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49results about "Hemicellulose coatings" patented technology
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Modification of xylan
InactiveUS20130233501A1Low water solubilityReduce solubilityNon-fibrous pulp additionSpecial paperSolubilityCellulose
The invention provides a method of modifying soluble xylan which contains glucuronic acid and / or arabinose side chains so that it can be adsorbed onto other substrates. The method includes the steps of enzymatically modifying the xylan by selectively removing glucuronic acid and / or arabinose side chains from the xylan with α-D-glucuronidase and / or α-L-arabinofuranosidase, and allowing the modified xylan to adsorb onto the substrate. The substrate may be a cellulosic substrate like pulp or paper or a non-cellulosic substrate. The enzymes are able to remove a sufficient number of the xylan side chains so as to decrease water solubility of the xylan, induce xylan precipitation and allow adsorption of the xylan onto other substrates. A pulping process which incorporates modification of xylan and adsorption onto cellulosic material is also provided, as are products which contain the modified xylan.
Owner:STELLENBOSCH UNIVERSITY
Coating composition, a method for coating a substrate, a coated substrate, a packaging material and a liquid package
InactiveUS20140251856A1Improving gas barrier functionExcellent gas barrier propertiesLiquid surface applicatorsWrappersAlcoholPolyvinyl alcohol
The present invention relates to a curtain coatable gas barrier coating composition comprising a polymer and a surfactant, wherein the polymer is selected from a group consisting of polyvinyl alcohol and polysaccharides, or mixtures thereof, wherein said polysaccharides are soluble or dispersable or suspendable in water and the surfactant is a water soluble non-ionic ethoxylated alcohol. The present invention also relates to a method for providing a substrate with a gas barrier layer by means of the coating composition, and a coated substrate having at least one gas barrier layer obtained by coating the substrate with the coating composition. Further, the invention relates to a packaging material comprising a coated paperboard coated with the coating composition, and a liquid package comprising such a packaging material.
Owner:BILLERUDKORSNES SKOG & IND AB
Corrugation adhesive, corrugated board, and preparation methods therefor
InactiveUS6179905B1Superior green tack propertyTack of the adhesive will be surprisingly improvedMechanical working/deformationSpecial paperAdhesiveSoluble phase
Disclosed is a method for the preparation of a corrugating adhesive. The method includes the steps of partially depolymerizing a hemicellulose precursor that comprises the soluble phase of an extract obtained from a hemicellulose-containing plant source, and mixing the partially depolymerized hemicellulose with starch to form an adhesive composition. The adhesive composition of the invention exhibits superior shear stability properties as compared with prior art adhesive compositions that incorporate pasted starches, and exhibits superior green tack as compared with other hemicellulose-based adhesives. Also disclosed are a corrugated board and a method for preparing same.
Owner:GRAIN PROCESSING CORP
Polymeric film or coating comprising hemicelulose
ActiveUS20060173104A1Control mechanical propertiesAdvantage for environmentPaper coatingCellulose adhesivesOligomerPlasticizer
A film-forming composition and a polymeric film or coating comprising hemicellulose, having a molecular weight of less than 50 000 g / mol, and at least one component selected from the group consisting of plasticizers, cellulose and a synthetic oligomer or polymer is disclosed. The use of said film or coating as an oxygen barrier is also disclosed. Further, a method for the manufacture of said polymeric film or coating is disclosed, as well as a method for improving the film-forming properties of hemicellulose having a molecular weight of less than 50 000 g / mol.
Owner:SEELUTION AB
Zwitterionic lignin derivatives for marine antifouling coatings
InactiveUS20130236630A1Hindering and delaying biofouling processReduces biofilm formationOrganic active ingredientsImpression capsLacquerBiopolymer
Disclosed are antifouling compositions that can include a biopolymeric matrix which is substantially zwitterionic. The compositions may include a biopolymer matrix having positively charged functional groups, negatively charged functional groups, zwitterionic functional groups, or a combination thereof, such that the composition is substantially zwitterionic. The compositions can be used as additives and as compositions further containing a base material such as paint or lacquer. Methods of making and using such compounds and compositions are also disclosed.
Owner:EMPIRE TECH DEV LLC
Polymeric film or coating comprising hemicellulose
ActiveUS20100129642A1Improve resistance performanceImprove the immunityPigmenting treatmentWater-repelling agents additionCross-linkOligomer
A film forming composition and a polymeric film or coating comprising hemicellulose and at least one component selected from the group consisting of plasticizers, cellulose, and an oligomer or polymer, is disclosed, said polymeric film or coating further comprising at least one additive / reactant increasing the liquid / moisture resistance and mixed with and / or reacting with the hemicellulose and said at least one component before or in conjunction with the forming of the film or coating. The use of said film or coating is also disclosed. Further, a method for the manufacture of said polymeric film or coating is disclosed, as well as a method for improving the liquid / moisture resistance of hemicellulose. Said at least one additive / reactant increasing the liquid / moisture resistance is either a cross-linking agent or a hydrophobizing agent. In another preferred embodiment the additive is a 2:1 layered phyllosilicate. The additive forms a nanocomposite with the hemicellulose as a matrix. The hemicellulose / phyllosilicate nanocomposite reinforced material provides excellent liquid / moisture resistance. Heat treatment of all of the films increases their liquid / moisture resistance and reduces their oxygen permeability.
Owner:SEELUTION AB
Novel dispersions and method for the production thereof
An aqueous dispersion comprising a non-settling colloidal hemicellulose ester polymer in water and a method of producing the same. In the method an esterified hemicellulose is provided wherein at least a part of the esterifying groups are derived from a lower alkanoic acid; the esterified hemicellulose is dissolved in an alkanoic acid to produce a solution; and the solution is dispersed into water to produce an aqueous dispersion of the hemicellulose ester. The present compositions, containing hemicellulose derivatives of low solubility, can be used in paper, paperboard and other fibre-based materials, for paints, surface treatments for polymer films, and polymer films as such, and can be applied as binders.
Owner:VALTION TEKNILLINEN TUTKIMUSKESKUS +3
Preparation process of tempered glass
InactiveCN107325649AImprove plasticityGood film formingFireproof paintsWax coatingsSurface stressToughened glass
The invention provides a preparation process of tempered glass, which comprises the following steps: (1) cutting and edging a raw glass sheet according to design requirements; (2) tempering the cut and edged glass of the step (1) and then putting into a cleaning machine for cleaning; (3) putting the cleaned glass of the step (2) in a mixed solution of H2O2 with the mass concentration of 30% and H2SO4 with the mass concentration of 98% for ultrasonic activation, after activation, cleaning the glass to be neutral, and blow-drying; (4) plating an anti-fogging film on the surface of the blow-dried glass in step (3); (5) baking the film-plated glass of the step (4) in a baking oven, wherein the baking temperature is 150 to 250 DEG C, and the time is 50 to 60min; (6) putting the baked tempered glass of the step (5) into the cleaning machine for cleaning to obtain a finished product. The tempered glass of the invention has the advantages of uniform surface stress distribution, high flatness and a good anti-fogging effect.
Owner:HEFEI LIYUTAI GLASS PROD CO LTD
Oxygen barrier for packaging applications
The present invention relates to composite material of xyloglucan and clay for use as a coating material. The invention also relates to a method of producing the coating.
Owner:KTH HLDG AG
Method for chemically modifying waterborne wood coating by using nano-cellulose dispersed graphene
ActiveCN108977045AHigh reactivityLarge specific surface areaCellulose coatingsPolyurea/polyurethane coatingsDispersityNanoparticles dispersion
The invention relates to a method for modifying waterborne wood coating, in particular to a method for chemically modifying the waterborne wood coating by using nano-cellulose dispersed graphene, aiming at solving the problem that the existing waterborne wood coating modified by using nanometer materials is poor in nano particle dispersity, so that the waterborne paint film is poor in mechanical properties. The method comprises the following steps: 1, preparing a hemicellulose-containing nanocellulose aqueous solution enabling cellulose raw materials to be sequentially subjected to extractiontreatment and delignification treatment to obtain holocellulose; then, carrying out mechanical pretreatment or chemical and mechanical mixed pretreatment to obtain a hemicellulose-containing nanocellulose aqueous solution; 2, stably dispersing graphene by using nano-cellulose; 3, carrying out in-situ chemical modification on the waterborne wood coating by using the nano-cellulose dispersed graphene. The method can remarkably improve the mechanical properties, such as adhesion, wear resistance, hardness and impact resistance, of the waterborne wood coating, and even endows the paint film with certain functionality such as electrical conductivity, thermal conductivity, ultraviolet resistance and aging resistance. The method provided by the invention is used for the field of waterborne wood coatings.
Owner:SHANDONG AGRICULTURAL UNIVERSITY
Oxigen stable active containing compositions
InactiveUS20070031582A1Stabilisation can be improvedImprove oxygen stabilisationConfectionerySweetmeatsActive componentCompound (substance)
The invention relates to a moisture and oxygen stable composition comprising inert core particles and a partial or complete coating thereon of at least one active compound encapsulated in a carbohydrate matrix, which matrix is characterised by 5 to 95 wt. % high molecular weight film forming carbohydrate; 5 to 30 wt. % mono, di and trisaccharides; and 0 to 30 wt. % maltodextrin. based on the total weight of the carbohydrate matrix, wherein the coated particle is further coated with a modified cellulose. The active compound to be encapsulated in the carbohydrate matrix can be selected from the group consisting of flavourants, fragrances, pharmaceuticals and wash-active components.
Owner:QUEST INTERNATIONAL
Polymeric film or coating comprising hemicellulose
ActiveUS7427643B2Limited mechanical propertyAdvantage for environmentPaper coatingHemicellulose coatingsOligomerPlasticizer
Owner:SEELUTION AB
Carbon nanotube - polysaccharide composite
InactiveUS20150041730A1Non-metal conductorsMaterial nanotechnologyConductive materialsHigh frequency electromagnetic radiation
The present invention provides methods for the fabrication CNT dispersions using polysaccharides, especially hemicelluloses, and most advantageously xylan.The present invention also provides methods to isolate, and purify hemicelluloses from plant materials.The present invention provides methods and compositions for the coating of solid surfaces using CNT dispersions.One currently preferred method coating of a surface is electrospraying the CNT dispersion.The present invention provides electrically conducting materials that can replace conducting plastics, graphite, and even some metals as electrical conductors.In one embodiment the present materials can be used as stealth coatings.In another embodiment the present materials can provide shield against high frequency electromagnetic radiation, while being permeable to low frequency magnetic field.In one specific application the dispersion fabricated from double walled carbon nanotubes (DWNTs), and xylan can be used to fabricate transparent electrically conducting films.In one embodiment of the present invention the surface films will be cross-linked, and these films can be used in multiple applications including supercapacitors.
Owner:KANGAS VEIJO
Preparation method of liquid covering material for agricultural purposes
ActiveCN103013333AWith viscosityMolecular weight controllableDextran coatingsStarch coatingsCelluloseFiltration
The invention relates to a preparation method of a liquid covering material for agricultural purposes. The method comprises: mixing 0.01-20?parts of polyethylene glycol, 0.01-10?parts of diacid, 0.01-10?parts of diol, and 0.01-1 part of a catalyst by mole ratio, and subjecting the mixture to a stirring reaction in an oil bath of 50DEG C-250DEG C so as to obtain a compound; by mass, taking 0.1-10 parts of the compound, adding 0.1-20 parts of water soluble cellulose, 0.1-10 parts of a membrane-forming agent, 0.1-10 parts of a surfactant, 0.2-10 parts of a plasticizer, 0.1-10 parts of a wet strength agent, 0.05-5 parts of a stabilizer, 0.1-10 parts of a crosslinking agent and 100-1000 parts of water, and subjecting the mixture to a stirring reaction at 30DEG C-100DEG ; then reducing the pressure to remove foams, and conducting cooling to room temperature; and adding water to perform dilution, and carrying out filtration, thus obtaining the liquid covering material. The liquid covering material for agricultural purposes prepared in the invention can disperse or dissolve in water, can coagulate into a membrane after being sprayed in soil and can achieve a good effect. The prepared material has the characteristics of low economic cost, no residue, no toxicity and harmlessness.
Owner:SHAANXI UNIV OF SCI & TECH
Polymeric film or coating comprising hemicellulose
ActiveUS8557033B2Improve the immunityReduce transmissionPigmenting treatmentWater-repelling agents additionCross-linkOligomer
Owner:SEELUTION AB
Coating composition, a method for coating a substrate, a coated substrate, a packaging material and a liquid package
ActiveUS20140377486A1Quality improvementEnhanced barrier functionLiquid surface applicatorsWrappersPolyvinyl alcoholPaperboard
Owner:BILLERUDKORSNES SKOG & IND AB
Cacao Husk-Derived Water-Soluble, Dietary Fiber, Process For Its Production, Foods and Beverages Containing It And Methods For Their Preparation
InactiveUS20100040734A1Good dispersionReduce flavorDough treatmentTea extractionAdditive ingredientProtein food
Owner:FUJI OIL CO LTD
Polysaccharide based hydrophilic coatings
InactiveUS20060269679A1Starch coatingsLiquid/solution decomposition chemical coatingHydrophilic coatingPolysaccharide
A hydrophilic coating composition comprising a hydrophilic base material, an adhesion promoter and a surfactant. A method of applying a hydrophilic coating to a hydrophobic surface comprising preparing a hydrophilic coating, heating the hydrophilic coating and spraying the hydrophilic coating on the hydrophobic surface. A method of preparing a hydrophilic coating comprising preparing a solution of hydrophilic base material, heating the solution of hydrophilic base material and mixing at least a portion of the heated hydrophilic base material solution with an adhesion promoter and a surfactant.
Owner:BIOTECH RES & DEV
Non-covalently bonding anti-microbial nanoparticles for water soluble wood treatment
Embodiments described herein include capped nanoparticles having a nanoparticle core and at least one capping agent including a biochemical constituent of wood or a woody plant or a derivative thereof functionally associated to the nanoparticle core. Some embodiments provide for wood products and wood treatment compositions including such capped nanoparticles, and methods for preparing and using such capped nanoparticles to produce treated wood or treated wood products.
Owner:EMPIRE TECH DEV LLC
Oxygen barrier for packaging applications
Owner:KTH HLDG AG
Materials and Methods
InactiveUS20150329725A1Reduce and prevent foulingStarch dervative coatingsCellulose coatingsPolysaccharideChemistry
The invention relates to a substrate intended in use to contact a fouling agent, the substrate including a coating comprising polysaccharide, which coating serves to reduce or prevent fouling of the substrate caused by contact from the fouling agent, in comparison to an equivalent uncoated substrate. The invention also relates to the anti-fouling coating, to apparatus comprising such coating and to related methods of reducing or preventing fouling of a substrate intended in use to contact a fouling agent.
Owner:UNIVERSITY OF MELBOURNE
Preparation method of antibacterial coating for food packaging
ActiveCN107641377AGood antibacterial effectRaw materials are safe and non-toxicStarch dervative coatingsAntifouling/underwater paintsDibutyl sebacateDimethyl siloxane
The invention discloses a preparation method of antibacterial coating for food packaging. The preparation method comprises the following preparation steps: (1) adding vermiculite powder and titanium dioxide into plant essential oil, stirring, then adding calcium chloride and polyvinyl alcohol, and stirring to obtain a modified material I; (2) adding oxidized starch, konjac glucomannan, locust beangum, tamarind gum and organic acid into deionized water, stirring, then adding polyethyleneimine, hydroxysafflor yellow A and ethanol, and stirring; (3) adding nano-silver modified hydroxy-terminatedpoly-dimethylsiloxane and the modified material I obtained in the step (1) in the step (2), and stirring; (4) lastly, adding dibutyl sebacate and silicone polyether, stirring, grinding and standing for defoaming to obtain the antibacterial coating. The antibacterial coating prepared by the method has high antibacterial property, has antibacterial duration being up to 18 months, is prepared from safe and nontoxic raw materials, and is very suitable for the application demand in the food packaging field.
Owner:广东威雅包装印刷有限公司
Protective coating
A composition is provided consisting of an aqueous solution comprising at least one natural polysaccharide or a derivative thereof and at least one polymeric polyamino compound, the composition being capable of forming a film when applied onto a substrate. The invention also involves a method for temporary protection of a substrate surface from environmental influence using such composition.
Owner:POLYSACCHARIDE INDS PSI
Protective coating
Owner:POLYSACCHARIDE INDS PSI
Xyloglucan film
ActiveCN105873991ALow moisture absorptionReduce solubilityHemicellulose coatingsMedicinal chemistryOxygen barrier
Owner:STORA ENSO OYJ
Xyloglucan film
ActiveUS20160251488A1Excellent oxygen barrier propertiesHemicellulose coatingsMedicinal chemistryOxygen barrier
The present invention relates to films comprising a xyloglucan comprising not more than 11 mol % galactose residues, as well as a method for making such films, and its use as an oxygen barrier.
Owner:STORA ENSO OYJ
Xyloglucan film
Owner:STORA ENSO OYJ
Materials and methods
InactiveCN105120973AMitigate or prevent the occurrence ofStarch dervative coatingsAntifouling/underwater paintsPolysaccharideChemistry
Owner:UNIVERSITY OF MELBOURNE
Super-infiltration metal net film and preparation method and application thereof
ActiveCN114410151AFlux decaySuper hydrophilic underwater oleophobicMembranesSemi-permeable membranesCelluloseHydrophilic coating
The invention discloses a super-infiltration metal net film and a preparation method and application thereof, and belongs to the field of novel environment-friendly materials. The prepared super-infiltration metal net film is coated with a super-hydrophilic coating, the flatness and compactness of the net film are improved through chain type or bead type nanometer silica sol in the formula of the coating, and nanocrystalline cellulose and other natural organic compounds which are extremely high in hydrophilicity and economical and wide in source are added to enhance the hydrophilicity of the net film; meanwhile, the water-based acrylic resin with a relatively low swelling degree in water and other water-based resin with relatively good hydrophilicity are used for cross-linking and curing, so that the water resistance of the net film is improved; the prepared super-hydrophilic filter element structurally comprises a stainless steel framework, a super-infiltration metal net film, an end cover and a sealing ring from inside to outside in sequence, has the characteristics of good hydrophilicity, strong pollution resistance, excellent water soaking resistance and the like, and can be used for efficiently separating an oil-water mixture.
Owner:SOUTHEAST UNIV +1
Wood paste and objects made therefrom
Owner:YISSUM RES DEV CO OF THE HEBREWUNIVERSITY OF JERUSALEM LTD
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