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:
May. 04, 1976
Filed:
Jul. 30, 1974
Applicant:
Inventors:
Stefan Verne, London, EN;
Thomas Geoffrey Heggs, Welwyn, EN;
Assignee:
Imperial Chemical Industries Limited, London, EN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K / ; C08F / ;
U.S. Cl.
CPC ...
260 4246 ; 2608 / ;
Abstract
A polymeric composition comprises a polymerised propylene sequence and a propylene/ethylene copolymer sequence, has a melt index (230.degree.C; 2.16 kgms) of 0.01 to 0.5, preferably 0.025 to 0.25 and an ethylene content in the range 10-30% by weight, preferably at least 15% by weight. The polymer can accept a high carbon loading, for example in excess of 25% by weight. The invention also includes an electric conductor insulated with the polymer and also the use of the carbon filled polymer as a dielectric screen material.