441results about How to "Improve gelation" patented technology

A water soluble, biodegradable reverse thermal gelation system comprising a mixture of at least two types of tri-block copolymer components is disclosed. The tri-block copolymer components are made of a hydrophobic biodegradable polyester A-polymer block and a hydrophilic polyethylene glycol B-polymer block. The drug release and gel matrix erosion rates of the biodegradable reverse thermal gelation system may be modulated by various parameters such as the hydrophobic/hydrophilic component contents, polymer block concentrations, molecular weights and gelation temperatures, and weight ratios of the tri-block copolymer components in the mixture.

The present invention relates to methods of treating a subterranean formation with a composition including a compound made by a microorganism or a microorganism that can make the compound. Various embodiments provide methods of using compositions for treatment of subterranean formations including exopolysaccharides or microorganisms that can make exopolysaccharides under downhole conditions. In various embodiments, the present invention provides a method of treating a subterranean formation, including providing at least one exopolysaccharide by subjecting an extremophilic or extremotolerant microorganism to conditions such that the microorganism forms the exopolysaccharide, or by subjecting a microorganism genetically modified using an extremophilic or extremotolerant microorganism to conditions such that the microorganism forms the exopolysaccharide. The method can also include contacting a composition including the exopolysaccharide with a subterranean material downhole.

A pharmaceutic composition includes a pharmaceutically acceptable carrier, comprising a reverse thermally viscosifying polymer. The polymer includes a linear block copolymer, wherein at least one block comprises a poloxamer; and at least one block comprises a biocompatible polymer or oligomer, in an aqueous medium. The composition also includes an active agent which imparts a pharmaceutic or cosmetic effect. The composition viscosifies in response to an environmental stimulus. The composition is suitable for administration of the pharmaceutical agent across dermal, otic, rectal, vaginal, ophthalmic, esophageal and nasal mucosal membranes.

The invention discloses a preparing device of a shell-core functional material, which comprises a microfluidics integrated chip, a microfluidics drive device and a shell-core functional material collector; the microfluidics integrated chip comprises an outer phase input passage, a middle phase input passage, an inner phase input passage, a double emulsion generating micro structure, and a functional material output passage, and further comprises a bionic splitting array, a dielectrophoresis tuning micro unit, a liquid membrane curing micro unit, a microsphere external surface functionalized micro unit and a functional filler loading and homogenizing micro unit, which are arranged between the double emulsion generating micro structure and the functional material output passage. The preparing device can fully use the space of the microfluidics integrated chip, enables the chip to be compactly and reasonably configured and realizes the aim of fast and efficiently preparing the high quality shell-core functional material, thus greatly improving the preparing efficiency of the functional material under the conditions of ensuring degree of sphericity, concentricity and size uniformity of double emulsion, and realizing scaled and continuous production with excellent controllability.

The invention provides a preparation method for a starch bonding agent, which comprises the following steps of: performing crosslinking treatment on starch by adopting a crosslinker to form modified starch A, performing oxidation with sodium hypochlorite, esterification with butanedioic anhydride and treatment with a cationic etherifying agent on the starch to form modified starch B, and mixing the modified starch A and the modified starch B according to a certain proportion to form the modified starch bonding agent. The preparation method has the advantage of ensuring higher bonding power, firm bonding, high hardness of bonded paper products, high drying speed, low viscosity of paste, high flowability and wettability, convenience of coating, high storage stability and difficulty in gel production.

The invention discloses a method for accelerating fish curing and flavor ripeness and belongs to the technical field of application of combination of physical and biological processing technologies in food processing. The raw material of the method adopts fresh fish or frozen fish, the raw material of fish is made into cured fish by the steps of pre-processing, curing, biological ripeness, drying, physical ripeness, vacuum packaging and storage, the fish curing is accelerated by adopting the combination of adding trehalose and vacuum curing, the ripeness is accelerated by adopting the combination of flavor enzyme and microwave irradiation, and the physical and biological processing technologies are combined to be applied to the food processing. After the curing, flavor combination in the cured fish product after accelerated ripeness is doubled, and simultaneously, carbonyl compound and aroma compound esters which play important roles in cured fish flavor are generated, thus improving the sensory evaluation of the cured fish product obviously, such as sausage flavor, chewy property, taste and the like.

The invention relates to a preparation method of a polymer weak gel deep profile control agent. The preparation method comprises the following steps of preparing sodium carboxymethyl cellulose and distilled water into sodium carboxymethyl cellulose water solution of which the mass percentage is 1%-2%; adding acrylamide of which the mass is 2-8 times as great as that of the sodium carboxymethyl cellulose into the sodium carboxymethyl cellulose water solution, and then adding a cross-linking agent which accounts for 0.01%-2% of the total weight of the sodium carboxymethyl cellulose and the acrylamide; enabling nitrogen to enter into a closed system and isolating the air, and adding an initiating agent which accounts for 1%-2% of the total mass of the sodium carboxymethyl cellulose and the acrylamide; and discharging after carrying out constant-temperature reaction for 4-12 hours under the temperature of 30-60 DEG C. According to the preparation method disclosed by the invention, the acrylamide is grafted to the sodium carboxymethyl cellulose, polymer weal gel with a mesh structure is formed under the action of the initiating agent and the cross-linking agent, and a polymer weak gel system integrates the advantages of the sodium carboxymethyl cellulose and the acrylamide.

The invention discloses a phosphate-free water-retaining agent meat product, which is characterized by consisting of sodium alginate, edible calcium, livestock and poultry meat, seasoning accessory food and water, which respectively account for 0.01-8.0%, 0.01-8.0%, 0.1-70% and 1.0-10% by weight percent, and the rest is water. The invention overcomes the defects that a phosphate water-retaining agent has peculiar taste and influences the balance of calcium and phosphor of an organism, sodium alginate greatly improves the water-retaining property and the tissue state of meat products, so the acid resistant and heat resistant properties, water absorbability, adhesiveness, gel property and the like of the meat products are improved, the absorption of fat and water is promoted, the water interfacial tension is reduced, the emulsive oil drop is stabilized by the protein on the surface of the product to play the role of protection so as to prevent the emulsification state from being damaged, and thereby the invention achieves the purposes of water retention and oil retention.

The invention discloses health-care fish balls containing almonds. The fish balls are prepared from raw materials in parts by weight as follows: 200-220 parts of fresh silver carp flesh, 6-7 parts of egg white, 4-5 parts of potato starch, 30-33 parts of Chinese yams, 7-8 parts of pork fat, 3-4 parts of honey, 7-8 parts of fresh bayberries, 3-4 parts of sweet almonds, 1-1.2 parts of Lindernia ruellioides, 0.7-0.8 parts of immature orange fruits, 1.1-1.3 parts of Zinnia elegans, 0.8-1.0 part of saccharose, 0.5-0.6 parts of carrageenan, 0.4-0.5 parts of ginger, 4-5 parts of spices and proper amounts of table salt and water. According to the fish balls, adopted auxiliary materials such as the sweet almonds and the like have functions of moistening lung dryness and relaxing bowels, and adopted Chinese herbal medicines such as the Zinnia elegans and the like has functions of clearing heat and realizing diuresis.

A filtering method is directed to a wastewater of CMP process, which includes sub-micrometer particles suspended as colloid. The wastewater is filtered by a gel membrane formed on a surface of plastic filter. A coagulant or a pH adjuster is added to the wastewater so that the sub-micrometer particles are coagulated to form the gel membrane.

To provide an aqueous coating composition which has a low content of an organic solvent, whereby a burden on an environment is small; in which an increase of the molecular weight, gelation, etc. are suppressed; which performs excellent storage stability and provides a coating film having good water permeability/water resistance.

An aqueous coating composition which is a composition obtained by dispersing a fluorocopolymer (A) obtained by a solution polymerization method, in an aqueous medium, and which comprises a repeating unit (1) of fluoroolefin, a repeating unit (2) of a vinyl monomer or an allyl monomer, a repeating unit (3) of a vinyl monomer having a hydroxyl group bonded thereto or of an allyl monomer having a hydroxyl group bonded thereto, and a unit (4) of a vinyl monomer having a carboxylate group bonded thereto or of an allyl monomer, and which comprises a fluorocopolymer (A) wherein a proportion of the repeating unit (4) is from 0.4 mol % to less than 4 mol % based on the total repeating units, and an aqueous medium, wherein an amount of an organic solvent contained in the composition is from 0 to 1 mass %.

The invention discloses quick-frozen and fresh-keeping thousand-layer Tofu and a preparation method of the quick-frozen and fresh-keeping thousand-layer Tofu. The quick-frozen and fresh-keeping thousand-layer Tofu comprises the following components in parts by weight: 13-15 parts of soy isolate protein, 0.1-0.25 part of glutamine transaminase, 2-3 parts of cassava acetate modified starch, 5-8 parts of soybean oil, 0.3-0.6 part of aginomoto, 0.3-0.6 part of white sugar, 0.4-0.7 part of complex adhesive, 2.5-3.5 parts of duck egg white and 68-75 parts by weight of water. The quick-frozen and fresh-keeping thousand-layer Tofu disclosed by adopting the preparation method is prepared from the raw materials of the soy isolate protein, the glutamine transaminase, the cassava acetate modified starch, the soybean oil, the aginomoto, the white sugar, the complex adhesive and the duck egg white, keeps the original tender and fresh taste of Tofu, has a special tender, crisp, tasty, delicious taste, and has better elasticity and toughness, and strong soup water absorbing capacity; and regardless of frying, stir-frying, oil-frying, stewing or blending other seasonings, the quick-frozen and fresh-keeping thousand-layer Tofu is special in flavor and delicious in taste when being eaten.

