DERIVATIVES OF NATIVE LIGNIN FROM ANNUAL FIBRE FEEDSTOCKS

• Main Authors: GRUNERT, CHADRICK ADAM NATHANIEL JORDAN, GUTMAN, VERA MAXIMENKO, PYE, EDWARD KENDALL, BERLIN, ALEX, ORTIZ, DARWIN, BALAKSHIN, MIKHAIL YUREVICH, DELLICOLLI, HUMBERT THOMAS
• Format: Patent
• Language: English; French
• Published: 02.12.2010
• Subjects: ADHESIVES; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOUNDS OF UNKNOWN CONSTITUTION; DYES; FODDER; FOODS OR FOODSTUFFS; FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BYSUBCLASSES A23B - A23J; GENERAL PROCESSES OF COMPOUNDING; HUMAN NECESSITIES; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC CHEMISTRY; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; POLISHES; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL; THEIR PREPARATION OR CHEMICAL WORKING-UP; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OFNUTRITIVE QUALITIES, PHYSICAL TREATMENT; THEIR TREATMENT, NOT COVERED BY OTHER CLASSES; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WORKING-UP

The present invention provides annual fibre lignin derivatives having an aliphatic hydroxyl content of from about 1 mmol/g to about 3.75 mmol/g Surprisingly, it has been found that consistent and predictable antioxidant activity may be provided by selecting for derivatives of native lignin having a certain aliphatic hydroxyl content La présente invention porte sur des dérivés de lignine de fibres annuelles ayant une teneur en groupes hydroxyles aliphatiques d'environ 1 mmol/g à environ 3,75 mmol/g. Etonnamment, il a été trouvé qu'une activité anti-oxydante constante et prévisible pouvait être obtenue par la sélection de dérivés de lignine naturelle ayant une certaine teneur en groupes hydroxyles aliphatiques.