СПОСОБЫ ПОЛУЧЕНИЯ ДИСПЕРСИИ ЛИГНИНА И СМОЛЫ ИЗ ДИСПЕРСИИ ЛИГНИНА

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2019 136 070 A (51) МПК C09J 197/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2019136070, 11.04.2018 (71) Заявитель(и): СТОРА ЭНСО ОЙЙ (FI) Приоритет(ы): (30) Конвенционный приоритет: 12.04.2017 SE 1750438-2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 12.11.2019 R U (43) Дата публикации заявки: 12.05.2021 Бюл. № 14 (72) Автор(ы): НАСЛИ БАКИР, Бен (SE), АРЕСКОХ, Димитри (SE) (86) Заявка PCT: (87) Публикация заявки PCT: WO 2018/189696 (18.10.2018) A Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, стр. 3, ООО "Юридическая фирма Городисский и Партнеры" R U (57) Формула изобретения 1. Способ получения дисперсии лигнина, включающий стадии а) получения водной среды, характеризующейся значением рН в диапазоне от 1 до A 2 0 1 9 1 3 6 0 7 0 (54) СПОСОБЫ ПОЛУЧЕНИЯ ДИСПЕРСИИ ЛИГНИНА И СМОЛЫ ИЗ ДИСПЕРСИИ ЛИГНИНА 2 0 1 9 1 3 6 0 7 0 IB 2018/052536 (11.04.2018) 7; b) добавления лигнина к водной среде; с) смешивания вплоть до получения дисперсии лигнина в водной среде. 2. Способ получения смолы, включающий стадии а) получения водной среды, характеризующейся значением рН в диапазоне от 1 до 7; b) добавления лигнина к водной среде; с) смешивания вплоть до получения дисперсии лигнина в водной среде; d) добавления щелочи, фенола и/или формальдегида к водной среде; и е) выдерживания смеси при температуре в диапазоне от 30°С до 95°С на протяжении, по меньшей мере, 30 минут. 3. Способ по п. 1 или 2, где стадии а), b) и с) проводят без активного нагревания водной среды. 4. Способ по любому одному из пп. 1–3, где количество лигнина в дисперсии на стадии с) находится в диапазоне 5–60% (масс.). 5. Способ по п. 4, где количество лигнина в дисперсии на стадии с) находится в диапазоне 35–60% (масс.). Стр.: 1 6. Способ по любому одному из пп. 1–5, где значение рН водной среды на стадии а) находится в диапазоне рН от 2 до 5. 7. Дисперсия, получаемая при ...

Foam products and their production

A foam product comprising an expanded foam body having cells defined therein and blowing agent held within the cells, wherein at least 5% by weight of the foam body is formed from at least one component from a renewable source and optionally wherein the average thermal conductivity of the foam product over a 25 year life span of the product is 0.025 W/m.K or less. The renewable component may be one of several types of lignin (technical, soda, organosolv or depolymerised), or may be made from bio-methanol or bio-formaldehyde.

PROCESS FOR PREPARING A BONDING RESIN

The present invention relates to a process for preparing a bonding resin, wherein a resin prepared from lignin, phenol and formaldehyde and comprising a formaldehyde scavenger, is mixed with a resin prepared from phenol and formaldehyde and comprising a formaldehyde scavenger to achieve a mixture useful as a bonding resin useful in the manufacture of oriented strand board (OSB).

PROCESS FOR PRODUCING LIGNIN PARTICLES

Described is a process for producing lignin particles in the context of a continuous process wherein a particle-free lignin-containing solution and a precipitation agent are combined in a mixing apparatus and subsequently passed out of the mixing apparatus again, wherein a mixing efficiency of the lignin-containing solution with the precipitation agent of at least 90% and a precipitation of lignin particles are achieved to form a suspension of lignin particles, characterized in that the residence time in the mixing apparatus does not exceed a duration of 30 seconds.

A METHOD FOR PREPARING AN ACTIVATED LIGNIN COMPOSITION

The present invention relates to a method for preparing an activated lignin composition. In addition, the present invention also relates to a method for further processing the thus activated lignin composition in a method for preparing a lignin-phenol formaldehyde resin. Such a lignin-phenol formaldehyde resin can be used in the manufacturing of laminates by replacing the traditional synthetic phenol formaldehyde resin.

Degradable seedling growing tray with lignin modified PBAT/PLA (poly (butyleneadipate-co-terephthalate)/polylactic acid) as base material and preparation method of degradable seedling growing tray

DERIVATIVES OF NATIVE LIGNIN FROM ANNUAL FIBRE FEEDSTOCKS

PRODUCTION OF FOAMED POROUS LIGNIN MATERIAL SUITED FOR CARBONIZATION

... 1346959 Carbon foam BAYER AG 14 April 1972 [16 April 1971] 17310/72 Heading C1A [Also in Divisions C2 and C3] A porous carbon is made by foaming an aqueous solution of lignin or a lignin derivative, e.g. a lignin sulphonate or sulphonic acid, consolidating the foam, and then carbonizing or graphitizing the foam by heating under an inert gas to at least 400‹ C. or 2000‹ C. respectively. In the examples aqueous solutions of an ammonium lignin sulphonate or a lignin sulphonic acid (derived from a calcium lignin sulphonate by ion exchange treatment), with optionally polyethylene oxide, lignin-carbon fibres, acrylic acid/acrylamide copolymer, ground coke and/or ammonia, were poured into a mould and heated to 120‹ or 150‹ C. to produce a foam, which was then heated to 1000‹ C. under nitrogen to produce a foamed carbon.

A METHOD FOR INCREASING THE REACTIVITY OF LIGNIN, A RESIN COMPOSITION COMPRISING SAID LIGNIN AND USE OF SAID RESIN COMPOSITION

The present invention relates to a method for increasing the reactivity of lignin which method comprises the following steps; providing a mixture comprising lignin and an alkali solution wherein the concentration of the alkali solution of the mixture is between 5-50% by weight, storing said mixture for a period of at least 1day whereby the reactivity of the lignin is increased. The present invention also relates to a resin composition comprising said lignin and use of said resin composition.

LIGNOCELLULOSIC MATERIAL AND MODIFICATION OF LIGNOCELLULOSIC MATERIAL

There is herein described a method for treating lignocellulosic material and lignocellulosic material formed from such a method. More particularly, there is described a method for treating lignocellulosic materia! which introduces organic material into the lignocellulosic material and which produces a modified lignocellulosic material which has increased strength and is highly durable.

método para aumentar a reatividade da lignina, uma composição de resina compreendendo a mesma e uso da referida composição de resina

Derivados de lignina nativa

FOAMS COMPOSED OF LIGNIN-FURAN DERIVATIVE POLYMERS AND PRODUCTION METHOD THEREFOR

The invention relates to a process for producing a polymer foam from lignin and a furan derivative, for example furfuryl alcohol, or furfural, which forms through acid-catalyzed polycondensation and expansion of lignin, the furan derivative and a blowing agent.

LIGNIN GELL ELECTROLYTE, METHOD OF THE LIGNIN GELL ELECTROLYTE, AND ENERGY STORING APPARATUS INCLUDING THE LIGNIN GELL ELECTROLYTE

Lignin gel-based electrolyte is disclosed. The lignin gel-based electrolyte includes a lignin polymer network containing lignin molecules and a crosslinking agent to crosslink the lignin molecules; and liquid electrolyte contained within the lignin polymer network. The lignin gel-based electrolyte may have high ionic conductivity and maintain excellent mechanical stability.

Material with fiber reinforcement composed of at least one thermoplastic and/or thermoelastic natural lignin and/or synthetic polymer with hemp fibers

The material, to be reinforced by fibers, is composed of at least one thermoplastic and/or thermoelastic synthetic and/or natural polymer. The reinforcement is through the addition of natural fibers, and preferably of hemp. The material is composed of a single polymer, or a polymer blend of synthetic and/or natural polymers. The material can be a compound polymer material in one, two or more layers, of synthetic and/or natural polymers. The natural polymer is lignin, and especially an alkali lignin solution.

Process for producing lignin particles

Described is a process for producing lignin particles in the context of a continuous process wherein a particle-free lignin-containing solution and a precipitation agent are combined in a mixing apparatus and subsequently passed out of the mixing apparatus again, wherein a mixing efficiency of the lignin-containing solution with the precipitation agent of at least 90% and a precipitation of lignin particles are achieved to form a suspension of lignin particles, characterized in that the residence time in the mixing apparatus does not exceed a duration of 30 seconds.

METHOD OF DEPOLYMERIZING POLYMERIC MATERIALS OXYGENATED

La présente invention concerne un procédé de dépolymérisation de matériaux polymères oxygénés et l'utilisation dudit procédé dans le recyclage de matériaux plastiques et la préparation de composés aromatiques pouvant être utilisés comme carburant, intermédiaires de synthèse, matières premières dans les secteurs de la construction, dans l'industrie pétrochimique, électrique, électronique, de textile, aéronautique, pharmaceutique, cosmétique, agrochimique. La présente invention concerne également l'utilisation de composés aromatiques obtenus par le procédé de dépolymérisation de matériaux polymères oxygénés selon l'invention, dans la fabrication de combustibles, de composants électroniques, de polymères plastiques, de caoutchouc, de médicaments, de vitamines, de produits cosmétiques, de parfums, de produits alimentaires, de fils et fibres synthétiques, de cuirs synthétiques, de colles, de pesticides, d'engrais.

A method for increasing the reactivity of lignin, a resin composition comprisingsaid lignin and use of said resin composition.

AGGLOMERATED PARTICULATE LIGNOSULFONATE

An agglomerated particulate lignosulfonate material may be made by introducing or forming lignosulfonate microparticles in a fluidized bed agglomerator, and introducing sufficient heated gas and lignosulfonate liquid in the agglomerator to convert the microparticles to lignosulfonate granules of enlarged size. The granules may have an average size of at least 0.1 mm, and may be used to make a dry-blended cement additive or oil well cement that may be dustless, easily poured and stored, and rapidly dissolved in water.

BIODERIVED HEAT TRANSFER FLUIDS AND METHODS OF MAKING THE SAME

The present disclosure relates to a composition that includes a lignin-derived mixture that includes at least one of a dimer, a trimer, and/or a tetramer, where the composition is characterized by a thermal stability up to a maximum temperature between about 260° C. and about 300° C. 1. A composition comprising:a lignin-derived mixture comprising at least one of a dimer, a trimer, or a tetramer, wherein:the composition is characterized by a thermal stability up to a maximum temperature between about 260° C. and about 300° C.2. The composition of claim 1 , further comprising a heat capacity between about 0.5 kJ/kg·° C. and about 4.0 kJ/kg·° C.3. The composition of claim 1 , further comprising a molecular weight between about 200 Da and about 750 Da.4. The composition of claim 1 , further comprising a dynamic viscosity between greater than zero cP and about 15 cP.5. The composition of claim 1 , wherein the dimer comprises at least one of 2-[2-(4-hydroxy-3 claim 1 ,5-dimethoxyphenyl)ethyl]-6-methoxy-4-propylphenol claim 1 , 3 claim 1 ,3′-dimethoxy-5 claim 1 ,5′-dipropyl-[1 claim 1 ,1′-biphenyl]-2 claim 1 ,2′-diol claim 1 , or 2-(2 claim 1 ,6-dimethoxy-4-propylphenoxy)-6-methoxy-4-propylphenol.6. The composition of claim 1 , wherein the trimer comprises at least one of 4-[4-(4-hydroxy-3 claim 1 ,5-dimethoxyphenyl)-hexahydrofuro[3 claim 1 ,4-c]furan-1-yl]-2-methoxy-6-(2-methoxy-4-propylphenoxy)phenol or 1-(2 claim 1 ,3-dimethyl-4-phenylbutyl)-3-(4-propylphenoxy)benzene.7. The composition of claim 1 , wherein the tetramer comprises at least one of 5-{1-[4-(2-hydroxy-3-methoxy-5-propylphenoxy)-3 claim 1 ,5-dimethoxyphenyl]propan-2-yl}-3 claim 1 ,3′-dimethoxy-5′-propyl-[1 claim 1 ,1′-biphenyl]-2 claim 1 ,2′-diol or 3-propyl-3′-{1-[4-(3-propylphenoxy)phenyl]propan-2-yl}-1 claim 1 ,1′-biphenyl.8. A method comprising:contacting a first oil with a solvent to create a mixture comprising a light phase and a heavy phase, wherein:the solvent comprises an oxygen-containing ...

Verfahren zur Herstellung von Ligninpartikel im Rahmen eines kontinuierlichen Verfahrens

Beschrieben wird ein Verfahren zur Herstellung von Ligninpartikel im Rahmen eines kontinuierlichen Verfahrens, bei welchem eine partikelfreie ligninhaltige Lösung und ein Fällungsmittel in einer Mischvorrichtung zusammengeführt werden und anschließend aus der Mischvorrichtung wieder hinausgeleitet werden, wobei eine Mischgüte der ligninhaltigen Lösung mit dem Fällungsmittel von zumindest 90% und eine Fällung von Ligninpartikel erzielt wird, wodurch eine Suspension von Ligninpartikel entsteht, und welches dadurch gekennzeichnet ist, dass die Verweilzeit in der Mischvorrichtung einen Zeitraum von 30 Sekunden nicht übersteigt.

Verfahren zur Herstellung von Ligninpartikel im Rahmen eines kontinuierlichen Verfahrens

Beschrieben wird ein Verfahren zur Herstellung von Ligninpartikel im Rahmen eines kontinuierlichen Verfahrens, bei welchem eine partikelfreie ligninhaltige Lösung und ein Fällungsmittel in einer Mischvorrichtung zusammengeführt werden und anschließend aus der Mischvorrichtung wieder hinausgeleitet werden, wobei eine Mischgüte der ligninhaltigen Lösung mit dem Fällungsmittel von zumindest 90% und eine Fällung von Ligninpartikel erzielt wird, wodurch eine Suspension von Ligninpartikel entsteht, und welches dadurch gekennzeichnet ist, dass die Verweilzeit in der Mischvorrichtung einen Zeitraum von 30 Sekunden nicht übersteigt.

THERMOPLASTIC ELASTOMER CORK COMPOSITE

A method of fabricating a cork composite material and a cork composite material. The method may comprise providing a plurality of cork particles in a volume and adding a dispersion of thermoplastic elastomer to the volume to provide a mixture of the dispersion of thermoplastic elastomer and the cork particles. The method may comprise agitating the cork particles and/or the mixture of the dispersion of thermoplastic elastomer and the cork particles and heating the mixture of the thermoplastic elastomer and the cork particles. The method may comprise allowing the mixture of the thermoplastic elastomer and the cork particles to cool. The steps of the method together may result in a plurality of coated cork particles being coated in a first layer of the thermoplastic elastomer.

SELF-EXPANDING LIGNOFOAM COMPOSITIONS AND LIGNOFOAMS MADE THEREFROM

Methods of making self-expanded lignofoams are provided. In embodiments, such a method comprises exposing a self-expanding lignofoam composition comprising raw lignin and a thermoplastic polymer to an elevated temperature for a period of time to soften the composition, desorb water from the raw lignin or induce at least some hydroxyl groups of the raw lignin to undergo dehydration reactions to generate water or both, vaporize the water, and generate pores throughout the softened composition. The method further comprises cooling the porous, softened composition to room temperature to provide the self-expanded lignofoam. The self-expanding lignofoam composition is free of an added plasticizer, an added lubricant, an added foaming agent, and an added blowing agent, and the thermoplastic polymer is not a starch, not a polyurethane, and not a polysiloxane. The resulting self-expanded lignofoams are also provided.

FOAMED POROUS SHAPED STRUCTURES

CLOSED-CELL TANNIN-BASED FOAMS WITHOUT FORMALDEHYDE

Disclosed are foam compositions and processes to form closed-cell tannin-based foams. The foams comprises a continuous polymeric phase defining a plurality of cells, wherein the continuous polymeric phase comprises a tannin-based resin derived from a tannin and a monomer, wherein the monomer comprises furfural, glyoxal, acetaldehyde, 5-hydroxymethylfurfural, acrolein, levulinate esters, sugars, 2,5-furandicarboxylic acid, 2,5-furandicarboxylic aldehyde, urea, difurfural (DFF), furfuryl alcohol, glycerol, sorbitol, lignin, or mixtures thereof, and wherein the plurality of cells comprises a plurality of open-cells and a plurality of closed-cells with an open-cell content measured according to ASTM D6226-5, of less than 50%. The foam composition also comprises a discontinuous phase disposed in at least a portion of the plurality of closed-cells, the discontinuous phase comprising one or more blowing agents.

Preparation method of high-cohesiveness antistatic fiber hydrogel

MATERIAL MICROCELLULAIRE INTER-CONNECTS CONTAINING INDUSTRIAL LIGNIN AND ITS METHOD OF PREPARATION

L'invention concerne un matériau microcellulaire interconnecté, un procédé de préparation de ce matériau à partir de résidus de l'industrie papetière de faible valeur tels que la lignine industrielle, ainsi que son utilisation pour la fabrication d'articles tels que des catalyseurs, des filtres ou des éléments absorbants. The invention relates to an interconnected microcellular material, a process for preparing this material from residues of the low-value paper industry such as industrial lignin, as well as its use for the manufacture of articles such as catalysts, filters or absorbent elements.

METHOD OF DEPOLYMERIZING OXYGENATED POLYMERIC MATERIALS

THERMOPLASTIC ELASTOMER CORK COMPOSITE

A method of fabricating a cork composite material and a cork composite material. The method may comprise providing a plurality of cork particles in a volume and adding a dispersion of thermoplastic elastomer to the volume to provide a mixture of the dispersion of thermoplastic elastomer and the cork particles. The method may comprise agitating the cork particles and/or the mixture of the dispersion of thermoplastic elastomer and the cork particles and heating the mixture of the thermoplastic elastomer and the cork particles. The method may comprise allowing the mixture of the thermoplastic elastomer and the cork particles to cool. The steps of the method together may result in a plurality of coated cork particles being coated in a first layer of the thermoplastic elastomer. 1. A method of fabricating a cork composite material , the method comprising:(a) providing a plurality of cork particles in a volume;(b) adding a dispersion of thermoplastic elastomer to the volume to provide a mixture of the dispersion of thermoplastic elastomer and the cork particles;(c) agitating the mixture of the dispersion of thermoplastic elastomer and the cork particles;(d) heating the mixture of the thermoplastic elastomer and the cork particles; and(e) allowing the mixture of the thermoplastic elastomer and the cork particles to cool;wherein steps (a), (b), (c), (d) and (e) together result in a plurality of coated cork particles being coated in a first layer of the thermoplastic elastomer.2. A method according to comprising(f) adding a dispersion of thermoplastic elastomer to the volume to provide a mixture of the dispersion of thermoplastic elastomer and the coated cork particles;(g) agitating the mixture of the dispersion of thermoplastic elastomer and the coated cork particles;(h) heating the mixture of the thermoplastic elastomer and the coated cork particles; and(i) allowing the mixture of the thermoplastic elastomer and the coated cork particles to cool;wherein steps (f), (g), (h) ...

An Improvement relating to Heating and Moulding Subdivided Cork.

... 1616. Bloxam, A. G., [Gr³nsweig & Hartmann Ges.]. March 10, 1908. Wood &c., treating with gases.-In a modification of the process of heating and moulding subdivided cork described in Specification 5389/08, [Class 87, Moulding plastic &c. substances], in which cork particles are kept in a loose condition while being heated by the method described in Specification 26,074/07, [Class 87, Moulding plastic &c. substances], which consists in passing a gas or fluid through the material, and are then moulded, the vessel is externally heated, the agitated particles all coming into contact with the heated wall of the vessel, which, for this purpose, may be rotated and may serve as the mould.

A method for preparing an activated lignin composition

The present invention relates to a method for preparing an activated lignin composition. In addition, the present invention also relates to a method for further processing the thus activated lignin composition in a method for preparing a lignin-phenol formaldehyde resin. Such a lignin-phenol formaldehyde resin can be used in the manufacturing of laminates by replacing the traditional synthetic phenol formaldehyde resin.

A PROCESS FOR DEPOLYMERIZATION OF LIGNIN

The present invention discloses a process for depolymerization of lignin to yield substituted phenolic monomers using Brönsted ionic liquid as catalyst under mild reaction conditions to obtain an overall yield of monomers up to 97%.

FOAMED POROUS SHAPED STRUCTURES

PROCESS FOR MAKING LIGNIN COMPOSITION

The invention relates to a process for making a purified lignin composition comprising a carrier liquid suitable for processing in a refinery. It comprises providing an aqueous lignin composition comprising lignin, cooking chemicals and water and adding a carrier liquid to the aqueous lignin to provide an organic phase. Then all or substantially all the water is removed from the composition. The lignin composition is processed to make the lignin more soluble in the carrier liquid in order to transfer more of the lignin to the organic phase. Cooking chemicals are removed, suitably by of washing by liquid/liquid extraction using a washing liquid. Finally washing liquid is removed.

INTERCONNECTED MICROCELLULAR MATERIAL MADE OF INDUSTRIAL LIGNIN AND METHOD FOR PREPARING SAME

L'invention concerne un matériau microcellulaire interconnecté, un procédé de préparation de ce matériau à partir de résidus de l'industrie papetière de faible valeur tels que la lignine industrielle, ainsi que son utilisation pour la fabrication d'articles tels que des catalyseurs, des filtres ou des éléments absorbants.

DERIVATIVES OF NATIVE LIGNIN

The present invention provides derivatives of native lignin having an aliphatic hydroxyl content of 2.35 mmol/g or less Suprisingly, it has been found that consistent and predictable antioxidant activity may be provided by selecting for deriatives of native lignin having a certain aliphatic hydroxyl content.

DERIVATIVES OF NATIVE LIGNIN

The present invention provides derivatives of native lignin having an aliphatic hydroxyl content of 2.35 mmol/g or less Suprisingly, it has been found that consistent and predictable antioxidant activity may be provided by selecting for deriatives of native lignin having a certain aliphatic hydroxyl content.

DERIVATIVES OF NATIVE LIGNIN FROM SOFTWOOD FEEDSTOCKS

The present invention provides softwood derivatives of native lignin having an aliphatic hydroxyl content of from about 2.5 mmol/g to about 7 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.

CLOSED-CELL TANNIN-BASED FOAMS

Disclosed are foam compositions and processes to form closed-cell tannin-based foams. The foams comprises a continuous polymeric phase defining a plurality of cells, wherein the continuous polymeric phase comprises a tannin-based resin derived from a tannin, a first monomer, and a second monomer, wherein the first monomer comprises formaldehyde, paraformaldehyde, furfural, glyoxal, acetaldehyde, 5-hydroxymethylfurfural, acrolein, levulinate esters, sugars, 2,5-furandicarboxylic acid, 2,5-furandicarboxylic aldehyde, urea, difurfural (DFF), or mixtures thereof, and the second monomer comprises furfuryl alcohol, glycerol, sorbitol, lignin, or mixtures thereof, and wherein the plurality of cells comprises a plurality of open-cells and a plurality of closed-cells with an open-cell content measured according to ASTM D6226-5, of less than 50%. The foam composition also comprises a discontinuous phase disposed in at least a portion of the plurality of closed-cells, the discontinuous phase comprising ...

LIGHT AGGREGATES Of VEGETABLE ORIGIN AND THEIR MANUFACTORING PROCESS

MATERIAL MICROCELLULAIRE INTER-CONNECTS CONTAINING INDUSTRIAL LIGNIN AND ITS METHOD OF PREPARATION

The invention relates to an interconnected microcellular material, to a method for preparing said material using low-value waste from the paper industry, such as industrial lignin, and to the use thereof for the production of items such as catalysts, filters or absorbent elements.

DERIVATIVES OF NATIVE LIGNIN

The present invention provides derivatives of native lignin having an aliphatic hydroxyl content of 2.35 mmol/g or less Suprisingly, it has been found that consistent and predictable antioxidant activity may be provided by selecting for deriatives of native lignin having a certain aliphatic hydroxyl content.

DERIVATIVES OF NATIVE LIGNIN FROM SOFTWOOD FEEDSTOCKS

The present invention provides softwood derivatives of native lignin having an aliphatic hydroxyl content of from about 2.5 mmol/g to about 7 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.

A PROCESS FOR DEPOLYMERIZATION OF LIGNIN

The present invention discloses a process for depolymerization of lignin to yield substituted phenolic monomers using Brönsted ionic liquid as catalyst under mild reaction conditions to obtain an overall yield of monomers up to 97%.

Preparation method of lignin nanoparticles and synchronous medicine carrier

FLEXIBLE MATERIAL AND FIBER-BASED NATURAL RESIN

Process for preparing a resin

The present invention relates to an improved process for preparing an aqueous suspension of lignin and the use of said suspension in the preparation of a resin.

Cell-adhesive, enzymatically crosslinked flavonoid hydrogels and methods for making same

There are provided methods for producing a hydrogel that is capable of adhesion of cells and which comprises enzymatically cross-linked conjugates of a hydrogel forming agent and a flavonoid, formed from a reaction using peroxide and peroxidase. Hydrogels produced by such methods and methods of using the hydrogels are also provided.

Method for producing a fiber-reinforced plastic substance

CORK-BASED TILE FOR PRIVACY APPARATUSES AND METHOD OF MAKING AND USING THE SAME

A privacy apparatus includes one or more substantially cork panels. Each panel can be configured to provide visual and/or sound privacy for a certain work space. The panel can be supported on a floor via one or more base elements and/or may be reinforced in rigidity and/or strength via one or more supports. Some embodiments of the apparatus can include a first panel and a second panel attached together via one or more supports press fit within openings defined in rear faces of the panels.

Preparation method of superfine lignin

PRODUCTION OF FOAMED POROUS SHAPED STRUCTURES OF LIGNIN SUITED FOR CARBONIZATION

Producing plant aggregates for preparation of construction material, comprises performing reactive extrusion of raw vegetable material in presence of peroxides, producing reaction mixture, and obtaining extrudate by heating the mixture

The process comprises performing a reactive extrusion of raw vegetable material in the presence of peroxides, producing a reaction mixture comprising a plant material, 0.5-12 wt.% of peroxide solution and 10-60 wt.% of water in an extruder device, obtaining an extrudate by heating the reaction mixture at 120-140[deg] C in the extruder device, and preparing the aggregates. The reaction mixture is cooled at 70-95[deg] C. The first plant material comprises 87-100 wt.% of starch and 0-13 wt.% of oil. The raw ground product is a grain from a cereal plant. The process comprises performing a reactive extrusion of raw vegetable material in the presence of peroxides, producing a reaction mixture comprising a plant material, 0.5-12 wt.% of peroxide solution and 10-60 wt.% of water in an extruder device, obtaining an extrudate by heating the reaction mixture at 120-140[deg] C in the extruder device, and preparing the aggregates. The reaction mixture is cooled at 70-95[deg] C. The first plant material comprises 87-100 wt.% of starch and 0-13 wt.% of oil. The raw ground product is a grain from a cereal plant, non-cereal plant and other aerial parts. The oil includes mineral oil, synthetic oil, vegetable oil and/or animal oil. The final granulates are dried and then coated using a hydrophobic coating material. An independent claim is included for light-weight plant aggregates.

INTERCONNECTED MICROCELLULAR MATERIAL MADE OF INDUSTRIAL LIGNIN AND METHOD FOR PREPARING SAME

The invention relates to an interconnected microcellular material, to a method for preparing said material using low-value waste from the paper industry, such as industrial lignin, and to the use thereof for the production of items such as catalysts, filters or absorbent elements.

CLOSED-CELL TANNIN-BASED FOAMS WITHOUT FORMALDEHYDE

Disclosed are foam compositions and processes to form closed-cell tannin-based foams. The foams comprises a continuous polymeric phase defining a plurality of cells, wherein the continuous polymeric phase comprises a tannin-based resin derived from a tannin and a monomer, wherein the monomer comprises furfural, glyoxal, acetaldehyde, 5-hydroxymethylfurfural, acrolein, levulinate esters, sugars, 2,5-furandicarboxylic acid, 2,5-furandicarboxylic aldehyde, urea, difurfural (DFF), furfuryl alcohol, glycerol, sorbitol, lignin, or mixtures thereof, and wherein the plurality of cells comprises a plurality of open-cells and a plurality of closed-cells with an open-cell content measured according to ASTM D6226-5, of less than 50%. The foam composition also comprises a discontinuous phase disposed in at least a portion of the plurality of closed-cells, the discontinuous phase comprising one or more blowing agents.

CORK-BASED TILE FOR PRIVACY APPARATUSES AND METHOD OF MAKING AND USING THE SAME

A privacy apparatus includes one or more substantially cork panels. Each panel can be configured to provide visual and/or sound privacy for a certain work space. The panel can be supported on a floor via one or more base elements and/or may be reinforced in rigidity and/or strength via one or more supports. Some embodiments of the apparatus can include a first panel and a second panel attached together via one or more supports press fit within openings defined in rear faces of the panels. 1. A privacy apparatus comprising:a support element having at least one projecting member; anda first panel comprised of cork having a front face and a rear face opposite the rear face, the first panel having at least one opening defined in the rear face that is sized to resiliently receive the at least one projecting member of the support element.2. The privacy apparatus of claim 1 , wherein the first panel is comprised of cork molded with or without a binder.3. The privacy apparatus of claim 1 , wherein the at least one projecting member of the support element is comprised of a first projecting member and a second projecting member that projects in a direction that is opposite the direction of projection for the first projecting member; andwherein the first projecting member is receivable within the at least one opening defined in the rear face of the first panel.4. The privacy apparatus of claim 3 , comprising:a second panel comprised of cork having a front face and a rear face opposite the rear face, the second panel having at least one opening defined in the rear face of the second panel that is sized to resiliently receive the second projecting member of the support element.5. The privacy apparatus of claim 4 , wherein the rear face of the first panel contacts the rear face of the second panel.6. The privacy apparatus of claim 5 , comprising base elements connected between the first and second panels to support the panels on a work surface.7. The privacy apparatus of claim 6 ...

DERIVATIVES OF NATIVE LIGNIN FROM SOFTWOOD FEEDSTOCKS

The present invention relates to softwood lignin derivatives having an aliphatic hydroxyl content of from about 2.5 mmol/g to about 7 mmol/g lignin, and the preparation method thereof. The lignin derivatives have a desired antioxidant activity characterized by radical scavenging index (RSI). Another aspect of the invention relates to compositions comprising the softwood lignin derivative. Another aspect of the invention relates to a use of the softwood lignin derivatives comprising incorporating the softwood lignin derivatives into polymer compositions.

DERIVATIVES OF NATIVE LIGNIN

The present invention provides derivatives of native lignin having an aliphatic hydroxyl content of 2.35 mmol/g or less Suprisingly, it has been found that consistent and predictable antioxidant activity may be provided by selecting for deriatives of native lignin having a certain aliphatic hydroxyl content.

DERIVATIVES OF NATIVE LIGNIN FROM HARDWOOD FEEDSTOCKS

The present invention provides hardwood derivatives of native lignin having an aliphatic hydroxyl content of from about 5.2 mmol/g to about 7 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.

DERIVATIVES OF NATIVE LIGNIN FROM ANNUAL FIBRE FEEDSTOCKS

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

METHODS FOR MAKING COMPOSITE PRODUCTS CONTAINING LIGNOCELLULOSE SUBSTRATES

A method for making a composite product can include combining a plurality of lignocellulose substrates and a binder to produce a resinated furnish. The binder can be or include a polyphenolic compound, a free radical precursor, and an unsaturated compound having two or more unsaturated carbon-carbon bonds. At least one of the unsaturated carbon-carbon bonds is a pi-bond that is not conjugated with an aromatic moiety and is capable of free radical addition. The method can also include pressing the resinated furnish between at least two surfaces in a press, where at least one of the at least two surfaces can be a porous surface, and at least partially curing the binder in the resinated furnish to produce a composite product. 1. A method for making a composite product , comprising:combining a plurality of lignocellulose substrates and a binder to produce a resinated furnish, wherein the binder comprises a polyphenolic compound, a free radical precursor, and an unsaturated compound having two or more unsaturated carbon-carbon bonds, and wherein at least one of the unsaturated carbon-carbon bonds is a pi-bond that is not conjugated with an aromatic moiety and is capable of free radical addition;pressing the resinated furnish between at least two surfaces in a press, wherein at least one of the at least two surfaces is a porous surface; andat least partially curing the binder in the resinated furnish to produce a composite product.2. The method of claim 1 , wherein the porous surface is a press screen claim 1 , a caul screen claim 1 , a mesh screen claim 1 , a perforated platen claim 1 , a press weave claim 1 , or a caul plate.3. The method of claim 1 , wherein each of the at least two surfaces is a porous surface.4. The method of claim 1 , wherein the at least two surfaces comprises a first facial contact surface and a second facial contact surface claim 1 , wherein the composite product comprises a first face opposite of a second face claim 1 , and wherein the first ...

Derivatives of native lignin

The present invention provides derivatives of native lignin having a certain aliphatic hydroxyl content. 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.

DERIVATIVES OF NATIVE LIGNIN FROM HARDWOOD FEEDSTOCKS

DERIVATIVES OF NATIVE LIGNIN, LIGNIN-WAX COMPOSITIONS, THEIR PREPARATION, AND USES THEREOF

A wax composition comprising a lignin derivative wherein the derivative has a total hydroxyl content of from about 0.1 mmol/g to about 7 mmol/g.

DERIVATIVES OF NATIVE LIGNIN, LIGNIN-WAX COMPOSITIONS, THEIR PREPARATION, AND USES THEREOF

A wax composition comprising a lignin derivative wherein the derivative has a total hydroxyl content of from about 0.1 mmol/g to about 7 mmol/g.

Flexible composite material for fabricating a panel, a furniture fabric, a blind, a casing and a bag, comprises natural products derived from petrochemicals, and a fibrous support including weave fabric, knit fabric and nonwoven fabric

Matériau composite souple naturel ayant une teneur en produits issus de la pétrochimie inférieure à 5 % et comprenant un support fibreux d'un poids écru compris entre 50 et 1000 g/m2 et présentant une épaisseur inférieure à 1 cm, ledit support étant choisi dans le groupe comprenant les tissus fins, les tricots et les non-tissés, et étant imprégné d'une résine comprenant du tannin et au moins un agent réticulant.

CLOSED-CELL TANNIN-BASED FOAMS

Disclosed are foam compositions and processes to form closed-cell tannin-based foams. The process comprises forming an agglomerate-free solution comprising a tannin, a first monomer, a second monomer, and water, wherein the first monomer comprises formaldehyde, paraformaldehyde, furfural, glyoxal, acetaldehyde, 5-hydroxymethylfurfural, acroleim, levulinate esters, sugars, 2,5-furandicarboxylic acid, 2,5-furandicarboxylic aldehyde, urea, difurfural (DFF), or mixtures thereof, and the second monomer comprises furfuryl alcohol, glycerol, sorbitol, lignin, or mixtures thereof. The process also comprises mixing one or more blowing agents with the agglomerate-free solution to form a pre-foam mixture and mixing an acid catalyst with the pre-foam mixture to form a foam composition. The process comprises adding a surfactant to at least one of the agglomerate-free solution, pre-foam mixture, or the foam composition. The process further comprises processing the foam composition to form a tannin-based ...

Derivatives of native lignin, lignin-wax compositions, their preparation, and uses thereof

A wax composition comprising a lignin derivative wherein the derivative has a total hydroxyl content of from about 0.1 mmol/g to about 7 mmol/g.

LIGNIN PELLETS AND PROCESS FOR PRODUCING SAME

Lignin pellets comprising fused lignin are described herein. The lignin pellets may further comprise a processing aid, and/or a surfactant, and/or a chemical modifying agent, and/or a compatibilizer and/or a thermoplastic polymer. An extrusion process for producing the lignin pellets and their use in the manufacture of lignin thermoplastic blend products, polyols, polyphenols, polyaromatics and polyurethanes is also disclosed herein. The extruded lignin pellet may be dry-blended with additional thermoplastic and/or additive and then directly processed using processes such as injection molding, compression molding, extrusion, extrusion coating, blowing, thermoforming, stamping, foaming, fiber drawing, calendering or rolling. 1. A lignin pellet comprising a fused lignin.2. The lignin pellet of claim 1 , wherein the pellet comprises a moisture content of less than about 5%.3. The lignin pellet of or claim 1 , wherein the lignin pellet comprises a moisture content of less than about 2%.4. The lignin pellet of any one of to claim 1 , further comprising an additive.5. The lignin pellet of claim 4 , wherein the additive is at least one of a processing aid claim 4 , a surfactant claim 4 , a chemical modifying agent claim 4 , a compatibilizer or a thermoplastic polymer.6. The lignin pellet of claim 5 , wherein the additive is a thermoplastic polymer.7. The lignin pellet of claim 5 , wherein the additive is a processing aid.8. The lignin pellet of claim 5 , wherein the additive is a processing aid and a compatibilizer.9. The lignin pellet of claim 5 , wherein the additive is a processing aid claim 5 , a compatibilizer and a thermoplastic polymer.10. The lignin pellet of any one of to claim 5 , wherein the pellet is an extruded lignin pellet.11. The lignin pellet of any one of to claim 5 , wherein the pellet is a non-porous pellet.12. The lignin pellet of any one of to claim 5 , wherein the pellet is a porous pellet.13. The lignin pellet of any one of to claim 5 , wherein the ...

DERIVATIVES OF NATIVE LIGNIN, LIGNIN-WAX COMPOSITIONS, THEIR PREPARATION AND USES THEREOF

A wax composition comprising a lignin derivative wherein the derivative has a total hydroxyl content of from about 0.1 mmol/g to about 7 mmol/g.

Natural fibre composite and method of production and use in modular construction

The present invention provides a method of producing reinforced composite containing fibre in a polymer matrix comprising the steps of: a. heating and drying a natural fibre-containing material in a hot blending chamber; b. sieving the dried natural fibre-containing material to produce a loose, soft and clean natural fibre free of contaminants and unwanted elements; c. shredding the fibre; d. d. pre-heating the shredded fibre; e. blending polymer, a nitrogen blowing agent a lubricant with the shredded fibre and optionally a coupling agent; and f. heating the blended mixture to the melting point of the polymer. Also provided is a composite produced by the method and a composite comprising a natural fibre-containing material, a polymer, a nitrogen blowing agent, a lubricant and optionally a coupling agent. Various modular constructions and a weighing assembly made from the composite are also provided.

AN ORGANIC-INORGANIC HYBRID MATERIAL COMPRISING A METAL AND LIGNIN, PROCESSES FOR PREPARING THE SAME AND USES THEREOF

An organic-inorganic hybrid material is disclosed comprising a metal compound and a lignin fraction, as well as processes for preparing the same and uses as an antimicrobial agent in agriculture, and in human and animal food industry.

BINDER COMPOSITION ON AN OLIGOESTER BASIS, PRODUCTION THEREOF, AND USE THEREOF FOR BINDING ORGANIC OR MINERAL FIBRES

La présente invention concerne une composition de liant thermodurcissable contenant de l'eau et un ester oligomérique hydrosoluble d'au moins un glucide choisi parmi les sucres réducteurs, les sucres non- réducteurs et les sucres hydrogénés, les sucres hydrogénés étant choisis dans le groupe constitué de l'érythritol, l'arabitol, le xylitol, le sorbitol, le mannitol, l'iditol, le maltitol, l'isomaltitol, le lactitol, le cellobitol, le palatinitol, le maltotritol et les produits d'hydrogénation d'hydrolysats d'amidon ou de matières ligno-cellulosiques, et d'au moins un acide polycarboxylique, la composition de liant ayant une teneur en matières solides comprise entre 50 % et 80 % en poids, l'ester oligomérique hydrosoluble représentant au moins 80 % en poids, de préférence au moins 90 % en poids, des matières solides de la composition de liant thermodurcissable, et la composition de liant thermodurcissable contenant moins de 10 % en poids, de préférence moins de 5 % en poids, rapporté à ...

LIGNIN DEPOLYMERIZATION PROCESS USING CHEMICALS RECOVERABLE BY THE KRAFT RECOVERY CYCLE

The present relates to a process for the depolymerization of lignin using chemicals recoverable by the soda or kraft mill recovery cycles. The process involves the use of sodium hydroxide or white liquor to depolymerize lignin in black liquor or other lignins (e.g. hydrolysis lignin, kraft lignin) by conducting the reaction at 170-250 °C for up to 3 hours in the presence or absence of a co-solvent and a capping agent. The depolymerized lignin is then obtained by acidifying the reaction products to a low pH to precipitate the de-polymerized lignin, followed by particle coagulation, cake filtration and washing with acid and water to obtain a purified depolymerized lignin product.

METHODS FOR PREPARING A LIGNIN DISPERSION AND A RESIN FROM THE LIGNIN DISPERSION

The present invention relates to an improved process for preparing an aqueous dispersion of lignin and the use of said suspension in the preparation of a resin.

LIGNIN PELLETS AND PROCESS FOR PRODUCING SAME

Lignin pellets comprising fused lignin are described herein. The lignin pellets may further comprise a processing aid, and/or a surfactant, and/or a chemical modifying agent, and/or a compatibilizer and/or a thermoplastic polymer. An extrusion process for producing the lignin pellets and their use in the manufacture of lignin thermoplastic blend products, polyols, polyphenols, polyaromatics and polyurethanes is also disclosed herein. The extruded lignin pellet may be dry-blended with additional thermoplastic and/or additive and then directly processed using processes such as injection molding, compression molding, extrusion, extrusion coating, blowing, thermoforming, stamping, foaming, fiber drawing, calendering or rolling.

HIGH PERFORMANCE LIGNIN-ACRYLONITRILE POLYMER BLEND MATERIALS

A polymer blend material comprising: (i) a lignin component having a weight-average molecular weight of up to 1,000,000 g/mol; and (ii) an acrylonitrile-containing copolymer rubber component comprising acrylonitrile units in combination with diene monomer units, and having an acrylonitrile content of at least 20 mol%; wherein said lignin component is present in an amount of at least 5 wt% and up to about 95 wt% by total weight of components (i) and (ii); and said polymer blend material possesses a tensile yield stress of at least 5 MPa, or a tensile stress of at least 5 MPa at 10% elongation, or a tensile stress of at least 5 MPa at 100% elongation. Methods for producing the polymer blend, molded forms thereof, and articles thereof, are also described.

DERIVATIVES OF NATIVE LIGNIN FROM HARDWOOD FEEDSTOCKS

The present invention provides hardwood derivatives of native lignin having an aliphatic hydroxyl content of from about 5.2 mmol/g to about 7 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.

High-temperature resistant hydrogel for microelectronic device

INTERCONNECTED MICROCELLULAR MATERIAL MADE OF INDUSTRIAL LIGNIN AND METHOD FOR PREPARING SAME

L'invention concerne un matériau microcellulaire interconnecté, un procédé de préparation de ce matériau à partir de résidus de l'industrie papetière de faible valeur tels que la lignine industrielle, ainsi que son utilisation pour la fabrication d'articles tels que des catalyseurs, des filtres ou des éléments absorbants.

DERIVATIVES OF NATIVE LIGNIN

DERIVATIVES OF NATIVE LIGNIN FROM SOFTWOOD FEEDSTOCKS

METHOD FOR PRODUCING A HIGH-PHENOLIC-CONTENT BIOOIL

Lignocellulosic material and modification of lignocellosic material

A method for preparing an activated lignin composition

The present invention relates to a method for preparing an activated lignin composition. In addition, the present invention also relates to a method for further processing the thus activated lignin composition in a method for preparing a lignin-phenol formaldehyde resin. Such a lignin-phenol formaldehyde resin can be used in the manufacturing of laminates by replacing the traditional synthetic phenol formaldehyde resin.

Method for preparing graphene/lignin polymer composite material

PROCESS FOR PREPARING A LIGNIN-BASED RESIN

The present invention relates to an improved process for preparing an aqueous dispersion of lignin and the use of said suspension in the preparation of a resin.

METHOD OF DEPOLYMERISING PHENOLIC POLYMERS

Chemisch modifiziertes Lignin und Verfahren zu dessen Herstellung

Die vorliegende Erfindung betrifft ein Verfahren zur chemischen Modifizierung von Lignin. Die Erfindung betrifft auch chemisch modifiziertes Lignin, das nach dem erfindungsgemäßen Verfahren erhalten werden kann, sowie durch Pressen erhältliche Formkörper und ein Verfahren zur Herstellung solcher Formkörper. Die Erfindung betrifft auch die Verwendung eines erfindungsgemäßen Formkörpers insbesondere bei der Herstellung von Fahrzeugen, Möbeln, Laminatböden und/oder Bauwerken.

natural fibre and method of production and use in modular construction

Carbon foam materials

A method of forming a carbon foam precursor for use in the formation of carbon foam materials. The carbon foam precursor comprises an aerogel of polymeric material which has a coating layer thereon, the coating layer comprising a material susceptible to dielectric heating, for example carbon nanotubes. The carbon foam precursor is suitable for forming into a carbon foam material using a dielectric heating step, despite the aerogel of polymeric material not being susceptible to dielectric heating, without adversely affecting the structure and physical properties of the carbon foam so formed. A carbon foam precursor, a carbon foam material and a method of forming such a carbon material are also disclosed. Preferably the polymeric material is lignin. In a preferred embodiment, the dielectric heating susceptible heating material is carbon nanotubes. Preferably, the aerogel is heated to at least 400°C to carbonize the foam precursor.

Binder composition on an oligoester basis, production thereof, and use thereof for binding organic or mineral fibres

The present invention relates to a thermosetting binder composition containing water and a water-soluble oligomer ester of at least one carbohydrate chosen among the reducing sugars, the non-reducing sugars and the hydrogenated sugars, said hydrogenated sugars being chosen from the group consisting of erythritol, arabitol, xylitol, sorbitol, mannitol, iditol, maltitol, isomaltitol, lactitol, cellobitol, palatinitol, maltotritol and the products of hydrogenation of starch hydrolysates or lignocellulose materials, and of at least one polycarboxylic acid, said binder composition having a solid content of between 50 and 80% by weight, the water-soluble oligomer ester accounting for at least 80% by weight, preferably at least 90% by weight, of the solid matter of the thermosetting binder composition, and the thermosetting binder composition containing less than 10% by weight, preferably less than 5% by weight, in relation to the solid content, of free sorbitol. The invention also relates to ...

FLAVONOID HYDROGEL

There is provided methods for producing a hydrogel comprising conjugates of a hydrogel forming agent and a flavonoid including a method for producing a hydrogel that is capable of adhesion of cells and which comprises enzymatically cross-linked conjugates of a hydrogel forming agent and a flavonoid. There is also provided a method for producing a hydrogel comprising conjugates of a hydrogel forming agent and a flavonoid without the addition of an exogenous peroxide or peroxidase or without the addition of an exogenous peroxide. Hydrogels produced by such methods and methods of using the hydrogels are also described herein.

METHOD FOR PRODUCING STABILIZED LIGNIN HAVING A HIGH SPECIFIC SURFACE AREA

The present invention relates to a method for producing lignin in particle form from a liquid containing lignin-containing raw material, the method comprising at least: reacting the liquid with a cross-linking agent (step a)), precipitating the lignin, thereby forming lignin particles in the liquid (step b)), and separating the liquid from the lignin particles formed in step b) (step c)), and wherein, in step b), the liquid is heat-treated, after precipitation, at a temperature in the range of 60 to 200° C. for a period of 1 minute to 6 hours, and/or, in an additional step d) after step c), the lignin particles separated from the liquid are heat-treated at a temperature in the range of 60 to 600° C. The invention also relates to lignin particles which can be obtained according to the method, lignin particles per se, a use of the lignin particles as filler, and a rubber composition comprising, inter alia, a filler component, the latter containing lignin particles as a filler.

AGGLOMERATED PARTICULATE LIGNOSULFONATE

FLAVONOID HYDROGEL

Flavonoid hydrogel

There is provided methods for producing a hydrogel comprising conjugates of a hydrogel forming agent and a flavonoid including a method for producing a hydrogel that is capable of adhesion of cells and which comprises enzymatically cross-linked conjugates of a hydrogel forming agent and a flavonoid. There is also provided a method for producing a hydrogel comprising conjugates of a hydrogel forming agent and a flavonoid without the addition of an exogenous peroxide or peroxidase or without the addition of an exogenous peroxide. Hydrogels produced by such methods and methods of using the hydrogels are also described herein.

Agglomerated particulate lignosulfonate

An agglomerated particulate lignosulfonate material may he made by introducing or forming lignosulfonate microparticles in a fluidized bed agglomerator, and introducing sufficient heated gas and lignosulfonate liquid in the agglomerator to convert the microparticles to lignosulfonate granules of enlarged size. The granules may have an average size of at least 0.1 mm, and may be used to make a dry-blended cement additive or oil well cement that may be dustless, easily poured and stored, and rapidly dissolved in water.

A METHOD FOR PREPARING AN ACTIVATED LIGNIN COMPOSITION

The present invention relates to a method for preparing an activated lignin composition. In addition, the present invention also relates to a method for further processing the thus activated lignin composition in a method for preparing a lignin-phenol formaldehyde resin. Such a lignin-phenol formaldehyde resin can be used in the manufacturing of laminates by replacing the traditional synthetic phenol formaldehyde resin. 131-. (canceled)32. A method for manufacturing a high pressure laminate comprising a step of preparing a core layer and a step of pressing said core layer in a press using an elevated temperature and an elevated pressure , wherein said step of preparing said core layer comprises impregnating a paper with a resin mixture and constructing a stack of resin impregnated papers , wherein said resin mixture comprises a lignin-phenol formaldehyde resin prepared with lignin methylolation and phenol methylolation steps , said step of lignin methylolation comprises:i) providing a liquid lignin having free active hydrogen positions;ii) heating said liquid lignin to a temperature in a range of 60° C. to 85° C.;iii) adding formaldehyde to said heated liquid lignin under stirring conditions, wherein the formaldehyde is added in a stoichiometric excess ratio of >1:1 relative to the lignin's free active hydrogen positions;iv) maintaining the temperature of the mixture according to iii) in a range of 60° C. to 85° C., during a time period of at least 10 minutes thereby obtaining an activated lignin composition,said step of phenol methylolation comprises:v) optionally heating said activated lignin composition of step iv) to a temperature in a range of 50° C. to 90° C.;vi) adding phenol to said activated lignin composition;vii) adjusting the temperature of the mixture of step vi) to be within the range of 60° C. to 90° C.;viii)adding formaldehyde to said mixture of step vii),ix) comprising of heating and maintaining the mixture of step viii) at a temperature in a range ...

HIGH PERFORMANCE LIGNIN-ACRYLONITRILE POLYMER BLEND MATERIALS

A polymer blend material comprising: (i) a lignin component having a weight-average molecular weight of up to 1,000,000 g/mol; and (ii) an acrylonitrile-containing copolymer rubber component comprising acrylonitrile units in combination with diene monomer units, and having an acrylonitrile content of at least 20 mol %; wherein said lignin component is present in an amount of at least 5 wt % and up to about 95 wt % by total weight of components (i) and (ii); and said polymer blend material possesses a tensile yield stress of at least 5 MPa, or a tensile stress of at least 5 MPa at 10% elongation, or a tensile stress of at least 5 MPa at 100% elongation. Methods for producing the polymer blend, molded forms thereof, and articles thereof, are also described. 1. A polymer blend material comprising:(i) a lignin component having a weight-average molecular weight of up to 1,000,000 g/mol; and(ii) an acrylonitrile-containing copolymer rubber component comprising acrylonitrile units in combination with diene monomer units, and having an acrylonitrile content of at least 20 mol %;wherein said lignin component is present in an amount of at least 5 wt % and up to about 95 wt % by total weight of components (i) and (ii); andsaid polymer blend material possesses either a tensile yield stress of at least 5 MPa, or a tensile stress of at least 5 MPa at 10% elongation, or a tensile stress of at least 5 MPa at 100% elongation.2. The polymer blend material of claim 1 , wherein said acrylonitrile content is at least 30 mol %.3. The polymer blend material of claim 1 , wherein said acrylonitrile content is at least 35 mol %.4. The polymer blend material of claim 1 , wherein said acrylonitrile content is at least 40 mol %.5. The polymer blend material of claim 1 , wherein said lignin is a softwood lignin claim 1 , a hardwood lignin claim 1 , or a grass-derived lignin.6. The polymer blend material of claim 1 , wherein said lignin has a weight-average molecular weight of up to 10 claim 1 , ...

LIPOPHILLICALLY DISPERSED PHENOLIC POLYMER PARTICLES

A composition comprises phenolic polymer particles and a surfactant, on the phenolic polymer particles. The composition is lipophilic. A dispersion comprises the phenolic polymer particles, the surfactant, and a carrier vehicle. The carrier vehicle may be a cosmetically-acceptable fluid or a wax that is lipophilic. 1. A composition , comprising:phenolic polymer particles, anda surfactant, on the phenolic polymer particles.2. The composition of claim 1 , wherein the phenolic polymer particles comprise a substance selected from the group consisting of lignins claim 1 , humates claim 1 , tannins claim 1 , botanical extracts containing water soluble and/or water dispersible components claim 1 , and combinations thereof.36-. (canceled)7. The composition of claim 1 , wherein the surfactant comprises a substance selected from the group consisting of fatty alcohols and polyols claim 1 , fatty acids claim 1 , polyglyceryl esters claim 1 , polyglyceryl polyesters claim 1 , polyesters with affinic hydroxyl claim 1 , amine or amide groups claim 1 , polyurethanes with affinic hydroxyl claim 1 , amine or amide groups claim 1 , polyamides with affinic hydroxyl claim 1 , amine or amide groups claim 1 , polyacrylates with affinic hydroxyl claim 1 , amine or amide groups claim 1 , phosphate esters claim 1 , polymeric phosphoric acid salts claim 1 , phospholipids claim 1 , ceramides claim 1 , sphingosines claim 1 , combinations thereof claim 1 , copolymers thereof claim 1 , and cross-polymers thereof.8. The composition of claim 1 , wherein the phenolic polymer particles have a particle size of 0.001-10.0 microns (μm).910-. (canceled)11. A dispersion claim 1 , comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the composition of , and'}a carrier vehicle.12. (canceled)13. The dispersion of claim 11 , wherein the carrier vehicle comprises a substance selected from the group consisting of triglycerides claim 11 , esters claim 11 , natural oils and butters claim 11 , alkanes ...

Process for Producing Humic Acid-Derived Conductive Foams

A process for producing a humic acid (HA)-derived foam, comprising: (a) preparing a HA dispersion having multiple HA molecules and an optional blowing agent dispersed in a liquid medium having a blowing agent-to-HA weight ratio from 0/1.0 to 1.0/1.0; (b) dispensing and depositing the HA dispersion onto a surface of a supporting substrate to form a wet HA layer; (c) partially or completely removing liquid medium from the wet HA layer to form a dried HA layer; and (d) heat treating the dried HA layer at a first heat treatment temperature from 80° C. to 3,200° C. at a desired heating rate sufficient to induce volatile gas molecules from the non-carbon elements or to activate the blowing agent for producing the HA-derived foam. 1. A process for producing a humic acid-derived foam , said process comprising:(a) preparing a humic acid dispersion having multiple humic acid molecules or sheets dispersed in a liquid medium, wherein said humic acid is selected from a group consisting of oxidized humic acid, reduced humic acid, fluorinated humic acid, chlorinated humic acid, brominated humic acid, iodized humic acid, hydrogenated humic acid, nitrogenated humic acid, doped humic acid, chemically functionalized humic acid, and a combination thereof and wherein said dispersion contains an optional blowing agent having a blowing agent-to-humic acid weight ratio from 0/1.0 to 1.0/1.0;(b) dispensing and depositing said humic acid dispersion onto a surface of a supporting substrate to form a wet layer of humic acid;(c) partially or completely removing said liquid medium from the wet layer of humic acid to form a dried layer of humic acid; and{'sub': '002', '(d) heat treating the dried layer of humic acid at a first heat treatment temperature from 80° C. to 3,200° C. at a desired heating rate sufficient to induce volatile gas molecules from said non-carbon elements or to activate said blowing agent for producing said humic acid-derived foam, which is composed of multiple pores and pore ...

Lipophillically dispersed phenolic polymer particles

A composition comprises phenolic polymer particles and a surfactant, on the phenolic polymer particles. The composition is lipophilic. A dispersion comprises the phenolic polymer particles, the surfactant, and a carrier vehicle. The carrier vehicle may be a cosmetically-acceptable fluid or a wax that is lipophilic.

Biodegradable and compostable vessels, such as coffee pods, coated with pecvd coatings or layers

Embodiments of the present disclosure are directed to a vessel comprising a wall at least partially made of a compostable or biodegradable material, having an interior surface enclosing a lumen and an exterior surface; and a PECVD coating set on the interior surface, the exterior surface, or both. The PECVD coating set comprises a barrier coating or layer of SiOx, in which x is from about 1.5 to about 2.9 as measured by XPS. The PECVD coating set optionally further comprises a tie coating or layer comprising SiOxCy, in which x is from about 0.5 to about 2.4 and y is from about 0.6 to about 3 as measured by X-ray photoelectron spectroscopy (XPS); a pH protective coating or layer comprising SiOxCy, in which x is from about 0.5 to about 2.4 and y is from about 0.6 to about 3 as measured by XPS; or both. The vessel may also include a lacquer coating between the surface of the wall and the PECVD coating set. In some embodiments, the vessel may be a single use coffee or tea pod.

ACETOACETYLATED AND (METH)ACRYLATED RESIN COMPOSITIONS AND THERMOSETS AND FOAMS THEREFROM

The invention relates to acetoacetylated lignin resin compositions comprising the reaction product of lignin and an acetoacetate ester. The invention also relates to (meth)acrylated lignin resin compositions comprising the reaction product of lignin and a (meth)acrylic compound. The invention also relates to methods of making the acetoacetylated and (meth)acrylated lignin resin compositions. The invention also relates to curable coating compositions comprising the acetoacetylated and (meth)acrylated lignin resin compositions. The invention also relates to methods of making the curable coating compositions of the invention. The invention also relates to methods of applying curable coating compositions of the invention to substrates. The invention also relates to articles of manufacture comprising a curable coating composition of the invention and a method of making such article. The invention also relates to foam materials comprising the reaction product of an acetoacetylated resin composition, a polyamine compound, and a physical blowing agent and/or a polysiloxane compound. 1. A foam material , comprising the reaction product of:a) at least one acetoacetylated resin composition;b) at least one polyamine compound;c) at least one physical blowing agent and/or at least one polysiloxane compound;d) optionally at least one surfactant;e) optionally phytic acid; andf) optionally at least one additive.2. The foam of claim 1 , wherein the acetoacetylated resin composition comprises the reaction product of:a1) at least one polyol;a2) optionally lignin; anda3) at least one acetoacetate ester.3. The foam of claim 2 , wherein the at least one polyol is selected from the group consisting of a diol claim 2 , a triol claim 2 , and mixtures thereof.4. The foam of claim 3 , wherein the diol is selected from the group consisting of diethylene glycol claim 3 , 2-butyl-2-ethyl-1 claim 3 ,3-propanediol claim 3 , ethylene glycol claim 3 , 1 claim 3 ,2-propanediol claim 3 , 1 claim 3 ,3- ...

AGGLOMERATED PARTICULATE LIGNOSULFONATE

An agglomerated particulate lignosulfonate material may be made by introducing or forming lignosulfonate microparticles in a fluidized bed agglomerator, and introducing sufficient heated gas and lignosulfonate liquid in the agglomerator to convert the microparticles to lignosulfonate granules of enlarged size. The granules may have an average size of at least 0.1 mm, and may be used to make a dry-blended cement additive or oil well cement that may be dustless, easily poured and stored, and rapidly dissolved in water. 1. A method for making a particulate material , which method comprises:a) introducing or forming microparticles comprising lignosulfonate in a fluidized bed agglomerator;b) introducing heated gas and a liquid comprising lignosulfonate in the agglomerator; andc) enlarging the microparticles to form lignosulfonate granules having higher density or slower moisture absorption than spray-dried powder made using the same liquid comprising lignosulfonate.2. A method according to comprising introducing the liquid comprising lignosulfonate by spraying it onto the fluidized bed.3. A method according to wherein the heated gas is air at about 170 to about 250° C.4. A method according to wherein the bed has a bed temperature of about 60 to about 80° C.5. A method according to comprising enlarging the microparticles to form lignosulfonate granules having an average size of about 0.1 to about 10 mm.6. A method according to comprising enlarging the microparticles to form lignosulfonate granules having an average size of about 0.1 to about 2 mm.7. A method according to comprising forming lignosulfonate granules having an uncompressed bulk density of about 550 to about 800 kg/m.825-. (canceled)26. A method according to comprising enlarging the microparticles to form lignosulfonate granules having an average size of about 0.1 to about 1 mm.27. A method according to wherein the lignosulfonate granules contain less than 5 wt. % particles having a size less than 0.1 mm.28. A ...

INTERCONNECTED MICROCELLULAR MATERIAL MADE OF INDUSTRIAL LIGNIN AND METHOD FOR PREPARING SAME

An interconnected microcellular material, a method for preparing said material using low-value waste from the paper industry, such as industrial lignin, and the use thereof for the production of items such as catalysts, filters or absorbent elements. 1. Method for the preparation of an interconnected microcellular material by polymerization of a concentrated emulsion comprising:an external dispersion phase comprising, in a solvent, a surfactant and a solution comprising at least one polymerizable monomer contained in industrial lignin, andan internal dispersed phase comprising a solvent that is immiscible with said polymerizable monomer and/or with the solvent of the external dispersion phase.2. Method according to claim 1 , in which the volume percent of the internal dispersed phase of the concentrated emulsion is greater than or equal to approximately 55%.3. Method according to claim 1 , in which said external dispersion phase is an aqueous phase and where said immiscible solvent is an oil having a melting point between approximately 10° C. and approximately 40° C. claim 1 , preferably close to ambient temperature.4. Method according to claim 1 , in which the industrial lignin is chosen from the group constituted by Kraft lignin claim 1 , lignosulfonates claim 1 , organosols lignins and lignins originating from biorefineries.5. Method according to claim 1 , in which the external dispersion phase comprises claim 1 , moreover claim 1 , at least one hemicellulose monomer.6. Method according to claim 1 , in which the solution comprising at least one polymerizable monomer contained in industrial lignin is a cooking liquor claim 1 , preferably the black liquor.7. Method according to in which said black liquor comprises from approximately 20% to approximately 80% by mass of dry matter claim 6 , preferably from approximately 40% to approximately 60% by mass of dry matter.8. Method according to claim 1 , in which said external dispersion phase comprises moreover a cross- ...

METHODS FOR PREPARING A LIGNIN DISPERSION AND A RESIN FROM THE LIGNIN DISPERSION

The present invention relates to an improved process for preparing an aqueous dispersion of lignin and the use of said suspension in the preparation of a resin. 1. A method for preparing a lignin dispersion comprising the steps ofa) providing an aqueous medium having a pH of 1 to 7;b) adding lignin to the aqueous medium;c) mixing until a dispersion of lignin in the aqueous medium has been obtained.2. A method for preparing a resin comprising the steps ofa) providing an aqueous medium having a pH of 1 to 7;b) adding lignin to the aqueous medium;c) mixing until a dispersion of lignin in the aqueous medium has been obtained;d) adding alkali, phenol and/or formaldehyde to the aqueous medium ande) maintaining the mixture at a temperature of from 30° C. to 95° C. for at least 30 minutes.3. A method according to claim 1 , wherein steps a) claim 1 , b) and c) are carried out without actively heating the aqueous medium.4. A method according to claim 1 , wherein the amount of lignin in the dispersion in step c) is 5-60 wt %.5. A method according to claim 4 , wherein the amount of lignin in the dispersion in step c) is 35-60 wt %.6. A method according to claim 1 , wherein the pH of the aqueous medium in step a) is pH 2 to 5.7. A dispersion obtainable by the method of .8. A resin obtainable by the method of .9. Laminate claim 8 , engineered wood product or insulation product manufactured using a resin according to .10. A method according to claim 2 , wherein steps a) claim 2 , b) and c) are carried out without actively heating the aqueous medium.11. A method according to claim 2 , wherein the amount of lignin in the dispersion in step c) is 5-60 wt %.12. A method according to claim 2 , wherein the pH of the aqueous medium in step a) is pH 2 to 5. The present invention relates to an improved process for preparing an aqueous dispersion of lignin and the use of said dispersion in the preparation of a resin.The lignin dispersion prepared according to the process of the present ...

NATURAL FIBRE AND METHOD OF PRODUCTION AND USE IN MODULAR CONSTRUCTION

The present invention provides a method of producing reinforced composite containing fibre in a polymer matrix comprising the steps of: a. heating and drying a natural fibre-containing material in a hot blending chamber; b. sieving the dried natural fibre-containing material to produce a loose, soft and clean natural fibre free of contaminants and unwanted elements; c. shredding the fibre; d. pre-heating the shredded fibre; e. blending polymer, a nitrogen blowing agent a lubricant with the shredded fibre and optionally a coupling agent; and f. heating the blended mixture to the melting point of the polymer. Also provided is a composite produced by the method and a composite comprising a natural fibre-containing material, a polymer, a nitrogen blowing agent, a lubricant and optionally a coupling agent. Various modular constructions and a weighing assembly made from the composite are also provided. 1. A method of producing reinforced composite containing fibre in a polymer matrix comprising the steps of:a. heating and drying a natural fibre-containing material in a hot blending chamber;b. sieving the dried natural fibre-containing material to produce a loose, soft and clean natural fibre free of contaminants and unwanted elements;c. shredding the fibre;d. pre-heating the shredded fibre;e. blending polymer, a nitrogen blowing agent and a lubricant with the shredded fibre; andf. heating the blended mixture to the melting point of the polymer.2. A method according to claim 1 , wherein a coupling agent is also added at step e.3. A method according to claim 1 , wherein the natural fibre containing material comprises rice husk fibre.4. (canceled)5. A method according to claim 1 , wherein the nitrogen blowing agent is azodicarbonamide.6. A method according to claim 1 , wherein the blending step is carried out at a specific gravity at or below 1.1.7. A method according to claim 1 , further comprising the step of cooling the blended mixture to provide a dry blend.8. A method ...

PROCESS FOR PREPARING A BONDING RESIN

The present invention relates to a process for preparing a bonding resin, wherein a resin prepared from lignin, phenol and formaldehyde and comprising a formaldehyde scavenger, is mixed with a resin prepared from phenol and formaldehyde and comprising a formaldehyde scavenger to achieve a mixture useful as a bonding resin useful in the manufacture of oriented strand board (OSB). 1. A method for preparing a resin in a form of a mixture comprising the steps of:a) preparing a first resin comprising lignin, phenol, formaldehyde, and a formaldehyde scavenger;b) preparing a second resin comprising phenol, formaldehyde, and a formaldehyde scavenger, wherein the second resin comprises less than 1 wt-% lignin, by weight of the second resin;c) mixing the first resin and the second resin in a weight ratio of from 0.5:10 to 10:0.5 based on weight of a mixture of the first resin and the second resin.2. The method according to claim 1 , wherein the mixing in step c) is carried out by stirring at a speed from 20 to 1000 rpm.3. The method according to claim 1 , wherein a duration of the mixing in step at least one minute.4. The method according to claim 1 , wherein the formaldehyde scavenger is urea.5. A resin in the form of the mixture obtained by the method of .6. The method of further comprising: manufacturing an oriented strand board with the mixture of the first resin and the second resin.7. An oriented strand board manufactured using the resin according to .8. A method for selecting an optimized resin mixture for a specific end use claim 5 , the method comprising the steps of:a) defining one or more desirable properties of a resin;b) preparing a first resin comprising lignin, phenol, formaldehyde, and a formaldehyde scavenger;c) preparing a second resin comprising phenol, formaldehyde, and a formaldehyde scavenger, wherein the second resin comprises less than 1 wt-% lignin, by weight of the second resin;d) mixing the first resin and the second resin in a defined weight ratio ...

PROCESS FOR PRODUCING LIGNIN PARTICLES

Described is a process for producing lignin particles in the context of a continuous process, including a particle-free lignin-containing solution and a precipitation agent are combined in a mixing apparatus and subsequently passed out of the mixing apparatus again, wherein a mixing efficiency of the lignin-containing solution with the precipitation agent of at least 90% and a precipitation of lignin particles are achieved to form a suspension of lignin particles, and the residence time in the mixing apparatus does not exceed a duration of 30 seconds. 1. A process for producing lignin particles in the context of a continuous process , comprising: a particle-free lignin-containing solution and a precipitation agent are combined in a mixer and then discharged from the mixer again; a mixing quality of the lignin-containing solution with the precipitation agent of at least 90% and a precipitation of lignin particles being achieved , resulting in a suspension of lignin particles; andthe residence time in the mixer does not exceed a period of 5 seconds.2. A process for producing lignin particles in the context of a continuous process , comprising: a particle-free lignin-containing solution and a precipitation agent are combined in a mixing device and are subsequently discharged from the mixing device again , a mixing quality of the lignin-containing solution with the precipitation agent of at least 90% and a precipitation of lignin particles being achieved , resulting a suspension of lignin particles; the mixing device comprising at least one mixer and the line leading out thereof with a diameter of 10 mm or less , andthe residence time in the mixing device does not exceed a period of 30 seconds.3. The process according to claim 1 , characterised in that the residence time in the mixer does not exceed a period of 4 seconds claim 1 , preferably 3 seconds claim 1 , even more preferably 2 seconds claim 1 , in particular 1 second.4. The process according to claim 2 , ...

RADIATION-CURABLE COMPOUNDS CONTAINING POLYESTER ACRYLATE

Radiation-curable, polyester acrylate-containing compositions (I) obtainable by reacting 0.5 to 20 mol % of a polyester polyol (A) and 0.5 to 30 mol % of a polyester diol (B) with 1 to 10 mol % of phthalic anhydride (C) and 65 to 75 mol % of (meth)acrylic acid (D) in the presence of an acidic esterification catalyst, a hydrocarbon (L), and a polymerization inhibitor. Reaction temperatures range from 60 to 140° C. The hydrocarbon (L) functions as solvent, forms an azeotropic mixture with water, and is removed distillatively after esterification. Water formed in the reaction is removed azeotropically. After neutralization of the esterification catalyst, free (meth)acrylic acid is reacted with an epoxide compound (E) in an amount equivalent to the acid number of the reaction mixture. The compound (E) has at least two epoxide groups per molecule. The compositions are suitable for coating the surfaces of solid substrates. 2. A radiation-curable composition (II) comprising 60 to 100 wt % of a polyester acrylate-containing composition (I) according to and 0 to 40 wt % of dipropylene glycol di-acrylate (F)—wt % based in each case on the overall radiation-curable composition (II).3. A coating compound comprising one or more than one composition (I) according to .4. A coating compound comprising one or more than one composition (II) according to .510-. (canceled)11. A method of coating solid substrates claim 1 , the method comprising the use of a composition (I) according to .12. The method according to claim 11 , wherein the solid substrates comprise PVC.13. The method according to claim 11 , wherein the solid substrates comprise cork.14. A method of coating solid substrates claim 2 , the method comprising the use of a composition (II) according to .15. The method according to claim 14 , wherein the solid substrates comprise PVC.16. The method according to claim 14 , wherein the solid substrates comprise cork. The present invention concerns polyester acrylate-containing ...

LIGNIN COMPOSITIONS

Disclosed herein are lignin-furfuryl alcohol compositions, lignin-furfuryl alcohol-resole (LFR) compositions comprising lignin-furfuryl alcohol composition and phenolic resoles and LFR foams derived from such LFR compositions. Disclosed herein are LFR foams comprising a polymeric phase defining a plurality of open cells and a plurality of closed cells, and a gas phase comprising one or more blowing agents disposed in at least a portion of the plurality of closed cells, wherein the polymeric phase is derived from LFR compositions. 1. A lignin-furfuryl alcohol-resole (LFR) composition comprising:(i) 10-90 wt % of a lignin-furfuryl alcohol composition derived from a lignin, water, and one or more lignin reactive monomers, wherein at least one of the one or more lignin reactive monomers is furfuryl alcohol;(ii) 10-90 wt % of a phenolic-resole derived from a phenol and a phenol-reactive monomer; and(iii) optionally 0.1-10 wt % of an organic amine comprising urea, melamine, hexamine, or mixtures thereof, wherein the amounts in wt % are based on the total weight of the LFR composition.2. The LFR composition of claim 1 , wherein the phenol-reactive monomer comprises at least one of formaldehyde claim 1 , paraformaldehyde claim 1 , furfuryl alcohol claim 1 , furfural claim 1 , glyoxal claim 1 , acetaldehyde claim 1 , 5-hydroxymethylfurfural claim 1 , levulinate esters claim 1 , sugars claim 1 , 2 claim 1 ,5-furandicarboxylic aldehyde claim 1 , difurfural (DFF) claim 1 , sorbitol claim 1 , or mixtures thereof.3. The LFR composition of claim 1 , wherein the phenol-reactive monomer is formaldehyde.4. The LFR composition of claim 1 , further comprising at least one of an organic anhydride claim 1 , a surfactant claim 1 , and a plasticizer.5. A thermoset polymer derived from the LFR composition of .6. A thermoset polymer derived from the LFR composition of and at least one of urea-formaldehyde resin claim 1 , melamine-formaldehyde resin and resorcinol-formaldehyde resin.7. A ...

