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. 03, 1994
Filed:
May. 27, 1992
Applicant:
Inventors:
Francesco Anfuso, Mantova, IT;
Roberto Lanfredi, Mantova, IT;
Gianfranco Veroli, Mantova, IT;
Italo Borghi, Ferrara, IT;
Assignee:
Enichem S.p.A., Milan, IT;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
521 56 ; 521 60 ;
Abstract
Process for producing foamable particles of styrenic polymers, which consists in submitting said particles to a partial loss of foaming agent, performed in an oven at a lower temperature than the glass transition temperature (Tg) of said particles.