45results about How to "Excellent shelf life" patented technology

The invention discloses a curing agent for curing a meat product. The curing agent is composed of the following raw materials in parts by weight: 2000-3000 parts of table salt, 2500-4500 parts of white granulated sugar, 1000-3000 parts of distiller yeast, 1000-4000 parts of soybean sauce, 200-500 parts of composite phosphate, 10-50 parts of tea polyphenol, 6-12 parts of sodium nitrite, 10-50 parts of sodium erythorbate, 10-50 parts of nisin, 650-1650 parts of potassium lactate and 200-800 parts of spices. The curing agent contains less salt, so that the problem that the mouth feel of preserved meat is too salty and too hard is solved, and the preserved meat has stable quality and safe shelf life. According to the curing agent, the adding amount of sodium nitrite in the preserved meat is reduced and a natural and toxin-free preservative is added, so that the guarantee period of the meat product is prolonged and the requirements of people on health and health care can be met. A method for rolling and curing the meat product not only can meet various technical indexes and technological parameters, but also has a simple process and greatly shortens the production period.

The invention belongs to the technical field of chemical adhesives and in particular relates to an acrylic acid modified water-based polyurethane adhesive and a preparation method thereof. The preparation method of the acrylic acid modified water-based polyurethane adhesive comprises the following steps of: preparing prepolymer; neutralizing and dispersing; and adding a bridging agent and an acrylic acid monomer for performing polymerization. The acrylic acid modified water-based polyurethane adhesive and a water-based curing agent are mixed to prepare a double-component water-based polyurethane adhesive. The double-component water-based polyurethane adhesive has the properties of low solvent consumption, high solid content, high viscosity, long and adjustable pot life of mixtures, excellent adhesive force, low price and the like, can be applied to base materials such as fabrics, foam, plastic, leather and the like, and has wide application prospect.

A sealing material for use in liquid-crystal dropping processes which has an excellent pot-life, has the excellent property of not contaminating liquid crystals, and enables the production of a liquid-crystal display of high picture quality; a vertical-conduction material; and a liquid-crystal display element. The sealing material for use in liquid-crystal dropping processes comprises a (meth)acrylic resin and / or a resin having a cyclic ether group and a heat-curing agent having a structure represented by the following general formula (1). [Chemical formula 1] (1) In the general formula (1), X is a structure represented by (CHR)n, wherein R represents OH and / or H and n is 0 to 3.

The invention provides a preparation method of a binary inactivated vaccine against a Japanese encephalitis virus and a porcine parvovirus, which comprises the following steps of: (1) inoculating the animal cells to a microcarrier for performing the absorption culture and multiplication culture processes of the cells in a tidal biological reactor; (2) inoculating the Japanese encephalitis virus and the porcine parvovirus on the cells being subjected to multiplication culture; (3) when the inoculated animal cell CPE (Cytopathic Effect) reaches above 75%, harvesting a viral solution; and (4) freezing and thawing the harvested viral solution twice at minus 20 DEG C, inactivating after the concentration, and adding an emulsifier for emulsification to obtain the binary inactivated vaccine against Japanese encephalitis virus and porcine parvovirus. The binary inactivated vaccine provided by the invention has the advantages of good immunogenicity, stable growth and high titer of the preserved seed virus; and the tidal biological reactor is adopted to respectively culture and harvest two viruses with high titers, and the two viruses are directly emulsified and prepared after the concentration and the inactivation, so that the binary inactivated vaccine can be continuously produced in a large scale.

The present invention provides a pressure-sensitive adhesive composition which can form a pressure-sensitive sheet excellent in adhesive properties (adherability, easy peeling property at the time of high speed peeling, and re-peeling property) and the antistatic property and which has long pot life. The pressure-sensitive composition of the present invention is a pressure-sensitive adhesive composition comprising a (meth)acryl-based polymer composed of, as raw material monomers, a (meth) acryl-based monomer having an alkyl group of 1 to 14 carbon atoms and a hydroxyl group-containing (meth) acryl-based monomer, an alkali metal salt, and a catalyst having iron as an active center, wherein the hydroxyl group-containing (meth)acryl-based monomer is contained in an amount of 6 parts by weight or more to 100 parts by weight of the (meth) acryl-based monomer having an alkyl group of 1 to 14 carbon atoms.

The invention relates to printing lithography, in particular to a printing lithographic plate (UV-CTP) for laser digital scanning and the preparation method thereof. The preparation method of the printing lithographic plate (UV-CTP) comprises the following steps: firstly cleaning, neutralizing, electrolyzing and oxidizing aluminum plate strip materials and hole-sealing to obtain the plate base; then, spread-coating the prepared photosensitive coating liquid on the plate base through extruding; and obtaining the UV-CTP after drying. The UV-CTP plate, following the photosensitive CTP plate and the thermosensitive CTP plate, belongs to a novel plate which can be directly imaged through computer digital laser scanning without pretreatment. Compared with the conventional PS plate and CTP plate, the UV-CTP plate has the following characteristics and advantages that the aluminum plate rolling technique with low deformation rate and low surface defect ensures that the plate base of the plate has better physical properties, particularly, the UV-CTP plate is advantageous in manufacturing cost, preservation period and universality over other CTP plates; and the UV-CTP plate has the characteristics of high dot reducibility, high photosensitive speed, great operating latitude and wide application, etc., therefore, the UV-CTP plate is applicable to printing materials, such as metal, plastic, etc., by the UV ink.

The invention provides a high-solid coating composition and a multilayer paint film forming method employing the same, wherein the high-solid coating composition is capable of obtaining a coating film excellent in pot life, excellent in scratch resistance, acid resistance, and finished appearance (moisture-resistant property). The high-solid coating composition comprises (A) acrylic resin containing secondary hydroxyl having a weight-average molecular weight of 3000-7000, (B) an aliphatic polyisocyanate compound and / or a derivative thereof, (C) an alkyl etherified melamine resin having a weight-average molecular weight of 1,000 or less, and (D) a sulfonate compound and / or a phosphate compound, wherein the amount of the component (C) to the total amount of the component (B) is within a range of 1.5 to 20% by mass.

To provide a reaction-curable polyurethane resin composition which is extremely excellent in liquid storage stability (both homogeneity and reactivity) and in reactivity (uniformity of reaction) and a solventless, two-pack, reaction-curable polyurethane adhesive composed of ''a base resin'' and ''a curing agent'' which are based on the constituents of the composition. The above problems can be solved by selecting and using a specific catalyst, by selecting and using a polymeric MDI having an acidity above a specific level as the organic polyisocyanate, and by specifying the equivalent ratio of isocyanato of the organic polyisocyanate to hydroxyl of castor oil polyol (A).

The invention provides a special-type high-strength wear-resistant water-based epoxy paint and a preparation method thereof. The water-based epoxy paint comprises a component A and a component B. The component A comprises the following ingredients in parts by mass: 80-90 parts of water-based epoxy resin, 2-4 parts of modified compatibilizing resin and 5-15 parts of reactive diluent. The component B comprises the following ingredients in parts by mass: 40-45 parts of water-based amine hardener, 8-10 parts of tungsten carbide, 4-5 parts of spodumene, 3-5 parts of functional resin, 3-18 parts of pigment, 10-25 parts of filler, 0.1-0.5 part of defoaming agent, 0.1-0.3 part of wetting and leveling agent and 20-30 parts of water. The paint film formed by proportionally mixing the component A and component B of the water-based epoxy paint has the advantages of proper usable life, favorable constructability, favorable hardness, favorable wear resistance, favorable flexibility, favorable impact resistance, other physical and mechanical properties and chemical medium resistance, and is suitable to be used as a floor paint.

The present invention provides a curable resin composition with which it is possible to obtain a cured product that is capable of retaining a low thermal expansion rate even in a high-temperature range during component mounting and that exhibits various excellent properties such as toughness; and a dry film, a cured product, and an electronic component using the curable resin composition. The curable resin composition comprises a curable resin, a fine powder in which at least one of the dimensions is smaller than 100 nm, and a filler other than the fine powder. The dry film, the cured productand the electronic component are obtained by using said curable resin composition.

The invention belongs to the field of polymer chemistry, and particularly relates to a high-hydroxyl acrylic emulsion with quick drying and long working life and a synthesis method thereof. The high-hydroxyl acrylic emulsion is prepared by polymerizing the following raw materials: 10 to 50 parts by mass of methyl methacrylate, 5 to 30 parts by mass of styrene, 0.5 to 5 parts by mass of acrylic acid, 2 to 20 parts by mass of n-butyl acrylate and 10 to 50 parts by mass of 7-hydroxyalkyl (meth)acrylate. The high-hydroxyl acrylic emulsion prepared by the method has very excellent appearance, particle size and stability, and water-based two-component coating prepared from the high-hydroxyl acrylic emulsion has relatively high gloss, relatively long working life while being high in drying speed,and extremely excellent in water resistance.

Provided is a resin composition which is able to be cured fast at low temperatures, while having high bonding strength (especially, high peel strength) after curing, and which is capable of suppressing decrease in the bonding strength (especially, in the peel strength) after a moisture resistance test of the resin composition after curing, while having excellent pot life. The present invention provides a resin composition which contains (A) an epoxy resin, (B) a thiol compound represented by C(CH2OR1)(CH2OR2)(CH2OR3)(CH2OR4) (wherein each of R1, R2, R3 and R4 independently represents a hydrogen atom or CnH2nSH (wherein n represents a number of 2-6); and at least one of R1, R2, R3 and R4 represents CnH2nSH (wherein n represents a number of 2-6), (b) a thiol compound other than the component(b), and (C) a latent curing accelerator.

Provided is a resin composition that is extremely useful as a sealant for an optical semiconductor (such as an LED product) having excellent pot life and sulfur resistance. The curable resin composition for sealing an optical semiconductor comprises a curing catalyst having a melting point between 40 and 200 DEG C and an epoxy resin and / or epoxy resin curing agent. Preferably the epoxy resin curing agent is, for instance, polyvalent carboxylic acid resin (A)obtained by addition reaction of a dual end-type carbinol-modified silicone oil represented by formula (1), a polyhydric alcohol compound having two or more hydroxyl groups per molecule, and a compound having one carboxylic anhydride group per molecule. In formula (1), R1 is an alkylene group, and the like, R2 is an alkyl group, and the like, and m is an average value and is between 1 and 100. The formula (1) is defined in the specification.

The present invention provides an aqueous epoxy terrace paint, comprising a component A and a component B. The component A comprises 80-90 parts of low molecular weight liquid epoxy resin,2-4 parts of a modified resin compatibilizer and 5-15 parts of a reactive diluent. The component B comprises 20-0 parts of water, 40-45 parts of an aqueous amine curing agent, 3-5 parts of a functional resin, 3-18 parts of a pigment, 10-25 parts of a filler, 0.1-0.5 part of a defoamer and 0.1-0.3 part of a wetting leveling agent. The components A and component B of the aqueous epoxy terrace paint are mixed according to a certain proportion to form a film with suitable working life and good workability. The film has good hardness, wear resistance, flexibility, impact resistance and other physical and mechanical properties and chemical resistance. The invention also provides a preparation method of the aqueous epoxy terrace paint.

The invention provides a polyurethane coating with high solid content and high weather resistance and a preparation method thereof. The polyurethane coating is prepared from a component A and a component B, wherein the component A is prepared from the following ingredients in parts by mass: 20 to 35 parts of polyester polyol resin, 10 to 20.5 parts of polyaspartic ester resin, 1 to 3 parts of wetting dispersant, 1.5 to 2.5 parts of thixotropic agent, 1 to 3 parts of ultraviolet absorbent, 3 to 4 parts of pigment and 35 to 50 parts of filler; the component B is prepared from the following ingredients in parts by mass: 20 to 60 parts of curing agent and 0.4 to 0.6 part of catalyst. The polyurethane coating with high solid content and high weather resistance provided by the invention has theadvantages of low VOC emission load, environment friendliness and no toxicity, meanwhile, the polyurethane coating has an excellent mechanical property and weather resistance, the construction potlife is good, the curing property at normal temperature is good, the range of application is wide, and the polyurethane coating is especially suitable for the industrial coating under special environments such as ships and ocean platform atmospheric regions.

Provided is a thermally reversible cross-linked hot-melt adhesive which has good handling properties and storage stability, can be repeatedly melted by heating and solidified by cooling, and has highadhesiveness and good pot life. This hot-melt adhesive is obtained by melting and mixing a maleimide compound, having a maleimide group at a plurality of ends thereof, with a mixture of a star-branched-structure polyurethane resin having a furan ring at a plurality of ends thereof and a straight-chain polyurethane resin having a furan ring at both ends thereof. The hot-melt adhesive has, due to athermally reversible equilibrium reaction, a low viscosity when being melted by heating, and, after being solidified by cooling, forms a high molecular weight body having a three-dimensionally cross-linked structure, and therefore, is a resin having high cohesive force and high adhesiveness. The hot-melt adhesive does not react with moisture in the air and therefore can be stored in air, and is particularly suitable as a hot-melt adhesive for bookbinding.

The invention provides a making method of capelin caviar. The caviar consists of the following components of roe, spice fluid, condiments, copper gluconate and a preservative. The caviar is made through the following steps of performing pretreatment: performing salt treatment on fresh roe; performing extraction so as to obtain the spice fluid: taking the following components in parts by weight of purple perilla, fresh ginger, hot peppers, cinnamon bark, cloves, garlic, amomum cardamomum, star aniseeds, fructus tsaoko and Chinese prickly ash, performing decoction for 2-4 times, performing filtration, combining filtrate so as to obtain the spice fluid; performing preparation: taking the roe after the salt treatment and the spice fluid, in parts by weight, performing steaming, performing filtration, performing screening to obtain average-grain roe, taking the average-grain roe, the condiments and the copper gluconate in parts by weight, performing steaming, adding a preservative, and performing uniform mixing so as to obtain the caviar; and performing preservation: placing the caviar in the shade, performing packaging, performing sterilization, performing warehousing, and performing preservation. According to the caviar prepared by the making method disclosed by the invention, high nutrient value of the roe is reserved, the fishy taste and foreign taste are removed, the fresh-keeping time of the caviar is prolonged, the caviar is prevented from being deteriorated in a short time, and the mouth feel and the nutrient value of the caviar are not influenced.

The invention provides a polyurethane coating with high solid content and high weather resistance and a preparation method thereof. The polyurethane coating is prepared from a component A and a component B, wherein the component A is prepared from the following ingredients in parts by mass: 20 to 35 parts of polyester polyol resin, 10 to 20.5 parts of polyaspartic ester resin, 1 to 3 parts of wetting dispersant, 1.5 to 2.5 parts of thixotropic agent, 1 to 3 parts of ultraviolet absorbent, 3 to 4 parts of pigment and 35 to 50 parts of filler; the component B is prepared from the following ingredients in parts by mass: 20 to 60 parts of curing agent and 0.4 to 0.6 part of catalyst. The polyurethane coating with high solid content and high weather resistance provided by the invention has theadvantages of low VOC emission load, environment friendliness and no toxicity, meanwhile, the polyurethane coating has an excellent mechanical property and weather resistance, the construction potlife is good, the curing property at normal temperature is good, the range of application is wide, and the polyurethane coating is especially suitable for the industrial coating under special environments such as ships and ocean platform atmospheric regions.

The invention provides a method for making burned pepper chilli sauce. The method comprises the following steps: selecting the following raw material components in parts by weight: 180-200 parts of fresh root-removed pepper, 20-22 parts of chopped garlic, 5-8 parts of green prickleyash, 3-6 parts of lotus fragrance powder, 2-3 parts of fructus amomi, 60-80 parts of fermented soya beans, 5-6 parts of lithospermum and 30-40 parts of liquor, respectively treating the raw materials, and mixing the raw materials; filling in a jar, thereby obtaining the product. The made burned pepper chilli sauce in the invention has outstanding burned pepper flavor and is spicy and full in taste, zero in burnt bitterness and pungent and delicious. The burned pepper chilli sauce disclosed by the invention has excellent quality guarantee period and can be preserved under normal-temperature closed conditions for 8-12 months, and the taste is not influenced.

The invention relates to printing lithography, in particular to a printing lithographic plate (UV-CTP) for laser digital scanning and the preparation method thereof. The preparation method of the printing lithographic plate (UV-CTP) comprises the following steps: firstly cleaning, neutralizing, electrolyzing and oxidizing aluminum plate strip materials and hole-sealing to obtain the plate base; then, spread-coating the prepared photosensitive coating liquid on the plate base through extruding; and obtaining the UV-CTP after drying. The UV-CTP plate, following the photosensitive CTP plate and the thermosensitive CTP plate, belongs to a novel plate which can be directly imaged through computer digital laser scanning without pretreatment. Compared with the conventional PS plate and CTP plate, the UV-CTP plate has the following characteristics and advantages that the aluminum plate rolling technique with low deformation rate and low surface defect ensures that the plate base of the plate has better physical properties, particularly, the UV-CTP plate is advantageous in manufacturing cost, preservation period and universality over other CTP plates; and the UV-CTP plate has the characteristics of high dot reducibility, high photosensitive speed, great operating latitude and wide application, etc., therefore, the UV-CTP plate is applicable to printing materials, such as metal, plastic, etc., by the UV ink.

