41 results about "Organic solvent free" patented technology

The invention relates to a low-odor two-component composition as well as a preparation method and application thereof, and belongs to the technical field of woodware seal primers. The low-odor double-component composition disclosed by the invention comprises a component A and a component B, wherein the component A comprises epoxy resin and epoxy silane; in the component A, the weight of the epoxy silane accounts for 0-60 wt% of the total weight of the epoxy resin and the epoxy silane; the component B comprises an addition product, and the addition product is a Michael addition product obtained by reacting an unsaturated monomer M and amino silane Q according to a molar ratio of 1: (1.6-2.4). The low-odor two-component composition disclosed by the invention is extremely low in odor, very fast in early-stage polishing property establishment, good and excellent in surface effect and flexibility, free of an organic solvent or only low in organic solvent content, and capable of being widely applied to a woodware seal primer as a composition so as to improve the performance of a woodware coating.

The invention discloses an environment-friendly waterborne polyurethane glove and a preparation method thereof. The environment-friendly waterborne polyurethane glove comprises a glove core and an environment-friendly waterborne polyurethane layer wrapping the surface layer of the glove core. The environment-friendly waterborne polyurethane layer is prepared from the following raw materials in parts by mass: 20 to 35 parts of isocyanate, 40 to 60 parts of bio-based polyol, 3 to 8 parts of a fluorine-containing chain extender, 0.5 to 3 parts of nano cellulose, 1 to 5 parts of an environment-friendly cross-linking agent, 0.3 to 1.5 parts of a nonionic emulsifier, 2 to 6 parts of an environment-friendly plasticizer, 0.1 to 0.5 part of a low-toxicity preservative and 15 to 30 parts of deionized water. The preparation method has the advantages that no organic solvent is contained, no VOCs are discharged in the production process, the green chemistry principle is met, and the overall strength and performance are higher.

The present invention provides a UV-curable composition containing a silicon atom, which has a cured product with a low refractive index and excellent workability when applied to a substrate. The UV-curable composition of the present invention is characterized by containing one or more organosilicon compounds (A) having an average of one or more UV-reactive functional groups per molecule, having a viscosity of the entire composition of 80 mPa-s or less as measured at 25°C using an E-type viscometer, and being free of an organic solvent, and having a cured product with a refractive index of 1.45 or less as measured at 25°C at a wavelength of 589 nm.

The present invention provides protein-polymer conjugates, and methods for generating biocompatible scaffolds formed of hydrogels comprising the conjugates and use of the scaffolds for tissue regeneration. The present invention provides improved processes for the preparation of the conjugates, wherein the conjugates of the invention are preferably produced in an environmentally friendly process avoiding polar organic solvents.

The present application claims a kind of deep-drawing and high-temperature-resistant block structure polyurethane adhesive for lithium ion battery packaging and its preparation method, the adhesive is prepared by uniformly mixing the following components by weight parts: 100 parts branched liquid rubber polyol-polyether-branched liquid rubber polyol polyurethane copolymer;3-5 parts high molecular weight ultraviolet light initiator;20-35 parts isocyanate end-capped high-temperature-resistant hydrolysis polyester polyol.Compared with the solvent-based polyurethane adhesive on the market at present, the adhesive of the present application does not contain organic solvent, has the advantages of non-toxic, safe to use, environment-friendly, etc., and its water resistance, yellowing resistance, deep-drawing resistance, high-temperature resistance and other properties are very outstanding after composite curing with the substrate, especially suitable for the special requirements of lithium ion battery aluminum-plastic composite packaging material.

A film with a hydrophobic water-insoluble dye embedded in polyvinyl alcohol (PVA) is disclosed. The dye is uniformly distributed throughout the film and the film has substantially no organic solvents. The film may be attached to the center of a contact lens. Such a contact lens may be used to correct or improve color vision for people with a color vision deficiency.

The invention provides a method and formula tion for cleaning a soiled substrate, the method compris;.ig the treatment of the moistened substrate with a formulation comprising a multiplicity of polymeric particles, wherein the formulation is free of organic solvents. Preferably, the substrate is wetted so as to achieve a substrate to water ratio of between 1:0.1 to 1:5 w / w. Optionally, the formulation additionally comprises at least one cleaning material and, in this embodiment, it is preferred that the polymeric particles are coated with the at least one cleaning material. Preferably, the cleaning material comprises a. surfactant, which most preferably has detergent properties. Most preferably, the substrate comprises a textile fibre. Typically, the polymeric particles comprise particles of most preferably in the form of nylon chips. The results obtained are very much in line with those observed when carrying out conventional dry cleaning processes and the method provides the significant advantage that the use of solvents, with all the attendant drawbacks in terms of cost and environmental considerations, can be avoided

A method for producing a cellulose nanofiber capsule according to the present invention includes forming a Pickering emulsion by irradiating a mixture containing cellulose nanofibers, water, and fluid carbon dioxide with ultrasonic waves in a closed container; and facilitating encapsulation using cellulose nanofibers from the Pickering emulsion by opening the closed container. The present invention enables encapsulation using the cellulose nanofibers from a Pickering emulsion that does not contain an organic solvent, for example, and is useful in the technical fields of pharmaceutical agents, foods, and cosmetics, for example.

The present application relates to a kind of two-component composition and its preparation method and application, belong to wood sealing primer technical field.The two-component composition described in the present application, include component A and component B;Wherein: the component A includes epoxy resin a1 and epoxy silane;In the component A, the weight of the epoxy silane accounts for 18-80wt% of the total weight of the epoxy resin a1 and the epoxy silane;The component B includes adduct and aminosilane;In the component B, the weight of the adduct accounts for 10-80wt% of the total weight of the adduct and the aminosilane.The two-component composition of the present application is low in odor, hardness is established and early polishing is established very fast, pot life is extremely excellent, simultaneously with excellent surface effect, flexibility, does not contain organic solvent or only has low content of organic solvent, can be widely applied as composition in wood sealing primer, to improve the performance of wood coating.

An organoboron covalent organic network impregnated with at least one salt selected from alkali metal salts and alkaline-earth metal salts. The impregnated organoboron covalent organic network is substantially free of organic solvent. A method for preparing an impregnated organoboron covalent organic network, the use thereof as a solid electrolyte in an all-solid-state battery, and a separator for an all-solid-state battery, an electrode for an all-solid-state battery and an all-solid-state battery comprising such an impregnated organoboron covalent organic network.

This invention relates to the field of ink technology, and in particular to a water-based alkyd resin binder for engraving gravure ink, its preparation method, and its application. It is prepared from components comprising the following weight percentages: 5-40% vegetable oil fatty acids, 5-40% polybasic acids, 5-40% polyols, 0.01-1% catalyst, 1-30% tackifier, 1-20% acid anhydride, 1-15% alkaline neutralizer, and 1-15% water. The water-based alkyd resin binder for engraving gravure ink of this invention does not contain organic solvents. The organic solvent content of the engraving gravure ink prepared using this binder can be reduced by more than 30%. During the ink printing process, the ink has high viscosity and good transfer properties. Alkaline substances and surfactants can be eliminated from the wiping solution; clean water can be used directly for wiping, greatly reducing the difficulty and cost of waste liquid post-treatment.

The invention relates to a preparation method and application of dencichine, and belongs to the field of Chinese herbal medicine extraction and separation. The method comprises the following specific steps: taking pseudo-ginseng, pseudo-ginseng flowers, pseudo-ginseng stems and leaves, a whole pseudo-ginseng plant, decoction dregs after notoginsenoside extraction, rhizoma panacis majoris and American ginseng as raw materials, performing coarse crushing or direct feeding, performing water extraction, concentrating an extracting solution, performing centrifugation, enabling centrifugate to pass through an ultrafiltration membrane, concentrating a membrane-passing solution, purifying a concentrated solution through cation exchange resin, collecting a dencichine-containing segment, and performing freeze drying to obtain the pseudo-ginseng extract. And concentrating and drying to obtain dencichine. And selecting an ultrafiltration membrane to remove impurities and enrich dencichine. And purifying the dencichine by selecting ion exchange resin to obtain the dencichine with the content of more than 95%. The method has the advantages that the operation steps are simple and easy to repeat, the conditions are easy to control, the preparation amount is easy to amplify, the separation material can be repeatedly used, the environmental pollution is small, the obtained final product does not contain organic solvent residues, and the content can reach 95% or above.

The present invention provides protein-polymer conjugates and hydrogels containing same, along with methods for generating biocompatible scaffolds formed of hydrogels containing the conjugates and using the scaffolds for tissue regeneration. The present invention also provides improved processes for the preparation of the conjugates, wherein the conjugates of the invention are preferably produced in an environmentally friendly process avoiding polar organic solvents.

