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. 21, 2012
Filed:
Sep. 07, 2007
Applicants:
Karthikeyan Sharavanan, Mannheim, DE;
Kathrin Wissel, Ludwigshafen, DE;
Inventors:
Karthikeyan Sharavanan, Mannheim, DE;
Kathrin Wissel, Ludwigshafen, DE;
Assignee:
BASF SE, Ludwigshafen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G 2/18 (2006.01); C08L 59/04 (2006.01); C08K 3/26 (2006.01);
U.S. Cl.
CPC ...
Abstract
Process for preparing polyoxymethylenes by polymerization of the monomers a) in the presence of cationically active initiators b) and, if appropriate in the presence of regulators c) and subsequent deactivation d) and discharge from the reactor, wherein at least one ionic liquid is used as initiator b).