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.

Date of Patent:
Feb. 27, 2024

Filed:

Jan. 31, 2020
Applicant:

Iowa State University Research Foundation, Inc., Ames, IA (US);

Inventors:

Eric W. Cochran, Ames, IA (US);

Xianglan Bai, Ames, IA (US);

Wangda Qu, Ames, IA (US);

Yuerui Huang, Ames, IA (US);

Yixin Luo, Ames, IA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 293/00 (2006.01); C08J 11/12 (2006.01); C01B 32/05 (2017.01); D01F 9/12 (2006.01); D01F 11/12 (2006.01);
U.S. Cl.
CPC ...
C08F 293/005 (2013.01); C01B 32/05 (2017.08); C08J 11/12 (2013.01); D01F 9/12 (2013.01); D01F 11/122 (2013.01); D01F 11/125 (2013.01); C08F 2438/01 (2013.01); C08F 2438/03 (2013.01); C08J 2397/02 (2013.01);
Abstract

One aspect of the present application relates to a method of synthesizing a thermoplastic polymer. This method includes providing a depolymerized lignin product comprising monomers and oligomers and producing lignin (meth)acrylate monomers and oligomers from the depolymerized lignin product. A thermoplastic lignin (meth)acrylate polymer is then formed by free radical polymerization of the lignin (meth)acrylate monomers and oligomers. The present application also relates to a branched chain thermoplastic lignin (meth)acrylate polymer which includes a chain transfer agent. The thermoplastic lignin based polymers of the present application can be used to prepare carbon fibers, and engineering thermoplastics. Mixtures of lignin (meth)acrylate monomers and oligomers are also disclosed.


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