39results about How to "No gelation" patented technology

The invention discloses a production method of water-in-water colorful paint containing color sand. The production method comprises the following steps: (a), preparing a protection glue solution; (b), producing basic slurry; (c), matching the color of the basic slurry; (d), performing color point granulation; (e), producing coating gloss oil; (f), producing finished paint. Granite-shaped particle containing particles are formed on the surface of the paint produced by the method, imitated-marble granite paint can be prepared from the paint, formed patterns are simple, artistic and elegant, and the paint prepared by the method is level in surface and not easy to form ash deposition, can keep the overall appearance longer, and has stain resistance; the special coating gloss oil can keep the color on the surface of the paint to be permanent and fresh, and has weather resistance; the paint is high in water resistance and rot resistance, is neither absorbed by a wall surface nor damaged in rainy days, and can protect the overall shapes of buildings.

The invention relates to a preparation method of a self-emulsified epoxy curing agent, wherein the preparation method comprises the following steps: a first step, adding an amine component and single epoxy functionality glycidyl ether to a container having nitrogen protection, and carrying out a reaction for 2-8 h at the temperature of 50-105 DEG C, to obtain an end-capped amine epoxy addition product; a second step, dropwise adding epoxy resin into the end-capped amine epoxy addition product, and carrying out a reaction for 1-8 h at the temperature of 20-100 DEG C, to obtain an intermediate product; and a third step, dropwise adding small molecular diglycidyl ether into the intermediate product, and carrying out an addition reaction for 2-8 h at the temperature of 20-100 DEG C, to obtain the self-emulsified epoxy curing agent. The self-emulsified epoxy curing agent has more excellent application period and physical properties, has shorter surface drying time, and can make epoxy resin cured at room temperature to form a hard paint film.

The invention discloses acellular bone matrix hydrogel with reserved natural hydroxyapatite and a preparation method of the acellular bone matrix hydrogel, and belongs to the field of bone regeneration and repair materials in tissue engineering. According to the organic-inorganic composite hydrogel, cortical bones or cancellous bones from the same source or different sources are used as raw materials, natural bone minerals of different degrees are reserved through degreasing, decellularization and decalcification treatment, then enzymolysis digestion and purification treatment are conducted, the pH and salt concentration of a solution are adjusted to physiological conditions, and then a pre-gel solution is obtained; and when in use, the temperature is raised to 37 + / -1 DEG C, and the hydrogel is formed through self-assembly. According to the bone tissue decellularized extracellular matrix hydrogel, natural hydroxyapatite components in bone matrixes are effectively reserved, hydroxyapatite and collagenous fibers are well combined and uniformly dispersed, and the bone tissue decellularized extracellular matrix hydrogel can be used as temperature-sensitive injectable hydrogel to be applied to bone tissue engineering and has bright application prospects.

The object of the present invention is to provide a room temperature cross-linkable synthetic resin emulsion composition, even if it uses a polymer compound having three or more hydrazine groups in the structure that can form a three-dimensional cross-linked structure as a cross-linking agent, it will not produce It gels and is excellent in storage stability. In addition, when it is applied to various applications, it is excellent in various physical properties such as water resistance and coating film strength. The synthetic resin emulsion composition of the present invention contains a water-soluble polymer compound, a carbonyl group-containing acrylate resin, and a hydrazine group-containing polymer compound having a weight average molecular weight of 5,000 or more and having three or more hydrazine groups in the molecule. The emulsion composition is excellent in various physical properties such as water resistance.

To provide an adhesive agent composition that has an excellent pot life, excellent adhesiveness between a metal substrate and a polyolefin resin substrate, chemical resistance, and moldability, and that contains an acid-modified polyolefin and a multifunctional polyisocyanate curing agent. An adhesive agent composition contains an acid-modified polyolefin (A), a multifunctional polyisocyanate curing agent (B), and an organic solvent (C), wherein the acid value of the acid-modified polyolefin (A) is 2-50 mg KOH / g-resin, and the acetone extract ratio is 0.01-2 mass%.

Disclosed is a polyimide film prepared from an aromatic tetracarboxylic acid component consisting essentially of 3,3',4,4'-biphenyltetracarboxylic dianhydride and an aromatic diamine component consisting essentially of not less than 65 mol phenylenediamine % but less than 97 mol % of p-phenylenediamine and not less than 3 mol % but less than 35 mol % of 2,4-toluenediamine.

The invention discloses water-in-water multicolor paint containing color sand. The water-in-water multicolor paint comprises color-sand-containing basic paint, a protective glue solution, cladding gloss oil and an addition agent; basic slurry is prepared from the following raw materials in parts by mass: 200-400 parts of water, 3-8 parts of cellulose ether, 7.5 parts of propylene glycol, 1 part of a moist dispersing agent, 1 part of a PH adjusting agent, 10 parts of a film-forming addition agent, 1 part of an antifoaming agent, 80-130 parts of a kaolin and heavy calcium powder mixture, 1-2 parts of barium metaborate, 200-400 parts of an acrylic emulsion, 1 part of bactericides, 1 part of a dispersing agent, 1 part of a stabilizing agent, 50 parts of 6.5% protective glue, 0.5-1 part of aqueous polishing paste, and 1-2 parts of sodium phosphate tripolymer. The water-in-water multicolor paint is level in surface and not liable to cause ash deposition, can maintain whole appearance for a long term, and has dirty resistance. The specially-made cladding gloss oil can maintain the color of the surface of the water-in-water multicolor paint containing color sand bright for a long time, and has weather resistance. The water-in-water multicolor paint has good water resistance and anti-corrosive properties, and protects the whole modeling of a building. Shaped patterns are plain, and elegant in appearance. Besides, the water-in-water multicolor paint has good stability and extremely high market economy value.

The invention relates to a honeycomb film made of a biodegradable polymer which has biodegradation properties as an anti-adhesion membrane for preventing adhesion after an operation, is excellent in handling properties, and exhibits a satisfactory adhesion preventive effect stably over a desired period of time, and to a production process of the same. Above all, the invention provides an anti-adhesion membrane of a honeycomb film made of polylactic acid as a biodegradable polymer and a phospholipid and a production process of the same.

The invention relates to a method for preparing dual-component hydrosol with a dispersed-phase aluminum component of boehmite nanometer crystal grains and a cerium component of cerianite nanometer crystal grains, and belongs to the field of inorganic nanometer materials. The method comprises the following steps of: adding alkali into mixed solution of Al3+ and Ce3+ salts to co-precipitate two kinds of metal ions; adding an oxidizing agent to oxidize Ce(OH)3 in the precipitate into overoxidation hydroxide of Ce4+; performing thermal decomposition on the overoxidation hydroxide of Ce4+ in the precipitate to form Ce(OH)4 (cerium hydroxide (IV)); and adding acid to peptize the precipitate to prepare boehmite-cerianite sol. The clear boehmite-cerianite dual-component hydrosol can be prepared by the method, and the dispersed phase of the hydrosol consists of nanometer crystal grains; and the crystal grains are not agglomerated and are uniform in size, and the size is generally 3 nanometers.

The invention relates to chitosan with high deacetylation degree and high molecular weight and a preparation method thereof. The preparation method comprises the following steps: dissolving chitin ina strong alkali solution to obtain a chitin-strong alkali solution; then, increasing the strong alkali content in the chitin-strong alkali solution to 35 to 45wt% in a manner of supplementing a strongalkali solution under the condition that the temperature is 0 to 10 DEG C; wherein the strong base is KOH or NaOH, and the deacetylation reaction is specifically carried out in an oil bath heater ora microwave reactor; the deacetylation degree of the prepared chitosan is 80-95%, and the viscosity-average molecular weight of the prepared chitosan is 7.9 * 10 < 5 >-9.0 * 10 < 5 > g / mol. Accordingto the preparation method disclosed by the invention, deacetylation is carried out under homogeneous conditions, so that the concentration of strong base and the temperature of deacetylation reactionare reduced, the process is simple, the conditions are mild, and the molecular weight of chitosan is remarkably improved; the prepared chitosan is high in deacetylation degree and high in molecular weight and has a great application prospect.

