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:
May. 30, 2000
Filed:
Feb. 28, 1996
Applicant:
Inventors:
Bernhard Naber, Schwarzheide, DE;
Vera Neiss, Schwarzheide, DE;
Michael Gassan, Senftenberg, DE;
Werner Deutsch, Tuerkenfeld, DE;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08J / ;
U.S. Cl.
CPC ...
521 47 ; 521 49 ; 521 495 ; 528 76 ; 528 85 ; 528494 ; 528495 ;
Abstract
A process for recycling plastic waste containing a mixture of polyurethanes and other plastics, comprises reacting the plastic waste with an alcohol mixture comprising at least one low-molecular-weight, at least difunctional alcohol and at least one polyether-polyol, and then separating the resultant glycolysis polyol mechanically from the other plastic waste.