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:
Dec. 06, 1977
Filed:
Mar. 01, 1976
Applicant:
Inventor:
Jack Gould, Harrogate, EN;
Assignee:
Imperial Chemical Industries Limited, London, EN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; H05B / ; H05B / ;
U.S. Cl.
CPC ...
428368 ; 219553 ; 338-7 ; 338225 ; 428244 ; 428367 ; 428372 ; 428375 ; 428373 ; 427122 ; 427121 ; 427180 ; 252511 ; 29611 ;
Abstract
An electrically conductive fibre formed from a thermoplastic organic polymer and having a zero or positive temperature coefficient of resistance. It is produced by the sequential steps of embedding and/or dispersing electrically conductive carbon particles into an outer region of the fibre, removing at least some of any free, unadhered carbon particles, if any are present, from the surface of the fibre by washing, and heating the fibre to a temperature whereby its temperature coefficient of resistance becomes zero or is converted to a positive value.