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. 29, 2008
Filed:
Oct. 02, 2002
Applicants:
Kauno Alastalo, Porvoo, FI;
Päivi Pitkänen, Halkia, FI;
Marita Sutela, Porvoo, FI;
Lucas Pelckmans, Meerhout, BE;
Harri Hokkanen, Häsalmi, FI;
Inventors:
Kauno Alastalo, Porvoo, FI;
Päivi Pitkänen, Halkia, FI;
Marita Sutela, Porvoo, FI;
Lucas Pelckmans, Meerhout, BE;
Harri Hokkanen, Häsalmi, FI;
Assignee:
Siemens Aktiengesellschaft, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 4/02 (2006.01); C08F 4/642 (2006.01);
U.S. Cl.
CPC ...
Abstract
Polymers of propylene with one or two olefin comonomers are produced through the use of a polymerization catalyst supported on a carrier produced by spray crystallization and having a maximum dimension of 55 μm. Copolymers of superior properties are obtained, and the production process is de-snagged.