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. 01, 2003
Filed:
Nov. 29, 2000
Applicant:
Inventors:
Arild Follestad, Stathelle, NO;
Vidar Almquist, Porsgrunn, NO;
Espen Ommundsen, Langesund, NO;
Tore Dreng, Larvik, NO;
Assignee:
Borealis Technology Oy, , FI;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F 4/24 ; C08F 4/642 ; C08F / ; C08F / ;
U.S. Cl.
CPC ...
C08F 4/24 ; C08F 4/642 ; C08F / ; C08F / ;
Abstract
A polyethylene produced by the homopolymerisation of ethylene or copolymerisation of ethylene with &agr;-olefins in the presence of a catalyst, characterized in that the fraction of low molecular weight polymers having MW<5000 g/mole is lower than 12% by weight of the produced polymer, and that the produced polyethylene has a measured melt strength expressed by a haul-off (HO) value satisfying the expression: HO>K ·&eegr;0.05+K , wherein K is 9.10 and K is 0.4.