8642 results about "Methyl 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.

A pasteurization or sterilization process reduces fouling of a food or beverage composition containing protein during the heat treatment. An antifouling agent is added to the food or beverage composition that is selected from hydroxypropylcellulose (HPC) with a hydroxypropyl molar substitution of greater than 3.0 and a weight average molecular weight (Mw) as measured by SEC of greater than 350,000 Dalton, methylhydroxypropylcellulose (MHPC) with a methoxyl content of greater than 17% and a hydroxypropyl content of greater than 3%, methylcellulose (MC) with a methoxyl content greater than 17% and a viscosity in water at ambient temperatures and a concentration of 2% of greater than 1,000 cps, or mixtures thereof, This food or beverage composition is then heated in a first heat exchanger at a temperature between 50 and 100° C. for a time of from about 2 seconds to 30 minutes for pasteurization or it is further heated to sterilization temperatures before being packaged out or further processed. The improvements of this process is that the heat exchangers are fouled at least 10% by weight less or run-time increased at least 10% as compared to when heat-treating a similar food or beverage composition without the antifouling agent.

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.)

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.

The invention relates to a conductive heating material. The material comprises a substrate and a conductive heating layer evenly adhered to the substrate, wherein the conductive heating layer is made from a conductive heating coating material; the conductive heating coating material comprises a conductive heating base material and a bonding agent; the conductive heating base material is selected from natural graphite, artificial graphite and conductive carbon black; the bonding agent is selected from acrylic resin, epoxy resin, polyurethane resin, glutin, carboxymethyl cellulose, polyvinyl alcohol, and the like; and the substrate can adopt paper in a plurality of practical implementation modes. The conductive heating material can be used to make the conductive heating floor; the surface temperature of the floor can reach 15 to 70 DEG C within 5 minutes after the floor is energized with 220V voltage; moreover, the floor can maintain stable temperature for a long time. Therefore, the conductive heating floor can be used to replace the prior ground heating system and has low cost, reliable operation, energy saving, environmental protection and convenient maintenance and replacement.

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.

A composition for oral delivery of a poorly absorbed drug is disclosed. The composition includes the drug, an enhancer for increasing absorption of the drug through the intestinal mucosa, a promoter, which alone does not increase absorption of the drug through the intestinal mucosa, but which further increases the absorption of the drug in the presence of the enhancer, and optionally a protector for protecting the drug from physical or chemical decomposition or inactivation in the gastrointestinal tract. Illustrative enhancers include sucrose fatty acid esters, and illustrative promoters include aminosugars and amino acid derivatives, such as poly(amino acids). Illustrative protectors include methylcellulose, poly(vinyl alcohol), and poly(vinyl pyrrolidone).

The invention belongs to a biodegradation liquid mulching film and the preparation method thereof. The invention prepares polyvinyl alcohol into an aqueous solution with mass fraction of 5-10 percent; carboxymethyl cellulose is also prepared into an aqueous solution with mass fraction of 5-10 percent; starch with mass fraction of 5-10 percent is added into a reactor having an agitator, a condenser and a thermometer and is gelatinized for 30 minutes under 75-85 DEG C and then becomes transparent and slabby starch paste, the prepared polyvinyl alcohol solution and carboxymethyl cellulose solution are then added into the reactor, and surfactant and plasticizer are also added into the solution. The PH value is set as 2-4, cross-linking agent is then added, and the biodegradation liquid mulching film is obtained after 1-2-hour reaction under 85-90 DEG C. The film can be sprayed to the land surface through spray method after being thinned up.

