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. 16, 1992
Filed:
Nov. 26, 1990
Applicant:
Inventors:
Erhard Seiler, Ludwigshafen, DE;
Klaus-Dieter Ruempler, Wachenheim, DE;
Norbert Jung, Lampertheim, DE;
Udo Haardt, Biblis, DE;
Rainer Henning, Muenster, DE;
Juergen Hamprecht, Muenster, DE;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ;
U.S. Cl.
CPC ...
428 31 ; 428 71 ; 428188 ; 4283197 ;
Abstract
A recyclable bumper system based on polypropylene comprises a bumper support A of glass fiber reinforced polypropylene, an energy-absorbing foam core B of foamed polypropylene and a tough shell C of EP-rubber modified polypropylene which may be coated, and can be recycled by mechanical comminution, extrusion and granulation, resulting in granules from which injection moldings having good mechanical properties can be produced.