253results about How to "Fast swelling" patented technology

The present invention provides a gastric retention controlled drug delivery system comprising: (a) a controlled release core comprising a drug, a highly swellable polymer and a gas generating agent, said core being capable of swelling and achieving floatation rapidly while maintaining its physical integrity in gastrointestinal fluids for prolonged periods, and (b) a rapidly releasing coat composition comprising the same drug as in the core and pharmaceutically acceptable excipients, wherein the coating composition surrounds the core such that the system provides a biphasic release of the drug in gastrointestinal fluids.

A secondary battery includes a case having positive and negative electrodes, a safety device attached to a surface of the case and having a resistance value which changes during swelling of the case, and a protective circuit module attached to a side of the case while being electrically connected to the safety device. The resistance value of the safety device changes as the case swells, and the protective circuit module reduces or interrupts charging / discharging currents in response thereto. The safety device can be used for all secondary batteries regardless of capacity, can quickly react against abruptly rising internal temperature and rapid swelling, and can stably prevent swelling which occurs above an allowable temperature.

The invention discloses an organosilicon foliage fertilizer and making method, which is the leach of charred rice husk with water without polluting and side effect, wherein the foliage fertilizer is made of nitrogen, phosphine, potassium fertilizer, trace fertilizer, humic acid, plant growth modifier dissolved in the water with organosilicon fertilizer. The invention reaches effective utility due to kinds of nutritious element adsorbed by plant, which improves the crop production for forage crop, bean culture, vegetable and fruit tree.

The present invention provides sintered polymeric materials and methods of making the same which are useful in a variety of applications. In one embodiment, the present invention provides a sintered polymeric material comprising at least one plastic and at least one elastomer.

There is disclosed a sanitary tampon including an absorber including: an absorbent layer made of an absorbent fibrous material; and a hydrophobic liquid-permeable layer covering the absorbent layer. The absorber is formed firstly into a flat shape and then into a column shape. The absorbent layer forming the flat absorber is formed with a plurality of small recesses which open in the surface of the absorbent layer and extend into the absorbent layer.

An odor control fragrant additive comprises compacted pellets or granules infiltrated with fragrant oil. Cellulosic material, activated carbon and binder are mixed together and compacted to produce compacted pellets or granules. The cellulosic material preferably is peat moss, which swells up during absorption of fragrant oil and acts as fragrant oil storage. Fragrant oil is delivered to activated carbon that has large surface area, which evaporates the fragrance oil to release steady fragrance output. Thus, the activated carbon, which evaporates fragrance provides steady release of fragrance in the surrounding environment of fragrant compacted pellets or granules for a period of several months without overpowering the environment with excess fragrance. The fragrant compacted pellets or granules may be used to suppress malodor from trashcans or litter boxes and may provide stand-alone additions to drawers and cabinets, emitting pleasant fragrance.

The present invention provides sintered polymeric materials and methods of making the same which are useful in a variety of applications. In one embodiment, the present invention provides a sintered polymeric material comprising at least one plastic and at least one elastomer.

Fluid activatable adhesive compositions and activating fluid(s) for activating the adhesive composition are described herein. The adhesive compositions contain at least two polymers with different hydrophilicities. The hydrophilic polymer has quick tack when exposed to a hydrophilic solvent, such as water or other aqueous solvent, while the hydrophobic polymer provides strong adhesion to a paper or polymeric substrate. The adhesive composition may contain particulate fillers which enable fast exhaustion of the activation fluid out of the adhesive when applied to a substrate, thereby allowing the hydrophobic polymers of the adhesive composition to achieve strong adhesion of the liner-free label to the paper or polymeric substrate. The particulate fillers may also function as anti-blocking agents when liner-free label media are tightly wound in a roll. The adhesive compositions described herein may be used not only on paper, cardboard, and metal, but also on glass and plastics commonly used in commercial applications.

The present invention provides a gastric retention controlled drug delivery system comprising: (a) a controlled release core comprising a drug, a highly swellable polymer and a gas generating agent, said core being capable of swelling and achieving floatation rapidly while maintaining its physical integrity in gastrointestinal fluids for prolonged periods, and (b) a rapidly releasing coat composition comprising the same drug as in the core and pharmaceutically acceptable excipients, wherein the coating composition surrounds the core such that the system provides a biphasic release of the drug in gastrointestinal fluids.

A method for producing instant noodles dried by a high-temperature hot air stream, wherein the noodles have a moreish taste and texture similar to fried noodles and yet have a low caloric value. The method for producing instant noodles dried by a high-temperature hot air stream comprises: step (a) producing a noodle band from a noodle dough prepared by adding an edible oil to a noodle dough material containing a raw material flour, and then producing raw noodle strands from the noodle band, step (b) adhering an edible oil to the raw noodle strands, and then steaming the raw noodle strands to produce steamed noodles, step (c) forming a noodle block by packing a predetermined amount of the steamed noodles into a retainer, and step (d) swelling and drying the noodle block by blowing a hot air stream at a temperature of 120° C. to 160° C. onto the noodle block from above and below the retainer at a stream speed of 30 m / s to 70 m / s for a period of 3 to 15 minutes.

A packer assembly comprises a tubular member and a packer system that circumferentially overlies the tubular member. The packer system includes end portions and a central portion disposed between the end portions. The central portion and the end portions are formed of material that swells when contacted with a swelling fluid. The central and end portions are constructed to swell upon contact with the swelling fluid so that the central portion swells to a diameter defined by a wall of the wellbore more rapidly than the end portions. In such a configuration, the central portion of the packer system can be fully swollen prior to the full swelling of the end portions.

Fluid activatable adhesive compositions and activating fluid(s) for activating the adhesive composition are described herein. The adhesive compositions contain at least two polymers with different hydrophilicities. The hydrophilic polymer has quick tack when exposed to a hydrophilic solvent, such as water or other aqueous solvent, while the hydrophobic polymer provides strong adhesion to a paper or polymeric substrate. The adhesive composition may contain particulate fillers which enable fast exhaustion of the activation fluid out of the adhesive when applied to a substrate, thereby allowing the hydrophobic polymers of the adhesive composition to achieve strong adhesion of the liner-free label to the paper or polymeric substrate. The particulate fillers may also function as anti-blocking agents when liner-free label media are tightly wound in a roll. The adhesive compositions described herein may be used not only on paper, cardboard, and metal, but also on glass and plastics commonly used in commercial applications.

The invention discloses a rapid response optical glucose sensor based on glucose sensitive hydrogel film. The hydrogel film used for sensing has two properties that on one hand, a swellbility of the hydrogel film in aqueous solution is changed with a glucose concentration in the solution; on the other hand, an absorption spectrum or a reflection spectrum has Fabry-Perot interference fringes. The change of glucose concentration leads to change of hydrogel film swellbility, so as to cause moving of the Fabry-Perot interference fringes; therefore the moving of the Fabry-Perot interference fringes indicates the change of glucose concentration in the solution. The invention utilizes a layer by layer assembly method to prepare the glucose sensitive hydrogel film with a thickness from hundreds nanometers to micrometers, so as to conduct rapid response.

The invention belongs to instant guar gum and a preparation method thereof. The instant guar gum is prepared from the following raw materials in parts by weight: 20-80 parts of guar gum raw powder, 10-25 parts of propylene oxide, 4-10 parts of chloroacetic acid, 5-10 parts of hydrochloric acid with mass concentration of 20 percent, 150-200 parts of solvent alcohol, 8-20 parts of alkali liquor with concentration of 10 percent, 150-200 parts of water, 20-50 parts of hydrophobic modification material and 1000 parts of washing medium, wherein the solvent alcohol is any one of methanol, ethanol, ethylene glycol or isopropyl alcohol; the hydrophobic modification material is any one of bromododecane, bromohexadecane or bromooctadecane; the washing medium is any one of isopropyl alcohol, methanol or ethanol. According to the instant guar gum and the preparation method thereof, a step of taking hydroxypropyl guar gum out in oil field fracturing construction is not needed, a reaction process is saved, and pollution and waste caused by post-treatment of the reaction process are reduced.

Fluid activatable adhesive compositions and activating fluid(s) for activating the adhesive composition are described herein. The adhesive compositions contain at least two polymers with different hydrophilicities. The hydrophilic polymer has quick tack when exposed to a hydrophilic solvent, such as water or other aqueous solvent, while the hydrophobic polymer provides strong adhesion to a paper or polymeric substrate. The adhesive composition may contain particulate fillers which enable fast exhaustion of the activation fluid out of the adhesive when applied to a substrate, thereby allowing the hydrophobic polymers of the adhesive composition to achieve strong adhesion of the liner-free label to the paper or polymeric substrate. The particulate fillers may also function as anti-blocking agents when liner-free label media are tightly wound in a roll. The adhesive compositions described herein may be used not only on paper, cardboard, and metal, but also on glass and plastics commonly used in commercial applications.

The invention relates to a guar derivative-based betaine-type amphoteric thickening agent with a structural formula (I) and a preparation method thereof, wherein R is selected from hydroxypropyl, hydroxyethyl, carboxymethyl, 2-hydroxypropyl-N,N,N-trimethyl; R1 and R2 represent C1-C4 alkyl respectively, and R3 represents a carboxylic group COO- or a sulfonic group SO3-; the substitution degree of R is 0.02-0.6, and the substitution degree of the betaine-type amphoteric ion pair is 0.02-0.6.

The invention discloses a technology for culturing high-quality high-yield detoxification sweet potato. In the technology, through understanding characteristics of the detoxification sweet potato, technologies of selecting seed and land, ridging, planting seedling, controlling water, applying fertilizer, intertilling and weeding, lifting up of vines, controlling pest and the like are adopted to ensure that the detoxification sweet potato has the advantages of early tuber formation, quick enlargement, early maturation, high yield, high quality and the like; therefore, the market demand is satisfied and the economic benefit is enhanced.

A fermented brown coal residue soil conditioner is prepared by evenly mixing brown coal residues, brown coal essence liquid, medical stone, composite bone meal, dry sapropel, and a composite microorganism inoculant according to a certain weight ratio and then fermenting the mixture. The absorbing performance and salt-base exchange performance of the soil conditioner are strong, the soil conditioner can improve the soil breathability, the crop respiratory effect is improved, the absorbing performance of roots is enhanced, the lateral root growth is promoted, the crop photosynthetic effect is effectively improved, the nutrients for plants are balanced, and the growth is promoted. The wastes (brown coal residues and brown coal essence liquid), which are generated during the brown coal processing process, are utilized, the wastes are converted into valuable resources, the product addition value is increased, an income increasing method is developed for humic acid producing entrepreneurs, a novel thinking is provided for developing soil conditioner, and the soil conditioner eventually improves the soil quality and increases the economic profits.

A water swelling water stop material comprised of a water permeable sheet, characterized in that water absorbent resin particles (A) are enclosed therein so that the water stop material upon water absorption and swelling has the configuration of polyhedron (B). The water stop material is thin to thereby facilitate storage thereof and is lightweight to thereby render carry thereof easy. The polyhedron (B) is so constructed that upon water absorption and swelling, at least two faces are planar. When the polyhedron (B) is formed into a rectangular solid or cube, even if multiple polyhedrons (B) are piled one upon another, they are stable and are resistant to collapse even under the influence of a a large amount of water. When polyhedrons (B) of the same configuration are piled one upon another, any gaps between water stop materials are slight so as to inhibit water leakage through the gaps. Moreover, when the polyhedron (B) has a cavity, the cavity can be packed with a heavy solid material or can have a stake hammered therein so that the water stop material can stably resist violent water streams. Therefore, this water swelling water stop material can be appropriately used as a water stop material for rainwater penetration prevention in order to protect banks, buildings, houses, etc. in the event of flood, heavy rain, etc.

The invention discloses a tremella aurantialba culture medium and a culture preparation method. The tremella aurantialba culture medium comprises main materials, auxiliary materials and a few nutrient elements, wherein the main materials are grain seeds with a weight ratio of 89-94%, and include any one or more combined seeds of buckwheat, sorghum, corn and rice seeds; the auxiliary materials are biodiesel leftovers or bacterium residues with a weight ratio of 5-10%, and include copper seed husks, rubber seed husks and oil tea seed husks; the nutrient elements are calcium, phosphorus, sulfur and potassium; and a weight ratio of a calcium compound, a phosphorus compound, a sulfur compound or a potassium compound is 1%. The tremella aurantialba culture preparation method based on the medium comprises the steps of preparing a first test tube stock culture, a grain seed stock culture, an original grain seed culture and a cultivated culture. The tremella aurantialba culture medium and the culture preparation method have the characteristics that tremella aurantialba hyphae are high in material absorption, a tremella aurantialba emergence rate is as high as 100%, the whole production cycle is only 60d, and the output growth of tremella aurantialba can be above 30%, so that a requirement of the large-scale cultivation culture of a tremella aurantialba bag material is met.

The invention relates to ultra low temperature super guanidine gum fracturing fluid, comprising the ingredients with mass percents as follows: 0.20% of super guanidine gum, 0.12% of organopolysiloxane, 0.07% of polyoxypropylene polyoxyethylene polyoxypropylene octadeyl alcohol ether, 0.32% of cationic organic amino, 0.09% of cationic long chain polymer, 0.03% of organic silicone oil, 0.0003% of borax, 0.00027% of persulfate, 0.00009% of hyper-valent oxysalt, 0.00014% of peroxide and balance of water. The fracturing fluid has good anti-shearing property and breaks gum completely.

The invention discloses an inverse-phase micro-emulsion polymer fracturing fluid system with an online construction function. The inverse-phase micro-emulsion polymer fracturing fluid system comprisesinstant dissolving emulsion thickening agents, functional auxiliaries, a clay stabilizer and fluid preparation water. The instant dissolving emulsion thickening agents are inverse-phase micro-emulsion polymers, and inverse-phase micro-emulsion polymerization is carried out on raw materials including acrylamide, acrylic acid, strong-hydrophilicity monomers, a functional monomer A, a functional monomer B, pH (potential of hydrogen) regulators, solubilizers, composite emulsifiers, oil solvents, initiators and deionized water to obtain the instant dissolving emulsion thickening agents; the functional monomer A is methyl methacrylate or ethyl methacrylate or a mixture of the methyl methacrylate and the ethyl methacrylate; the functional monomer B is vinylphosphonic acid or vinyl sulfonic acid;the functional auxiliaries are non-ionic surfactants; the clay stabilizer is potassium chloride, and the fluid preparation water is clear water or high-mineralization water or treated stratum flow-back fluid. The inverse-phase micro-emulsion polymer fracturing fluid system has the advantages that the inverse-phase micro-emulsion polymer fracturing fluid system is high in dispersing and swelling speed and can be prepared in a batch manner or can be continuously mixed, 'online construction' requirements even can be completely met by the inverse-phase micro-emulsion polymer fracturing fluid system, processes for constructing the inverse-phase micro-emulsion polymer fracturing fluid system are simple, and the fracturing cost can be reduced.

Disclosed herein is a hair dyeing composition. The composition induces swelling of hair to expand the cortex by the use of arginine, which is a constituent ingredient of hair, and as a result, effectively allows a colorant to infiltrate into the cuticle, thereby increasing the dyeing rate. Therefore, the composition can markedly decrease the dyeing time to 1˜5 minutes from 20˜30 minutes required in conventional hair dyeing compositions. In addition, the combined effects of aloe vera gel, ceramide and hair keratin enables prevention of damage to the hair during dyeing.

The invention discloses a temperature-resistant salt-resistant quick-dissolving thickening agent used for a seawater-based fracturing fluid and a preparation method thereof. The temperature-resistant salt-resistant quick-dissolving thickening agent comprises the following components in percentages by mass: 6% to 8% of acrylic acid, 5% to 6% of sodium hydroxide, 18% to 23% of acrylamide, 1% to 2% of an isolation monomer, 3% to 4% of a functional anion monomer, 3% to 5% of a functional cationic monomer, 4% to 6% of an association intermediate, and 0.4% to 0.8% of an ammonium persulfate-sodium bisulfite redox system or 0.6% to 1.0% of azobisisobutyronitrile which is used as an initiator, with the balance being deionized water. The preparation method for the temperature-resistant salt-resistant quick-dissolving thickening agent comprises the following steps: 1, synthesis of the association intermediate; 2, synthesis of a thickener colloid; and 3, colloid postprocessing. The thickening agent provided by the invention has the following advantages: salt resistance is excellent; the degree of mineralization of a solution has little influence on the rate of swelling; the viscosity-increasing capacity in seawater is strong; antibacterial stability of the solution is strong; the solution has excellent temperature resistance and shearing resistance; and the content of an insoluble substance is extremely small and can not be measured with a conventional method, so the damage of residues on reservoir strata is almost eliminated.

Fluid activatable adhesive compositions and activating fluid(s) for activating the adhesive composition are described herein. The adhesive compositions contain at least two polymers with different hydrophilicities. The hydrophilic polymer has quick tack when exposed to a hydrophilic solvent, such as water or other aqueous solvent, while the hydrophobic polymer provides strong adhesion to a paper or polymeric substrate. The adhesive composition may contain particulate fillers which enable fast exhaustion of the activation fluid out of the adhesive when applied to a substrate, thereby allowing the hydrophobic polymers of the adhesive composition to achieve strong adhesion of the liner-free label to the paper or polymeric substrate. The particulate fillers may also function as anti-blocking agents when liner-free label media are tightly wound in a roll. The adhesive compositions described herein may be used not only on paper, cardboard, and metal, but also on glass and plastics commonly used in commercial applications.

The invention provides a process for preparing aqueous gel comprising the following steps, mixing and dissolving alkene group monomer, cross linking agent and initiating agent by the ratio of 100:2-50:0.2-1:1-10, using microwave having a frequency of 2450MHz or frequency changed microwave of 300MHz-300GHz for radiation to the reaction system.

Fluid activatable, multilayer adhesive compositions for use with liner-free labels, and methods of making and using thereof are described herein. The compositions contain a functional layer, such as an adhesive layer, which is applied to the label and a barrier layer which is applied on top of the adhesive layer. The multilayer composition prevents the adhesive layer on the label from interacting with the face of an adjacent label, particularly when the labels are stored as coils or folded stacks.