Product
Patsnap Eureka
For R&D, Patsnap Eureka makes reading and utilizing patents & technical documents easy.
Patsnap Eureka AIR
Designed for self-driven R&D workflows. Generate viable solutions, solve complex R&D challenges, empower your innovation with AI.
Patsnap Eureka Materials
Designed for material experts only. Revolutionize your material R&D, from search, analyze, to developing new materials.
Feature
TechResearch
Generate reliable direction feasibility study reports for your R&D in just a few steps.
TechSeek
Discover and master advanced knowledge NOW. Basics, ideas, possibilities, all at once.
TechMind
As an expert in R&D Theories, TechMind can generates customized viable solutions instantly.
TechRisk
Analyze your overall solution with one click, know your potential R&D risks in advance.
TechMonitor
Get weekly tech updates, stay abreast of the latest tech innovations and key insights.
Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
116 results about "Dimethyl fumarate" patented technology
Efficacy Topic
Property
Owner
Technical Advancement
Application Domain
Technology Topic
Technology Field Word
Patent Country/Region
Patent Type
Patent Status
Application Year
Inventor
Dimethyl fumarate (DMF) is the methyl ester of fumaric acid and is named after the earth smoke plant (Fumaria officinalis). DMF combined with three other fumaric acid esters (FAEs) is solely licensed in Germany as an oral therapy for psoriasis (trade name Fumaderm®). Since 2013, it has been used to treat adults with relapsing multiple sclerosis (trade name Tecfidera®). In 2017, a new oral formulation of DMF (trade name Skilarence®) was approved by the European Medicines Agency (EMA) for use in Europe as a treatment for moderate-to-severe plaque psoriasis. DMF is thought to have immunomodulatory properties without causing significant immunosuppression.
Combination therapy for treatment of demyelinating conditions
InactiveUS20080089861A1Relieve symptomsEfficacious, safe and toleratedBiocidePeptide/protein ingredientsNR1 NMDA receptorAutoimmune condition
The invention provides compositions and methods for treating autoimmune diseases such as multiple sclerosis. The compositions include a combination of an NMDA Receptor antagonist, such as memantine or rimantadine, and a fumarate agent, such as dimethyl fumarate.
Owner:ADAMAS PHARMA INC
Medical devices to treat or inhibit restenosis
Implantable medical devices having anti-restenotic coatings are disclosed. Specifically, implantable medical devices having coatings of certain NF-kappaB inhibitors, particularly certain dialkyl fumarates, are disclosed. Dimethyl fumarate is a particularly preferred dialkyl fumarate. The anti-restenotic medical devices include stents, catheters, micro-particles, probes and vascular grafts. Intravascular stents are preferred medical devices. The medical devices can be coated using any method known in the art including compounding the dialkyl fumarate with a biocompatible polymer prior to applying the coating. Moreover, medical devices composed entirely of biocompatible polymer-dialkyl fumarate blends are disclosed. Additionally, medical devices having a coating comprising at least one dialkyl fumarate in combination with at least one additional therapeutic agent are also disclosed. Furthermore, related methods of using and making the anti-restenotic implantable devices are also disclosed.
Owner:MEDTRONIC VASCULAR INC
Pharmaceutical compositions containing dimethyl fumarate
Provided herein are compositions containing compounds, or pharmaceutically acceptable salts, that metabolize to monomethyl fumarate with certain pharmacokinetic parameters and methods for treating, prophylaxis, or amelioration of neurodegenerative diseases including multiple sclerosis using such compositions in a subject, wherein if the compositions contain dimethyl fumarate, the total amount of dimethyl fumarate in the compositions ranges from about 43% w / w to about 95% w / w.
Owner:BIOGEN MA INC
Controlled release pharmaceutical compositions comprising a fumaric acid ester
InactiveUS20130316003A1Improve bioavailabilitySuitable for processingPowder deliveryBiocideControlled releaseBlood plasma
Owner:BIOGEN SWISS MFG GMBH
Controlled release pharmaceutical compositions comprising a fumaric acid ester
InactiveUS20130315993A1Improve bioavailabilitySuitable for processingBiocidePowder deliveryControlled releaseMedicine
Owner:BIOGEN SWISS MFG GMBH
Treatment of multiple sclerosis with combination of laquinimod and dimethyl fumarate
This invention provides a method of treating a subject afflicted with multiple sclerosis or presenting a clinically isolated syndrome comprising administering to the subject laquinimod as an add-on therapy to or in combination with DMF. This invention also provides a package comprising laquinimod and DMF for treating a subject afflicted with multiple sclerosis or presenting a clinically isolated syndrome. This invention also provides laquinimod for use as an add-on therapy or in combination with DMF in treating a subject afflicted with multiple sclerosis or presenting a clinically isolated syndrome. This invention also provides a pharmaceutical composition comprising laquinimod and DMF for use in treating a subject afflicted with multiple sclerosis or presenting a clinically isolated syndrome. This invention further provides use of laquinimod and DMF in the preparation of a combination for treating a subject afflicted with multiple sclerosis or presenting a clinically isolated syndrome.
