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. 13, 2003
Filed:
Aug. 14, 2001
Applicant:
Inventor:
Zhongxin Ma, Ridgeland, MS (US);
Assignee:
Mississippi Chemical Corporation, Yazoo City, MS (US);
Primary Examiner:
Int. Cl.
CPC ...
C08G 6/344 ; C05C 1/00 ;
U.S. Cl.
CPC ...
C08G 6/344 ; C05C 1/00 ;
Abstract
A method for the production of polyasparagine is provided wherein the polyasparagine is prepared by ammonolysis of polysuccinimide in liquid ammonia, acting both as a solvent and as a reactant, wherein the polysuccinimide can be any polysuccinimide, such as linear, branched or cross-linked, wherein the polyasparagine produced has high % N content and is neutral as opposed to anionic or cationic.