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:
Feb. 03, 2004
Filed:
May. 06, 2002
Applicant:
Inventors:
Philippe Desbois, Maikammer, DE;
Volker Warzelhan, Singapore, SG;
Christian Schade, Ludwigshafen, DE;
Michel Fontanille, Talence, FR;
Alain Deffieux, Bordeaux-Cauderan, FR;
Stephane Menoret, Bordeaux, FR;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 4/48 ; C08F / ;
U.S. Cl.
CPC ...
C08F 4/48 ; C08F / ;
Abstract
In a process for the anionic polymerization of vinylaromatic monomers or dienes in the presence of a lithium organyl or lithium alcoholate and a magnesium and/or an aluminum compound, a sterically hindered phenol or amine is added.