An ultraviolet (UV) curable organopolysiloxane composition with excellent workability when applied to a substrate is provided, in which a product obtained by curing the composition has a low dielectric constant. The UV curable organopolysiloxane composition comprises (A) one or more organosiloxane and / or organopolysiloxane having an average of two or more UV reactive functional groups in one molecule, and (B) one or more organosilane, organosiloxane, and / or organopolysiloxane having one UV reactive functional group in one molecule. An organic solvent is not included in the composition. In addition to components (A) and (B), the composition can comprise one or a plurality of additives selected from a group consisting of: (D1) nonionic surfactants not containing a silicon atom and are not acrylic; (D2) nonionic surfactants containing a silicon atom and having an HLB value of 4 or less; and (D3) silicone oils with a viscosity of 90 mPa-s or less at 25° C.

The invention discloses a full-water-based transparent coating for metal packaging, and belongs to the technical field of water-based coatings. The coating is a full water emulsion type dispersion system, and is prepared by taking an acrylate monomer, acrylonitrile and a hydroxyl-containing acrylic monomer as main film-forming substances through an anionic emulsion free radical emulsion polymerization mode. The coating does not contain an organic solvent in the preparation and use processes, film forming and curing are completed through moisture evaporation and cross-linking reaction after coating, and a transparent and compact protective coating can be formed at a low baking temperature. The obtained coating has good adhesive force, solvent resistance and flexibility, can meet the deformation requirements of metal packaging in the forming machining processes of stamping, stretching and the like, does not need to carry out chromate passivation treatment on a metal base material, meets the safety requirements of food contact materials, and is suitable for protective coating of the surfaces of metal packaging materials such as aluminum materials and tinplates.

The invention relates to a method for extracting and preparing high-purity ginseng flavonoid glycoside and quercetin-3-O-beta-D-glucopyranose-(1-> 2)-beta-D-galactopyranoside from stems and leaves of panax notoginseng. The method comprises the following specific steps: coarsely crushing dry stems and leaves of pseudo-ginseng, extracting with ethanol and water, and carrying out chromatography twice with different types of macroporous adsorption resin columns, so as to simultaneously prepare high-purity ginseng flavonoid glycoside and quercetin-3-O-beta-D-glucopyranose-(1-> 2)-beta-D-galactopyranoside (the purities are respectively greater than 97% and 93%). The process is simple, convenient and feasible, the transfer rates are high (the transfer rates are respectively greater than 90% and 86%), the high-purity ginseng flavonoid glycoside and quercetin-3-O-beta-D-glucopyranose-(1-> 2)-beta-D-galactopyranoside can be stably obtained, large-scale preparation and industrial production can be realized, and the used solvent is non-toxic, easy to recover, reusable, low in cost and suitable for industrial production. The environment is not polluted, and the obtained final product does not contain organic solvent residues.

The present application relates to the technical field of digital inkjet ink, in particular to a water-based yellow polymer ink and a preparation method thereof. The raw materials of the water-based yellow polymer ink include a yellow ceramic pigment, a water-soluble polyacrylic acid polymer, a thickening agent, a surface tension mixture, and water. Specifically, 0.2-1.0 mg of the water-soluble polyacrylic acid polymer is contained in each cubic meter of the water-based yellow polymer ink, and 13-16% by volume of the yellow ceramic pigment is contained in each 100 parts of the water-based yellow polymer ink. In addition, 0.01-15% by mass of the thickening agent and 0.01-0.1% by mass of the surface tension mixture are contained in each 100 parts of the water-based yellow polymer ink. The ink does not contain organic solvents and volatile organic compounds, and still has good dispersibility and inkjet properties. The harm caused by the organic solvents and volatile organic compounds in the ink is improved.

The invention discloses a reactive microgel water dispersion for a two-component waterborne epoxy coating and a preparation method of the reactive microgel water dispersion, and belongs to the technical field of waterborne epoxy resin preparation. Comprising the following steps: 1) mixing epoxy resin and flexible diglycidyl ether, adding hydrophobic and hydrophilic long-chain amine chain extenders at 60-120 DEG C, and keeping the temperature for 1-6 hours to obtain an epoxy-terminated prepolymer, and 2) adding flexible steric hindrance amine into the prepolymer, reacting at 50-90 DEG C for 1-6 hours, adding pure water under high-speed stirring, and dispersing to obtain the microgel water dispersion. The prepared microgel water dispersion does not contain an organic solvent, can improve the anti-sagging performance, the anti-settling performance and the sharp edge anti-corrosion performance of a special base material when being used in a two-component waterborne epoxy coating, and can be subjected to a curing reaction with epoxy resin without shortening the working life of the coating.

The invention provides a bacillus amyloliquefaciens microbial agent and a preparation method thereof, and belongs to the technical field of microbial agents. According to the bacillus amyloliquefaciens microbial inoculum provided by the invention, through a specific carrier and auxiliary agent system, the stability, wettability and suspension property of the microbial inoculum are remarkably improved, so that the microbial inoculum is easy to store, transport and use, good in adhesion and uniform in dispersion during application, and the broad-spectrum bacteriostatic action of a strain can be effectively exerted. The microbial inoculum is mature in production process, low in cost, free of organic solvents and good in ecological compatibility, an efficient and environment-friendly solution is provided for green prevention and treatment of soil-borne diseases of crops, dependence on chemical pesticides is reduced, and sustainable development of agricultural production is promoted.

The invention relates to the technical field of preparation of polyisocyanate compositions, and provides an environment-friendly polyisocyanate composition and application thereof, and the polyisocyanate composition can improve curing and drying time and impact resistance in downstream application. The composition is an NCO-terminated product prepared by reacting materials comprising toluene diisocynate and at least two dihydric alcohol compounds with different molecular weights and a number-average molecular weight of 400-3000, moreover, the composition does not contain an organic solvent, and the content of free isocyanate monomer is less than 0.1 wt%; during the reaction, the toluene diisocynate is subjected to contact reaction with the dihydric alcohol compound with the lowest molecular weight at the temperature of 2-92 DEG C, and then is subjected to contact reaction with the rest dihydric alcohol compounds at the temperature of 98-180 DEG C; the molar ratio R1 of the isocyanate group of the toluene diisocynate to the hydroxyl group of the dihydric alcohol compound with the lowest molecular weight is 6-22.

[Problem] The purpose of the present invention is to provide: a heat-curable composition which exhibits excellent transparency, exhibits good thixotropy, and provides a cured product exhibiting excellent heat resistance when heated; and a use of the heat-curable composition. A thermosetting composition containing: (A) a siloxane having at least one alkenyl group and at least one monovalent aryl group in the molecule and having 5 or less silicon atoms; (B) an aromatic polymer having a reactive functional group; and (C) a thermal radical initiator in an amount of 0.1-5 parts by mass per 100 parts by mass of the total of component (A) and component (B), the mass ratio of component (A) to component (B) being in the range of 40: 60 to 80: 20, and substantially no organic solvent being contained.

The invention relates to an amino acid surfactant as well as a preparation method and application thereof in preparation of a termite insecticide, and belongs to the technical field of pest control. The N-acylamino acid is prepared by selecting specific fatty acid methyl ester and utilizing a mixture of alkaline earth metal oxide and phosphate as a catalyst. Specific N-acylamino acid prepared by a specific preparation method is used as an amino acid surfactant, and is mixed with a cosurfactant consisting of a betaine surfactant and a methyl taurine surfactant and water to obtain the insecticide for preventing and treating termites. The termite insecticide disclosed by the invention does not contain an organic solvent, a green amino acid surfactant is used as a killing repellent, and meanwhile, a green auxiliary surface active component with solubilizing and dispersing effects is added, so that the wettability of a system is enhanced; the material is safe, nontoxic and excellent in degradability; and the termite repellent is good in repelling and killing performance and is an alternative scheme for preventing termites.

The invention belongs to the field of food preservation, and particularly relates to an antibacterial preservative based on a chitosan-based material as well as preparation and application of the antibacterial preservative. The chitosan-based material comprises a micron-sized structure and a nano-sized structure distributed on the micron-sized structure. In the preparation process of the antibacterial preservative, only water and recyclable ionic liquid without vapor pressure are used for reaction, the cost is low, safety and environment friendliness are achieved, and the prepared antibacterial preservative does not contain organic solvent, acid, alkali and other substances, and is high in safety and environmentally friendly.

The invention provides an adhesive for repairing a Betyesian cultural relic, a preparation method of the adhesive and a repairing method of the Betyesian cultural relic, and relates to the technical field of cultural relic repairing. The adhesive for repairing the Betyesian cultural relics comprises the following components in parts by weight: 30-60 parts of a gymnadenia conopsea extract, 5-20 parts of an elm bark extract, 5-20 parts of a gelatin extract, 2-10 parts of a rosin extract, 1-2 parts of a eucommia ulmoides extract and 1-2 parts of a linseed extract. All the components of the adhesive are natural extracts, and the adhesive does not contain harmful substances such as organic solvents, and has the properties of high safety, high bonding strength and good softness and durability.

This application discloses an electron beam-cured solvent-free long-lasting antistatic coating, an antistatic coating layer, an antistatic product, and a preparation method. The provided electron beam-cured solvent-free long-lasting antistatic coating, by weight percentage, comprises 40%–70% oligomer resin, 20%–50% reactive diluent, 5%–15% long-lasting conductive material, and 0.5%–3% additives; the long-lasting conductive material includes one or more of ionic liquids and polymeric long-lasting antistatic agents. The provided electron beam-cured solvent-free long-lasting antistatic coating contains oligomer resin, reactive diluent, long-lasting conductive material, and additives, but does not contain organic solvents. The cured coating achieves long-lasting and stable antistatic properties.

The invention provides a cleaning solution and a cleaning method for a semiconductor wafer after etching and ashing, and belongs to the technical field of semiconductor wafer manufacturing processes. The cleaning solution for the etched and ashed semiconductor wafer, provided by the invention, comprises the following components in percentage by mass: 35-50% of fluoride, 10-25% of organic amine, 12-22.5% of a chelating agent, 0.01-1% of a non-azole corrosion inhibitor and the balance of water, and the cleaning solution does not contain any one of an organic solvent, a strong acid and a strong alkali. The cleaning solution provided by the invention contains fluoride with higher content and adopts the non-azole corrosion inhibitor, so that high-density residues generated after plasma ashing can be completely and efficiently removed, copper, copper alloy, a barrier layer and a low-k dielectric layer are not corroded, residues caused by the fact that the azole corrosion inhibitor is adsorbed on the surface of a wafer in the subsequent cleaning step are avoided, and the cleaning solution is suitable for large-scale production. And moreover, the coating does not contain an organic solvent, and is environment-friendly.

The present application relates to a kind of from Panax stem leaf extraction, preparation high purity ginseng flavonoid glycoside and quercetin-3-O-β-D-glucopyranose-(1→2)-β-D-galactopyranoside method.The specific steps of the method are as follows: after Panax stem leaf is coarsely crushed, ethanol water extraction is carried out, and high purity ginseng flavonoid glycoside and quercetin-3-O-β-D-glucopyranose-(1→2)-β-D-galactopyranoside (purity is greater than 97% and 93% respectively) can be prepared simultaneously by two times different type macroporous adsorption resin column chromatography.The present application is simple and feasible, and the transfer rate is high (the transfer rate is greater than 90% and 86% respectively), and high purity ginseng flavonoid glycoside and quercetin-3-O-β-D-glucopyranose-(1→2)-β-D-galactopyranoside can be stably obtained, mass production and industrial production can be realized, and the solvent used is non-toxic, easy to recover, reusable, low cost, no pollution to the environment, and the final product obtained does not contain organic solvent residue.

The invention discloses a propanil suspending agent as well as a preparation method and application thereof. The propanil suspending agent comprises the following components in percentage by weight: 10%-40% of propanil, 3%-15% of metal salt, 3%-8% of an anionic dispersant, 3%-5% of an anti-freezing agent, 0.1%-0.2% of a defoaming agent, 0.1%-0.2% of a thickening agent and the balance of water. After normal temperature, heat storage and freeze thawing, the particle size of the propanil suspending agent keeps high stability. Compared with missible oil, the propanil suspending agent disclosed by the invention does not contain an organic solvent, so that not only can the production cost be saved, but also the damage of chemical drugs to rice can be reduced; compared with wettable powder, the propanil suspending agent has the advantages that no dust is generated in the production and processing processes, and the harm of the dust to operators can be avoided. Besides, the propanil suspending agent disclosed by the invention can be used for effectively preventing and removing gramineous weeds in paddy fields and is safe to rice, so that the propanil suspending agent has very high market value.