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:
May. 18, 2004
Filed:
Jan. 03, 2003
Applicant:
Inventors:
Thomas Dietz, Essen, DE;
Erika Messinger, Arolsen/Schmillinghausen, DE;
Peter Muss, Essen, DE;
Ute Schick, Essen, DE;
Christian Weitemeyer, Essen, DE;
Astrid Zündorff, Essen, DE;
Assignee:
Goldschmidt AG, Essen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 7/310 ; C08G 6/348 ; C08G 6/391 ; C08F / ; C08H 1/00 ;
U.S. Cl.
CPC ...
C08G 7/310 ; C08G 6/348 ; C08G 6/391 ; C08F / ; C08H 1/00 ;
Abstract
Process for the preparation of copolymeric polypeptides, which comprises, in a first stage, reacting glutamic acid and/or derivatives thereof with amines in the absence of solvents and catalysts, under condensation conditions and, in a second stage, adding one or more further amino acids and/or derivatives thereof and/or one or more identical and/or further amines simultaneously or in any desired order, and reacting them with the reaction product of the first stage in the absence of solvents and catalysts.