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. 12, 1994
Filed:
Oct. 05, 1993
Dennis J Kalota, Fenton, MO (US);
David A Martin, Ballwin, MO (US);
Monsanto Company, St. Louis, MO (US);
Abstract
The present invention relates to a process for the production of polysuccinimide by the thermal condensation of aspartic acid wherein the rate of reaction is increased by contacting the aspartic acid with a gas containing a catalytic amount of carbon dioxide. When the atmosphere in contact with the aspartic acid during the condensation reaction contains about 10 percent, by volume, carbon dioxide, substantially complete conversion to the polymer occurs within about one hour when the reaction is performed in a tray dryer.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile