2446 results about "Hydroxypropylmethyl cellulose" patented technology

Gelled biopolymer based foams are disclosed. The gelled foams comprise a cross-linked biopolymer, preferably alginate; optionally, a foaming agent such as hydroxy propyl methyl cellulose; and a plasticizer, preferably glycerin sorbitol, or a mixture thereof, that forms the predominant portion of the gelled foam. The foams are soft and pliable and have high absorbency. They are used as wound dressing materials, controlled release delivery systems, cell culture, barrier media for preventing tissue adherence, and bioabsorbable implants. They also have various personal care applications, especially in oral hygiene, and can be used in food applications.

Compositions comprising a glycosaminoglycan (e.g., a hyaluronan, hyaluronic acid, hyaluronate, sodium hyaluronate, dermatan sulfate, karatan sulfate, chondroitin 6-sulfate, heparin, etc.) in combination with at least one component selected from; i) polyglycols (e.g., polyethylene glycol), ii) long chain hydroxy polyanionic polysaccharides (e.g., dextran, sodium alginate, alginic acid, propylene glycol alginate, carboxymethyl cellulose and carboxyethyl cellulose, hydroxyl ethyl starch, hydroxyl propyl methyl cellulose, hydroxy propyl ethyl cellulose, hydroxy propyl cellulose, methyl cellulose, polylysine, polyhistidine, polyhydroxy proline, poly ornithine, polyvinyl pyrolidone, polyvinyl alcohol, chitosan, etc.) and iii) long chain Nitrogen containing polymers (e.g., Polylysine, Polyvinylpyrrolidone, and polyvinyl alcohol). The invention also includes methods for using such compositions (e.g., as substance delivery materials, tissue fillers or bulking agents, as moistening or hydrating agents, etc.)

The abuse potential of a bioavailable drug such as an opiate analgesic agent is reduced and its duration of action is extended by converting it to a poorly absorbed ester prodrug or other prodrug derivative prior to formulation. Unlike many existing sustained release formulations of active pharmaceutical agents wherein an active pharmaceutical agent can be released by chewing, crushing, or otherwise breaking tablets or capsule beads containing the active pharmaceutical agent, such mechanical processing of tablets or capsule beads containing a prodrug of this invention neither releases the active drug nor compromises the controlled conversion of prodrug to drug. Moreover, tablets and capsule beads containing prodrugs of this invention or other drugs can be formulated with a sufficient amount of a thickening agent such as hydroxypropylmethylcellulose or carboxymethylcellulose to impede inappropriate intravenous and nasal administration of formulations that are not indicated for these modes of administration.

An extended release dosage composition of pharmaceutically active substances that have a water contact angle (θ) such that cos θ is between +0.9848 and −0.9848 presented as a matrix tablet containing the said pharmaceutically active substances, with/without suitable pharmaceutical excipients in intimate mixture with two groups of intelligent polymers having opposing wettability characteristics, one demonstrating a stronger tendency towards hydrophobicity and the other a stronger tendency towards hydrophilicity, the polymer combination being between the ratios of 1:50 and 50:1 amounts effective to control the release of said pharmaceutically active substances in a mathematically predictable manner, wherein the polymer demonstrating a stronger tendency towards hydrophobicity is not less than 5% wt/wt and preferably between 5-70% wt/wt of the final formulation composition. The intelligent polymers being ethylcellulose (EC) as a more strongly hydrophobic and hydroxyethylcellulose (HEC) and/or hydroxypropyl methylcellulose (HPMC) as more strongly hydrophilic (the ratio of HEC to HPMC being between 1:100 and 100:1). The matrix tablet is optionally coated with an enteric coat, 0-5%-15% wt/wt to prevent the initial burst effect seen in such systems and to impart gastrointestinal tract (GIT) “stealth” characteristics especially in the presence of food.

An apparatus and method is disclosed for forming a compacted powder slug coated with a film. The powder, e.g. of a medicament, is compacted and enrobed to produce compacted powder slugs by preferably mechanically compacting a powder and forming a film of a material, preferably hydroxy propyl methyl cellulose, by vacuum or pressure differential, about the surface of the powder thus compacted.

A hot-melt extruded composition having finely divided drug-containing particles dispersed within a polymeric and/or lipophyllic carrier matrix is provided. The carrier softens or melts during hot-melt extrusion but it does not dissolve the drug-containing particles during extrusion. As a result, a majority or at least 90% wt. of the drug-containing particles in the extrudate are deaggregated during extrusion into essentially primary crystalline and/or amorphous particles. PEO is a suitable carrier material for drugs insoluble in the solid state in this carrier. Various functional excipients can be included in the carrier system to stabilize the particle size and physical state of the drug substance in either a crystalline and/or amorphous state. The carrier system is comprised of at least one thermal binder, and may also contain various functional excipients, such as: super-disintegrants, antioxidants, surfactants, wetting agents, stabilizing agents, retardants, or similar functional excipients. A hydrophilic polymer, such as hydroxypropyl methylcellulose (HPMC E15), polyvinyl alcohol (PVA), or poloxamer, and/or a surfactant, such as sodium lauryl sulfate (SLS), can be included in the composition. A process for preparing the extrudate is conducted at a temperature approximating or above the softening or melting temperature of the matrix and below the point of solubilization of drug-containing particles in the carrier system, and below the recrystallization point in the case of amorphous fine drug particles.

Disclosed herein are compositions comprising cyclodextrin derivatives and prednisolone and prodrugs thereof, and methods related thereto. The use of soluble polyanionic polymers such as hydroxypropylmethylcellulose and others in relation to these compositions is also disclosed. Delivery of these prednisolone-related compounds to the back of the eye via topical ophthalmic administration is also disclosed.

The invention relates to a novel pharmaceutical sustained release formulation of guaifenesin and at least one additional drug ingredient. The formulation may comprise a hydrophilic polymer, preferably a hydroxypropyl methylcellulose, and a water-insoluble polymer, preferably an acrylic resin, in a ratio range of about one-to-one (1:1) to about nine-to-one (9:1), more preferably a range of about three-to-two (3:2) to about six-to-one (6:1), and most preferably in a range of about two-to-one (2:1) to about four-to-one (4:1) by weight. This formulation capable of providing therapeutically effective bioavailability of guaifenesin for at least twelve hours after dosing in a human subject. The invention also relates to a modified release product which has two portions: a first portion having an immediate release formulation of guaifenesin and a second portion having a sustained release formulation of guaifenesin, wherein one or both portions has at least one additional drug ingredient. The modified release product has a maximum guaifenesin serum concentration equivalent to that of an immediate release guaifenesin tablet, and is capable of providing therapeutically effective bioavailability of guaifenesin for at least twelve hours after dosing in a human subject.

The invention discloses a slowly-released compound acidifier for poultry and livestock feed, a preparation method thereof and feed containing the same. The compound acidifier comprises the following compositions in part by weight: 30 to 80 parts of complex organic acid, 15 to 50 parts of supplementary materials and 5 to 20 parts of coating agents. The complex organic acid is citric acid, fumaric acid, malic acid, lactic acid, linoleic acid, crataegolic acid, ursolic acid, chlorogenic acid, glycyrrhizic acid and oleanolic acid, and the supplementary materials are silicon dioxide, hydroxypropyl methylcellulose and ethyl cellulose. The acidifier is scientifically proportioned, has strong efficiency and is long-acting and slow-releasing, nutrients in the feed are free from being damaged, the acidifier has good fluidity and is easy to be uniformly mixed with the feed, the digestive absorption of nutrients can be promoted, the conversion rate of the feed can be improved, the productivity of poultry and livestock can be improved, the time for domestic animals for sale can be effectively shortened, the health of gastrointestinal mucosa of the animals can be protected, the immunologic function of the animals can be strengthened, and diseases can be prevented.