Method for Depolymerising Oxygenated Polymer Materials

The present invention concerns a method for depolymerizing oxygenated polymer materials and the use of said method in the recycling of plastic materials and the preparation of aromatic compounds that can be used as fuel, synthesis intermediates and raw materials in the construction sectors and in the petrochemical, electrical, electronic, textile, aeronautical, pharmaceutical, cosmetics and agrochemical industries. The present invention also concerns the use of aromatic compounds obtained by the method for depolymerizing oxygenated polymer materials according to the invention, in the production of fuels, electronic components, plastic polymers, rubber, drugs, vitamins, cosmetic products, perfumes, food products, synthetic threads and fibres, synthetic leathers, glues, pesticides and fertilizers. 2. The process as claimed in claim 1 , characterized in that the oxygenated polymers are chosen fromsaturated or unsaturated polyesters chosen from polyglycolic acid (PGA), polylactic acid (PLA), polycaprolactone (PCL), polyhydroxyalkanoate (PHA), polyhydroxybutyrate (P3HB), polyhydroxyvalerate (PHV), polyethylene adipate (PEA), polybutylene succinate (PBS), poly(3-hydroxybutyrate-co-3-hydroxyvalerate (PHBV), polyethylene terephthalate (PET), polybutylene terephthalate (PBT), polytrimethylene terephthalate (PTT), polyethylene naphthalate (PEN),polycarbonates chosen from PC-BPA, polypropylene carbonate (PPC), polyethylene carbonate (PEC), poly(hexamethylene carbonate), allyl diglycol carbonate (ADC) or CR-39,hydrolyzable tannins, especially gallotannins and ellagitannins, and suberin.3. The process as claimed in claim 1 , characterized in that the oxygenated polymers are chosen fromPET and PLA;PC-BPA;gallotannins and ellagitannins, and suberin.5. The process as claimed in claim 4 , characterized in that the organic catalyst is chosen from triphenylcarbenium tetrakis(perfluorophenyl)borate [(Ph)CB(CF)].7. The process as claimed in claim 6 , characterized in that the ...

SELF-EXPANDING LIGNOFOAM COMPOSITIONS AND LIGNOFOAMS MADE THEREFROM

Methods of making self-expended lignofoams are provided. In embodiments, such a method comprises exposing a self-expanding lignofoam composition comprising raw lignin and a thermoplastic polymer to an elevated temperature for a period of time to soften the composition, desorb water from the raw lignin or induce at least some hydroxyl groups of the raw lignin to undergo dehydration reactions to generate water or both, vaporize the water, and generate pores throughout the softened composition. The method further comprises cooling the porous, softened composition to room temperature to provide the self-expanded lignofoam. The self-expanding lignofoam composition is free of an added plasticizer, an added lubricant, an added foaming agent, and an added blowing agent, and the thermoplastic polymer is not a starch, not a polyurethane, and not a polysiloxane. The resulting self-expanded lignofoams are also provided. 1. A method of making a self-expanded lignofoam , the method comprising:exposing self-expending lignofoam composition comprising raw lignin and a thermoplastic polymer tot elevated temperature for a period of time to soften the composition, desorb water from the taw lignin or induce at least some hydroxyl groups of die raw lignin to undergo dehydration reactions to generate water or both, vaporize the water, and generate pores throughout the softened composition,wherein the self-expanding lignofoam composition is free of an added plasticizer, an added lubricant, an added foaming agent, and an added blowing agent, and the thermoplastic polymer is not a starch, not a polyurethane, and not a polysiloxane; andcooling the porous, softened composition to room temperature to provide the self-expanded lignofoam.2. The method of claim 1 , wherein the self-expanding lignofoam composition has a lignin content of at least 50 wt %.3. The method of claim 1 , wherein the self-expanding lignofoam composition has a lignin content composed entirely of the raw lignin.4. The method ...

EXTRUDED STARCH-LIGNIN FOAMS

Extruded starch foams are well known as biodegradable alternatives to foamed polystyrene packaging materials. Extruded foams of unmodified starch replacing 1% to 20% of the starch with kraft lignin were prepared. At 10% lignin, there are no deleterious effects on foam density, morphology, compressive strength, or resiliency as compared to a starch extruded foam, yet the foam retains its integrity after immersion for 24 hours in water. At 20% lignin there is a decrease in compressive strength and resiliency. Addition of cellulose fibers restore the mechanical properties but with an increase in density. 1. An expanded cellular structure , comprising a mixture of starch comprising amylose and amylopectin , and lignin , the lignin being present in a weight ratio of between 80:20 to 99:1 of the starch , the expanded cellular structure having a uniform distribution of cells throughout.2. The expanded cellular structure according to claim 1 , wherein the starch comprises approximately 70% by weight amylose.3. The expanded cellular structure according to claim 1 , produced by a process comprising extruding the mixture of starch and lignin under heat and pressure.4. The expanded cellular structure according to claim 1 , having a unit density of 31-65 kg/m.5. The expanded cellular structure according to claim 1 , wherein the expanded cellular structure has a density of less than 39 kg/m.6. The expanded cellular structure according to claim 1 , wherein the expanded cellular structure has a resiliency of 38-72%.7. The expanded cellular structure according to claim 1 , having a compressive strength of at least 0.10 MPa.8. The expanded cellular structure according to claim 7 , wherein the expanded cellular structure has a compressive strength of 0.10 to 0.18 MPa.9. The expanded cellular structure according to claim 1 , wherein the mixture comprises 1-10% by weight lignin claim 1 , and the expanded cellular structure has a unit density of less than about 39 kg/m claim 1 , a ...

A METHOD FOR INCREASING THE REACITIVITY OF LIGNIN, AND A RESIN COMPOSITION COMPRISING SAID LIGNIN

The present invention relates to a method for increasing the reactivity of lignin which method comprises the following steps; providing a mixture comprising lignin and an alkali solution wherein the concentration of the alkali solution of the mixture is between 5-50% by weight, storing said mixture for a period of at least 1 day whereby the reactivity of the lignin is increased. The present invention also relates to a resin composition comprising said lignin and use of said resin composition. 1. Method for increasing the reactivity of lignin which method comprises the following steps:providing a mixture comprising lignin and an alkali solution wherein the concentration of the alkali solution of the mixture is between 5-50% by weight,storing said mixture for a period of at least 1 day whereby the reactivity of the lignin is increased.2. The method according to wherein the lignin is stored for a period of 1 day-12 weeks.3. The method according to wherein the storage is done at room temperature that is between 20-30° C.4. The method according to wherein the lignin is dissolved in the alkali solution.5. The method according to wherein the mixture comprises 10-80% by weight of lignin.6. The method according to wherein the alkali comprises at least one of sodium hydroxide claim 1 , potassium hydroxide claim 1 , calcium hydroxide and magnesium hydroxide.7. The method according to wherein the method comprises the step of separating the lignin from the mixture after storage.8. A resin composition comprising lignin treated according to the method according to .9. The resin composition according to wherein the resin is a lignin-phenol-formaldehyde resin.10. (canceled)11. The method according to wherein the mixture comprises 25-50% by weight of lignin. The present invention relates to a method for increasing the reactivity of lignin, a resin composition comprising said lignin and use of said resin composition.Lignin, an aromatic polymer is a major constituent in e.g. wood, ...

PROCESS FOR MAKING LIGNIN COMPOSITION

The invention relates to a process for making a purified lignin composition comprising a carrier liquid suitable for processing in a refinery. It comprises providing an aqueous lignin composition comprising lignin, cooking chemicals and water and adding a carrier liquid to the aqueous lignin to provide an organic phase. Then all or substantially all the water is removed from the composition. The lignin composition is processed to make the lignin more soluble in the carrier liquid in order to transfer more of the lignin to the organic phase. Cooking chemicals are removed, suitably by of washing by liquid/liquid extraction using a washing liquid. Finally washing liquid is removed. 1. Process for making a purified lignin composition comprising a carrier liquid suitable for processing in a refinery , comprisingproviding an aqueous lignin composition comprising lignin, cooking chemicals and water;adding a carrier liquid to the aqueous lignin to provide an organic phase,removing all or substantially all the water from the composition, preferably at least 90%, more preferred more than 95% of the water, even more preferred more than 99% of the water, suitably by any of heating, evaporation, osmosis, membrane filtration;processing said lignin composition to make the lignin more soluble in the carrier liquid in order to transfer more of the lignin to the organic phase,optionally removing cooking chemicals that have precipitated by physical separation,removing cooking chemicals comprises a step of washing by liquid/liquid extraction using a washing liquid; andremoving washing liquid.2. Process according to claim 1 , wherein the washing liquid is water.3. Process according to claim 1 , wherein the physical separation of any precipitated cooking chemicals before the washing step is performed by sieving claim 1 , filtration or centrifugation.4. Process according to claim 1 , wherein a carrier liquid claim 1 , e.g. an oil claim 1 , is added under mixing to enable an improved ...

用于提高木质素的反应性的方法，包括所述木质素的树脂组合物和所述树脂组合物的用途

本发明涉及用于提高木质素的反应性的方法，所述方法包括以下步骤；提供包括木质素和碱溶液的混合物，其中所述混合物的碱溶液的浓度为5‑50重量％，将所述混合物储存至少一天的时间，由此提高木质素的反应性。本发明还涉及包括所述木质素的树脂组合物和所述树脂组合物的用途。

一种纳米纤维素诱导二氧化钛复合紫外屏蔽材料制备方法

本发明公开了一种纳米纤维素诱导二氧化钛复合紫外屏蔽材料制备方法，按以下步骤进行：按质量份将0.1‑1份的木质素磺酸钠加入到5‑15份质量浓度为0.5‑1.5％的纳米纤维素悬浮液中搅拌，然后加入20‑30份无水乙醇快速搅拌3‑8分钟，再升温至70‑90℃，保持搅拌25‑35分钟，得到纳米纤维素模版诱导反应剂；再向其中加入3‑8份钛酸丁酯，滴加过程全程搅拌，滴加后继续搅拌15‑25分钟，形成二氧化钛前驱体与模版诱导反应剂的混合液；向上述混合液中再缓慢滴加入1‑5份质量浓度为15‑25％的硫酸溶液，诱导木质素析出形成木质素包覆的悬浮液，最后将木质素包覆的悬浮液转移至反应釜中反应，得到成品。本发明制备的紫外屏蔽材料不容易团聚、与各类有机溶剂相容性好，具有优秀的抗紫外线能力。

Lignin/surfactant composite nano particle and preparation method thereof

本发明属于纳米材料技术领域，公开了一种在水中分散良好的木质素/表面活性剂复合纳米粒子及其制备方法。本发明方法包括以下步骤：(1)将100质量份木质素分散于碱液中，调节体系pH为9～12，加入10～25质量份环氧氯丙烷，80～95℃下交联反应1～3h，得到高分子量木质素；(2)把高分子量木质素、碱、表面活性剂加入水中，得到pH为9～12的混合溶液；(3)往上述混合溶液中加入酸至溶液的pH值为4～6，搅拌，得到木质素/表面活性剂复合纳米粒子的水分散液。本发明制备得到具有优异水分散性能的木质素/表面活性剂复合纳米粒子，其流体力学半径为40～500nm，可以非常稳定地分散在水中，且易于与其他组分混合。

A kind of mixture formic acid of environmental protection and the method for calcium lignosulfonate

本发明公开了一种环保的混配甲酸和木质素磺酸钙的方法，该方法包括以下步骤：S1、把甲酸和木质素磺酸钙分别放到固定板上的储料罐内；S2、控制加入定量的甲酸和木质素磺酸钙，并加热；S3、使反应器皿转动对其内部的原料进行混合翻转；S4、待混合完成之后打开抽风机把反应罐内的刺激性或者有害气体抽入排气管，气体经过填充活性炭的滤网吸附有害气体之后把过滤后的气体排到空气中；S5、获得混合均匀的甲酸和木质素磺酸钙混合溶液。该发明能够使甲酸和木质素磺酸钙混配均匀，并消除其混配过程中对环境的污染，操作方便，混配效果好，精确度高，安全稳定，提供工作效率。

Self-expanding lignin foam compositions and lignin foams made therefrom

提供了制备已自膨胀的木素泡沫的方法。在实施方案中，这种方法包括将包含未加工木质素和热塑性聚合物的自膨胀型木素泡沫组合物暴露于高温一段时间以软化该组合物，从该未加工木质素中解吸水或诱导该未加工木质素的至少一些羟基经历脱水反应以产生水或进行这两者，蒸发水，并在整个软化的组合物中产生孔。该方法进一步包括将该多孔、软化的组合物冷却至室温以提供已自膨胀的木素泡沫。所述自膨胀型木素泡沫组合物不含添加的增塑剂、添加的润滑剂、添加的发泡剂和添加的发泡剂，并且所述热塑性聚合物不是淀粉、不是聚氨酯且不是聚硅氧烷。还提供了所得的已自膨胀的木素泡沫。

A kind of high-strength fire-retarding wood plastic composite and preparation method thereof

本发明公开了一种高强阻燃木塑复合材料，包括聚丙烯20‑50份、改性木质素40‑70份、长波纤有机母粒5‑10份及相容剂0.1‑1份，长波纤有机母粒由长玻纤、氯化石蜡、丙烯酸丁酯、硅烷偶联剂作为主要成分制备而成。还公开了复合材料的制备方法。本发明通过溴代烷对碱性木质素进行改性，在木质素表面官能团接枝有机烷分子链，有效提高木质素与聚丙烯相容性，同时在木质素表面包覆膨胀型无卤阻燃剂和有机高分子膜，能够进一步提高木质素与聚丙烯的界面相容性和阻燃性，提高木质素填充料，有效降低产品成本；长玻纤有机母粒的加入，有效提高了复合材料的力学强度，有效避免因木质素大量加入所导致家具料力学性能大幅度降低等问题。

Lignin gell electrolyte, method of the lignin gell electrolyte, and energy storing apparatus including the lignin gell electrolyte

리그닌 겔 전해질이 개시된다. 리그닌 겔 전해질은 리그닌 분자들 및 상기 리그닌 분자들을 가교시키는 가교제를 포함하는 리그닌 중합체 네트워크 및 상기 리그닌 중합체 네트워크 내부에 수용된 액상 전해질을 구비하여, 높은 이온 전도도 특성을 갖고 우수한 기계적 안정성을 유지할 수 있다. Lignin gel electrolytes are disclosed. The lignin gel electrolyte has a lignin polymer network including lignin molecules and a crosslinking agent for crosslinking the lignin molecules, and a liquid electrolyte accommodated inside the lignin polymer network, and has high ionic conductivity properties and can maintain excellent mechanical stability.

