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:
Jul. 19, 2022
Filed:
Mar. 07, 2018
Applicant:
Basell Poliolefine Italia S.r.l., Milan, IT;
Inventors:
Gabriele Mei, Channelview, TX (US);
Antonio Mazzucco, Ferrara, IT;
Tiziana Caputo, Ferrara, IT;
Enrico Balestra, Ferrara, IT;
Davide Tartari, Ferrara, IT;
Paola Massari, Ferrara, IT;
Assignee:
Basell Poliolefine Italia S.r.l., Milan, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 2/34 (2006.01); C08F 2/00 (2006.01); C08F 4/02 (2006.01); C08F 4/622 (2006.01); C08F 10/06 (2006.01); C08L 23/14 (2006.01);
U.S. Cl.
CPC ...
C08F 2/34 (2013.01); C08F 2/001 (2013.01); C08F 4/022 (2013.01); C08F 4/6228 (2013.01); C08F 10/06 (2013.01); C08L 23/142 (2013.01);
Abstract
Process for the preparation of heterophasic propylene copolymer compositions (RAHECO) made from or containing a random propylene copolymer (RACO) and an elastomeric propylene copolymer (BIPO), the process being carried out in a reactor having two interconnected polymerization zones, a riser and a downcomer, wherein growing polymer particles: