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62 results about "CHITOSAN PCA" patented technology
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Sanitary napkins with hydrophobic lotions
InactiveUS20050129651A1Easy to handleImprove welfareBiocideCosmetic preparationsParticulatesCarrier system
Lotions and methods for preparing a lotion with chitosan material in a reliable high speed process is disclosed. In one embodiment the method can comprise the steps of providing a carrier system; providing a premix solution of chitosan material in a solvent at a temperature of at least about 35 degrees C. In another embodiment the method can comprise providing particulate chitosan material with less than about 1% of the particles having a diameter of greater than about 250 microns; and milling the small particulate chitosan into the carrier system at a temperature of at least about 35 degrees C. Also disclosed are disposable absorbent articles comprising a lotion of the present invention.
Owner:THE PROCTER & GAMBLE COMPANY
Composition and method for efficient delivery of nucleic acids to cells using chitosan
InactiveUS20090075383A1Improve the level ofEfficient gene transfer vehicleCarbohydrate active ingredientsOther foreign material introduction processesPhosphateCompound (substance)
There is disclosed a composition and a method for the efficient non-viral delivery of nucleic acids to cells using chitosan. In order to achieve high efficiency of transfection, the composition contains a nucleic acid and a chitosan that has the following physico-chemical properties: a combination of a number-average molecular weight between 8 kDa and 185 kDa and a degree of deacetylation between 72% and 92%. The chitosan molecule can also present additional physiochemical properties such as a block distribution of acetyl groups obtained by a heterogeneous treatment of chitin, and / or a polydispersity index between 1.4 and 7.0. By correctly controlling these parameters, efficient delivery systems may be produced that are effective when optimized for different conditions such as the pH of transfection media and amine-to-phosphate ratio.
Owner:CORP DE LECOLE POLYTECHNIQUE DE MONTREAL +1
Methods for purifying chitosan
Owner:PROVIDENCE HEALTH SYST OREGON
Water treatment compositions
InactiveCN1438972AWater treatment compoundsSpecific water treatment objectivesFood additiveDisinfectant
Compositions, methods and kits for purifying and clarifying and / or nutrifying contaminated drinking water and which comprise a primary coagulant material and a bridging flocculent material, the levels and ratios of coagulant to flocculent preferably falling within certain ranges. Highly preferred compositions also contain one or more of a cationic coagulant aid, especially chitosan, a microbiocidal disinfectant, a water-soluble alkali, a water-insoluble silicate, and a food additive or nutrient source.
Owner:THE PROCTER & GAMBLE COMPANY
Composition with high moisture retention performance and application of composition to infant cream
ActiveCN105640796AHas antibacterial effectHas the following advantages and effects: the present invention providesCosmetic preparationsToilet preparationsNatural productButanediol
The invention discloses a composition with high moisture retention performance and application of the composition to infant cream. The composition is prepared from 5-20 parts of chitosan, 10-30 parts of oat polypeptide, 5-20 parts of dendrobium polysaccharide, 0.5 part of hydroxyacetophenone, 0.5 part of hexylene glycol, 1.5 parts of butanediol and 30-70 parts of water. Chitosan, oat polypeptide, dendrobium polysaccharide and water are mixed to be uniform; hydroxyacetophenone, hexylene glycol and butanediol are mixed to be uniform and added to the solution obtained formerly, the mixture is stirred to be uniform, and the composition with high moisture retention performance is obtained. Different natural components in the composition have a coordination effect, the respective effects are improved, the natural product components are used in compatibility, safety and reliability are achieved, no stimulation effect is caused for skin of the human body, long-acting moisture retention performance and a certain antibacterial effect are achieved, and the composition is suitable for being used by a wide range of people and especially for infants.
Owner:中山爱护婴童健康科技研究有限公司
Chitosan beads and filler comprising such beads
InactiveUS20140377368A1Lasting effectRapidly volumeBiocideCosmetic preparationsCross-linkCITRATE ESTER
The present invention pertains to chitosan beads consisting of chitosan cross-linked with citrate ions. The present invention furthermore pertains to a filler comprising such chitosan-citrate beads. In one embodiment of the instant invention the filler is a dermal filler. In one further embodiment of the present invention the dermal filler is for the treatment of wrinkles and / or folds. In another embodiment of the instant invention the filler is for use in the treatment of a medical condition. The filler provided in the present invention may further comprise one or more active pharmaceutical ingredients. Further, the present invention pertains to a process for preparing the filler as claimed herein.
Owner:MERZ PHARMA GMBH & CO KGAA
Lysozyme-chitosan films
One aspect of the disclosure herein contemplates a composite film comprising lysozyme incorporated within a chitosan polymer matrix. In another aspect, there is disclosed a film that includes chitosan, and about 10 to about 200 weight percent lysozyme, based on the weight of the chitosan. Also disclosed is a method for making a film that includes dissolving or dispersing chitosan and lysozyme in an aqueous medium resulting in a film-forming solution or dispersion; applying the film-forming solution or dispersion to a substrate surface; and converting the film-forming solution or dispersion into a film. In a particularly useful application, the film is an antimicrobial protectant for a food article.
Owner:THE STATE OF OREGON ACTING BY & THROUGH THE OREGON STATE BOARD OF HIGHER EDUCATION ON BEHALF OF OREGON STATE UNIV
Pharmaceutical formulations for intranasal administration of protein comprising a chitosan or a derivative thereof
InactiveUS20060120973A1Promote absorptionImprove handlingOrganic active ingredientsBiocideHuman growth hormoneCHITOSAN PCA
Owner:ARCHIMEDES DEVMENT
Process for extraction of fish collagen and formulations of 3D matrices of collagen for biomedical and therapeutic applications thereof
ActiveUS20170204136A1High purityMinimizing chanceOrganic active ingredientsPeptide/protein ingredientsALPHA-ARBUTINBiopolymer
Polyelectrolyte based bioactive super-absorbent material ionotropically crosslinked / neutralized involving polyvalent carboxylic acids, citrate, Kojic Acid, Alpha Arbutin along with fish scale collagen cross linked with other polyelectrolyte biopolymers preferably selected from chitosan, alginate or their combinations is used in this invention. The advancement is also directed to process of extraction of collagen of high purity from fresh water fish scale by salt and alkaline washing, crushing followed by continuous dialysis thereby minimizing the chance of collagen degradation. Also disclosed are different forms of collagen-chitosan composite biomaterial using citrate as the neutralizing buffer in combination with antimicrobial agent, antioxidant, skin plumper and melanin reducer wherein the different forms of collagen chitosan particularly sheet, flakes, powder, gel, particles, fiber, film, spray etc. reveal efficient wound healing properties. The advancement is thus directed to find wide application in various dermal wound healing, tissue engineering, 3D cell culture, cell expansion and cell delivery vehicle, mimicking the in vivo situation in dynamic condition, cosmetics and different other health care applications.
Owner:AMNIVOR MEDICARE PTE LTD
Mung bean enzyme face-cleaning gel
The invention relates to the technical field of skin care products, in particular to mung bean enzyme facial cleansing gel. The mung bean enzyme cleansing cleansing gel includes the following components in weight percent: 0.8-1.2 alkanol acrylate cross-linked polymer, 20-30 lactic acid bacteria or mung bean seed extract fermentation product filtrate, 0.05-0.1 EDTA sodium, curacao Aloe Vera Leaf Extract 0.3‑0.5, Trehalose 1‑3, 30% Sodium Lauroyl Sarcosinate 2‑6, Jojoba Wax PEG‑120 Esters 1‑3, Butanediol 1‑5, Usnea tobeta Extract 0.01‑0.05, Chlorphenesin 0.1‑0.3, Podocarpus Extract 0.5‑2, 1.3 Propylene Glycol 0.8‑1.5, PEG‑40 Hydrogenated Castor Oil 1‑4, Olive Oil PEG‑7 Esters 1‑4, Coco-based Glucoside 1‑5, Water 2‑4, Chitosan Monosuccinamide 2‑5, 10% Potassium Hydroxide, 5% Restoring Chinese Medicine Extract. The mung bean enzyme cleansing and cleansing gel provided by the invention can gently cleanse, remove makeup, repair sensitive skin, purify skin, remove acne and repair.
Owner:彭之玉
Csnr-deficient actinobacteria for the production of an enzyme having chitosanase activity
The present invention relates to genetically modified actinobacteria for the production of an enzyme having chitosanase activity. The genetically modified actinobacteria have a reduced (or abolished) activity of the CsnR polypeptide. Such reduced activity can be obtained by reducing the capacity of expressing the csnR gene, its corresponding transcript or expressing a dominant-negative CsnR polypeptide. Such genetically modified actinobacteria are less dependent (and, in some embodiment, totally independent) on the presence of chitosan in the culture medium for producing an enzyme having chitosanase activity. In addition, the genetically modified bacteria produce less proteases in the culture medium and ultimately provide a chitosanase end-product with higher purity.
Owner:SCOPRA SCI & GENIE SEC
Method for manufacturing drinking water having chitosan
InactiveUS20070238698A1Excellent preservativeExcellent stable propertyBiocideCarbohydrate active ingredientsAcid waterChitin formation
A method to make chitin dissolve into and stored in the acid water to obtain drinking water having chitosan includes putting water into chitin. By mixing or an adequate vibration, the drinking water having granular chitosan is produced. Further, the granular chitosan in the water has excellent preservative and stable properties.
Owner:LIN HSIEN CHIH +1
Polypeptide protein oral nano particle preparation
InactiveCN1454588AImprove bioavailabilityOral administration is convenientPowder deliveryPeptide/protein ingredientsChitosan coatingPolyester
The invention is a polypeptide protein type oral nano granular preparation. It uses polymer or amphiphatic compound as coating material, and uses the hydrogenous bonds formed between the surfactants absorbed on the interface of the coating material and the oil-water, for examples, the amido in the swelling chitosan molecule in the chitosan coating polyester nano granule and the oxygen atom or the alcohol hydroxyl in the hydrophilic ehenoxy group form the hydrogenous bonds to make it; or the chitosan directly makes the gelation reaction with the multivalent anions to make the nano-granular preparation.
Owner:SHENYANG PHARMA UNIVERSITY
Chitosan-containing polysaccharide, method for preparing the same and use thereof
InactiveCN1720265AValue back to normalLower total cholesterolOrganic active ingredientsMetabolism disorderDiseasePolymer science
Owner:TONE BORING
Functionalization of paper components
InactiveUS20090165975A1Improve mechanical propertiesImprove economyNatural cellulose pulp/paperSpecial paperFiberPaper based
Compositions and methods of producing paper-based materials are disclosed. In general, the techniques utilize an amine-containing polymer, such as chitosan, to functionalize one or more components of a mixture used to form materials such as paper-based materials. Such components can include the fibers of a pulp and / or filler particles. In one instance, either the pulp or the filler particles are functionalized, but not both. Such functionalization can improve the qualifies of a paper-based material relative to when such functionalization is not utilized. Techniques and compositions are also described to further improve the qualities of a paper material by utilizing a complementary polymer which can couple with the amine-containing polymer.
Owner:SOANE LABS
Dehydrated chitosan nanoparticles
InactiveUS20110033547A1Powder deliveryOrganic active ingredientsChitosan nanoparticlesScreening method
The present invention relates to dehydrated nanoparticles comprising chitosan and a nucleic acid. Preferably, the nucleic acid is a siRNA. Dehydrated nanoparticles of the invention have improved storage characteristics. The particles may be used in screening methods, e.g. where they have been dried onto a solid support, such as the surface of a culture well. The nanoparticles may also be dried onto implants for tissue engineering scaffolds, where they enable transfection of cells growing on the scaffold. Moreover, the particles have therapeutic relevance.
Owner:AARHUS UNIV
Compositions and methods for delivering an agent to a wound
ActiveUS20120149659A1Reduce probabilityReduced survivalAntibacterial agentsBiocidePoint of careClinical settings
The invention provides compositions featuring chitosan and methods for using such compositions for the local delivery of biologically active agents to an open fracture, complex wound or other site of infection. Advantageously, the degradation and drug elution profiles of the chitosan compositions can be tailored to the needs of particular patients at the point of care (e.g., in a surgical suite, clinic, physician's office, or other clinical setting).
Owner:UNIVERSITY OF MEMPHIS RESEARCH FOUNDATION
Preparation and application of salicylic acid and chitosan compound composition
ActiveCN104622710ALess irritatingCosmetic preparationsToilet preparationsPolymer scienceSalicylic acid
The invention discloses a compound composition containing salicylic acid and chitosan, wherein the weight ratio of salicylic acid to chitosan is 1:1-1:1.8, and pH of the composition is 2.0-5.0. The invention further relates to a preparation method of the composition containing salicylic acid and chitosan, and application of the composition in cosmetics.
Owner:SHANGHAI JAHWA UNITED
Wood-plastic material and preparation method thereof
The invention discloses a wood-plastic material which comprises, by weight, 50.3% to 77% of poly ethylene (PE), propene polymer (PP), poly vinyl chloride (PVC) or acrylonitrile butadiene styrene styrene (ABS) resins; 8.8% to 25.1% of plant fibers; 0.9% to 3.0% of tribasic lead sulfate; 0.1% to 0.5% of zinc stearate; and 0.1% to 0.5% of calcium stearate; and further comprises dibasic lead phosphate, paraffins, stearic acid, acrylate copolymer, chlorinated polyethylene, titanium dioxide, chitin, chitosan and light calcium carbonate. According to the wood-plastic material, the chitin and the chitosan are added to improve the comprehensive performance of the wood-plastic material, the performance of the wood-plastic material achieves the performance of outdoor doors and windows manufactured by common pure polymer materials through a unique formula including mainly fibers, polymer materials, necessary processing agents, chitin and chitosan.
Owner:ANHUI AOBO NEW MATERIAL
Hemostatic composition and device
InactiveUS20160346239A1Reduced tendency to swellEasy to useOrganic active ingredientsSurgical adhesivesFibrinolytic inhibitorEpsilon-Aminocaproic Acid
A hemostatic composition comprises calcium alginate, a chitosan, epsilon-aminocaproic acid, an acid selected from aminomethylbenzoic acid and tranexamic acid, and tannin. The method of making the hemostatic composition comprises mixing one or more polysaccharide bases, tannin, a fibrinolytic inhibitor, colloidal silver and a solvent to form a mixture, and drying the mixture at a temperature between 25° C. and 80° C. until residual moisture content is approximately 15 to 20%.
Owner:KOROBOV MAXIM
Methods for regulating gelation of polysaccharide solutions and uses thereof
Owner:UNIV OF VIRGINIA ALUMNI PATENTS FOUND
Activated Carbon Composition and Method for Decolorizing Liquid by Using the Same
InactiveUS20080268113A1Increase turbidityFilter evenlyCarbon compoundsAlcoholic beverage preparationCelluloseActivated carbon
An activated carbon composition which is less apt to cause dusting, has satisfactory handleability, and is excellent in decoloration performance, etc. The composition is characterized by comprising activated carbon and cellulose which have been coated with chitosan. Preferably, the composition is one obtained by precipitating chitosan from a chitosan solution in the presence of activated carbon and cellulose to thereby coat the activated carbon and cellulose with the chitosan. The composition is further characterized by containing the cellulose and the chitosan in amounts of 1 to 30 pts.wt. and 0.1 to 15 pts.wt., respectively, per 100 pts.wt. of the activated carbon.
Owner:OTSUKA FOODS CO LTD
Filter comprising multiple halogens and chitosan
InactiveUS20120199540A1Other chemical processesSpecific water treatment objectivesHalogenCHITOSAN PCA
The water treatment systems may generally comprise multiple halogens and chitosan or derivatives thereof as well as methods of making and using the same. A water treatment system to provide potable water may generally comprise an inlet in fluid communication with an outlet, a halogen release system intermediate the inlet and the outlet, and a halogenated chitosan intermediate the halogen release system and the outlet. The system may comprise a scavenger barrier intermediate the halogenated chitosan and the outlet. The halogen release system may comprise a first halogen having a first oxidizing potential. The halogenated chitosan may comprise a second halogen having a second oxidizing potential. The second oxidizing potential is greater than the first oxidizing potential.
Owner:WATER SECURITY CORP
Vegetable dye for fabrics and preparation method of vegetable dye
InactiveCN110042677AHigh boiling pointReduce volatilityNatural dyesDyeing processCelluloseSodium bicarbonate
The invention provides a vegetable dye for fabrics. The vegetable dye is prepared from, by weight, 15-25 parts of a plant coloring agent, 25-45 parts of dimethyl carbonate, 1-3 parts of urea, 2-5 parts of polyethylene glycol, 0.8-1.5 parts of sodium polyacrylate, 0.5-1 part of cellulose sodium sulfonate, 0.3-0.5 part of diphenylamine, 1.5-3 parts of sodium bicarbonate, 4-9 parts of ethylenediaminetetraacetic acid and 50-90 parts of deionized water. The vegetable dye for the fabrics is also prepared from, by weight, 2-7 parts of an antibacterial agent, wherein the antibacterial agent is chitosan or chitin. The invention further provides a preparation method of the vegetable dye. The method is simple in operation and mild in condition. The vegetable dye for the fabrics has the advantages that a natural plant extract is adopted as the vegetable dye, the vegetable dye is safe, environmentally friendly, easy to degrade, and poisonless and harmless for the human body, through the auxiliaryaction of the polyethylene glycol, the cellulose sodium sulfonate, the diphenylamine, the sodium polyacrylate and the sodium bicarbonate, the color fixing rate is high, the vegetable dye does not falloff easily, and the practical significance is higher.
Owner:HENAN INST OF SCI & TECH
Wood-plastic material for manufacturing furniture board and preparation method thereof
InactiveCN104672590AImprove performanceSolve the defects that can not be used in outdoor doors and windowsPolymer sciencePlastic materials
The invention discloses a wood-plastic material for manufacturing a furniture board and a preparation method thereof. The wood-plastic material comprises the following components by mass percent: 50.3-77% of a resin, 8.8-25.1% of plant fibers, 0.9-3.0% of processing aids MBS, 0.1-0.5% of zinc stearate, 0.1-0.5% of calcium stearate, 0.2-1.0% of lead dibasic phosphate, 0.1-1.0% of paraffin, 0.2-1.0% of stearic acid, 1-4% of a dimethyl ester copolymer, 4-15% of chlorinated polyethylene, 0.5-1.5% of talcum powder, 0.5-2.0% of chitin, 1.0-3.0% of chitosan and 5-20.1% of light calcium carbonate. The performance of a pure high polymer material is achieved, the moisture content is reduced by 20 percent, the dimensional change rate is reduced by 15 percent after heating, the tensile strength is improved by 40 percent, the bending strength is improved by 25 percent, and the defect that the previous wood-plastic material cannot be applied to outdoor doors / windows is overcome.
Owner:湖北楚韵新材料科技发展有限公司
Antibacterial solid surface materials containing chitosan-metal complexes
The present invention provides a solid surface material comprising an antimicrobial agent in a thermosetting and / or thermoplastic resin matrix, wherein the antimicrobial agent comprises a chitosan-metal complex.
Owner:EI DU PONT DE NEMOURS & CO
Coagulant-enhanced pre-filtration system
InactiveUS20080121588A1Water treatment parameter controlTreatment involving filtrationParticulatesPolyester
A system and method is disclosed for pre-treating water to remove substantial amounts of particulates prior to filtration. A coagulant, such as chitosan is mixed with turbid water and adheres to particulate matter to form large clumps. The water / coagulant mixture is placed in a first reservoir elevated above a second reservoir having a strip of porous material, such as polyester felt, positioned with one end in the first reservoir and another end above the second reservoir and preferably below the waterline in the first reservoir. A middle portion of the porous material is elevated above the first and second ends, but at a height relative to the waterline of the first reservoir that is equal or less than the height water will rise in the porous material due to capillary action.
Owner:NATURAL SITE SOLUTIONS
Functional stable bulk blending fertilizer as well as preparation method and application thereof
The invention relates to the technical field of fertilizers, and particularly discloses a functional stable bulk blending fertilizer as well as a preparation method and application thereof. The functional stable bulk blending fertilizer comprises a mixed fertilizer, a composite inhibitor, a filler, a functional auxiliary agent and potassium chloride, wherein the mixed fertilizer is prepared from urea, calcium superphosphate and diammonium phosphate; wherein the composite inhibitor is prepared from o-phenyl phosphoramide, thiophosphoric triamide, 3, 4-dimethyl pyrazole phosphate, dicyandiamideand chloromethylpyridine; wherein the composite inhibitor covers the surface of the mixed fertilizer; wherein the functional auxiliary agent is prepared from biochar, humic acid, polyglutamic acid, ammonium polyphosphate, arginine, polyacrylamide, 1, 2-hexanediol, dipotassium glycyrrhizinate, an ascophyllum nodosum extract and chitosan; and the functional additive coats the surface of the filler.The invention also provides the preparation method and the application of the fertilizer. The fertilizer improves the utilization rate of the fertilizer, and can improve the quality and increase the yield of crops.
Owner:STANLEY AGRI GRP CO LTD
Composition and method for stopping hemorrhage, infection, and accelerating healing in various types of wound or burns
A composition and a method of applying the composition to a site on or within a body of a mammal. The composition includes a hydrogel matrix that includes at least one polymer cross linked, via ionic or covalent bonding, with both hyaluronic acid and alginic acid. The at least one polymer is chitosan, poly L-Lysine, or a combination thereof.
Owner:MOUSA DEENA S +1
Chitosan Bornet
ActiveUS20130156836A1Easily substitutedNot degrading qualityBiocideOrganic active ingredientsCHITOSAN PCALiquid food
The invention relates to a chitosan as a micronized powder, to its use for controlling certain yeasts, such as Brettanomyces, and to a method for treating a liquid food.The invention in particular relates to a water-insoluble chitosan as a micronized powder, for which the grain size is comprised between 5 and 50 microns, and to its use in the treatment of liquid foods and / or for controlling Brettanomyces.
Owner:KITOZYME
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