The present invention provides a polyisocyanate composition and the like, which contains tertiary ammonium cations of an amine compound and a polyisocyanate that contains a sulfonate anion group in each molecule, and which is configured such that: the tertiary ammonium cations of the amine compound contain tertiary ammonium cations of at least one amine compound that is selected from among amine compounds of general formulae (1) and (2); and the content of the tertiary ammonium cations of the selected amine compound is 70% by mole or more relative to the total molar quantity of the tertiary ammonium cations of all amine compounds in the composition.

A starch / phenolic resin composite adhesive is composed of, by weight, 162 parts of starch, 243-648 parts of water, 216-378 parts of polyvinyl alcohol water solution, 0.22-0.76 part of ammonium persulfate, 1.62-4.86 part of sodium hypochlorite, 47.1-94.1 parts of phenol, 40.6-162.3 parts of formaldehyde solution and 2-16 parts of sodium hydroxide.Compared with an isocyanate modified starch adhesive, the starch / phenolic resin composite adhesive has the advantages that performance of the adhesive prepared can be regulated, production cost can be lowered, and the adhesive has higher storage stability, longer pot life, excellent waterproofness and high bonding strength.

An embodiment of the present invention relates to an adhesive for skin application, which contains a polyurethane polyol (P) and an organic isocyanate (C), and wherein the polyurethane polyol (P) is a reaction product of a polyol component (A) containing a polyether polyol (a1) and a polyisocyanate component (B), has a hydroxyl number of 2.0-45 KOHmg / g, has a weight average molecular weight of 25,000-300,000, and has a hydroxyl number of 1-5 KOHmg / g. The molecular terminal of the polyether polyol (a1) is a hydroxyl group, the content of primary hydroxyl groups in the hydroxyl group is 40 mol% or more, and the average number of hydroxyl groups is 2 or more.

The present application provides a polyaspartic acid coating composition comprising an aspartic acid ester compound and a polyisocyanate composition. The polyisocyanate composition comprises a polyisocyanate obtained from one or more diisocyanate monomers selected from the group consisting of aliphatic and / or alicyclic diisocyanates, the molar ratio x represented by formula (1) is 0.05-0.5 (inclusive), the molar ratio d represented by formula (4) is 0.02-0.5 (inclusive), and the molar ratio e represented by formula (5) is 0.02-0.5 (inclusive). The molar ratio x = (B + C + D) / (A + B + C + D) (1), the molar ratio d = D / (A + B + C + D) (4) the molar ratio e = E / A (5), in the polyisocyanate composition, A represents the content of isocyanurate groups, B represents the content of iminooxadiazindione groups, C represents the content (mol%) of uretdione groups, D represents the content (mol%) of allophanate groups, and E represents the content (mol%) of biuret groups.

The application provides a polyaspartic acid coating composition, which comprises an aspartic acid ester compound and a polyisocyanate composition, and the polyisocyanate composition comprises a compound selected from the group consisting of aliphatic and / or alicyclic diisocyanate A polyisocyanate obtained from one or more diisocyanate monomers in the group, wherein the molar ratio x represented by the formula (1) is 0.05 or more and 0.5 or less, and the molar ratio d represented by the formula (4) is 0.02 or more and 0.5 or less, and the molar ratio e represented by the formula (5) is 0.02 or more and 0.5 or less. Molar ratio x=(B+C+D) / (A+B+C+D) (1) molar ratio d=D / (A+B+C+D) (4) molar ratio e=E / A ( 5) In the above formula, in the polyisocyanate composition, A represents the content of isocyanurate groups, B represents the content of iminooxadiazinedione groups, C represents the content of uretdione groups (mol%), D represents the content (mol%) of allophanate groups, and E represents the content (mol%) of biuret groups.

The purpose of the present invention is to provide the following: a coating material with dramatically improved pot life; a coating film obtained from said coating material; a solar-cell-module backsheet that includes said coating film; and a solar-cell module. The present invention is a coating material characterized by containing the following: a fluorine-containing polymer that contains a curable functional group; and a block isocyanate based on hexamethylene diisocyanate.