83results about How to "Excellent storage stability" patented technology

The invention specifically relates to a bifidobacterium microcapsule and a preparing method thereof. The bifidobacterium is obligatorily anaerobic and very sensitive to oxygen, PH, temperature, humidity, and other adverse external environment, thereby being very hard to remain activity during production, storage and transport; besides, if taken orally in a form of dry bifidobacterium powder, the bifidobacterium cannot tolerate low-pH value gastric acid, bile salt, and other environments, so a purpose that massive survived bifidobacteria arrive at an intestinal tract and colonise on the intestinal mucosa is hard to be guaranteed. The preparing method disclosed by the invention comprises the following steps of: adding freeze-dried bifidobacterium powder into a sodium alginate solution and then mixing in soybean oil, emulsifying the mixed solution and standing; centrifugally collecting micro-capsules; and drying the micro-capsules by using a vacuum freeze-drying technology. The bifidobacterium microcapsule disclosed by the invention has the advantages of gastric acid resistance, bile salt resistance and entericsolubility, high survival rate of bifidobacterium, simple preparation method, strong practicality, convenience for industrial production, and excellent storage stability and solves the problem of short storage period of probiotics preparations.

A polyimide precursor characterized by having a structure derived from 2,2'-bis(trifluoromethyl)benzidine (TFMB) or the like as a diamine-derived structure and also having both a structure derived from a specific alicyclic tetracarboxylic acid dianhydride and a structure derived from an aromatic tetracarboxylic acid dianhydride as structures each derived from a tetracarboxylic acid dianhydride, wherein the degree of imidation of an amide bond derived from the alicyclic tetracarboxylic acid dianhydride is 10 to 100%.

The invention discloses a single-component epoxy heat-conducting adhesive which consists of the following components in percentage by weight: 20 to 60 percent of epoxy resin, 5 to 15 percent of diluent, 5 to 25 percent of curing agent and 20 to 50 percent of heat-conducting filler, wherein the heat-conducting filler is prepared by performing surface treatment in the following method: adding the heat-conducting filler, organic acid and a coupling agent into solvent and uniformly dispersing, drying until the solvent is completely volatilized, and collecting the obtained powder for later use, thereby finishing the whole treatment process; and the raw materials comprise the following components in percentage by weight: 10 to 20 percent of heat-conducting filler, 0.5 to 5 percent of organic acid, 0.2 to 2 percent of coupling agent, and the balance of solvent. The heat-conducting filler is subjected to surface treatment, the epoxy resin serves as a matrix, the highly heat-conducting adhesive is prepared and has high preservation stability, and the usage amount of the heat-conducting filler is reduced; and moreover, the solvent is recycled in the production process, and the environmental pollution is slight, so that the single-component epoxy heat-conducting adhesive has the advantages of convenience in use, excellent performance and low cost, and the requirements of heat-conducting package and adhesion in the fields of electronics and electrics and the like are well met.

The invention relates to a probiotics microcapsule and a preparation method thereof. The probiotics is obligate-anaerobic, and cannot keep the activity during production, storage and transportation. The preparation method comprises the following steps: after performing anaerobic culture in liquid culture medium, centrifuging probiotics powder and collecting thalli, and preparing a bacterium suspension; mixing and pre-freezing a protecting agent and the bacterium suspension, and performing vacuum freeze-drying to obtain lyophilized bacterial powder, adding the lyophilized bacterial powder into a sodium alginate solution to obtain a bacteria-gelatin mixed solution; dropwise adding the bacteria-gelatin mixed solution into soybean oil, emulsifying and rapidly adding into calcium chloride solution; and centrifuging and collecting microcapsules. The probiotics microcapsule has the advantages of resisting gastric acid, cholate and enteric solubility, the survival rate of thalli is high, the preparation method is simple, the practicability is strong, and the industrial production is facilitated; and as fructooligosaccharide, inulin in the protecting agent not only can be proved to improve the survival rate of probiotics.

The invention discloses a preparation method of steamed rhizoma polygonati. The preparation method of the steamed rhizoma polygonati comprises the following steps: removing impurities and fibrous roots from fresh rhizoma polygonati, completely washing and airing for 12 to 36 hours, putting into a drying oven with the temperature of 30 to 50 DEG C, and drying for 12 to 36 hours to enable the watercontent to reach 25 to 40 percent; taking outing and cutting into thick sheets of 5 to 10 mm, and drying in a drying oven with the temperature of 40 DEG C for 12 to 36 hours to enable the water content to reach 15 to 24 percent; putting the dried rhizoma polygonati sheets into a steaming container, steaming for 4 to 8 hours and taking out; drying by hot air with the temperature of 55 to 80 DEG C for 10 to 20 hours to enable the water content to reach 12 to 15 percent to obtain one-steamed and one-dried rhizoma polygonati; repeating the above operation for four times to obtain five-steamed five-dried rhizoma polygonati; putting the five-steamed five-dried rhizoma polygonati into the steaming container, steaming for 4 to 8 hours and taking out; and drying by hot air with the temperature of 70 to 80 DEG C to enable the water content to reach 7 percent to obtain six-steamed six-dried rhizoma polygonati, wherein the 5-HMF content of the product is more than or equal to 0.6 mg / g. According to the preparation method provided by the invention, the steaming process is optimally designed and stage-by-stage processing treatment is adopted, so that the rhizoma polygonati product has more excellent quality, has taste and natural component content which are more excellent than those of the prior art, and has remarkable health application advantage.

The invention discloses a plant growth regulator and application thereof. The plant growth regulator has active components of prohexadione calcium and uniconazole. Experiment show that prohexadione calcium and uniconazole have obvious synergism, so as to realize an ideal anti-lodging effect, eliminate side-effects caused by individual existence, and substantially reduce a usage amount of the active components, environmental pollution, and agricultural cost.

A lyophilized preparation having superior storage stability which comprises a hepatocyte growth factor (HGF), a stabilizing agent such as arginine or lysine, sodium chloride, and a buffering agent, which is prepared from an aqueous solution containing the hepatocyte growth factor at a concentration lower than 5 mg / mL and / or which is used for preparing an aqueous solution containing the hepatocyte growth factor at a concentration lower than 5 mg / mL by redissolution.

The invention relates to a green solvent for pesticide and an application of the green solvent. The green solvent for pesticide is a composition in which natural oils serve as the primary components and gemini pyrrolidone serves as the cosolvent. The green solvent for pesticide has excellent dissolubility and application stability and is used for replacing the poisonous and harmful benzenes solvent in traditional pesticide preparation. The green solvent for pesticide is safe to human body, domestic animals and environment. The green solvent comprises the following components by weight percent: 70.0-99.0% of natural oils, 0.1-20.0% of cosolvent and 0-10.0% of anti-freezing agent. Such a green solvent is prepared by uniformly mixing the components according to a certain weight percent. The green solvent for pesticide has the advantages that the preparation process is simple, the solvent use is safe and convenient, the green solvent for pesticide meets the demand of replacing the benzenes solvent in pesticide preparation of national policy, and the green solvent for pesticide is suitable for being applied and popularized in large area.

The invention discloses linseed oil microcapsules and a preparation method thereof. The preparation method comprises the following steps of (1) performing hydrolyzing and extracting by an enzyme method to obtain linseed oil; (2) preparing an aqueous phase; (3) preparing an oil phase; (4) performing high-speed cutting emulsifying on a mixture of the aqueous phase and the oil phase by a cutter; (5)performing homogenizing on obtained emulsion by a high pressure homogenizer; and (6) performing spray drying on the obtained emulsion to obtain linseed oil microcapsule granules. The linseed oil microcapsules are high in solubility, good in emulsibility, high in stability, good in film-forming properties and high in packing rate. The linseed oil microcapsules have good mouth feel and flavor, and are safe and reliable in quality; and besides, the preparation technology is simple, mass production is convenient, and the loading quantity of the obtained linseed oil microcapsule granule linseed oilcan achieve 42%, and the microcapsule entrapping rate is 90% or above.

An epoxy resin-based coating composition which comprises, at least, an epoxy resin, a thiol-type curing agent, and a curing assistant, characterized by consisting of two liquids to be mixed just before using, namely, a liquid (A) containing an epoxy resin and a thiol-type curing agent and a liquid (B) containing a curing assistant, said thiol-type curing agent containing a branched thiol compound (P) that is an ester of a polyhydric alcohol with a thiol group-containing carboxylic acid represented by general formula (1): HOCO(CH2)nCR1R2SH (wherein R1 is a hydrogen atom or a linear or branched alkyl group having 1 to 10 carbon atoms; R2 is a linear or branched alkyl group having 1 to 10 carbon atoms; and n is an integer of 1 to 4). The epoxy resin-based coating composition exhibits a suitable pot life, excellent curability particularly at low and ordinary temperatures, and low toxicity.

The invention discloses stable phytosterol nanometer emulsion compounded by soy protein-stevioside, and a preparation method and application thereof. The method comprises the steps of mixing a soy isolate protein solution and a stevioside solution to prepare a composite stable system; dissolving phytosterol into sunflower seed oil being 90 to 99 DEG C to obtain an oil phase; adding thw oil phase dissolved with the phytosterol into a water phase of soy protein-stevioside; controlling the mass ratio of the oil phase to the water phase to be 10:90-50:50; after the homogenizing, performing ultrasonic treatment or high-pressure micro jet flow treatment to obtain the stable phytosterol nanometer emulsion compounded by soy protein-stevioside. A powder product with high redissolving performance loaded with phytosterol can be prepared through spray drying treatment on the nanometer emulsion. The process conditions are simple and mild; the natural effect and safety are realized; the fast continuous production can be performed; products applied to food, medicine and cosmetics can be prepared through operating and controlling the process conditions; the industrialized and scaled application values are realized.

The invention relates to a liquid crystal aligning agent, a liquid crystal aligning film and a liquid crystal display element, wherein the storage stability of the long-term low-temperature storage of substrates is good and the coating property of substrate is excellent. The liquid crystal aligning agent provided by the invention comprises a polymer (A) selected from at least one out of groups formed by polyamic acid, polyimide and polyamide acid ester obtained through the reaction of tetracarboxylic acid dianhydride with diamine, with the presence of specific diamine; and a specific solvent (B).

The invention discloses a preparing method of Gram-negative bacterium microcapsule in microcapsule production technical domain, which is characterized by the following: choosing acacia gum, malt dextrin, beta-cyclodextrin and carboxymethyl cellulose as wall material; sieving and domesticating Gram-negative bacterial liquid from earth oil polluted soil; using as core material; naming bacterial agent as barley sugar oligotrophy single cell bacteria; adopting spray drying method; preparing microcapsule with grain size at 10mum-100mum; making live bacteria ratio reach 84. 57%; storing for eight months under the condition of 18-30 deg. c; reaching the live bacteria magnitude order at 109 separate / g; lengthening retention period largely. This invention possesses the advantages of low cost, simple craft, convenient operation and strong practicability, which is easy to realize large scale industrial production.

The present invention relates to natural and functional bean-curd having good storage stability and comprising various nutrients contained in Japanese apricots and red algae as well as those of soybean, which is - prepared by using fruit vinegar and red algae as natural coagulant. In the present invention, red algae and fruit vinegar employed as coagulant serves as inorganic salts and as organic acid, respectively, to coagulate bean-curd, so that two coagulation principles work together, and thus it is distinguishable from conventional process for preparing bean-curd. The process according to the present invention comprises the steps of 1) washing and immersing soybean with water; 2) adding water and finely pulverizing the mixture by the use of a mixer to prepare bean paste! 3) heating the bean paste and removing bean-curd dregs to provide soybean milk; 4) introducing natural coagulant thereto and coagulating the soybean milk with stirring to provide uncurdled bean- curd; and 5) pouring the uncurdled bean-curd on a mold on which a hemp cloth is laid and compressing it to provide bean curd.

An addition-curable conductive silicone composition includes the components as following: (A) denoted by an average composition formula (1), which is organopolysiloxane including at least two alkenyls connected with one silicon atom in one molecule, Ra R / bSiO(4-a-b) / 2 (1); (B), which is organic hydrogen polysiloxane including at least two hydrogen atoms connected with one silicon atom in one molecule; (C) silver powder or silver coated microsphere powder; (D) conductive microphere power (which does not include silver, copper or metal including silver or copper); and (E) an addition reaction catalyst; and (F) one or more than two selected from fatty acids, fatty acid derivatives and their metal salts. Cured material specially silicon rubber with high conductivity 1.0*10<-2> Omega*cm is formed from the conductive silicone composition, which can be used for coating, the shape maintenance is good, and the storage stability is good.

A lubricating grease composition and a preparation method thereof are disclosed. The invention relates to the field of lubricating grease, and discloses a lubricating grease composition. The lubricating grease composition comprises base oil (10-80 wt%) and a thickening agent, which comprises non-Newton fluid sulfurized calcium alkyl phenate (10-70 wt%), and also optionally comprises one or more of non-Newton fluid calcium sulfonate (0-70 wt%), non-Newton fluid calcium naphthenate (0-70 wt%), and non-Newton fluid calcium salicylate (0-70 wt%). The invention also discloses a preparation method of the lubricating grease composition. The provided lubricating grease composition has excellent performances.