Owner:TEVA PHARMA IND LTD
Dimethyl fumarate enteric-coated pellets and preparation method thereof
ActiveCN104971048AReduce stimulationPromotes even distributionOrganic active ingredientsGranular deliveryMedicineEnteric coated pellets
The invention discloses dimethyl fumarate enteric-coated pellets and a preparation method thereof. Each enteric-coated pellet comprises a blank pellet core, an active drug layer wrapping the blank pellet core, an isolating layer, an inner layer enteric-coated coating layer and an outer layer enteric-coated coating layer from inside to outside. The enteric-coated pellets are simple in process, complete in release, good in reproducibility, small in gastrointestinal tract irritation, safe and effective.
Owner:SHANGHAI HUILUN BIOLOGICAL TECH CO LTD
Dimethyl fumarate-containing enteric slow-release pellet
InactiveCN104027311AOrganic active ingredientsPharmaceutical non-active ingredientsPharmacologyDimethyl fumarate
The invention relates to a dimethyl fumarate-containing enteric slow-release pellet for treating multiple sclerosis. The dimethyl fumarate-containing enteric slow-release pellet is characterized in that the pellet is subjected to coating, one layer gives play to enteric effect, and one layer gives play to slow-release effect, so that the pellet is controlled to slowly release active substances according to a certain rate after arriving at intestinal tracts.
Owner:AVENTIS PHARMA HAINAN
Synthesis and application of coumarin type dye sensitizer
InactiveCN103087051AImprove electrochemical performanceOrganic chemistryLight-sensitive devicesCyanoacetic acidElectron donor
Owner:ZHEJIANG UNIV OF TECH
Safety broad spectrum high efficiency compound type gas phase mildew proof antiseptic antistaling agent and its manufacturing method and application
A gas-phase antiseptic, antimildew and antistaling agent with high safety and effect and broad spectrum for grain tobacco, medicine, vegetables, clothes, etc is prepared from methyl fumarate, dimethyl fumarate, calcium propioate, VC or VE, benzoic acid and nipagin ester through dissolving in alcohol, heating natural cooling while crystallizing, drying in air, pulverizing and packing in sealed mode.
Owner:唐建文 +3
Mildew-inhibiting composition
InactiveCN102972637AImprove immune functionIncrease feed intakeAnimal feeding stuffBiotechnologyBetaine
The invention relates to a mildew-inhibiting composition which comprises the components in parts by weight as follows: 10-15 parts of modified nanometer montmorillonite, 5-10 parts of dimethyl fumarate, 2-5 parts of ethyoxyl quin, 20-25 parts of sodium glutamate, 20-30 parts of nucleotide disodium, 10-15 parts of sanguinarine, 15-30 parts of glutathione, 10-15 parts of choline chloride, 15-20 parts of glycine betaine, 10-15 parts of sodium sorbate, 2-5 parts of chitosan, 3-9 parts of gala mannan oligosaccharide, and 1-5 parts of fructo-oligosaccharide. The mildew-inhibiting composition provided by the invention further has the effects of enhancing the immune function of animals, strengthening the detoxifying function by liver and kidney and promoting the feed intake of poultry besides good bacteria-inhibiting and sterilizing effects.
Owner:QINGDAO HUADIAN HIGH VOLTAGE ELECTRIC CO LTD
Continuous production process for dimethyl fumarate
InactiveCN102432464ANo pollutionLess likely to cause side effectsOrganic compound preparationCarboxylic acid esters preparationPtru catalystStrong acids
The invention discloses a continuous production process for dimethyl fumarate. The process comprises the following steps of: uniformly filling a strong acid cation exchange resin catalyst into a reaction cylinder, and heating at the temperature of between 60 and 100 DEG C; adding fumaric acid and a methanol solution which serve as reaction raw materials into the reaction cylinder from an inlet of the fixed reaction cylinder, regulating the flow velocity of a flow pump to ensure that the raw materials are kept in the reaction cylinder for 4 to 8 hours, and collecting a reaction product at an outlet; introducing the reaction product into cold water, stirring, and crystallizing a large number of white crystals; filtering, and washing a filter cake by using 8 to 10 percent Na2CO3; and filtering again, washing the filter cake to be neutral by using distilled water, drying at room temperature, and thus obtaining the dimethyl fumarate. In the process, strong acid cation exchange resin is utilized, does not corrode reaction equipment and pollute the environment, can be repeatedly used and is a good environment-friendly catalyst. The catalyst is fixed in the reaction cylinder; the materials are continuously fed and discharged, so that the continuous operation of the reaction can be realized; and the process has simple reaction conditions and makes the operation convenient.
Owner:费近峰
Raw leather pickling agent
The present invention relates to a pickling agent for pickling raw leather with hair. Its composition contains (by weight portion) 40-50 portions of sodium chloride whose grain size is 1 mm-2 mm and water content is less than 5%, 20-30 portions of sodium sulfate, 1.5-3 portions of dimethyl fumarate, 1.5-3 portions of white alum and 1.5-3 portions of sodium carbonate. The above-mentioned all ingredients are uniformly mixed so as to obtain the invented pickling agent. It can make raw leather with hair be smooth and have elasticity.
Owner:WEIFANG CHANGDA CHEM
Tea pulp powder detergent and preparation method thereof
InactiveCN104263541AGood dispersionEasy to cleanInorganic/elemental detergent compounding agentsOrganic detergent compounding agentsSodium acetateSodium phosphates
The invention provides a tea pulp powder detergent and a preparation method thereof. A composition of tea pulp powder and three anionic surfactants (sodium lauryl alcohol sulfate, sodium tripolyphosphate and sodium dodecyl benzene sulfonate) is used as a raw material, wood meal and kaolin are added as frictional materials, and a mixture of sodium diacetate and dimethyl fumarate is used as a mold preventive. The preparation method comprises the following steps: mechanically stirring and mixing, and carrying out microwave sterilization to obtain the tea pulp powder detergent. The tea pulp powder detergent has very high oil sludge cleaning actions, lowers the chemical surfactant consumption, and reduces the environmental pollution.
Owner:吴伟銮
Preparation method of dimethyl fumarate
InactiveCN101475477ASimple and safe operationReduce corrosionPhysical/chemical process catalystsOrganic compound preparationSolid acidSolvent
The invention discloses a method for preparing fumaric dimethyl ester (DMF). The method comprises the steps of taking maleic anhydride as raw material and subjecting the raw material and methanol to catalytic reaction in the presence of a solid-acid SO4 / Al2O3 catalyst so as to obtain the fumaric dimethyl ester, namely a target product of the invention. The purity of the fumaric dimethyl ester obtained by the preparation method is up to over 98.5 percent, and the yield of the fumaric dimethyl ester is between 85 and 95 percent. Compared with the prior art, the method has the advantages that the method adopts the solid-acid SO4 / Al2O3 catalyst, is safe and convenient in operation, improves environment, reduces corrosion on equipment, can cyclically recycle reaction solvent and the solid-acid catalyst, reduces the three wastes, ensures stable product quality, and is suitable for industrial production.
Owner:SHANGHAI CHEM REAGENT RES INST
Microcapsule of dimethyl ester fumarate and preparation method
InactiveCN1600100ADoes not affect the antibacterial effectEliminate usage restrictionsBiocideAnimal repellantsParaffin waxSoftgel
A dimethyl fumarate (DMF) softgel is composed of the core prepared from DMF particles and the wall layer prepared from refined paraffin wax, animal wax, plant wax, or synthetic high-molecular material. Its advantages are no irritation to people, and high output rate and effect.
Owner:王立峰
High-density dimethyl fumarate enteric-coated granules and preparation method thereof
The invention discloses high-density dimethyl fumarate enteric-coated granules and a preparation method thereof. The density of the high-density dimethyl fumarate enteric-coated granules is 1.0g / mL or higher, or is 1.3g / mL or higher, or is 1.6g / mL or higher. Preparation size of the high-density dimethyl fumarate enteric-coated granules is small; the high-density dimethyl fumarate enteric-coated granules are convenient for administration, and are especially suitable for patients, elders, and children with swallowing difficulty, and are capable of increasing patient compliance; preparation content uniformity is high; rapid release is realized; stability is high; and the preparation method is simple, and is suitable for industrialized production.