The invention discloses paper sepiolite sustained-release antibacterial cat litters which comprise the following raw material components in percentage: 60 to 70 percent of recycled paper, 10 to 5 percent of modified sepiolite, 3 to 5 percent of peanut shell, 5 to 8 percent of plant ash, 4 to 6 percent of super absorbent resin and 5 to 10 percent of carboxymethyl cellulose. In the invention, the sepiolite is soaked in sodium phosphate after being activated at a high temperature and adsorption of the sepiolite on Ag<+> and Cu<2+> can be improved, so that an antibacterial effect of the sepiolite is improved; moreover, due to a sustained-release function of the sepiolite, the paper sepiolite sustained-release antibacterial cat litters can sterilize for a long time, have good stability and have an obvious antibacterial effect. The cat litters prepared by the invention are beneficial for improving the environment in a cat litter box, preventing breeding of bacteria on small cats and ensuring health of a master and pets.

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 sterile polymerized covering for a wound surface-medical wet dressing for a burn wound, a preparation method of the dressing, and application. The dressing comprises the following components: 10 to 30g of chitosan, 30 to 80g of polyving akohol, 5 to 10g of alginate, 5 to 15g of isomaltose hypgather, 2 to 6g of carbomer 940, 2 to 5g of gelatin, 5 to 10g of sodium carboxymethylcellulose, 10 to 30g of glycerol, and 0.01 to 0.2g of menthol; 15 to 60g of condensed tannin which is remarkable in treatment can be selectively added; and a skin penetration enhancer or an appearance conditioning agent also can be selectively added. The dressing can be prepared into an irregular dressing in order to be suitable for the wound surfaces in irregular and special positions and also can be prepared into a solid plate-shaped dressing which can be shorn at random. According to the sterile polymerized covering dressing for the wound surface, the freezing and thawing technology and the irradiating technology are combined and cross-linked to realize the preparation, and the defects of the prior art can be overcome. The dressing is high in biocompatibility, free from toxicity and sensitization and high in mechanical strength and comfort level, is out of adhering during the process of being replaced after being attached for a long time, and is a nonantigenic protective barrier which has the effect of resisting and inhibiting bacteria.

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 present invention relates to a silicone carbide foamed ceramic filter. It is characterized by that said silicone carbide foamed ceramic filter is made up by adopting following steps: using silicone carbide, aluminium oxide, silicone dioxide and talcum to form ceramic powder, adding carboxyl methyl cellulose, polyvinyl alcohol, silica sol and water to prepare slurry, using soft polyurethane foam plastics as carrier, impregnating said carrier with above-mentioned slurry, extruding to obtain blank material, drying and sintering so as to obtain the invented silicone carbide foamed ceramic filter. The invention foamed ceramic filter has good high-temperature stability in the molten iron and copper solution, does not contaminate alloy and possesses good filtering and adsorption efficiency for removing oxide accompanying impurity and flux accompanying impurity from molten metal, so that its filtering purification effect is good.

The present invention relates to a aluminium oxide foamed ceramic filter for filtering and purifying molten aluminium, aluminium alloy and copper. Said invention uses aluminium oxide, silicon dioxide, talcum and kaoline clay to form ceramic powder, and adds carboxyl methyl cellulose, polyvinyl alcohol, silica sol and water to prepare slurry, uses soft polyurethane foamed plastics as carrier and makes them undergo the process of impregnating said carrier with slurry, extruding to obtain blank material, drying and sintering so as to obtain the invented aluminium oxide foamed ceramic filter. Said foamed ceramic filter has good high-temperature stability in the molten aluminium alloy, does not contaminate alloy and possesses good filtering and adsorption efficiency for removing oxide impurity and flux impurity form molten metal, so that it can obtain obvious filtering and purification effect.

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.

Improved apparatus is disclosed for carrying out axially illuminated laser induced fluorescence whole-column imaging detection in the capillary isoelectric focusing of proteins. The separation capillary was made of low refractive index Teflon conditioned with methylcellulose to reduce electroosmotic flow and a small amount of high refractive index organic solvent (glycerol) was added to the sample mixture. It was found that an axially directed laser excitation beam was propagated essentially with total internal reflection, so that minimum interference arose from stray light or from scattering light originating from the wall of the capillary. With the naturally fluorescent protein R-phycoerythrin, a concentration detection limit LOD 10⁻¹¹ M or mass LOD 10⁻¹⁷ Mo was obtained.