An exemplary printable composition of a liquid or gel suspension of diodes comprises a plurality of diodes, a first solvent and/or a viscosity modifier. In other exemplary embodiments a second solvent is also included, and the composition has a viscosity substantially between about 100 cps and about 25,000 cps at about 25° C. In an exemplary embodiment, a composition comprises: a plurality of diodes or other two-terminal integrated circuits; one or more solvents comprising about 15% to 99.9% of any of N-propanol, isopropanol, dipropylene glycol, diethylene glycol, propylene glycol, 1-methoxy-2-propanol, N-octanol, ethanol, tetrahydrofurfuryl alcohol, cyclohexanol, and mixtures thereof; a viscosity modifier comprising about 0.10% to 2.5% methoxy propyl methylcellulose resin or hydroxy propyl methylcellulose resin or mixtures thereof; and about 0.01% to 2.5% of a plurality of substantially optically transparent and chemically inert particles having a range of sizes between about 10 to about 50 microns.

A cleaning composition containing: (a) from about 1.0 to about 15.0% by weight of a monoethanolamine salt of an alkyl sulfonic acid; (b) from about 3 to about 50% by weight of a C₆-C₁₄ methyl ester primary solvent; (c) from about 1.0 to about 15.0% by weight of a short-chain cosurfactant; (d) from about 1 to about 25% by weight of a polar solvent having a water solubility of from about 1 to 5 g/100 ml; (e) up to about 10.0% by weight of a nonionic surfactant; (f) from about 0.05 to about 3.0% by weight of a thickening agent selected from the group consisting of hydroxypropyl cellulose, hydroxypropyl methylcellulose, and mixtures thereof; and (g) remainder, water, all weights being based on the total weight of the composition, and wherein the composition is terpene-free.

The invention provides a grinding aid for slag cement. The grinding aid provided by the invention comprises the following components by weight percent: 5-20wt% of alcohol amine compound, 0.1-5wt% of hydroxypropyl methyl cellulose, 5-30wt% of polyhydric alcohol compound, 0.5-10wt% of sodium hexametaphosphate, 1-10wt% of soluble sulfate, 1-8wt% of sodium dodecyl benzene sulfonate and the balance of water. In the grinding agent provided by the invention, the hydroxypropyl methyl cellulose is beneficial for stimulating the activity of the slag, forming stable hydrous products in the reaction process, improving the property of the cement, improving the strength of the cement and improving the stability of the liquid grinding aid at the same time. Experimental result shows that the grinding aid is capable of increasing the breaking strength of the cement to 9.5MPa and increasing the compressive strength to about 55MPa.

The invention discloses a cementitious capillary crystalline waterproofing agent, which contains the following raw materials in parts by weight: 50 parts of Portland cement; 25 parts of quartz sand; 9 parts of siliceous dust; 3 parts of calcium hydroxide; 2 parts of sodium bentonite; 1 part of kieselguhr; 3.9 parts of instant sodium silicate; 2.5 parts of aluminum potassium sulfate; 0.3 parts of zinc fluosilicate; 0.20 parts of sodium polyacrylate; 0.2 parts of hydroxypropyl methyl cellulose; 2 parts of zinc stearate; 0.5 parts of naphthalene water reducer; 0.2 parts of sugar lime; 0.1 parts of citric acid; and 0.1 parts of antifoaming agent. After the raw materials are weighed according to the proportions, the raw materials are ground into particles with grain size more than or equal to 200-mesh sieve in a ball mill to obtain the finished product. The invention has the advantages that the cost is low, the anti-permeability is good, the self-healing performance is good, the bonding power is strong, the steel bar corrosion is prevented, no toxicity and no harmfulness are caused and the construction is easy.

A composition for manufacture of hard hydroxypropyl methyl cellulose capsules comprising a film forming material of hydroxypropyl methyl cellulose having a methoxy content of 27.0-30.0% (w/w), and a hydroxypropoxy content of 4.0 - 7.5% and as a 2% weight solution, a viscosity of 3.5 - 6.0 cPs at 20 DEG C, dipping compositions, process for manufacture of hard hydroxypropyl methyl cellulose capsules according to a dip coating process and hard capsule shells.

The invention relates to a self-healing polymer cement waterproofing coating. The self-healing polymer cement waterproofing coating comprises a liquid material component A and a powder material component B in a weight ratio of 1:(1.0-1.2), wherein the liquid material component A comprises the following components in percentage by weight: 15 to 50 percent of ethylene-vinyl acetate copolymer emulsion, 35 to 65 percent of crylic acid emulsion, 0.2 to 0.8 percent of acrylic resin, and 14.20 to 19.80 percent of water. The powder material component B comprises the following components in percentage by weight: 19.50 to 37.50 percent of low alkali rapid hardening sulphate aluminium cement, 62.10 to 80.35 percent of quartz sand, 0.05 to 0.15 percent of hydroxypropyl methyl cellulose, 0.05 to 0.10 percent of water reducing agent, and 0.05 to 0.15 percent of antifoaming agent. The waterproofing coating is bonded firmly, has high tensile strength, a good permeability resistance effect, is not easy to crack and has the function of repairing fine cracks.

The invention discloses an acidified zeolite. The technical scheme is as follows: the acidified zeolite is composed of zeolite, attapulgite clay, magnesia, hydrochloric acid, instant sodium silicate, polyvinyl alcohol, hydroxypropyl methylcellulose and sodium carbonate. The acidified zeolite materials are input into a mill and milled, and the milled powder is the acidified zeolite. The production method of acidified red mud adopts acidification before composite proportioning, thereby avoiding the chemical reaction between the sulfuric acid and the instant sodium silicate, polyvinyl alcohol, hydroxypropyl methylcellulose and sodium carbonate; and the acidified zeolite can effectively remove ammonia, iron, fluorine, phosphides and micro pollutants in domestic sewage, and can be used for removing or recovering heavy metal ions and treating radioactive waste. The acidified rear has the characteristics of favorable thixotropy, favorable heat stability, favorable plasticity and favorable binding property, and is suitable for producing drying agents, adsorptive separation agents, molecular sieves, catalysts, defluorination soil improvers, deodorizers and firefighting products.

The invention relates to external wall flexible waterproof putty powder and a preparation method thereof. The flexible waterproof putty powder consists of the following components according to weight percentage: 22% of cement, 20.5% of heavy calcium carbonate, 15% of quartz powder, 8% of diatomite, 8% of talcum powder, 5% of kaolin, 5% of ash calcium, 3% of ethylene oxide, 2% of a retarder, 0.3% of HPMC, 3% of latex powder, 2% of wollastonite powder, 2% of a catalyst, 0.4% of a dehydrating agent, 0.5% of wood fiber, 0.3% of starch ether and 3% of other fillers, wherein the particle size of the heavy calcium carbonate powder is controlled as follows: d97 is smaller than 10 microns, d50 is 1.5 microns, the whiteness is greater than 95%, and the CaCO3 content is greater than or equal to 98%; the quartz powder with 1-3 microns accounts for 57%, 5-8 microns for 22%, 9-15 microns for 13%, and 15-18 microns for 8%; the diatomite is 260-300 mesh; for kaolin, d97 is about 15 microns, d50 is about 2 microns, and the whiteness is greater than 92%; the retarder includes 72% of a citric acid retarder and 28% of a sodium polyphosphate retarder; the length-diameter ratio of wollastonite powder is greater than 10; HPMC adopts hydroxypropyl methyl cellulose with the viscosity of 100,000. The external wall flexible waterproof putty powder has the characteristics of being white, fine and smooth, good in construction workability, high in strength, good in water resistance and anti-cracking.

