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:
Feb. 28, 1995
Filed:
Mar. 29, 1993
Applicant:
Inventors:
Wolfgang Payer, Wesel, DE;
Maher Onallan, Oberhausen, DE;
Winfried Materne, Wetter, DE;
Andreas Sobbe, Dinslaken, DE;
Assignee:
Hoechst Aktiengesellschaft, , DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29B / ; B29C / ;
U.S. Cl.
CPC ...
264117 ; 264118 ; 264140 ; 264142 ; 425202 ; 425D / ;
Abstract
Pulverulent ultra-high molecular weight polyethylene, alone or as a mixture with other polyethylenes, is compacted into extrudates by extrusion agglomeration under pressure at temperatures of 100.degree. to 150.degree. C. over average residence times in the die of 2 to 40 seconds and at a compression ratio of 1:5 to 1:15, and the extrudates are divided into pellets.