Extruded starch-lignin foams

Extruded starch foams are well known as biodegradable alternatives to foamed polystyrene packaging materials. Extruded foams of unmodified starch replacing 1% to 20% of the starch with kraft lignin were prepared. At 10% lignin, there are no deleterious effects on foam density, morphology, compressive strength, or resiliency as compared to a starch extruded foam, yet the foam retains its integrity after immersion for 24 hours in water. At 20% lignin there is a decrease in compressive strength and resiliency. Addition of cellulose fibers restore the mechanical properties but with an increase in density.

A kind of aerogel material constructed by fiber and adhesive and its preparation method and application

本发明涉及一种由纤维和粘合剂构筑的气凝胶材料及其制备方法和应用，所述方法包括如下步骤：将粘合剂和/或粘合剂前驱体溶解在溶剂中，形成溶液；将纤维分散但不溶解于所述溶液中形成悬浊液；将所述悬浊液进行凝固处理，悬浊液成为凝固体后，纤维和粘合剂或粘合剂前驱体被固定成为三维连续网状结构；脱除凝固体中凝固的溶剂，由空气替代溶剂并保持纤维原有的空间结构。本发明的所述气凝胶材料具有优异的力学性能，在保温隔热、吸音、环境治理、清洁能源、电子信息及生物医学等领域都具有广泛的应用前景。

Derivatives of native lignin from softwood feedstocks

Resin composition and resin molded body

Humic acid type bird-repelling pheromone core-shell structure gel and preparation method thereof

本发明提供一种腐植酸型驱鸟信息素核壳结构凝胶及其制备方法，以质量份数计，原料包括：10～15份腐植酸盐、9～10份纤维素、6～8份亲水单体、1～4份驱鸟信息素、2～6份乳化剂、0.4～0.8份引发剂和0.1～0.2份交联剂。将腐植酸盐、纤维素溶于水，加入亲水单体、驱鸟信息素、引发剂和交联剂，进行交联反应，在搅拌条件下加入乳化剂进行乳化反应得到油包水型核壳结构驱鸟凝胶。本发明缓解化学农药使用对环境的危害，使其驱鸟成分缓慢持久地释放，达到驱鸟目的。

Poly (propylene carbonate)/agriculture and forestry biomass composite material, preparation method and application

本发明涉及农林生物质增强的可降解的聚合物复合材料及其制备方法、用途。该复合材料采用含有木质素、纤维素、半纤维素的农林生物质作原料，以可降解材料聚碳酸亚丙酯为基体，农林生物质原料经历汽爆/不汽爆后，与基体聚碳酸亚丙酯原料在发泡剂、偶联剂、填料存在/不存在的条件下，熔融共混制得多孔材料、普通发泡材料、双孔发泡材料、装饰材料。本发明工艺简单，适用范围广，材料具有较好的尺寸稳定性、表面光滑细腻均匀，由于农林生物质和基体原料都是可以降解的材料，所制备的复合材料可以自然降解。

A method for increasing the reactivity of lignin by storage

Abstract The present invention relates to a method for increasing the reactivity of Iigninwhich method comprises the following steps; providing a mixture comprising Iigninand an alkali solution and storing said mixture for a period of at least 1 day wherebythe reactivity of the Iignin is increased. The present invention also relates to a resincomposition comprising said Iignin and use of said resin composition.

Efficient pretreatment process for full-component utilization of corn straws

本发明公开了一种玉米秸秆全组分利用的高效预处理工艺，所述制备方法包括如下步骤：采用有机强酸溶剂对玉米秸秆进行预处理，将预处理液进行重复利用4次，预处理后的固体残渣进行高底物浓度纤维素酶水解糖化，重复利用4次后的预处理液进行稀释沉降，稀释沉降的同时进行机械搅拌，得到的固体沉淀为高性能的木质素纳米微球，沉淀后的上清液富含半纤维素降解的单糖，直接加热将单糖转化为平台化合物乙酰丙酸。本发明可充分利用玉米秸秆中的纤维素、半纤维素和木质素，纤维素可用来制备可发酵的葡萄糖，木质素降解物可用来制备木质素纳米微球，半纤维素降解的单糖，经加热后可转化为重要的平台化合物乙酰丙酸，乙酰丙酸的得率为57％，通过萃取后可回收废对甲苯磺酸溶剂，实现废物的零排放。

Lipophillically dispersed phenolic polymer particles

A composition comprises phenolic polymer particles and a surfactant, on the phenolic polymer particles. The composition is lipophilic. A dispersion comprises the phenolic polymer particles, the surfactant, and a carrier vehicle. The carrier vehicle may be a cosmetically-acceptable fluid or a wax that is lipophilic.

Cereal-Based Adhesives and Their Uses

This invention provides methods of preparing a cereal-based adhesives. The methods comprise adjusting the pH of a cereal bran slurry to a pH of at least about 8 and heating the cereal bran slurry to at least about 80° C. The cereal bran slurry typically comprises about 20% solids and can be ground to a desired particle size. The method may further comprise drying the slurry to produce a dry powder, which can be reconstituted to produce an adhesive of the invention.

Derivatives of native lignin

A method for increasing the reactivity of lignin, a resin composition comprising said lignin and use of said resin composition

The present invention relates to a method for increasing the reactivity of lignin which method comprises the following steps; providing a mixture comprising lignin and an alkali solution wherein the concentration of the alkali solution of the mixture is between 5-50% by weight, storing said mixture for a period of at least 1day whereby the reactivity of the lignin is increased. The present invention also relates to a resin composition comprising said lignin and use of said resin composition.

Derivatives of native lignin from softwood feedstocks

The present invention provides softwood derivatives of native lignin having an aliphatic hydroxyl content of from about 2.5 mmol/g to about 7 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.

native lignin derivatives of annual plant fiber raw materials

Pickering emulsion and preparation method and application thereof

本发明公开了一种Pickering乳液及其制备方法和应用。本发明的Pickering乳液由以下质量份的原料制备而成：烷烃桥联木质素基聚合物：0.1～5份；疏水性有机溶剂：80～120份；水：100份；所述烷烃桥联木质素基聚合物由木质素磺酸盐和多卤代烷烃桥联聚合得到或者由磺甲基化木质素和多卤代烷烃桥联聚合得到。本发明的Pickering乳液的制备方法包括以下步骤：将烷烃桥联木质素基聚合物分散在水中，得到木质素基纳米粒子分散液，再加入疏水性有机溶剂，进行乳化。本发明采用烷烃桥联木质素基聚合物作为水相的固体粒子，不需要进行碱溶、酸析，也不需要加入无机氧化物或有机交联剂，直接与油相混合乳化，一步便可以制备稳定的Pickering乳液，简单方便。

Lignin rare earth composite luminescent material and preparation and application thereof

本发明涉及水凝胶复合材料技术领域，公开了一种木质素稀土复合发光材料及其制备与应用。该复合发光材料为CNF/SL/Eu/TTA，TTA和Eu形成的稀土配合物以共价键方式与CNF和SL形成的三维网络结构相连；其中，所述CNF为纤维素纳米纤维，SL为木质素磺酸钠，Eu为稀土铕离子，TTA为2‑噻吩甲酰三氟丙酮去质子后的钠盐。纤维素纳米纤维通乙烯砜交联与木质素磺酸钠结合。稀土铕离子与木质素磺酸钠的磺酸基官能团配位，从而以共价键方式与水凝胶网络骨架稳定相连，TTA随后利用β‑二酮官能团与稀土铕离子进一步配位，得到优异的红色荧光水凝胶材料，分解温度为285℃，可以作为一种新型的荧光材料。采用乙烯砜交联的方法制备，简单易行，材料形态可自由设计，适用面广。

Façade system and insulation element for a façade system

The invention relates to façade system for a building, in particular an External Thermal Insulation Composite System (ETICS), comprising a thermal and/or acoustic insulation, consisting of at least one insulation element being a bonded mineral fibre product made of mineral fibres, preferably stone wool fibres, and a cured aqueous binder composition, whereby the insulation element is fixed to an outer surface of the building by mechanical fastening elements and/or an adhesive, covered with a rendering, and whereby the aqueous binder composition prior to curing comprises a component (i) in form of one or more oxidized lignins, a component (ii) in form of one or more cross-linkers, a component (iii) in form of one or more plasticizers, and whereby the insulation element has a bulk density between 70 kg/m 3 and 150 kg/m 3 .

Preparation method and application of biomass lignin nanoshell

本发明涉及一种生物质木质素纳米球壳的制备方法及应用。本发明的制备方法，包括如下步骤：(1)将木质纤维素原料与酸性溴化锂溶液混合后，加热反应；反应结束后经固液分离，得到预处理液和固体沉淀，将固体沉淀洗净干燥后得到木质素原料；(2)将步骤(1)得到的木质素原料分散于四氢呋喃中，得分散液，超声溶解木质素，过滤收集溶解液，采用四氢呋喃稀释后，经透析处理以去除有机溶剂并使木质素聚合成球，得到生物质木质素纳米球壳。本发明采用两段处理方式，实现了木质纤维素原料的分级利用，得到的高值木质素原料用于制备木质素纳米球壳，分离出的预处理液中含有反应溶剂与纤维素、半纤维素水解糖，可以进行下一步反应转化。

Wood fiber-based film and preparation method and application thereof

本发明提供了一种木质纤维基薄膜及其制备方法和应用，该薄膜以木质纤维和木质素纳米管为原料制成混合物溶液，然后制基膜并对其进行交联改性，制得，其制备方法为向木质纤维原料中加入二甲基亚砜溶液，搅拌润胀，然后再加入四丁基氢氧化铵溶液，搅拌处理，得混合物溶液；向混合物溶液中加入木质素纳米管，继续搅拌处理后依次脱泡、制膜，得基膜；将基膜放入交联剂溶液中浸泡，然后洗涤、干燥，制得。该木质纤维基薄膜产品具有较好的力学性能，可取代现有的塑料薄膜，以解决现有的生物质薄膜材料存在的力学性能差，应用受限的问题。

Use of lignin as the main component for extruded and expanded biopolymer foam

Nach der Erfindung wird Lignin für die Herstellung eines Biopolymerschaums eingesetzt. According to the invention, lignin is used to produce a biopolymer foam.

Closed-cell tannin-based foams without formaldehyde

Disclosed are foam compositions and processes to form closed-cell tannin-based foams. The process comprises forming an agglomerate-free solution comprising a tannin, a monomer, and water, wherein the monomer comprises furfural, glyoxal, acetaldehyde, 5-hydroxymethylfurfural, acrolein, levulinate esters, sugars, 2,5-furandicarboxylic acid, 2,5-furandicarboxylic aldehyde, urea, difurfural (DFF), furfuryl alcohol, glycerol, sorbitol, lignin, or mixtures thereof. The process also comprises mixing one or more blowing agents with the agglomerate-free solution to form a pre-foam mixture and mixing an acid catalyst with the pre-foam mixture to form a foam composition. The process comprises adding a surfactant to at least one of the agglomerate-free solution, pre-foam mixture, or the foam composition. The process further comprises processing the foam composition to form a tannin-based foam.

Method for preparing nano lignin balls from corn straws

本发明涉及纳米材料领域，本发明为一种玉米秸秆制备纳米木质素球的方法，包括玉米秸秆预处理，纤维素分离，处理液的后处理，透析处理和静置等步骤；本发明木质素‑THF处理液不需要任何修饰和处理，直接稀释和透析可制备到木质素纳米球。本专利直接以玉米秸秆这种成本低、量大、分布广的生物质为底物，利用四氢呋喃处理和透析两步处理制备特定大小的木质素纳米球，其中四氢呋喃具有沸点低，容易回收利用，污染小的优点。本发明通过改变透析时间、温度可制备300‑955nm之间的特定大小的木质素纳米球，是一种绿色环保有望实现工业化的方法。

Derivatives of native lignin from annual fibre feedstocks

The present invention provides derivatives of native lignin having certain aliphatic hydroxyl content. Surprisingly, it has been found that consistent and predictable antioxidant activity may be provided by selecting for derivatives of native lignin having certain aliphatic hydroxyl content.

Binder composition on an oligoester basis, production thereof, and use thereof for binding organic or mineral fibres

La présente invention concerne une composition de liant thermodurcissable contenant de l'eau et un ester oligomérique hydrosoluble d'au moins un glucide choisi parmi les sucres réducteurs, les sucres non- réducteurs et les sucres hydrogénés, les sucres hydrogénés étant choisis dans le groupe constitué de l'érythritol, l'arabitol, le xylitol, le sorbitol, le mannitol, l'iditol, le maltitol, l'isomaltitol, le lactitol, le cellobitol, le palatinitol, le maltotritol et les produits d'hydrogénation d'hydrolysats d'amidon ou de matières ligno-cellulosiques, et d'au moins un acide polycarboxylique, la composition de liant ayant une teneur en matières solides comprise entre 50 % et 80 % en poids, l'ester oligomérique hydrosoluble représentant au moins 80 % en poids, de préférence au moins 90 % en poids, des matières solides de la composition de liant thermodurcissable, et la composition de liant thermodurcissable contenant moins de 10 % en poids, de préférence moins de 5 % en poids, rapporté à sa teneur en matières solides, de sorbitol libre. Elle concerne également un procédé d'utilisation d'une telle composition de liant pour la fabrication d'un produit à base de fibres minérales ou organiques liées par un liant organique insoluble.

Facade system and insulation element for a facade system

The invention relates to façade system for a building, in particular an External Thermal Insulation Composite System (ETICS), comprising a thermal and/or acoustic insulation, consisting of at least one insulation element being a bonded mineral fibre product made of mineral fibres, preferably stone wool fibres, and a cured aqueous binder composition, whereby the insulation element is fixed to an outer surface of the building by mechanical fastening elements and/or an adhesive, covered with a rendering, and whereby the aqueous binder composition prior to curing comprises a component (i) in form of one or more oxidized lignins, a component (ii) in form of one or more cross-linkers, a component (iii) in form of one or more plasticizers, and whereby the insulation element has a bulk density between 70 kg/m3 and 150 kg/m3.

