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:
Sep. 05, 2006
Filed:
Jan. 28, 2004
Applicants:
Philippe Desbois, Maikammer, DE;
Michael Ishaque, Mannheim, DE;
Christian Schade, Ludwigshafen, DE;
Alain Deffieux, Bordeaux, FR;
Stéphane Carlotti, Talence, FR;
Inventors:
Philippe Desbois, Maikammer, DE;
Michael Ishaque, Mannheim, DE;
Christian Schade, Ludwigshafen, DE;
Alain Deffieux, Bordeaux, FR;
Stéphane Carlotti, Talence, FR;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DE;
Primary Examiner:
Int. Cl.
CPC ...
C08F 4/46 (2006.01); C08F 12/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
Process for preparing homopolymers of α-methylstyrene, or copolymers of α-methylstyrene and comonomers, by anionic polymerization in the presence of an initiator composition, which comprises using an initiator composition in which potassium hydride and at least one organylaluminum compound are present.