The invention discloses a low sodium salt ham sausage and a preparation method thereof. The low sodium salt ham sausage is prepared from pork, starch, soy protein isolate, carrageenan, glutamine transaminage, sodium erythorbate, low sodium salt, seasoning, spices, a chromophoric reagent and water. The preparation method comprises the following steps: stirring and mixing the pork, the starch, the carrageenan, the sodium erythorbate, the low sodium salt, the seasoning, the spices and the chromophoric reagent; adding the soy protein isolate and the glutamine transaminage, chopping and mixing; adding water while chopping and mixing; filling the mixture into casing, and cooking; and cooling and storing. The prepared finished product has remarkably reduced content of sodium salt, and does not contain phosphate in favor of human health, thereby being a healthy product suitable for the hypertension crowd.

Compositions Including Relatively Low Reactivity Acids, Mixed with viscoelastic surfactants (VESs) and internal breakers may serve as drill-in fluids to open underground hydrocarbon reservoirs with carbonate contents of 10 wt % or above. The drill-in fluids have low viscosities in the drilling pipe. After the fluid flows out of the drill bit, the acids react with carbonates in the formation thereby increasing the pH of the drill-in fluids causing the VES to gel the fluid at the bottom of the hole and the downhole annulus between the drilling pipe and the formation rock. The viscosified drill-in fluid will reduce fluid loss and will carry no dissolved drilling debris to the surface. After drilling through the targeted formation, the internal breakers in the viscosified drill-in fluids will break down the fluids to permit their removal, and the well is ready to produce with very little or no near well bore damage.

The invention relates to a polysaccharide artificial blood vessel and a preparation method and application thereof. The polysaccharide artificial blood vessel is characterized in that the compact artificial blood vessel is prepared from water-insoluble polysaccharide fibers and colloidal solution which are prepared from polysaccharide; the polysaccharide is one or two of carboxymethylcellulose, hydroxy propyl cellulose, hydroxyethylcellulose, hyaluronic acid, alginate, heparin, chondroitin sulfuric acid, chitin, carboxymethyl chitin, hydroxypropyl chitin, hydroxyethyl chitin, carboxymethyl hydroxypropyl chitin, carboxymethyl hydroxyethyl chitin, hydroxypropyl hydroxyethyl chitin, sulfonated chitin, chitosan, carboxymethyl chitosan, hydroxypropyl chitosan, hydroxyethyl chitosan, carboxymethyl hydroxyethyl chitosan, carboxymethyl hydroxypropyl chitosan, hydroxypropyl hydroxyethyl chitosan, sulfonated chitosan or succinyl chitosan. The polysaccharide artificial blood vessel has the high compactness, stretchability, bendability, mechanical strength and flexibility, can be implanted into bodies during the operation of trauma repair, and is used as artificial blood vessels to replace hurt vessels and improve blood-supply condition.

The invention discloses a functional duck meat square leg and a preparation method of the functional duck meat square leg. The method comprises the steps of: slaughtering the duck, scalding hair, removing internal organs, cleaning, taking breast meat and leg meat, coating a mixture of nitrate, sodium isoascorbate and composite phosphate to pickle, adding a medlar juice and a walnut and lactoprotein mixed enzymatic solution, pig backfat, accessories, and glutamine transaminase and a lactic acid bacteria leavening agent, chopping, agitating and mixing uniformly, injecting in a mold way, preserving temperature and enzymolyzing, freezing and molding, demolding, packaging in vacuum, decocting and curing, sterilizing by microwave, and cooling to obtain the functional duck meat square leg which is rich in extracellular polysaccharide of lactic acid bacteria and polypeptide and amino acids. The method has the advantages that the amount of phosphate is reduced, and the emulsion stability, heat stability, water-retaining property and gel capacity of meat product are improved. The functional duck meat square leg is not only unique in flavor, but also has the functions of preventing oxidation, resisting angiotensin converting enzyme, and promoting calcium absorption and immune adjustment.

A personal care absorbent article, such as a sanitary pad or napkin, wound dressing, and the like having one or more layers of absorbent material treated with a red blood cell lysing agent and a gelling agent. The effect of combining a lysing agent that thins menses or other blood-containing bodily fluids with a gelling agent that thickens menses or other blood-containing bodily fluids is enhanced agglomeration and increased viscosity of the blood-containing bodily fluids that come in contact with the treated material.

The invention relates to a low-temperature anti-fingerprint surface treating agent for a galvanized steel sheet and an environment-friendly surface treated galvanized steel sheet of which the surface is treated by use of the surface treating agent. The surface of the galvanized steel sheet does not contain chromium and does not need to be dried at a high temperature, and a surface treatment film can be formed on the surface under a low-temperature drying condition; the manufacturing process is environment-friendly and low in energy consumption; a composition (namely the surface treating agent) containing specific water-based resin and phosphide, specific organic silicon compound, titanium compound, vanadium compound and oxidic polyethylene particles is applied to the surface of the galvanized steel sheet and then dried at a low temperature ranging from 50 to 75 DEG C, and consequently, the obtained surface treated galvanized steel sheet has excellent properties such as excellent alkali resistance, solvent resistance, corrosion resistance, fingerprint resistance, coating adherence and the like.