Owner:SUNSHINE LAKE PHARM CO LTD
Dimethyl fumarate enteric-coated pellet and preparation method thereof
ActiveCN104523602AQuality improvementRapid dissolutionOrganic active ingredientsNervous disorderEnteric coated pelletsIncreasing weight
The invention provides a dimethyl fumarate enteric-coated pellet. The dimethyl fumarate enteric-coated pellet comprises a core, an intermediate coating layer and an enteric layer, wherein the coating material of the intermediate coating layer is copovidone; by calculating in percentage by weight with respect to the core, the increased weight of the intermediate coating layer is 4%-40%; the enteric-coated pellet can be further filled with a capsule so as to be prepared into a capsule, or mixed with other auxiliary materials so as to be prepared into a tablet, or mixed with other auxiliary materials so as to be prepared into a suspension. Even the weight of the intermediate coating layer is increased, the medicine in the prepared enteric-coated pellet still can retain a high release rate. The preparation method is simple and feasible, and is suitable for industrial production.
Owner:SUNSHINE LAKE PHARM CO LTD
Sweet sorghum haulm dry-type long term storing method
InactiveCN101248726AControl lossReduce energy consumptionAgriculture tools and machinesHarvested fruit hanging devicesHydrogenEnergy expenditure
The invention relates to a dry-typed long-term storage method for sweet sorghum stems and belongs to the technical field of agriculture. The storage method crashes the collected sweet sorghum stems into particles by a kneading grinder, evenly mixes dimethyl fumarate or trichloroisocyanuric hydrogen uric acid, dries and places the mixture in drying and ventilation position to carry out long-term storage. The storage method can acquire long-term and effective storage effect; by mixing dimethyl fumarate or trichloroisocyanuric hydrogen uric acid, the loss of effective sugar content of the sweet sorghum in the particles of sweet sorghum stems can be minimized in the process of drying. The storage method has the advantages of good storage effect for sweet sorghum stems, low consumption of production capacity and simple technology, which can provide annual raw material supply for the production of bio-ethanol prepared by sweet sorghum stems.
Owner:SHANGHAI JIAO TONG UNIV
Special cherry preservative
InactiveCN104489069AReduce adhesion rateResidue reductionFruit and vegetables preservationBiotechnologyBenzoic acid
The present invention discloses a special cherry preservative which is composed of the following components (parts by weight): 22 parts of tea leaves, 23 parts of propolis, 22 parts of dried tangerine peels, 9 parts of chitosans, 20 parts of lotus leaves, 4 parts of butylated hydroxy anisole, 6 parts of benzoic acids, 7 parts of propyl gallate, 7 parts of vitamin E, 8 parts of vanilla amide, 11 parts of rosemary, 10 parts of salvia japonica, 9 parts of sorbitols, 10 parts of maltitols, 4 parts of xylitols, 18 parts of sesame oil, 20 parts of rice bran oil, 3 parts of cephalins, 3 parts of polylysines, 3 parts of cinnamic acids, 3 parts of beta-cyclodextrins, 2 parts of sodium diacetate, 2 parts of sorbic acid, 6 parts of glycerol monocaprylate and 5 parts of dimethyl fumarate. The special cherry preservative can effectively reduce adhesive rate of the preservative to achieve lower residues, at the same time the toxicity of the preservative is much lower than the existing commercial products, and thus the preservative is suitable for the need of a large-scale industrial production.
Owner:LIUZHOU TIANZI HORTICULTURE
Domestic fowl auxin containing composite vitamins
InactiveCN1429595APrevent mildew and oxidationReasonable dietAnimal feeding stuffAccessory food factorsBiotechnologyVitamin C
An auxin containing multi-vitamines for domestic fowl is composed of soybean powder, wheat flour, soybean oil and additive. Said additive consists of 7 components including multi-vitamines, xylanase,proteinase, dimethyl fumarate, etc.. The said multi vitamines comprise 11 active components including VA, beta-carotin, VD, VC, VE, etc..
Owner:黄文武
Dimethyl fumarate particles and pharmaceutical compositions thereof
ActiveUS20190070143A1Promote absorptionReduce releasePowder deliveryOrganic active ingredientsDiseasePharmaceutical drug
The present invention provides dimethyl fumarate (DMF) particles and methods of preparing the DMF particles. Also provided is DMF coated particles comprising DMF particles coated with an enteric coating. The invention also provides various dosage forms and methods of treating a disease or disorder (e.g., multiple sclerosis).
Owner:BIOGEN MA INC
Special onion preservative
InactiveCN104489067AReduce adhesion rateResidue reductionFruit and vegetables preservationBiotechnologyRice bran oil
The present invention discloses a special onion preservative which is composed of the following materials (parts by weight): 22 parts of tea leaves, 23 parts of propolis, 22 parts of dried tangerine peels, 19 parts of konjac, 19 parts of forsythia suspensa, 9 parts of chitosans, 20 parts of lotus leaves, 4 parts of butylated hydroxy anisole, 7 parts of vitamin E, 8 parts of vanilla amide, 11 parts of rosemary, 10 parts of salvia japonica, 9 parts of sorbitols, 10 parts of maltitols, 4 parts of xylitols, 18 parts of sesame oil, 20 parts of rice bran oil, 3 parts of cephalins, 3 parts of polylysines, 3 parts of cinnamic acids, 3 parts of beta-cyclodextrins, 2 parts of sodium diacetate, 2 parts of sorbic acid, 6 parts of glycerol monocaprylate and 5 parts of dimethyl fumarate. The special onion preservative can effectively reduce adhesive rate of the preservative to achieve lower residues, at the same time the toxicity of the preservative is much lower than the existing commercial products, and thus the preservative is suitable for the need of a large-scale industrial production.
Owner:LIUZHOU TIANZI HORTICULTURE
Special antistaling agent for litchi
InactiveCN104489064AReduce adhesion rateResidue reductionFruit and vegetables preservationBiotechnologyBenzoic acid
The invention discloses a special antistaling agent for litchi. The special antistaling agent comprises the following components by weight: 22 parts of tea leaf, 23 parts of propolis, 19 parts of fructus forsythia, 9 parts of chitosan, 20 parts of lotus leaf, 4 parts of butylated hydroxyanisole, 6 parts of benzoic acid, 7 parts of propyl gallate, 7 parts of vitamin E, 8 parts of vanilla amide, 11 parts of rosemary, 10 parts of sage, 9 parts of sorbitol, 10 parts of maltitol, 4 parts of xylitol, 18 parts of sesame oil, 20 parts of rice bran oil, 3 parts of cephalin, 3 parts of polylysine, 3 parts of cinnamic acid, 3 parts of beta-cyclodextrin, 2 parts of sodium diacetate, 2 parts of sorbic acid, 6 parts of mono-caprylin glycerate and 5 parts of dimethyl fumarate. The special antistaling agent for litchi provided by the invention has the beneficial effects of capability of effectively reducing the adhesive rate of the antistaling agent, low residue, much lower toxicity compared with conventional commercial products and capacity of meeting the need of large-scale industrial production.
Owner:LIUZHOU TIANZI HORTICULTURE
Novel method for enhancing efficiency of human T cells infected by slow-viruses carrying CAR (chimeric antigene receptor) genes
The invention relates to a novel method for enhancing the efficiency of infecting human T cells by slow viruses carrying CAR (chimeric antigene receptor) genes. A CAR-T technology is regarded as a technology for most possibly curing tumors; although the technology has breakthrough, bottleneck problems still existing in the aspect of preparation of CAR-T cells cannot be solved, for example, the innate immune response of T cells can enable the efficiency of infecting the T cells by the slow viruses carrying CAR genes to be low, so that the CAR-T cells are low in preparation efficiency and high in cost. For the problem of improving the efficiency of infecting the T cells by the slow viruses carrying CAR genes, the applicant conducts a series of experiments and improvement and discovers that the infection efficiency of the CAR slow viruses can be remarkably improved when the T cells are treated by DMF (dimethyl fumarate). The novel method has guiding significance and application values inthe aspects of greatly improving the preparation efficiency of the CAR-T cells, shortening the in vitro amplification time of the CAR-T cells, lowering the production cost of a CAR-T therapeutic method and the like.
Owner:XUZHOU MEDICAL UNIV
Cinnabar coloring paint
InactiveCN105219265AImprove adhesionGuaranteed bonding performancePolyurea/polyurethane coatingsCinnabarOctamethylcyclotetrasiloxane
The invention provides cinnabar coloring paint which is good in adhesion. After a cinnabar painting is colored, the paint can be well attached to the surface of the cinnabar painting and not prone to peeling off. Meanwhile, cured high-aluminum powder, modified nanowhisker materials, dimethyl fumarate, polyurethane resin, polytetrafluoroethylene, zinc stearate, dibutyl phthalate, silicone macromonomer and a white oil component are added. Adhesion of the cinnabar coloring paint is guaranteed, meanwhile, gaps between all colored substances of the cinnabar coloring paint are small, the outer surface of the colored part of the cinnabar painting forms a smooth curved face, and the cinnabar painting looks natural.
