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:
Jan. 27, 1987
Filed:
Apr. 09, 1985
Applicant:
Inventors:
Luigi Sacconi, Florence, IT;
Marco Foa, Novara, IT;
Elena Bencini, Novara, IT;
Giampiero Sabarino, Vercelli, IT;
Assignee:
Montedison S.p.A., Milan, IT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528212 ; 528215 ; 528216 ;
Abstract
Polyphenylenethers are prepared by oxidative polymerization of phenols in the presence of oxygen and of organic bases (amines), by using copper-based catalysts having general formula:
Quick Actions:
Sacconi, Luigi. (1987). Process for preparing polyphenylenethers (U.S. Patent No. 4639506). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4639506
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile