450 results about "POLYMER SUBSTANCE" patented technology

The present invention relates to absorbent articles, such as diapers and sanitary napkins, and acquisition members useful for such articles. More specifically, the invention relates to an acquisition member comprising a multitude of fibers and a latex binder, the liquid acquisition member having a void volume of at least 7 cubic centimeter per gram in the temperature range from 20° C. to 40° C., the binder comprising a dispersion of a polymer substance in an essentially aqueous medium, the polymer substance being capable of forming a film, said film having a tan δ value, as defined herein, at 20° C. and at 40° C., wherein the tan δ value at 40° C. is not greater than said tan δ value at 20° C.

The invention provides a sludge-dewatering compound conditioning agent and an application method thereof. The sludge-dewatering compound conditioning agent comprises a Fenton reagent or / and similar Fenton reagent and a skeleton construct, and the weight ratio of the Fenton reagent or / and similar Fenton reagent and the skeleton construct is 1: (0.05-300); and the skeleton construct adopts a powder body. The application method comprises the following steps: adding the Fenton reagent or / and similar Fenton reagent into sludge slurry, and mixing for oxidation; and adding the skeleton construct into the sludge slurry with the Fenton reagent or / and similar Fenton reagent, and mixing. Due to synergy of the Fenton reagent or / and similar Fenton reagent and the powder type skeleton construct, extracellular polymeric substances in sludge can be destructed effectively, the compressibility of organic substances can be reduced, and the sludge dewatering performance of the sludge-dewatering compound conditioning agent can be improved greatly. The procedures of the application method are simple, the conditions can be controlled easily, the sludge dewatering time can be shortened, and the large-scale treatment of the sludge can be realized.

The invention provides a collagen facial mask and a preparation method thereof. The method comprises the following steps of: stirring 1 to 20 mass percent of aqueous solution of collagen and 0.1 to 2 mass percent of aqueous solution of a modifier at the temperature of between 20 and 60 DEG C for reacting for 15 to 45 minutes to obtain stock solution; adding a plasticizer, a functional additive and an antimicrobial growth promoter into the stock solution, and continuing to stir at the temperature of between 20 and 60 DEG C for 30 to 60 minutes to obtain mixed solution; and pouring the mixed solution into a die for forming, and drying at the temperature of between 30 and 60 DEG C for 3 to 10 hours to obtain the collagen facial mask. The prepared collagen facial mask is mainly formed by macromolecular substances extracted from natural animals and plants, safe and effective and does not have toxic or side effect, has the high heat stability, toughness, ductility and adhesion, and can be in fit with skin well and achieve the effects of preserving moisture doubly, softening cutin skin, resisting winkle, whitening the skin, restoring the skin and the like under the assistance of the functional additive; rejected materials of the facial mask are degradable, and do not cause environmental pollution; and the collagen facial mask can be widely applied in the field of daily cosmetics and has the excellent market application prospect.

Chronic wounds may be treated by debriding necrotic and other devitalized tissue from the wound, and applying to the wound an extracellular polymeric substance solvating system comprising a metal ion sequestering agent, surfactant and buffering agent. The solvating system disrupts biofilms which may be present in the wound and aids or enables the resumption of normal healing.

The present invention provides a method for enhancing a foam retention property of a beverage, and in addition a method for stably retaining foam in a beverage, the foam obtained by shaking the beverage, by enhancing the foam retention property. The present invention is implemented by preparing a beverage by using a fermentation-derived cellulose as a raw material thereof, more preferably by preparing a beverage by using a fermentation-derived cellulose in a state of complex with a high molecular substance.

The invention discloses a method for transferring patterns of a fabric. The method comprises the following steps of: dissolving a polymer substance in water or a mixed solution of water and an organic solvent, coating paper or a plastic film, drying, and coiling for later use; printing on the paper or the plastic film with dye-based ink or dye-based water ink to obtain transfer paper or a transfer film; jointing the printing surface of the transfer paper or the transfer film with a fabric to be transferred, putting the transfer paper or the transfer film and the fabric into a transfer machine, heating and pressurizing to realize printing; stripping the transfer paper or the transfer film and fixing a dye; or fixing the dye and then stripping the transfer paper or the transfer film; and washing the fabric with water and sizing to finish transferring. By adopting the transferring method disclosed by the invention, the inherent transfer thought is broken through, the humidification procedure is eliminated, the processing time is saved, the production cost is lowered, and the printing difficulty is lowered.

A flame-retardant fabric 1 of the present invention comprises: a fiber fabric 4; and a back layer 5 formed on the back surface of the fiber fabric 4 and containing at least one of inorganic compound selected from the group consisting of calcium carbonate and magnesium hydroxide, thermally expansive graphite and a polymer substance. The adhering amount of solid of the back layer 5 is 50 to 150 g/m². The adhering amount of the thermally expansive graphite is 15 to 60 g/m². The adhering amount of the inorganic compound is 10 to 60 g/m². The flame-retardant fabric causes no generation of noxious substances in case of fire and at incineration disposal, can impart sufficient initial flame retardancy, and has excellent flame-retardant performance in heat aging.

A problem to be solved of the present invention is to provide a drug formulation and a method of administering an active ingredient which allow the active ingredient to be delivered evenly into the site of action in the skin with high efficiency while ensuring stability of the active ingredient over a long time, and which are easily handled and are less stressful for patients. Mean for solving the problem is a microneedle assembly formulation for skin treatment comprising a platform and a plurality of conical or pyramidal microneedles formed on the platform containing a base composed of a bio-soluble and thread-forming polymer substance and an objective substance retained in the base, wherein the objective substance is a substance effective for prevention or treatment of skin senescence, or treatment of skin scar.

The invention relates to a polyacrylate/nanometer ZnO composite finishing agent suitable for the base coating of clothing leathers, instep leathers and corrected leathers and a preparation method of the polyacrylate/nanometer ZnO composite finishing agent. The polyacrylate/nanometer ZnO composite finishing agent comprises the following raw materials by weight: 22wt%-28wt% of acrylic ester monomer, 2wt%-5wt% of emulsifying agent, 0.4 wt%-0.8 wt% of initiating agent, 0.2wt%-1.5 wt% of nanometer ZnO, 0.6 wt%- 5wt% of water-solubility high polymer materials, and the rest of deionized water. The preparation method comprises the following steps of: firstly, carrying out surface modification on the nanometer ZnO by adopting a water-solubility high molecular polymer, enabling the nanometer ZnO tobe uniformly dispersed in a water solution, then triggering the acrylic ester monomer to polymerize in site, and preparing the polyacrylate/nanometer ZnO composite finishing agent. Compared with the pure polyacrylate emulsion, the polyacrylate/nanometer ZnO composite finishing agent has the advantages that the water tolerance, the elongation at break, the air permeability and the water vapor permeability of a finished leather sample are all substantially increased.

The invention relates to a biological tuberous starch degradable plastic master batch. The plastic mater batch is prepared from the following components by weight percentage: 70-80% of fine tuberous starch, 7-10% of flexibilizer, 0.5-2% of initiator, 4-7% of modifier, 1-3% of plasticizer and 3-6% of lubricating processing aid. The method for producing the biological tuberous starch degradable plastic master batch comprises the following steps of: tuberous starch refining procedure, starch high-speed mixing procedure and reaction extrusion procedure. The tuberous starch is a natural polymer substance with high polymerization degree, and has the advantages of high polarization, high amylose content, low cost and easy purchase. In addition, the tuberous starch is easy to perform graft reaction with the polymer, and is easy to perform esterification reaction with the modifier; and the natural starch with high rigidity and high crystallinity is converted into a plastic master batch with plastic property through microfining, modification and reaction extrusion. As the master batch has a certain strength and thermoplastic processing property, the master batch can be used for processing various film products, blow molding products and injection molding products according to different adding amounts.

The present invention provides a porous cellulose gel having a high mechanical strength capable of being operated at a higher flow rate, and a method for producing the same. To a suspension liquid of cellulose particles, a crosslinking agent in an amount of from 4 to 12 times the amount of the cellulose monomer in terms of moles and an alkali in an amount of from 0.1 to 1.5 times the amount of the crosslinking agent in terms of moles are added continuously dropwise or added dividedly over a prescribed period of time, whereby flow rate characteristics of a resulting porous cellulose gel can be enhanced. According to the invention, the production efficiency of a polymer substance, such as a nucleic acid and a protein can be enhanced.

Provided is a flexible carbon fiber nonwoven fabric which has resistance to bending, is flexible, and exhibits excellent processability. Said flexible carbon fiber nonwoven fabric is obtained by carbonizing a nonwoven fabric obtained by electrospinning a composition containing: an electrospinnable polymer substance, such as polyacrylonitrile resins; an organic compound, which is different from said polymer substance, such as phenol resins; and a transition metal.