Owner:GUIZHOU WANSHAN DC DANYUAN CINNABAR CRAFTS CO LTD
Steel derusting/phosphating solution
InactiveCN104087926AGood rust removal effectAvoid corrosionMetallic material coating processesO-Phosphoric AcidPhosphate
The invention discloses a steel derusting / phosphating solution which is prepared from the following raw materials: 80-85 parts of phosphoric acid, 32-35 parts of hydrochloric acid, 12-15 parts of tartaric acid, 8-12 parts of ammonia water, 6-8 parts of carboxylic acid, 5-6 parts of stearic acid, 4-5 parts of ferric oxide, 6-7 parts of aluminum hydroxide, 7-8 parts of zinc powder, 5-6 parts of zinc hydroxide, 2-3 parts of anhydrous cupric sulfate, 5-6 parts of dimethyl fumarate, 3-5 parts of silicon oil, 4-6 parts of formic acid, 5-6 parts of carrageenin, 5-6 parts of glycerol, 3-5 parts of iron powder, 3-6 parts of copperas powder, 5-6 parts of oxalic acid, 3-5 parts of succinic acid, 3-6 parts of thiocarbamide and 3-5 parts of disodium edetate. The steel derusting / phosphating solution has favorable derusting effect, can form an anticorrosive coating on the metal surface, especially can treat the rusty steel surface to remove rust, and forms a smooth and compact phosphate coating on the treated metal surface, thereby achieving the effect of preventing metallic corrosion.
Owner:周彩球
Pharmaceutical composition containing dimethyl fumarate for administration at a low daily dose
InactiveUS20160206587A1Induces immune modulationHigh activityBiocideOrganic active ingredientsDiseasePharmaceutical formulation
The present invention relates to pharmaceutical compositions containing dimethyl fumarate (DMF), More specifically, the present invention relates to a pharmaceutical composition for oral use in treating hyperproliferative, inflammatory or autoimmune disorders by administering a low daily dosage in the range of 410 mg±5% or 400 mg±5% dimethyl fumarate, wherein the pharmaceutical formulation is in the form of an erosion matrix tablet.
Owner:BIOGEN SWISS MFG GMBH
Dimethyl fumarate (DMF) for prevention or treatment of gout, acne, diabetes, vitiligo and/or pyoderma gangrenosum
A compound specified by formula (I), in particular dimethylfumarate (trans-1,2-ethylenedicarboxylic acid dimethyl ester) is provided for use in prevention or therapy of gout, acne, pyoderma gangrenosum, Vitiligo, cardiovascular disease, metabolic syndrome, diabetes and / or complications of diabetes. Also provided are a dosage form comprising said compound and a method of treatment comprising administration of said compound to a patient in need thereof.
Owner:UNIV ZURICH
Binary particle retention system suitable for unbleached chemical pulp
InactiveCN111826997ASolve technical problems that are difficult to apply to unbleached chemical pulpImprove retention and drainage performancePaper/cardboardInorganic compound additionCelluloseMonocalcium phosphate
The invention provides a binary particle retention system suitable for unbleached chemical pulp. According to the technical scheme, aiming at the physical property characteristics of unbleached chemical pulp, the components of a particle retention system are improved. Specifically, the system omprises the following components in parts by weight: 20-25 parts of polyacrylamide, 12-16 parts of kaolin, 8-10 parts of terephthalic acid, 4-6 parts of diatomite, 2-4 parts of sodium carboxymethyl cellulose, 2-4 parts of sodium hyaluronate, 1-3 parts of chitosan, 1-3 parts of monocalcium phosphate, 1-3parts of maleic acid and 1-3 parts of dimethyl fumarate. A conventional formula of a cationic polymer and an inorganic anionic colloid is abandoned, polyacrylamide and kaolin are used as core components, components such as terephthalic acid, diatomite and sodium carboxymethyl cellulose are added, and the particle retention system is constructed in a compounding mode. The system is particularly suitable for unbleached chemical pulp, the retention and drainage effects are remarkably improved, and the system has outstanding technical advantages.
Owner:淄博圣泉纸业有限公司
Who we serve
- R&D Engineer
- R&D Manager
- IP Professional
Why Patsnap Eureka
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com