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:
Jun. 10, 2014
Filed:
Oct. 21, 2013
Ut-battelle, Llc, Oak Ridge, TN (US);
Amit K. Naskar, Knoxville, TN (US);
Tomonori Saito, Knoxville, TN (US);
Joseph M. Pickel, Knoxville, TN (US);
Frederick S. Baker, Oak Ridge, TN (US);
Claude Clifford Eberle, Knoxville, TN (US);
Robert E. Norris, Knoxville, TN (US);
Jonathan Richard Mielenz, Rockwood, TN (US);
UT-Battelle, LLC, Oak Ridge, TN (US);
Abstract
The present invention relates to a crosslinked lignin comprising a lignin structure having methylene or ethylene linking groups therein crosslinking between phenyl ring carbon atoms, wherein said crosslinked lignin is crosslinked to an extent that it has a number-average molecular weight of at least 10,000 g/mol, is melt-processible, and has either a glass transition temperature of at least 100° C., or is substantially soluble in a polar organic solvent or aqueous alkaline solution. Thermoplastic copolymers containing the crosslinked lignin are also described. Methods for producing the crosslinked lignin and thermoplastic copolymers are also described.