The invention discloses a platinum complex catalyst as well as a preparation method and an application thereof, and relates to the field of platinum complex catalysts. The platinum complex catalyst comprises p-hydroxy benzaldehyde, citric acid, chloroplatinic acid hexahydrate and isopropyl alcohol, wherein a mole ratio of p-hydroxy benzaldehyde to citric acid to chloroplatinic acid hexahydrate is (1.2-1.3): (0.8-1): 1. The catalyst can be used for catalyzing hydrosilylation, particularly used for catalyzing hydrosilylation of allyl glycidyl ether and trimethoxy silane and used for synthesizing KH-560. On the basis of a Speier catalyst, a proper amount of p-hydroxy benzaldehyde and citric acid is added, compared with a conventional platinum complex catalyst, the platinum complex catalyst can maintain higher catalytic activity, shorten the induction period of the reaction, improve the catalytic efficiency of the reaction and increase the yield of KH-560 simultaneously when used for synthesizing KH-560, and in terms of trimethoxy silane, the yield is up to 91.2%.

The invention discloses a preparation method for synthesizing fluorescent polymer nanoparticles on the basis of polyethyleneimine. The preparation method is implemented in steps as follows: solutions are prepared from polyethyleneimine and ascorbic acid respectively, mixed and then subjected to an acylation reaction, and the fluorescent polymer nanoparticles are prepared through one-step synthesis. The provided preparation method of the fluorescent polymer nanoparticles is simple and easy to operate, and the fluorescent polymer nanoparticles have good water solubility, have high fluorescence in the range of 350-370 nm and excellent stability, contain a large quantity of active groups allowed to be modified, can be used for the field of microimaging, biological probes, recognition and the like and have excellent application prospect.

The invention discloses a preparation method of low-cost mullite fibers. The preparation method comprises the following steps: firstly, preparing an aluminum carboxylate solution; preparing a silicon additive; and mixing the aluminum carboxylate solution with the silicon additive, reacting to obtain precursor sol, and concentrating and aging to obtain the mullite fibers. According to the invention, in the production process, harmful gases such as chlorine, nitrogen dioxide, sulfur dioxide and the like are not generated, the raw materials are low in requirement and easy to store, commercially available raw materials can be directly used, the technical problem that the commercially available aluminum hydroxide raw material cannot be used for preparing spinnable mullite fibers is solved, and the preparation process is simple and environmentally friendly.

An exhaust gas purifying catalyst compound whichis represented by a rational formula: (NH4)xMo2VxO3(3x+6) (wherein x is 2.8 to 3.2) and has a V / Mo atomic ratio of 3 / 2; and a method for preparing the catalyst compound, characterized as comprising reacting molybdenum oxide (MoO3) with ammonium metavanadate (NH4VO3) in the presence of water for a specific period of time. The catalyst is prepared without employed the activation by firing, which has been the obstacle to achieving high catalyst activity in the prior art, while realizing satisfactory complex formation of V and Mo, and thus is markedly enhanced in activity, especially at a low temperature, and also in durability.

To suppress clogging of a nozzle to stably inject a liquid material and to increase the working efficiency of a (organic EL) coating device equipped with the nozzle to eject a coating liquid or an organic EL material onto a substrate. The inner space SP of a nozzle body 41 constituting the nozzle 4a functions as a passage to pass an organic EL material. A filter 43 is disposed in the inner position on the passage and apart from the orifice 45a disposed at the top end of the nozzle. The filter 43 has filtering accuracy of 10 [mu]m and collects foreign matters and a gelled substance to prevent from reaching to the orifice 45a. Thus, clogging of the orifice 45a due to foreign matters or the like can be surely prevented.

The invention discloses a production method of water-in-water colorful paint containing color sand. The production method comprises the following steps: (a), preparing a protection glue solution; (b), producing basic slurry; (c), matching the color of the basic slurry; (d), performing color point granulation; (e), producing coating gloss oil; (f), producing finished paint. Granite-shaped particle containing particles are formed on the surface of the paint produced by the method, imitated-marble granite paint can be prepared from the paint, formed patterns are simple, artistic and elegant, and the paint prepared by the method is level in surface and not easy to form ash deposition, can keep the overall appearance longer, and has stain resistance; the special coating gloss oil can keep the color on the surface of the paint to be permanent and fresh, and has weather resistance; the paint is high in water resistance and rot resistance, is neither absorbed by a wall surface nor damaged in rainy days, and can protect the overall shapes of buildings.

The invention relates to an addition-type solution-type isolating agent and a preparation method thereof, and the isolating agent is an antistick coating base material. The isolating agent is prepared from an A composition (an isolating agent effective composition) containing vinyl polysiloxane, a platinum catalyst B composition and a hydrogen-containing polysiloxane C composition, and the A composition, the B composition and the C composition are subjected to an addition reaction and converted into a partially-crosslinked polysiloxane coating with isolating property. The isolating agent before curing is in the state of silicon oil, and the cured isolating layer is an elastic coating in the state of rubber. When being applied to specific release paper, the provided isolating agent shows excellent peeling performance and good usability, has no mobility and keeps a relatively high bonding rate.

The invention provides a device that can stably spit out coating liquid that contains organic EL material on a base plate through a nozzle. The internal space (SP) of a nozzle body (41) that forms the nozzle (4a) has the function as a flow path that drives the organic EL material (10a) to flow. Filters (43) are arranged on the flow path and the internal position of the pores (45a) that are arranged at the front end of the nozzle. The filter fineness of the filters (43) is 10 micrometer, thus the device can be used for collecting foreign matters and gelatinous solutes, etc. to prevent the foreign matters and the gelatinous solutes from reaching the pores (45a), thereby being capable of reliably preventing the pores (45a) from being blocked up by the foreign matters, and so on.

Provided is a process for efficiently producing a cationically curable condensed silicon compound. There was an unsolved problem that, in a condensation reaction, an oxetanyl group is subjected to ring-opening under acidic conditions, while gelation is easily caused under alkaline conditions. It was found that a silicon compound (C) having an oxetanyl group can be obtained without causing gelation even at a high concentration by a production process including a first step of separately subjecting a silicon compound (A) having four siloxane bond-forming groups and a silicon compound (B) havingan oxetanyl group to an alcohol exchange reaction with 1-propanol and a second step of subjecting silicon compounds (AP) and (BP) undergone the first step to hydrolytic copolycondensation under alkaline conditions at a specific ratio.

The invention provides a device that can stably spit out coating liquid that contains organic EL material on a base plate through a nozzle. The internal space (SP) of a nozzle body (41) that forms the nozzle (4a) has the function as a flow path that drives the organic EL material (10a) to flow. Filters (43) are arranged on the flow path and the internal position of the pores (45a) that are arranged at the front end of the nozzle. The filter fineness of the filters (43) is 10 micrometer, thus the device can be used for collecting foreign matters and gelatinous solutes, etc. to prevent the foreign matters and the gelatinous solutes from reaching the pores (45a), thereby being capable of reliably preventing the pores (45a) from being blocked up by the foreign matters, and so on.

Provided are: a composite oxide which is to be used as a positive electrode active material and is capable of achieving high low-temperature output properties even when no water washing treatment is performed; a method for producing the same; and a positive electrode active material which suppresses the formation of soluble lithium and does not cause gelling problems when adjusting the paste. Theprovided nonaqueous electrolyte secondary battery positive electrode active material is a lithium metal composite oxide powder comprising secondary particles obtained by agglomerating primary particles including lithium, nickel, manganese and cobalt, or comprising both the primary particles and the secondary particles, the active material being characterized in that: the interior of the secondaryparticles is a primarily porous structure; the pH of the slurry is 11.5 or less; the soluble lithium content is 0.5 (mass%) or less; the specific surface area is 3.0-4.0 (m<2> / g); and the porosity ismore than 50 and no more than 80 (%).

