-Chu, TW;
Hsiao-Pin Huang, Hsin-Chu, TW;
Assignee:
Industrial Technology Research Institute, Hsin-Chu Hsien, TW;
Primary Examiner:
Int. Cl.
CPC ...
C08K / ; C08K / ; C08K / ; C08K / ; H01B / ;
U.S. Cl.
CPC ...
524495 ; 524424 ; 524428 ; 524492 ; 524496 ; 523215 ; 252502 ; 252504 ;
Abstract
A novel PTC conductive polymer composition is disclosed, which comprises (a) 35 to 60%, by weight of the composition, of a branched polyolefin with a polydispersity index of less than 2.5; and (b) 20 to 45%, by weight of the composition, of conductive particles which have been dispersed in the polyolefin. The PTC composition of the invention has intense, reproducible PTC behavior and is particularly suitable for use in PTC thermistors.