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Polymeric material comprising modified lignin

a technology of lignin and polymer, which is applied in the direction of coatings, etc., can solve the problems of miscibility and compatibility with other polymers such as polyolefins, and the disclosure of how the functionalized lignin may be used together with a thermoplastic, and achieves less expensive, environmental protection, and good mechanical properties

Inactive Publication Date: 2019-05-02
REN FUEL K2B
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention relates to a material made up of two polymers, one of which is modified lignin. Lignin can be dissolved in a solvent and blended with various polymers, making it easier to mix and modify. The lignin content in the composition can be 1-30 weight%. The lignin can also be dearomatized. The material made of two polymers can be used without a compatibilizer and is processed well. The amount of additional compatibilizer needed is small. The first polymer can be any suitable natural or synthetic polymer, such as polyolefin, polyester, polynitrile, or polycarbonate.

Problems solved by technology

However a problem with lignin is its miscibility and compatibility with other polymer such as polyolefins.
Still there is no disclosure how the functionalized lignin may be used together with a thermoplastic.
This is a problem for many natural polymers even when they have been modified.

Method used

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  • Polymeric material comprising modified lignin
  • Polymeric material comprising modified lignin
  • Polymeric material comprising modified lignin

Examples

Experimental program
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examples

[0096]1. Renol Preparation

[0097]1.1 an Example of how to Prepare Renol of Esterified Lignin—Stearic Acid Esters.

[0098]Full substitution: According to the general procedure of esterification, following amounts were used: Lignin type A2 (1.00 g, 1 eq.), stearic anhydride (6.12 g, 2 eq.), 1-methylimidazole (0.1 ml) and dioxane (15 ml). For purification, celite (50 g) was used with 0.5 M solution of NaHCO3 (400 ml). Some tetrahydrofuran was added to wet the celite. The ester was washed off with neat hexane to give 1.97 g of stearic acid ester as a brown solid.

[0099]Partial substitutions: According to the general procedure of esterification, following amounts were used: Lignin type A2 (1.00 g, 1 eq.), stearic anhydride (0.31 or 0.92 g, 0.1 or 0.3 eq.), 1-methylimidazole (0.1 ml) and dioxane (10 ml). After the reaction the esters were purified according to the general purification of partially substituted esters. 0.1 and 0.3-eq. reactions afforded 1.12 g and 1.01 g respectively of the cor...

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Abstract

A polymeric material comprising a first polymer and a second polymer where the first polymer is a natural or a synthetic polymer and the second polymer is modified lignin. The modified lignin is modified with an alkyl containing group via linker wherein the linker is an ether group and wherein the alkyl containing group is derived from fatty acid methyl ester.

Description

RELATED APPLICATIONS[0001]This application Is A Divisional Of application Ser. No. 16 / 312,255, Entitled “Polymeric Material Comprising Modified Lignin”, Filed Dec. 20, 2018, Which Application Claims Priority To Pct / Se2017 / 051282, Entitled “Polymeric Material Comprising Modified Lignin”, Filed Dec. 15, 2017, Which application Claims Priority To Sweden Patent Application Ser. Nos. 1651653-6, Filed Dec. 15, 2016 And 1750733-6, Filed Jun. 9, 2017. The Entire Disclosures Of Which Are Hereby Incorporated By Reference. Any Disclaimer That May Have Occurred During The Prosecution Of The Above-Referenced Applications Is Hereby Expressly Rescinded, And Reconsideration Of All Relevant Art Is Respectfully Requested.FIELD OF THE INVENTION[0002]The present invention relates to a polymeric material comprising modified lignin. The material may be injection moulded and exhibits very good mechanical properties.BACKGROUND[0003]There is a need for more renewable plastic materials and lignin is potentia...

Claims

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Application Information

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IPC IPC(8): C08H7/00C08L23/06C08L23/12C08L67/02C08L33/20C08L69/00B29C45/78B29C45/00
CPCC08H6/00C08L23/06C08L23/12C08L67/02C08L33/20C08L69/00B29C45/78B29C45/0001C08L2205/08B29C2045/0091B29K2093/00C08L23/00C08L97/005C08L67/00B29K2023/06B29K2023/12B29K2033/20B29K2067/003B29K2269/00
Inventor SAMEC, JOSEPHCARRICK, CHRISTOPHEROREBOM, ALEXANDERLOFSTEDT, JOAKIM
Owner REN FUEL K2B