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. 18, 2017
Filed:
Jun. 11, 2014
Applicant:
Basf SE, Ludwigshafen, DE;
Inventors:
Gad Kory, Gaiberg, DE;
Joachim Clauss, Darmstadt, DE;
Axel Wilms, Frankenthal, DE;
Stefan Schwiegk, Neustadt, DE;
Christian Schmidt, Ludwigshafen, DE;
Silke Biedasek, Ludwigshafen, DE;
Heinrich Sack, Hassloch, DE;
Florian Richter, Mannheim, DE;
Ning Zhu, Mannhiem, DE;
Assignee:
BASF SE, Ludwigshafen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 2/00 (2006.01); C08G 69/26 (2006.01); C08G 69/28 (2006.01);
U.S. Cl.
CPC ...
C08G 69/28 (2013.01); C08G 69/265 (2013.01);
Abstract
The present invention relates to a process for preparing an aliphatic or semiaromatic polyamide oligomer, in which an aqueous composition of the monomers is subjected to an oligomerization at elevated temperature and elevated pressure and the oligomerization output is preferably subjected to an expansion.