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:
Jun. 07, 1983
Filed:
Jun. 15, 1981
Applicant:
Inventors:
Werner Kuhnel, Neunkirchen-Schoneshof, DE;
Paul Spielau, Troisdorf-Eschmar, DE;
Assignee:
Dynamit Nobel AG, Kroisdorf, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J / ;
U.S. Cl.
CPC ...
521 85 ; 264D / ; 521 88 ; 521 96 ; 521143 ; 521909 ; 521910 ;
Abstract
An improved process for the foaming of polyolefin materials is disclosed where the polyolefin is crosslinked by a peroxide and foamed by a chemical foaming agent combined with an auxiliary foaming agent is disclosed. According to the invention, the auxiliary foaming is a sterically hindered phenol and/or an organic phosphorus compound.