A modified release pharmaceutical formulation includes about 30-70% N-(2-amino-4-(fluorobenzylamino)-phenyl)carbamic acid ethyl ester (retigabine), or a pharmaceutically acceptable salt, solvate or hydrate thereof, about 5-30% of a drug delivery matrix including hydroxypropylmethylcellulose (HPMC), and an enteric polymer. The pharmaceutical formulation produces a sustained plasma concentration of retigabine following administration to a subject for 4-20 hours longer than the time required for in vitro release of 80% of retigabine. The plasma concentration vs. time profile of this formulation is substantially flat over an extended period lasting for about 4 hours to about 36 hours. A method of treating a disorder characterized by nervous system hyperexcitability includes administering to a subject an effective amount of these pharmaceutical formulations.

The invention relates to an essence microcapsule and a preparation method and an application thereof. The essence microcapsule comprises a capsule core, and a slow release layer and a rapid release layer coating the capsule core in order, the capsule core comprises the material of a first fragrance substance, the slow release layer comprises at least one of Arabic gum, hydroxypropyl methyl cellulose, chitosan, polyvinyl alcohol, polyethylene glycol, ethyl cellulose, konjac glucomannan, gelatin, and pullulan polysaccharide, the rapid release layer comprises a second fragrance substance, and theflavors of the second fragrance substance and the first fragrance substance are constant. The fragrance lasting time of the essence microcapsule is long, the fragrance intensity is strong, and the fragrance explosiveness is good.

The instant invention provides a pharmaceutical composition comprised of a cholesterol absorption inhibitor and an HMG-CoA reductase inhibitor, one or more anti-oxidants, microcrystalline cellulose, hydroxypropyl methylcellulose, magnesium stearate and lactose. The composition need not contain ascorbic acid in order to obtain desirable stability.

A soft capsule comprising a wall derived from a multilayer film that comprises three layers. The layers are an innermost sealing plasticized hydroxypropyl methyl cellulose, an adhesion promoting layer of propylene glycol alginate and a barrier layer of sodium alginate.

The invention relates to a method for preparing a quick-hardened cement-based adhesive by utilizing refuse-incinerated fly ash, comprising the following steps of: (1) calcination of sulphoaluminate cement: raising the temperature of a sulphoaluminate cement raw material to 1,200-1,250 DEG C in the temperature rise speed of 20-30 DEG C/min, then preserving the temperature for 1-2h to form a sulphoaluminate cement clinker, and mixing the sulphoaluminate cement clinker with anhydrous gypsum to obtain the sulphoaluminate cement; and (2) preparation of the quick-hardened cement-based adhesive: blending the sulphoaluminate cement, quartz sand, pulverized fuel ash, hydroxypropyl methyl cellulose, re-dispersible rubber powder and fibers to obtain the quick-hardened cement-based adhesive. Comparedwith the prior art, the method can ensure the performance of the product and also can reduce serious environmental burden and processing cost which are caused by not utilizing the fly ash, desulfurized gypsum and the like.

The invention relates to a moisture-absorbing and perspiring anti-bacterial fabric and a preparation technology thereof. The moisture-absorbing and perspiring anti-bacterial fabric is blended and weaved by the following raw materials in parts by weight: 40 to 80 parts of bamboo fibers, 40 to 80 parts of long staple, 10 to 30 parts of ramie, 10 to 30 parts of coolmax fibers, 10 to 20 parts of corn fibers, 10 to 20 parts of Delight fibers, and 5 to 20 parts of Tancel, and then is treated by anti-bacterial finishing liquid; the anti-bacterial finishing liquid comprises 5 to 10 parts of chitosan, 5 to 10 parts of silk fibroin, 0.5 to 3 parts of butyl ricinoleate sodium sulfate, 0.5 to 3 parts of lemon acid, 0.5 to 2 parts of butyl methacrylate, 5 to 8 parts of dodecyl diphenyl ether sodium disulfonate, 5 to 10 parts of hydroxypropyl methyl cellulose, 5 to 10 parts of polyhexamethylene biguanidine, 5 to 15 parts of organosilicon quaternary ammonium salt, 3 to 8 parts of dodecyl trimethyl ammonium chloride, and 5 to 10 parts of water-based polyurethane. The moisture-absorbing and perspiring anti-bacterial fabric has the advantages that the anti-bacterial property is higher, the moisture-absorbing, perspiring, anti-pilling and air-ventilation properties are realized, the softness is realized, and the abrasion is resisted; the moisture-absorbing and perspiring anti-bacterial fabric is particularly suitable for being applied to the fields of underwear, overwear, sportswear and bedding articles.

