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:
Oct. 26, 2004
Filed:
Apr. 11, 2002
Applicant:
Inventors:
Eduard Schmid, Bonaduz, CH;
Ivano Laudonia, Thusis, CH;
Hansjörg Ernst, Bonaduz, CH;
Werner Kägi, Domat/Ems, CH;
Assignee:
EMS-Chemie AG, , CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 6/920 ; C08G 6/908 ;
U.S. Cl.
CPC ...
C08G 6/920 ; C08G 6/908 ;
Abstract
The invention relates to a polyamide with low viscosity degradation after remelting which can be produced by anionic polymerization of lactam in the presence of alkaline catalysts and if necessary activators and the method for production of the polyamide. The invention relates furthermore to a method for reprocessing anionically produced polyamide.