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:
Jun. 03, 2003
Filed:
Aug. 22, 2001
Applicant:
Inventors:
Michel Florentine Jozef Berghmans, Breda, NL;
Karel Cornelis Bleijenberg, Breda, NL;
Alphonsus Catharina Gerardus Metsaars, Rijen, NL;
Assignee:
Nova Chemical (International) S.A., Fribourg, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J 9/22 ;
U.S. Cl.
CPC ...
C08J 9/22 ;
Abstract
Process for the preparation of expandable polyvinylarene particles in which compact polyvinylarene particles are impregnated by an inorganic N - and/or O -containing gas at a temperature below 95° C. and at a pressure of 100 to 2,000 kPa gauge.