The invention discloses an air-added brick produced by utilizing waste building rubbish and a method for processing the air-added brick. The air-added brick comprises the following raw materials in part by weight: 50 to 60 parts of waste building rubbish, 20 to 30 parts of urban road waste cement road slag, 5 to 8 parts of cement, 10 to 15 parts of ceramsite, 10 to 15 parts of shale, 5 to 10 parts of corundum mullite sand, 14 to 16 parts of quicklime, 4 to 5 parts of gypsum, 0.03 to 0.05 part of aluminum powder, 0.5 to 1 part of modified straw ash, 0.03 to 0.04 part of caustic soda, 0.3 to 0.5 part of hydroxypropyl methyl cellulose and 0.0008 to 0.0012 part of aluminum powder degreasing agent. By using waste as an ingredient of the air-added brick, environment pollution is effectively reduced, waste materials are recycled, the environment is protected; energy consumption is reduced; the air-added brick has higher heat insulation performance and sound insulation performance compared with the conventional air-added brick; and meanwhile, by optimizing a formula and the raw materials, the strength and the freezing resistance are obviously improved.

Discussed herein are pharmaceutical compositions containing Ibrutinib and processes for preparing them. The compositions may be utilized in the treatment of a variety of conditions including, without limitation, B-cell proliferative disorders such as non-Hodgkin lymphoma (diffuse large B cell lymphoma, follicular lymphoma, mantle cell lymphoma or burkitt lymphoma), Waldenstrom macroglobulinemia, plasma cell myeloma, chronic lymphocytic leukemia, lymphoma, or leukemia. These compositions are designed for oral ingestion. The compositions are contained within a capsule such as a standard or sprinkle or in a liquid formulation such as a suspension. In one embodiment, the pharmaceutical composition contains Ibrutinib, a salt, prodrug, or metabolite thereof, microcrystalline cellulose, croscarmellose sodium, sodium lauryl sulfate, and magnesium stearate. In another embodiment, the pharmaceutical composition contains Ibrutinib, a salt, prodrug, or metabolite thereof, microcrystalline cellulose, carboxymethylcellulose sodium, hydroxypropylmethylcellulose, citric acid monohydrate, disodium hydrogen phosphate, sucralose, sodium methyl parahydroxybenzoate, sodium ethyl parahydroxybenzoate, concentrated hydrochloric acid, sodium hydroxide, and water.

The present invention relates to a stable pharmaceutical composition for injection containing docetaxel and a method of preparing the same. More particularly, the present invention relates to a pharmaceutical composition for injection containing docetaxel having better storage stability than conventional medications, which is prepared by dissolving docetaxel, a water-insoluble compound, in distilled water after mixing it with cyclodextrin (CD) and a water-soluble polymer such as hydroxypropyl methylcellulose (HPMC), polyethylene glycol (PEG) or polyvinylpyrrolidone (PVP) and lyophilizing the mixture, and a method of preparing the same.