The invention belongs to the technical field of coatings, specifically relates to a thermal radiation protection coating for glass and a preparation method thereof, wherein the coating is prepared from the following ingredients in percentage by weight: 13-15 parts by weight of poly(ethylene adipate) with the end capped by toluene-2,4-diisocyanate; 11-12 parts by weight of 2-(1-piperidyl)ethyl isothiocyanate; 4-6 parts by weight of trimethylolpropane triacrylate; 5-7 parts by weight of waterborne fluorine-containing hydroxyl acrylic emulsion with a solid content of 45% and a content of fluorine monomer of 25 wt%; 45-48 parts by weight of organic solvent; 5-7 parts by weight of vinyl polydimethyl siloxane; 2-3 parts by weight of flatting agent; and 3-4 parts by weight of thickening agent. The thermal radiation protection coating for the glass prepared by the invention has the visible light transmittance up to 99% or higher without affecting the transmittance of the glass. In addition, the solar radiant heat absorption rate of the glass can be obviously reduced.

The invention provides a method for manufacturing a rubber composition for a tire, and the method comprises: a kneading step, wherein a closed kneading machine is used to knead a rubber material and a silane coupling agent together, the rubber material is obtained by mixture of 100 mass parts of raw material rubber for the tire and 5-150 mass parts of silicon dioxide; and a holding step, wherein at the lower part of the closed kneading machine, under high temperature, a rubber block obtained by kneading is kept for a predetermined time, therefore, heat required for reaction of silicon dioxide and the silane coupling agent is provided for the rubber block, wherein in the 100 mass parts of raw material rubber for the tire, 5-100 mass parts of styrene butadiene rubber with the molecular weight distribution Mw / Mn being below 2.3 and end modification, and / or 10-60 mass parts of tin modified polybutadiene rubber by lithium initiator polymerization, the in modified polybutadiene rubber is provided with 50-3000 ppm of tin atom content ratio, 5-50 mass% of ethylene combination amount, and less-than 2.0 of molecular weight distribution Mw / Mn.

A composition capable of radical polymerization and air are accommodated in a packaging bag prepared using a heat-sealable synthetic resin sheet. In a preferred form, the packaging bag has at least one layer that bars the passage of at least one of a solvent, a gas, visible light and ultraviolet light, such as a metal layer. For example, it is prepared from a sheet of 5-layer laminate structure consisting of, arranged from inside toward outside in sequence, synthetic resin sheet (1) / adhesive layer (2) / synthetic resin sheet (3) / metal layer (4) / synthetic resin sheet (5). The volume of air in the packaging bag is preferably in the range of 1 to 50% based on the volume of composition capable of radical polymerization, and the total thickness of sheets used in the packaging bag is preferably 50 to 300 mu m. The thickness of the metal layer is preferably 5 mu m or more. This packaging form is most suitable for a composition capable of radical polymerization, such as a resist ink, because not only can the aging stability of composition capable of radical polymerization during storage be ensured but also the safety during transportation can be ensured.

The application discloses a high temperature resistant resin and its preparation method and application, as well as a high temperature resistant coating containing the high temperature resistant resin and its preparation method and coating. The preparation method of the high temperature resistant resin comprises the following steps: monomer mixing; polymerization; The application also discloses the high temperature resistant resin prepared by the above method and the application of the resin. The application also discloses a high-temperature-resistant coating, which is prepared from the following raw materials in weight percent: resin; pigment and filler; dispersant; thickener; agent, stir, add pigments and fillers and thickeners and mix to obtain high temperature resistant coatings. The application also discloses a coating obtained by spraying the above paint. The high temperature resistant resin provided by this application has excellent temperature resistance, will not fall off or change color at 500°C, and the resulting coating will not fall off or change color at 600°C, and has excellent adhesion and mechanical properties.