Façade system and insulation element for a façade system

The disclosure relates to façade system for a building, in particular an External Thermal Insulation Composite System (ETICS), comprising a thermal and/or acoustic insulation, consisting of at least one insulation element being a bonded mineral fibre product made of mineral fibres, preferably stone wool fibres, and a cured aqueous binder composition, whereby the insulation element is fixed to an outer surface of the building by mechanical fastening elements and/or an adhesive, covered with a rendering, and whereby the aqueous binder composition prior to curing comprises a component (i) in form of one or more oxidized lignins, a component (ii) in form of one or more cross-linkers, a component (iii) in form of one or more plasticizers, and whereby the insulation element has a bulk density between 70 kg/m3 and 150 kg/m3.

Process for the production of a fiber-reinforced plastic material

A method for producing a fiber-reinforced plastic substance from a thermoplastic or thermoelastic natural polymer or polymer blend with at least one natural polymer and natural fibers, characterized in that the natural polymer is pre-mixed in a particle form with natural fibers, the pre-mixture is fed to an injection press for plasticizing and the plasticized mixture is transferred to a casting mould via an outflow, a casting-on device or the like.

Technique for manufacturing wooden promotor composition

本发明涉及用于制造适合于在炼油厂中加工的、包含载体液体的纯化的木质素组合物的工艺。该工艺包括提供包含木质素、蒸煮化学品和水的含水木质素组合物，以及将载体液体添加到含水木质素中以提供有机相。然后从组合物中去除全部或基本上全部的水。加工木质素组合物以使木质素更可溶于载体液体中以便将更多的木质素转移至有机相。适当地通过使用洗涤液体通过液体/液体提取来洗涤，去除蒸煮化学品。最后去除洗涤液体。

native lignin derivatives from softwood raw materials

"derivados de lignina nativa a partir de matérias-primas de madeiras moles". a presente invenção refere-se a derivados de lignína nativa a partir de madeiras moles, que têm um teor de hidroxila alifática entre cerca de 2,5 mmol/g a cerca de 7 mmol/g. surpreendentemente, descobriu-se que uma atividade antioxidante consistente e previsível pode ser obtida selecionando derivados de lignina nativa que têm um certo teor de hidroxila alifática. "Native lignin derivatives from softwood raw materials". The present invention relates to native lignin derivatives from softwoods, which have an aliphatic hydroxyl content between about 2.5 mmol / g to about 7 mmol / g. surprisingly, it has been found that consistent and predictable antioxidant activity can be obtained by selecting native lignin derivatives that have a certain aliphatic hydroxyl content.

Derivatives of native lignin from hardwood feedstocks

One aspect of the invention relates to hardwood lignin derivatives having an aliphatic hydroxyl content of from about 5.2 mmol/g to about 7 mmol/g lignin, and the preparation method thereof. The lignin derivatives have a desired antioxidant activity characterized by the normalized radical scavenging index (RSI). Another aspect of the invention relates to compositions comprising the hardwood lignin derivative. Another aspect of the invention relates to a use of the hardwood lignin derivatives comprising incorporating the hardwood lignin derivatives into polymer compositions.

Natural fibre and method of production and use in modular construction.

La presente invención proporciona un método para producir un material compuesto reforzado que contiene fibra en una matriz polimérica que comprende los pasos que consisten en: a. calentar y secar un material que contiene fibra natural en una cámara de combinación en caliente; b. tamizar el material que contiene fibra natural seco para producir una fibra natural suelta, suave y limpia que esté libre de contaminantes y elementos indeseados; c. desmenuzar la fibra; d. precalentar la fibra desmenuzada; e. combinar un polímero, un agente de soplado de nitrógeno, un lubricante con la fibra desmenuzada y opcionalmente un agente de acoplamiento; y f. calentar la mezcla combinada hasta el punto de fusión del polímero. También se proporciona un material compuesto que se produce por medio del método y un material compuesto que comprende un material que contiene fibra natural, un polímero, un agente de soplado de nitrógeno, un lubricante y opcionalmente un agente de acoplamiento. También se proporcionan varias construcciones modulares y un ensamblaje de ponderación hecho del material compuesto.

Poly (propylene carbonate)/agricultural-forestry biomass composite, Preparation method and use

本发明涉及农林生物质增强的可降解的聚合物复合材料及其制备方法、用途。该复合材料采用含有木质素、纤维素、半纤维素的农林生物质物作原料，以可降解材料聚碳酸亚丙酯为基体，农林生物质原料经历汽爆/不汽爆后，与基体聚碳酸亚丙酯原料在发泡剂、偶联剂、填料存在/不存在的条件下，熔融共混制得多孔材料、普通发泡材料、双孔发泡材料、装饰材料。本发明工艺简单，适用范围广，材料具有较好的尺寸稳定性、表面光滑细腻均匀，由于农林生物质和基体原料都是可以降解的材料，所制备的复合材料可以自然降解。

Lignin fiber aerogel and preparation method and application thereof

本发明提供一种木质素纤维气凝胶及其制备方法和应用，属于木质素纤维合成方法技术领域。该方法先使用低共熔溶剂溶解线形高分子，混合均匀后，继续溶解木质素，形成均匀的溶液作为电纺的待纺液；将待纺液采用电纺装置进行电纺，电纺装置下方采用水浴装置接收，得到木质纤维素混合物；最后将得到的木质纤维素混合物静置后处理得到木质素纤维气凝胶。本发明还提供上述制备方法得到的木质素纤维气凝胶。本发明还提供上述木质素纤维气凝胶在超级电容器的电极材料中的应用。该木质素纤维气凝胶经过预氧化和碳化后得到的木质素基碳纤维气凝胶具有高的相对比表面积和多孔性。

Patent RU2019136070A3

Self-adhesive lignin-based composite hydrogel and preparation method and application thereof

本发明公开了一种自黏附木质素基复合水凝胶材料及其制备方法和应用，所述方法包括：对纤维素酶解木质素进行碱性硝基苯预处理，得到木质素氧化降解产物；将木质素氧化降解产物进行脱甲基处理，得到脱甲基化木质素；之后进行氧化还原反应，得到木质素‑银纳米粒子溶液；将海藻酸钠、丙烯酰胺和木质素‑银纳米粒子溶液，在交联剂、光引发剂条件下发生反应，之后进行凝胶化处理，得到木质素基复合水凝胶；对木质素基复合水凝胶进行金属配位反应，得到所述的自黏附木质素基复合水凝胶；本发明所述的自黏附木质素基复合水凝胶材料具良好黏附能和拉伸性能，制备过程简单，为木质素基复合水凝胶在柔性可穿戴设备领域提供了有利的技术支持。

Method for depolymerizing lignin

Lignin dispersion composition and its use in stabilizing emulsions

A lignin dispersion composition comprising spherical lignin particles dispersed in an aqueous medium, wherein the spherical lignin particles have a size exclusively within a range of 100 nm to 5 microns. Also described herein is a method of producing the lignin dispersion, by: (i) dissolving lignin in an organic solvent substantially devoid of water yet miscible with water to result in a solution of the lignin in the organic solvent; and (ii) producing the lignin dispersion by dialyzing the solution of the lignin with water until substantially all of the organic solvent is replaced with water with simultaneous formation of spherical lignin particles dispersed in the water. Also described herein is a method for stabilizing an emulsion by intimately mixing the emulsion with the lignin dispersion. Also described herein is a hierarchical assembly of porous microparticles produced by mixing the lignin dispersion with an emulsion and an amphiphilic block copolymer.

High-strength sodium alginate/lignin flame-retardant aerogel and preparation method and application thereof

本发明公开了一种高强度海藻酸钠/木质素阻燃型气凝胶及其制备方法与应用。所述方法为：先将木质素溶解在弱碱溶液中，然后加入碳酸钙和海藻酸钠，搅拌均匀后，滴加钙离子调节剂溶液，倒入模具后静置以形成复合水凝胶，再将水凝胶冻干得到海藻酸钠/木质素复合气凝胶。本发明以工业木质素为原料，利用木质素具有高含碳量和刚性结构的特点，同时提高气凝胶的机械强度和阻燃性能。本发明制备的复合气凝胶具有低密度、低导热系数、高机械强度和高防火性能等特点，是一种可用于建筑、工业、运输等领域的优异的阻燃保温材料。

Flexible and solid-state supercapacitor and preparation method and application thereof

本发明属于超级电容器领域，公开了一种柔性、固态超级电容器及其制备方法和应用。该超级电容器包括正极、负极和介于两者中间的电解质，其中电解质为双网络木质素水凝胶，正负极均为导电电极。本发明中作为电解质的双网络木质素水凝胶不仅具有高机械强度性质，而且制备方法简单，原料成本低，可再生，绿色环保，并且具有高离子电导率，将其作为电解质组装超级电容器时，无需额外浸泡离子溶液，无需额外使用隔膜，有效降低超级电容器厚度和重量。得到的电容器比电容值高于目前水凝胶电解质类柔性超级电容器比电容值。另外其具有非常好的充放电循环稳定性、耐压缩性和耐弯曲性。

A kind of lignin with dual pH responses/inorganic oxide pickering emulsions and preparation method thereof

本发明属于乳液制备技术领域，公开了一种具有双重pH响应性的木质素/无机氧化物pickering乳液及其制备方法。本发明方法通过将碱木质素先与羧酸化试剂反应引入阴离子官能团，然后与阳离子化试剂反应引入阳离子官能团，得到两性木质素；调节体系带正电，加入无机氧化物，超声分散，得到木质素/无机氧化物的混合溶液；再加入油相，乳化得到木质素/无机氧化物pickering乳液。本发明制备得到的木质素/无机氧化物pickering乳液具有pH响应特性，其在中性条件下稳定，在弱酸或弱碱条件下破乳，可简单的通过调节pH控制乳液的乳化或破乳，即只需加入少量的酸或碱就能达到乳化或破乳的目的，减少了腐蚀性和盐的累积。

Closed-cell tannin-based foams without formaldehyde

Disclosed are foam compositions and processes to form closed-cell tannin-based foams. The foams comprises a continuous polymeric phase defining a plurality of cells, wherein the continuous polymeric phase comprises a tannin-based resin derived from a tannin and a monomer, wherein the monomer comprises furfural, glyoxal, acetaldehyde, 5-hydroxymethylfurfural, acrolein, levulinate esters, sugars, 2,5-furandicarboxylic acid, 2,5-furandicarboxylic aldehyde, urea, difurfural (DFF), furfuryl alcohol, glycerol, sorbitol, lignin, or mixtures thereof, and wherein the plurality of cells comprises a plurality of open-cells and a plurality of closed-cells with an open-cell content measured according to ASTM D6226-5, of less than 50%. The foam composition also comprises a discontinuous phase disposed in at least a portion of the plurality of closed-cells, the discontinuous phase comprising one or more blowing agents.

Methods for producing crosslinked flavonoid hydrogels

There is provided methods for producing a hydrogel comprising conjugates of a hydrogel forming agent and a flavonoid including a method for producing a hydrogel that is capable of adhesion of cells and which comprises enzymatically cross-linked conjugates of a hydrogel forming agent and a flavonoid. There is also provided a method for producing a hydrogel comprising conjugates of a hydrogel forming agent and a flavonoid without the addition of an exogenous peroxide or peroxidase or without the addition of an exogenous peroxide. Hydrogels produced by such methods and methods of using the hydrogels are also described herein.

PPC/agriculture and forestry biomass composite material, preparation method and application

本发明涉及农林生物质增强的可降解的聚合物复合材料及其制备方法、用途。该复合材料采用含有木质素、纤维素、半纤维素的农林生物质物作原料，以可降解材料聚碳酸亚丙酯为基体，农林生物质原料经历汽爆/不汽爆后，与基体聚碳酸亚丙酯原料在发泡剂、偶联剂、填料存在/不存在的条件下，熔融共混制得多孔材料、普通发泡材料、双孔发泡材料、装饰材料。本发明工艺简单，适用范围广，材料具有较好的尺寸稳定性、表面光滑细腻均匀，由于农林生物质和基体原料都是可以降解的材料，所制备的复合材料可以自然降解。

Hydrophobic lignin/cellulose aerogel oil-water separation material and preparation method and application thereof

本发明属于环保材料技术领域，具体公开了一种疏水木质素/纤维素气凝胶油水分离材料及其制备方法与应用。所述制备方法包括以下步骤：将木质素和纤维素加入到碱性溶液中得到木质素/纤维素混合溶液；再加入交联剂得到的木质素/纤维素复合水凝胶；溶剂交换、干燥得到弹性气凝胶，然后利用硅烷偶联剂用化学气相沉积法对弹性气凝胶疏水改性得到疏水木质素/纤维素气凝胶。本发明制备的疏水改性前后的木质素/纤维素气凝胶吸油材料具有高度多孔的网络结构，将制备的吸油材料置于油水混合物中，吸收倍率高达自身重量的10～25倍以上。吸油后可以用挤压的方式将油挤出，吸油材料得以再生，循环使用仍然有很高的吸油效率。

High performance lignin-acrylonitrile polymer blend materials

A polymer blend material comprising: (i) a lignin component having a weight-average molecular weight of up to 1,000,000 g/mol; and (ii) an acrylonitrile-containing copolymer rubber component comprising acrylonitrile units in combination with diene monomer units, and having an acrylonitrile content of at least 20 mol%; wherein said lignin component is present in an amount of at least 5 wt% and up to about 95 wt% by total weight of components (i) and (ii); and said polymer blend material possesses a tensile yield stress of at least 5 MPa, or a tensile stress of at least 5 MPa at 10% elongation, or a tensile stress of at least 5 MPa at 100% elongation. Methods for producing the polymer blend, molded forms thereof, and articles thereof, are also described.

Methods for preparing a lignin dispersion and a resin from the lignin dispersion

The present invention relates to an improved process for preparing an aqueous dispersion of lignin and the use of said suspension in the preparation of a resin.

Methods for forming lignin prepolymers and lignin resins

Methods of forming lignin prepolymers are provided. In an embodiment, such a method comprises adding an acid to an ozonized reaction mixture, the ozonized reaction mixture comprising ozonized lignin having a backbone, and aromatic monomers cleaved from a lignin, under conditions to react the cleaved aromatic monomers with the backbone of the ozonized lignin to form a lignin prepolymer. The methods may further comprise using the lignin prepolymer to form a lignin resin.

Derivatives of native lignin

The present invention provides derivatives of native lignin having a certain aliphatic hydroxyl content. 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.

Derivatives of native lignin from softwood feedstocks

本发明提供一种脂肪族羟基含量为从约2.5mmol/g至约7mmol/g的软木天然木素衍生物。令人惊奇的是，发现通过选择具有一定脂肪族羟基含量的天然木素衍生物可以提供一致的和可预测的抗氧化活性。