LIGNINE DERIVATIVES AND MOULDED PARTS CONTAINING THE DERIVATIVE

A lignin derivative is produced from a lignin with the empirical formula L(OH)z, where L is a lignin without hydroxyl groups, OH are free hydroxyl groups bonded to L, and z is 100% of the free hydroxyl groups bonded to L. The lignin derivative has free hydroxyl groups that are derivatized with dival...

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Main Authors EBERT, ANDREAS, ENGELMANN, GUNNAR, FINK, HANS-PETER, WOHLMANN, BERND, WÖLKI, MICHAEL
Format Patent
LanguageEnglish
French
German
Published 13.08.2014
Subjects
BASIC ELECTRIC ELEMENTS
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOUNDS OF UNKNOWN CONSTITUTION
DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS
ELECTRICITY
METALLURGY
ORGANIC CHEMISTRY
ORGANIC MACROMOLECULAR COMPOUNDS
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Summary:A lignin derivative is produced from a lignin with the empirical formula L(OH)z, where L is a lignin without hydroxyl groups, OH are free hydroxyl groups bonded to L, and z is 100% of the free hydroxyl groups bonded to L. The lignin derivative has free hydroxyl groups that are derivatized with divalent residues Rx and monovalent residues Ry that are bonded to L via an ester, ether, or urethane group. A shaped body comprising the lignin derivative can take the form of a fiber, e.g. as precursor fiber for the production of a carbon fiber. A carbon fiber can be produced from the above-mentioned precursor fiber.
Bibliography:Application Number: EP20100700166