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. 18, 2017
Filed:
Sep. 21, 2010
Kevin J. Edgar, Blacksburg, VA (US);
Nilanjana Kar, Dossenheim Heidelberg, DE;
Kevin J. Edgar, Blacksburg, VA (US);
Nilanjana Kar, Dossenheim Heidelberg, DE;
Virginia Tech Intellectual Properties, Inc., Blacksburg, VA (US);
Abstract
The present invention relates to esters of diacids and cellulosic materials and methods for making thereof. The ester has the chemical composition of Formula (I) Formula I where R1, R2, and R3 can be the same or different, and each of which is selected from —H, —COR', —R′″, or —COR″ COOH, with the proviso that at least one of the R1, R2, or R3 is —COR″ COOH; R′ is an alkyl, alkenyl, alkynyl, or aromatic group; R″ is an alkyl, alkenyl, or alkynyl group having 4 or more carbon atoms (≧C); and R′″ is an alkyl, alkenyl, alkynyl, polyol, or aromatic group.