| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 530502000 | Compound which includes phenolic hydroxy or oxygen containing hetero ring reacted with a lignin or lignin containing substance, or product thereof | 15 |
| 20090062516 | LIGNIN AND OTHER PRODUCTS ISOLATED FROM PLANT MATERIAL, METHODS FOR ISOLATION AND USE, AND COMPOSITIONS CONTAINING LIGNIN AND OTHER PLANT-DERIVED PRODUCTS - Lignin polymers having distinctive properties, including a generally high molecular weight and generally homogeneous size distribution, as well as preservation of native reactive side groups, are isolated by solvent extraction of plant materials. Methods for isolation of lignin polymers, and for use of the isolated lignin polymers are disclosed. Compositions containing lignin isolated from plant materials, such as carbon fiber composites, resins, adhesive binders and coatings, polyurethane-based foams, rubbers and elastomers, plastics, films, paints, nutritional supplements, food and beverage additives are disclosed. Xylose and xylose derivatives, furfural, fermentable sugars, cellulose and hemi-cellulose products may be used directly or further processed. The lignin polymers and other plant-derived products disclosed herein may be produced in abundance at low cost, and may be used as substitutes for feedstocks originating from fossil fuel or petrochemical sources in the manufacture of various products. | 03-05-2009 |
| 20090209739 | Method for separating and recovering lignin derivatives - An object of the present invention is to provide a technique for separation/collection of a lignin derivative which is useful for the separation of a lignin derivative having a 1,1-diphenylpropane unit and/or a unit derived from the 1,1-diphenylpropane unit from a mixture system containing the lignin derivative. In the Present invention, a lignin derivative having a 1,1-diphenylpropane unit and/or a unit derived from the 1,1-dipheylpropane unit is allowed to contact with a metal oxide in a liquid medium, thereby separating the lignin derivative in the form retained on the metal oxide. | 08-20-2009 |
| 20110196136 | CONCENTRATED ACID TREATMENT UNIT, CONCENTRATED ACID TREATMENT METHOD, PHASE-SEPARATION SYSTEM PLANT FOR BOTANICAL RESOURCE, AND CONVERSION METHOD - Provided is a Phase-Separation system plant for botanical resource, a conversion method, a concentrated acid treatment unit, and a concentrated acid treatment method by which lignin derivatives and hydrolyzed carbohydrate are manufactured out of a botanical resource efficiently and continuously. A concentrated acid treatment unit ( | 08-11-2011 |
| 20110282038 | RECOVERY OF LIGNIN AND WATER SOLUBLE SUGARS FROM PLANT MATERIALS - In one aspect, a process for treating woody plant material is provided, the process involving contacting the plant material with a continuous flow of an aqueous ethanol solution at elevated temperature and pressure under conditions that promote extraction of ethanol-soluble lignin from the plant material and retention of hemicellulose sugars, xylose and cellulose in the treated plant material solids. In another aspect, a process for extracting hemicellulose sugars from lignin-depleted plant material solids is provided, the process involving contacting lignin-depleted plant material with water at elevated temperature and pressure under conditions that promote extraction of hemicellulose sugars from the plant material; and recovering hemicellulose sugars from the liquid mixture. | 11-17-2011 |
| 20120041183 | CELLULOSE MATERIALS WITH NOVEL PROPERTIES - A molecule possessing a primary or secondary amino group and an additional functionality capable of providing a novel or improved property to a cellulose material has been permanently attached to the cellulose material in aqueous media using a water-soluble carbodiimide as the coupling agent/activator. One such molecule is 5-aminofluorescein (abbreviated as “A-fluo”) and one such cellulose material is a papermaking pulp. Papers made from a pulp furnish containing, for example, 0.01 wt. % of the “A-fluo”-attached pulp show an embedded marker feature authenticable upon UV or visible light excitation. The “A-fluo”-attached pulp can also be used for the marking and identification of a pulp furnish. | 02-16-2012 |
| 20120322990 | Substrate for Soil Improvement Having a Water-Storing Property, Method for Producing Same, and Use Thereof - The invention relates to a method for producing a lignin-based substrate for soil improvement having a water-storing property, characterized by the following steps: providing lignin, oxidizing the lignin in either an aqueous alkaline suspension or a pH-neutral aqueous suspension, the pH-neutral aqueous suspension being converted into an alkaline substance after the lignin has been oxidized, cross-linking the lignin in an aqueous alkaline medium using multifunctional compounds, and neutralizing, drying, and comminuting the lignin. | 12-20-2012 |