The invention is named as 'a joint-conditioning dehydration method for sludge', belonging to the technical field of environmental engineering and sludge treatment. The joint-conditioning dehydration method comprises the following steps of: adding H202 and FeSO4 into the sludge (with pH being equal to 5) acidified by mineral acid, degrading organic matter by virtue of strong oxidation of a Fenton reagent, and dissolving and cracking microbial cells and extracellular polymeric substances in the sludge; adding a surfactant CTMAB (Cetyl Trimethyl Ammonium Bromide) into the sludge to reduce the surface tension of the sludge and change the surface characteristics of the sludge, and transforming a part of interstitial water into free water; and flocculating sludge particulates with disperse structure, small particle diameter and large specific surface area by virtue of flocculation action of polyacrylamide (CPAM) to the sludge particulates. After the sludge is subjected to joint conditioning of the Fenton reagent, the surfactant and the CPAM, the moisture content of the sludge after being centrifugally dewatered is reduced to 78.2% from 87.7%, and the output of mud cakes is reduced to 0.115t/m<3> from 0.218t/m<3>, therefore, the dehydration property of the sludge can be improved remarkably, the investment and operation costs are reduced effectively, and an ideal sludge reduction goal is reached.

The present invention was completed based on these discoveries and relates to in a hydrogel-forming compression-coated solid pharmaceutical preparation comprising a core tablet containing drug and outer layer made from hydrogel-forming polymer substance and hydrophilic base, the improvement, a timed-release compression-coated solid composition for oral administration, said composition comprising (1) drug and freely erodible filler are mixed with the core tablet, (2) the percentage erosion of the core tablet is approximately 40 to approximately 90%, and (3) the outer layer essentially does not contain the same drug as the above-mentioned drug. By releasing a drug after a specific lag time, it becomes possible to effectively deliver a drug to a specific site in the digestive tract. It is therefore useful as presented as a timed-release solid composition for oral administration of a drug that is to be effectively delivered in high concentrations to the afflicted site in the lower digestive tract, a drug that is to be effectively absorbed in the lower digestive tract, a drug that is effective for chronopharmacotherapy, etc.

Tobacco material is reduced in stimulus and pungency in its smoking stage by decreasing a content of a colored acidic water-soluble polymer substance.

The invention provides a tissue engineering scaffold material of a chemical bonding active material and a preparation method of the tissue engineering scaffold material. The tissue engineering scaffold material of the chemical bonding active material is prepared by a biodegradable macromolecular substance and an active material, wherein the macromolecular substance is counted by 100 parts by weight, and the active material is 0-15 part(s) by weight but is not zero; the 100 parts by weight of the macromolecular substance consists of 50-100 parts by weight of the synthesized macromolecular substance and 0-50 part(s) by weight of natural macromolecular substance; and a macromolecular nano-fiber film or a composite macromolecular nano-fiber film is formed by the macromolecular substance by means of electrostatic spinning, and the active material is evenly bonded on the surface of the fiber film. The tissue engineering scaffold material of the chemical bonding active material provided by the invention is good in biocompatibility, enough in mechanical strength, biodegradable, and suitable for stem cell proliferation and directed differentiation, and has the functions of cell migration adhesion promotion and stem cell capture to induce the regeneration of tissues such as bone, cartilage, nerve, skin, etc.

The rubber composition of the invention includes a rubber composition which is a silica compounded rubber composition for tire containing 100 parts by weight of a rubber component made of (a) from 20 to 80% by weight of a vinyl-cis-polybutadiene rubber containing 1,2-polybutadiene having a melting point of 170° C. or higher and a high-molecular substance having at least one unsaturated double bond per a repeating unit and comprising at least one member selected from polyisoprene, crystalline polybutadiene having a melting point of not higher than 150° C., liquid polybutadiene and derivatives thereof and (b) from 80 to 20% by weight of a diene-based rubber other than (a); and (c) from 40 to 100 parts by weight of a rubber reinforcing agent containing 40% or more of silica, wherein the 1,2-polybutadiene is dispersed in a short crystalline fiber state and the high-molecular substance is dispersed in a granular state in the cis-polybutadiene rubber which is a matrix component of the subject vinyl-cis-polybutadiene rubber (a); and the short crystalline fiber of the 1,2-polybutadiene is dispersed in particles of the high-molecular substance.

The invention provides a method for treating surplus sludge produced after biological treatment of wastewater. By adding a ferrous sulfate solution, a sodium persulfate solution or a potassium persulfate solution, and industrial coal ash, the sludge is treated to obtain a filter cake and a filter liquor. Compared with the prior art, adding divalent ferric salt and heating synergize to stimulate the persulfate to produce a free sulfate radical having a strong oxidizing property, the free sulfate radical is used to efficiently break a microbial cell in the sludge, then the microorganism is inactivated, the adhesive action with an extracellular polymeric substance is remarkably weakened, the extracellular polymeric substance is then stripped, the bond-state water is released, and the structure and the surface hydrophobicity of the sludge flocculant are changed; after the industrial coal ash is added, the permeability of the filter cake is improved, and the filter cake can play the role of a filter aid. According to the method, the specific resistance of the sludge is as low as (0.2-0.5)*108S<2>/g, the moisture content of the dehydrated filter cake is as low as 40-60%, the secondary pollution caused by common flocculants like polyacrylamide is reduced, the operating cost for the dehydration of the sludge is lowered, original processing equipment can be used to implement the method without any transformation, the operation is convenient, and the dehydrated sludge is directly backfilled or is used to produce a ceramsite or building material.

