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:
Nov. 25, 1997
Filed:
Nov. 27, 1996
Applicant:
Inventors:
Giovanni Parrinello, Fort Collins, CO (US);
David Thorpe, Herent, BE;
Gabriel Verhelst, Herent, BE;
Julian Francis Hopper, Maassluis, NL;
Mireille Berthine De Witte, Merelbeke, BE;
Assignee:
Imperial Chemical Industries PLC, London, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08J / ;
U.S. Cl.
CPC ...
521 495 ; 521 49 ; 521155 ; 521159 ; 521170 ; 521174 ; 521912 ; 528 59 ; 528 85 ;
Abstract
Process for recycling flexible foams by glycolysis and extraction. The glycolysis is conducted by allowing the foam to react with low molecular weight polyols, then allowing the mixture to separate in two phases.