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:
Sep. 20, 2016
Filed:
Mar. 17, 2011
Michael Jaffe, Maplewood, NJ (US);
Willis Hammond, Chatham, NJ (US);
Xianhong Feng, Kearny, NJ (US);
Anthony East, Madison, NJ (US);
Michael Jaffe, Maplewood, NJ (US);
Willis Hammond, Chatham, NJ (US);
Xianhong Feng, Kearny, NJ (US);
Anthony East, Madison, NJ (US);
New Jersey Institute of Technology, University Heights, NJ (US);
Abstract
A process for producing a copolyester through the production of an AB monomer of isoidide - Isodide 2-(4-carbomethoxyphenyl) ether. In certain aspects, the AB monomer is produced by performing the steps of: protecting the 2-position of isosorbide with a protecting group; functionalizing the 5-position of isosorbide with a suitable leaving group to form a reactive ester; nucleophilicly displacing the leaving group in a reaction with an alkali metal alkoxide or phenoxide to give an isoidide ether through a stereochemical inversion of the 5-position; and removing the protective moiety to create the AB monomer. In certain embodiments, the copolyester is produced by melting the AB monomer and a polyester, optionally with a catalyst.