The invention aims to provide a method for preparing deproteinized calf blood extract and freeze-dried powder thereof. The method has simple process and is easy for mass production, the obtained extract has high bioactivity and good product purity, the freeze-dried powder is subjected to gradient temperature rise and drying, and the finished product has good appearance and is easy to dissolve. The deproteinized calf blood extract is prepared by the method comprising the following steps: heating collected blood serum and deproteinizing the blood serum, filtering the blood serum and then condensing the filtrate, removing protein by ethanol; then adding active carbon and acid into the filtrate to hydrolyze and decolor the filtrate; filtering the filtrate and then adjusting pH value to a proper range, freezing the filtrate and removing protein repeatedly; and finally using fibrous membrane to hyperfiltrate high molecular substance to obtain the deproteinized calf blood extract, then adding excipient and water for injection into the extract, pre-freezing the extract, and heating the extract in gradient and drying the extract in vacuum to obtain finished products.

This invention is aimed to provide a stabilized formulation of ramosetron or a pharmaceutically acceptable salt thereof under a temperature/humidity condition, especially at a low content and relates to a stable oral solid drug composition of ramosetron or a pharmaceutically acceptable salt thereof, which is characterized by containing one or two or more members selected from the group consisting of an aliphatic carboxylic acid or an ester thereof, a hydroxycarboxylic acid or an ester thereof, an acidic amino acid, an enolic acid, an aromatic carboxyl compound or an ester thereof, and a carboxyl group-containing high-molecular substance, and to a stabilization method of the same. Also, this invention relates to a therapeutic agent of diarrhea-predominant irritable bowel syndrome containing from 0.002 to 0.02 mg of ramosetron hydrochloride as a daily dose or an equivalent molar amount of ramosetron or its pharmaceutically acceptable other salt as an active ingredient.

The invention provides a heavy metal removing method using biochar as the substrate material and fixing microalgae to the biochar carrier to form a composite absorbent. The method is characterized in that extracellular polymeric substances secreted by the microalgae under an inhibition condition are used as the binder, and micro-grade algae cells are attached to the surfaces of the multiple pores of the biochar to form the composite absorbent; the composite absorbent utilizes the advantage that the biochar can absorb the heavy metals fast and uses the live algae cells to absorb the heavy metals through metabolism in a long-term and effective manner so as to increase the absorption effect on water with high-concentration heavy metals. Accordingly, the method is high in heavy metal removing rate, easy in recycling and low in application cost.

The present invention provides OLED panel and a manufacturing method thereof and a method for inspecting packaging effectiveness, which use a hygroscopically expandable polymeric substance mixed in a metal compound salt to make a moisture-sensitive color change film. Since the hygroscopically expandable polymeric substance has better water absorbability, the moisture-sensitive color change film can serve as a desiccant of a sealed space of an OLED panel to extend the lifespan of the OLED panel and also, a portion of the metal compounds of the metal compound salt may react with moisture to turn into hydrates, causing color change so as to allow for determining packaging effectiveness according to the color change of the moisture-sensitive color change film after absorption of moisture thereby enabling easy determination of failure of the packaging through visual inspection and also enabling accurate measurement of water content of the sealed space of the OLED panel by using an infrared spectrophotometer to accurately determine the packaging effectiveness. Further, a manufacturing process of an OLED panel that involves such an inspection method is simple and can be easily carried out.

The invention relates to a tilmicosin micro-capsule preparation, and in particular relates to a tilmicosin micro-capsule preparation and a preparation method of the tilmicosin micro-capsule preparation, belonging to the technical field of veterinary medicine. The tilmicosin micro-capsule preparation comprises an inner core layer and a coating layer, wherein the inner core layer comprises a tilmicosin raw material and macromolecule auxiliary materials, the macromolecule auxiliary materials are selected from one or more than one of 12-carbon fatty acid-18-carbon fatty acid, paraffins and vegetable wax; and the coating layer comprises an inner coating layer and an outer coating layer, wherein the material of the inner coating layer is one or more than one of starch, calcium carbonate and calcium hydrophosphate, and the material of the outer coating layer is acrylic resin. The tilmicosin micro-capsule preparation disclosed by the invention is tasteless, enteric, and good in palatability. According to the invention, the tilmicosin is packed by the macromolecule auxiliary materials, a layer of enteric coating layer is sprayed on the surfaces of the tilmicosin grains in the process of rolling circle when the materials are prepared, and the strong bitter taste and odor of the tilmicosin can be completely covered due to the double-layer package, and the preparation method is simple in technology, and low in cost.