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, 1997
Filed:
Nov. 20, 1995
Applicant:
Inventors:
Thomas Munzmay, Dormagen, DE;
Peter Fuhrmann, Koln, DE;
Franz Lamla, Dormagen, DE;
Walter Meckel, Neuss, DE;
Werner Rasshofer, Koln, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08J / ;
U.S. Cl.
CPC ...
521 495 ; 521 49 ;
Abstract
A process for the decomposition of polyurethane plastic waste materials in which a compound containing at least two isocyanate-reactive hydrogen atoms (e.g., glycol) and polyurethane plastic, together with 2 to 20 times the amount of previously regenerated material, are treated in a mixing and comminution device.