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:
Apr. 08, 1986
Filed:
Dec. 12, 1984
Applicant:
Inventors:
Hans-Joachim Henkel, Erlangen, DE;
Norbert Muller, Erlangen, DE;
Assignee:
Siemens Aktiengesellschaft, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K / ; C08K / ; H01B / ; C08L / ;
U.S. Cl.
CPC ...
428379 ; 1741 / ; 1741 / ; 428461 ; 428704 ; 524140 ; 524145 ; 524417 ; 524580 ;
Abstract
The invention relates to electrical insulation material of a polyolefin composition with a phosphate additive which prevents the formation of so-called water trees. The phosphate additive may be a water-soluble alkali or earth-alkali phosphate and/or a hydrolysable phosphoric acid ester (RO).sub.3 PO, wherein at least one of the substituents R is an aliphatic radical and the remaining substituents may be hydrogen or an aliphatic radical. The electrical insulation according to the invention is suited particularly for use in cables and wires.