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:
Mar. 16, 1993
Filed:
Oct. 08, 1991
Applicant:
Inventors:
Andrea Casarini, Paullo, IT;
Giorgio D Fortuna, Milan, IT;
Giovanni Zannotti, San Giuliano Milanese, IT;
Assignee:
ECP Enichem Polimeri S.r.l., Milan, IT;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08L / ;
U.S. Cl.
CPC ...
525 68 ; 525 92 ; 525397 ; 525905 ;
Abstract
Polymeric compositions based on at least one polyphenylene ether, obtained from the (co)polymerization by oxidative coupling of one or more substituted phenols, either alone and/or together with at least one (co)polymer of styrene, are thermically stabilized by adding at least one compound having the structural formula