Lignin-derived thermoplastic co-polymers and methods of preparation

Naskar, Amit K.; Saito, Tomonori; Pickel, Joseph M.; Baker, Frederick S.; Eberle, Claude Clifford; Norris, Robert E.; Mielenz, Jonathan Richard

Title: Lignin-derived thermoplastic co-polymers and methods of preparation

Patent · Tue Jun 10 00:00:00 EDT 2014

OSTI ID:1134075

Naskar, Amit K.; Saito, Tomonori; Pickel, Joseph M.; Baker, Frederick S.; Eberle, Claude Clifford; Norris, Robert E.; Mielenz, Jonathan Richard

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.degree. 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.

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Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: AC05-00OR22725

Assignee:: UT-Battelle, LLC (Oak Ridge, TN)

Patent Number(s):: 8,748,537

Application Number:: 14/058,657

OSTI ID:: 1134075

Resource Relation:: Patent File Date: 2013 Oct 21

Country of Publication:: United States

Language:: English

References (6)

Process for making lignin gels in bead form Brown, Wynford https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4168371 US Patent Document 4,168,371	patent	September 1979
Lignothermoplastic Park, David W.; Neogi, Amar N.; Furtner, Jr., Ludwig https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/8383784 US Patent Document 8,383,784	patent	February 2013
Lignin-Derived Thermoplastic Co-Polymers and Methods of Preparation Naskar, Amit K.; Saito, Tomonori; Pickel, Joseph M. https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20130116383 US Patent Document 13/288360; 20130116383	patent-application	May 2013
Lignin-based carbon fibers: Oxidative thermostabilization of kraft lignin Braun, J. L.; Holtman, K. M.; Kadla, J. F. Carbon, Vol. 43, Issue 2, p. 385-394 https://doi.org/10.1016/j.carbon.2004.09.027	journal	January 2005
Lignin-based Carbon Fibers: Effect of Synthetic Polymer Blending on Fiber Properties Kubo, S.; Kadla, J. F. Journal of Polymers and the Environment, Vol. 13, Issue 2 https://doi.org/10.1007/s10924-005-2941-0	journal	April 2005
Enzymatic co-polymerization of lignin with low-molecular mass compounds Milstein, Oleg; Hüttermann, Aloys; Fründ, Rüdiger Applied Microbiology and Biotechnology, Vol. 40, Issue 5 https://doi.org/10.1007/BF00173342	journal	January 1994

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Polymer blend compositions and methods of preparation Naskar, Amit K. https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/9453129 US Patent Document 9,453,129	patent	September 2016

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