The invention discloses antibacterial mildew-proof high-strength whitewash mortar, which comprises the following components: silicate black cement, flyash, blast furnace slag, building gypsum, quartz sand, a nano antibacterial mildew preventive, a regulator, an inorganic gel, a retarder, an anti-cracking agent and re-dispersible gelatine powder. The nano antibacterial mildew preventive is nano zinc oxide with the fineness of 30nm; the regulator is hydroxypropyl methyl cellulose; the inorganic gel is sodium bentonite; the retarder is a retarder special for polyphosphate gypsum; the anti-cracking agent is lignocellulose; and the re-dispersible gelatine powder is polyvinyl acetate or ethylene resin. The mildew-proof whitewash mortar prepared according to the formula has the advantages of good mildew resistance and water resistance and extremely strong bonding strength; and after the whitewash mortar is prepared into plastering mortar, the brushed base plane has the advantages of no hollowness, no crack, excellent mildew-proof performance, strong adhesive property, high breaking strength and compression strength, and convenient construction simultaneously.

The invention relates to microcapsules and a preparation method thereof, particularly to tea polyphenol liposoluble microcapsules and a preparation method thereof, wherein a core material of the tea polyphenol liposoluble microcapsules comprises tea polyphenol and reduced glutathione, a mass ratio of the tea polyphenol to the reduced glutathione is 95-99:1-5, a wall material of the tea polyphenol liposoluble microcapsules is one or a plurality of materials selected from arabic gum, dextrin, corn syrup, ethyl cellulose, methylcellulose, and hydroxypropyl methylcellulose phthalate, and a mass weight ratio of the core material to the wall material is 1:1-4. The tea polyphenol liposoluble microcapsule preparation method comprises the following steps: respectively preparing a core material emulsion liquid and a wall material solution, adding the core material emulsion liquid to the wall material solution, carrying out high speed stirring, homogenizing, and carrying out spray drying to obtain the tea polyphenol liposoluble microcapsules. The tea polyphenol liposoluble microcapsules have characteristics of fine average particle size and slow tea polyphenol release, such that anti-oxidation and absorption utilization efficiency of the tea polyphenol are substantially improved.

The invention discloses a preparation method of a high-strength and antioxidant rare-earth-based smoke denitration catalyst. The preparation method of the high-strength and antioxidant rare-earth-based smoke denitration catalyst comprises the following steps: by taking titanium dioxide and montmorillonite as carriers and ammonium metatungstate, cerous nitrate and lanthanum nitrate as active components, mixing, ageing, kneading, forming, drying and roasting with the accompanying of auxiliary materials. The auxiliary materials comprise ammonia water, lactic acid, citric acid, stearic acid, glass fiber, wood pulp, hydroxypropyl methyl cellulose, polyoxyethylene, monoethanolamine and water. The product prepared by the method is separated under a high SO2 smoke condition, nitric oxide in the smoke can be decomposed; meanwhile, the purpose of removing mercury and dioxin can be achieved. According to the preparation method of the high-strength and antioxidant rare-earth-based smoke denitration catalyst, the rare earth elements, namely cerium and lanthanum are used as the active components, so that the addition amount of vanadium is reduced, the toxicity of the product is reduced or the product is non-toxic product, the pressure of the post treatment of the product is reduced; the environmental protection pressure is reduced; the product is environmentally friendly; the product can be widely used in the field of thermal power plants, glass factories and chemical plants.

The invention provides putty powder used for walls in a house. The putty powder comprises the following ingredients: ground calcium carbonate, sodium-base bentonite, 1788 powder of polyving akohol, hydroxypropyl methyl cellulose and talcum powder, besides, white cement or/and calcium hydroxide powder is/are added therein as a reinforcing material, and also, sodium hexametaphosphate powder and/or tourmaline powder are/is added in the product. The putty powder has excellent scraping construction performance, long-acting mould-proof performance and excellent dense degree of the putty coating as well as the function of releasing negative ions for a long time, can effectively adsorb various harmful substances in the air and purify the air, and has excellent environment-friendly performance.