Lignin derivatives and uses thereof
AssigneeEmpire Technology Development LLC
InventorYansong Gu
Life of this patent
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Abstract
An article including a lignin derivative, where the lignin derivative includes a moiety derived from an antimicrobial compound. Also provided are methods of inhibiting microbial growth with an article including a lignin derivative.
Claims22
An article comprising a lignin derivative, wherein the lignin derivative comprises a moiety derived from an antimicrobial compound, and the article is a moldable thermoplastic material, and the lignin derivative is represented by Formula IV:
- wherein:
- R1, R2, R4, and R5 are each independently H, halo, alkyl, alkenyl, aryl or heteroaryl;
- R3 is OH or SH;
- and
- O-Lignin is a lignin residue derived from a hydroxyl group of lignin.
An article comprising a lignin derivative, wherein the lignin derivative comprises a moiety derived from an antimicrobial compound, and the article is a moldable thermoplastic material, and the lignin derivative is represented by Formula IIA:
- wherein:
- R6, R7, R8, R9, R10, R11, R12, R13, and R14 are each independently H, halo, alkyl, alkenyl, aryl or heteroaryl;
- L is an alkylene moiety or polyalkyleneoxy moiety;
- and
- O-Lignin is a lignin residue derived from a hydroxyl group of lignin.
A method of forming a lignin derivative, the method comprising:
- contacting a lignin-containing material with a compound of Formula VI to form the lignin derivative, wherein the lignin derivative comprises a moiety of Formula IIA:
- R6, R7, R8, R9, R10, R11, R12, R13, and R14 are each independently H, halo, alkyl, alkenyl, aryl or heteroaryl;
- L is an alkylene moiety or polyalkyleneoxy moiety;
- and
- O-Lignin is a lignin residue derived from a hydroxyl group of lignin.
Dependencies are inferred from the claim text.