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:
Feb. 04, 1992
Filed:
Jun. 13, 1990
Applicant:
Inventors:
Francesco Anfuso, Mantova, IT;
Andrea Mattiussi, Milan, IT;
Savino Matarrese, Verona, IT;
Italo Borghi, Ferrara, IT;
Assignee:
Montedipe S.r.l., Milan, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J / ;
U.S. Cl.
CPC ...
521 59 ; 521 56 ; 521 60 ; 521139 ;
Abstract
Exapandable beads of blends of poly (phenylene-ether) and a vinyl aromatic polymer are prepared by carrying out the polymerization of the vinyl aromatic monomer in presence of the poly(phenylene-ether) and of an expanding agent.