A lubricating grease composition and a preparation method thereof are disclosed. The invention relates to the field of lubricating grease, and discloses a lubricating grease composition. The lubricating grease composition comprises base oil (10-80 wt%) and a thickening agent, which comprises non-Newton fluid sulfurized calcium alkyl phenate-calcium sulfonate (10-70 wt%), zircon salts of higher fatty acid (1-10 wt%), and polyurea compounds (0.5-30 wt%), and also optionally comprises one or more of non-Newton fluid calcium naphthenate (0-70 wt%), non-Newton fluid calcium salicylate (0-70 wt%), non-Newton fluid calcium oleate (0-70 wt%), zircon salts of aromatic acid (0-15 wt%), and zircon salts of micro-molecular inorganic acid and / or lower fatty acid (0-15 wt%). The invention also discloses a preparation method of the lubricating grease composition. The provided lubricating grease composition has excellent performances.

The invention provides a liquid crystal aligning agent and a liquid crystal display element. Due to the adoption of the liquid crystal aligning agent, a liquid crystal alignment film can be formed, which is excellent in liquid crystal aligning excellent property, light resistance, electrical properties and storage stability, while the voltage maintaining rate of the liquid crystal alignment film is lowered greatly even under the high-intensity light irradiation. The liquid crystal aligning agent contains polyorganosiloxane. The polyorganosiloxane has a structure selected from the acetal ester structure of carboxylic acid, ketal ester structure of carboxylic acid, 1-alkyl cycloalkyl ester structure of carboxylic acid, and tertiary alkyl ester structure of carboxylic acid.

The present invention discloses a sealant composition for liquid crystal display device, the sealant composition including a monomer as expressed in Chemical Formula 1 below wherein X is O, S, or NH, R1 is H or CH3, and R2 is an alkyl group or an aryl group of C2-30.

The purpose of the present invention is to provide a photosensitive conductive paste which provides a coating film that has good storage stability, is capable of maintaining high adhesion under relatively low temperature curing conditions, and is also capable of exhibiting high conductivity. The present invention provides a photosensitive conductive paste, which contains (A) conductive particles, (B) a photosensitive component, (C) a photopolymerization initiator and (D) an epoxy resin, and wherein the epoxy resin (D) has an epoxy equivalent weight of 200-500 g / equivalent.

Disclosed is an aqueous ink composition for dyeing polyamide-based fibers which comprises: at least one kind of dye arbitrarily selected from dyes of three categories including acid dyes, direct dyes and reactive dyes; a compound which is represented by formula (1) [wherein X1, X2, X3 and X4 independently represent each a hydrogen atom or a methyl group; and j, k, m and n represent numbers, provided that the sum thereof is 4 to 40 inclusive] and has an average molecular weight of 340 to 2200; and ethylene glycol. Also disclosed is a method for producing a dyed polyamide-based fiber which comprises a step for applying said aqueous ink composition to a polyamide-based fiber by using an inkjet printer. Thus, it is possible to provide a dye ink for dyeing polyamide-based fibers, which has a high ejection stability in a printer equipped with an industrial inkjet head requiring a high-viscosity ink, has a high storage stability of the ink and shows a good fixability to fibers.

The invention relates to the field of lubricating grease, and discloses a lubricating grease composition. The composition comprises base oil and a thickening agent. The thickening agent comprises non-Newtonian fluid sulfurized calcium alkyl phenate and a lithium salt of a higher aliphatic acid, and optionally comprises one or more selected from a group consisting non-Newtonian fluid calcium sulfonate, non-Newtonian fluid calcium naphthenate, non-Newtonian fluid calcium salicylate, non-Newtonian fluid calcium oleate, a lithium salt of an aromatic acid, and a lithium salt of a small-molecule inorganic acid and / or a lower aliphatic acid. Based on the weight of the composition, the content of the base oil is 10-80% by weight, the content of the non-Newtonian fluid sulfurized calcium alkyl phenate is 10-70% by weight, the content of the lithium salt of the higher aliphatic acid is 1-20% by weight, and contents of other optional components are respectively 0-70% by weight, 0-70% by weight, 0-70% by weight, 0-70% by weight, 0-15% by weight and 0-15% by weight. A preparing method of the composition is also disclosed. The composition has excellent properties.

It is intended to provide a method of producing a high-molecular weight fucoidan, which is expected as usable as cosmetics and dermatological drugs, and a composition containing the high-molecular weight fucoidan. A composition containing fucoidan having a weight-average molecular weight of from 1,000,000 to 2,000,000, which is obtained by extracting Cladosiphon okamuranus with hot water under neutral to alkaline conditions of pH 6.0 or higher, removing low-molecular compounds by ultrafiltration and adjusting the final pH value to 6.5 or higher, is efficacious as cosmetics and drugs in the field of dermatology and has an excellent storage stability.

The present invention provides a chemiluminescent enhancing solution, a chemiluminescent substrate, a detection method and a kit for detecting a to-be-detected substance in a sample. According to thepresent invention, the improvement comprises the combined use of two chemiluminescent enhancing agents such as o-phenylphenol and 4-imidazole phenol, wherein the two enhancing agents provide the synergistically-enhanced effect, can significantly reduce the background signal, and can further maintain the stable luminol luminescence signal for a long time; and the detection method and the kit can bematched with the chemiluminescence analyzer, and can be used for detecting tumor markers, infectious diseases, hormones and other enzymatic chemiluminescence products.

The invention provides a photomask board and photomask, wherein the photomask board is provided with a photosensitive composition layer on a cardinal plate; the photosensitive composition layer comprises (A) at least one optical whitener as shown in the following (I-1) to (I-3) formula, (B) initiator of polymerization, (C) compound with ethylene unsaturated linkage, (D) adhesive polymer and (E) lightproof material. The compound shown in the following (I-1) to (I-3) formula can be replaced by alkyl, aromatic radical and alkoxyl group.

The purpose of the present invention is to provide an alkali developable photosensitive resin composition which exhibits excellent coating-liquid storage stability and no reduction in adhesive properties during storage, and with which a cured film exhibiting a high hardness, and excellent transparency, moist-heat resistance, synthetic sweat resistance, adhesive properties, chemical resistance, and vacuum resistance, can be produced. Accordingly, provided is a photosensitive resin composition which includes an acrylic resin (A), a radically polymerizable compound (B), a photopolymerization initiator (C), a metal chelate compound (D), and a solvent (E), said acrylic resin (A) having a structure derived from a maleimide having a specific structure.

The invention provides a sheet-shaped epoxy resin composition for encapsulating electronic components and an electronic component device using the same, wherein the storage stability is good, and the gas output during the solidification can be reduced. The composition is the sheet-shaped epoxy resin composition for encapsulating the electronic components, and the thickness of the sheet is in a range from 150(mu)m to 1mm. the epoxy resin composition comprises the following (A) to (D) composition, and the following (E)composition. (A) is the epoxy resin, (B) is the phenolic resin, (C) is the elastomer, (D) is the inorganic filler. The (E) is at least one of the following 5-Nitro-isophthalic acid and the complex formed by the imidazoliniumcompounds represented by the following formula(1), or the 5-Nitro-isophthalic acid and the complex formed by the imidazoliniumcompounds represented by the following formula(2), or the 5-Nitro-isophthalic acid and the complex formed by the imidazoliniumcompounds represented by the following formula(3).

Provided is a novel aqueous ink composition for ballpoint pens, which has the advantages of both aqueous ballpoint pens and oil-based ballpoint pens. The ink composition for aqueous ballpoint pens contains, in a manner such that the oil emulsifies in the aqueous phase, a colorless oil-based phase, which has a viscosity of 300 to 500,00mPas when the sheer rate is 38 / sec, in relation to a colored aqueous phase containing a pigment dispersion, a water-soluble dye, or a mixture thereof.

The invention discloses a platinum catalyst. In the platinum catalyst, organic ligands are a compound containing vinyl and an organic compound containing nitrogen. A platinum complex formed through coordination of the two organic ligands and chloroplatinic acid not only breaks through traditional imprisonment that only a platinum catalyst containing a low content of platinum can be synthesized, and synthesizes the platinum catalyst with a high content of platinum, but also forms the platinum catalyst which has excellent catalytic activity and excellent storage stability. When the platinum catalyst is used for catalyzing and synthesizing silicone rubber, the obtained silicon rubber has excellent vulcanization activity and an excellent mechanical property. In addition, the prepared platinum catalyst can be diluted to various suitable concentrations according to the need so as to be used for silica gel products of various forms, and thus being easy to weigh and accurate in dosage.

The present invention relates to a urethane-based optical resin composition having a high heat deflection temperature and a method for manufacturing an optical lens using the composition. A monomer composition for a plastic optical lens according to the present invention is lightweight and has excellent plasticity, dyeability, transparency, shock resistance, etc., and especially has a high initial heat deflection temperature, thereby reducing central deformation of the lens and cracking of the multi-film of the lens due to heat. Further, the monomer composition has excellent thermal stabilityto reduce discoloration of the lens due to heat.