| 20130237695 | LIGNIN-BASED SURFACTANTS - Methods for converting waste streams from the wood pulping industry to high-value surfactants are described. For example, isolated lignin and lignosulfonate or waste streams containing lignin and lignosulfonate can be directly converted to surfactants, or they can be first converted to methylol derivatives and treated with further reagents to produce surfactants. | 09-12-2013 |
| 20130331555 | SEPARATION OF LIGNIN FROM PLANT MATERIAL - Technology for separating lignin from alkaline solutions which arise in production of cellulose is presented. Isolated lignin can be applied, for instance, for production of carbon fibre, adhesives and binding materials, antioxidants and organic chemicals. Starting materials are non-woody plant materials, from which lignin is dissolved by sulphur free alkaline solutions at temperatures below 130° C. Lignin is precipitated by acid, and purified by hydrolyzing hemicellulose by acid or by enzymatic reactions or a combination of these. Lignin separated has a closely similar structure as lignin in plant material, and its content of functional atom groups can be controlled by changes in processing conditions. | 12-12-2013 |
| 20140039168 | Lignosulfonate Compounds For Solid Ink Applications - A lignosulfonate compound for phase change ink of the formula | 02-06-2014 |
| 20140121360 | INJECTION OF A CHEMICAL REAGENT INTO A PROCESS STREAM THAT CONTAINS LIGNIN - One example embodiment includes inserting a chemical reagent into a process stream that contains one or more lignins to form one or more modified lignins. The formed one or more modified lignins are different than the one or more lignins in the process stream. The one or more modified lignins can be formed in the process stream before a precipitation stage and then separated from the process stream. Also, contaminates can be removed from the separated one or more modified lignins and the one or more modified lignins can be pressed and dried. | 05-01-2014 |
| 20140194603 | METHOD FOR THE PRODUCTION OF LIGNIN-CONTAINING PRECURSOR FIBRES AND ALSO CARBON FIBRES - The invention relates to a method for the production of a precursor for the production of carbon- and activated carbon fibres according to the wet- or air-gap spinning method, in which a solution of lignin and a fibre-forming polymer in a suitable solvent is extruded through the holes of a spinning nozzle into a coagulation bath, the formed thread is stretched and subsequently treated, dried at an elevated temperature and then wound up. The lignin-containing thread is an economical starting material for the production of carbon- and activated carbon fibres. | 07-10-2014 |
| 20140378671 | PHOSPHONATE-SUBSTITUTED LIGNIN AS A FLAME RETARDANT - Modified lignin having covalently attached phosphorous containing groups and methods for preparing such compounds are described herein. The modified lignin described herein provides a renewable source of flame retardant material. | 12-25-2014 |
| 20160102114 | METHOD FOR PREPARING LOW-MOLECULAR LIGNIN DERIVATIVE - A method of preparing a low-molecular lignin derivative comprises the step of: preparing lignin by hydrolyzing lignocellulosic biomass with an acid; preparing a first mixture by mixing 100 parts by weight of the lignin and 500 parts or more by weight of a phenolic compound; preparing a second mixture by mixing the first mixture with a solvent including the hydrophobic polar solvent; and recovering a low-molecular lignin derivative from the second mixture. | 04-14-2016 |
| 20160120937 | Pharmaceutical compositions comprising 8-substituted dibenzylbutyrolactone lignans - Therapeutic compositions comprising at least one 8-substituted-dibenzylbutyrolactone lignan, preferably a lignan is selected from the group of nortrachelogenin, diasteromeric forms of nortrachelogenin, isomeric forms of nortrachelogenin and combinations thereof as well as 8-methylmatairesinol and 8-methyldimethylmatairesinol, for use in a method of treating cancer or a similar condition wherein the growth factor signaling pathway of a mammal is deregulated. The invention also provides therapeutic pharmaceutical combinations comprising a hydroxy-dibenzylbutyrolactone lignan and at least one TRAIL receptor agonist. The hydroxy-dibenzylbutyrolactone lignans and a TRAIL receptor agonist can be used as a combined preparation for administration to a patient simultaneously, separately or spaced out over a period of time in treating cancer. | 05-05-2016 |
| 20180022877 | METHODS OF PRODUCING STABLE LIGNIN PHENOLIC OIL | 01-25-2018 |
