1818results about "Emulsion paints" patented technology

The invention discloses a high-bio-based PHA-acrylate emulsion paint as well as a preparation method and application thereof, and belongs to the technical field of water-based paints. The film former of the latex paint comprises 60% to 90% of polyhydroxyalkanoate (PHA) with a moderate crystallinity of 40% to 60%, and 10% to 40% of a specific bio-based acrylate copolymer with a Tg of not higher than 5 DEG C. According to the invention, a core-shell microstructure in which a rigid PHA phase is wrapped by a flexible acrylate phase is constructed through a key process including ultrasonic treatment. According to the structure, low-temperature film forming can be achieved without a VOC coalescing agent, the bio-based content of an obtained paint film is higher than 70%, the VOC content is lower than 0.5 g / L, the scrub resistance is larger than 7000 times, and the technical problem that high bio-based content and high performance of a PHA coating are difficult to achieve at the same time is solved.

Improves the adhesion and UV resistance of coating films to resins. [Solution] The polyurethane aqueous dispersion according to the embodiment is prepared by dispersing a polyurethane resin (A) containing a polyester polyol as a constituent in an aqueous dispersion medium, and contains a carbodiimide group-containing compound (B) and a compound (C) having a group represented by the following general formula (1). The polyurethane resin (A) has a carboxy group, and the acid value of the polyurethane resin (A) is 5 to 25 mgKOH / g. In formula (1), R 1 and R 2 each independently represents a hydrogen atom or a hydrocarbon group having 1 to 3 carbon atoms, and * represents a bond. [Formula 1] JPEG0007629139000010.jpg23156

A coating composition for a substrate, which includes: a microcrystalline cellulose composition, at least one silane, at least one acid catalyst, a liquid dispersion phase, and optionally at least one inorganic filler. Also, the use of this composition for the release coating of a substrate such as a paper surface or a metal surface. Finally, an article having at least one surface is coated with the coating composition.

To provide an aqueous coating composition capable of giving a coating film which has an excellent appearance and suppresses yellowing while securing water resistance.SOLUTION: The aqueous coating composition contains a hydroxyl group-containing acrylic resin emulsion (A), a core-shell type acrylic resin dispersion (B), and a hydrophobic melamine resin (C). The core-shell type acrylic resin dispersion (B) has a C4-24 branched hydrocarbon group in a core part and has a hydrophilic resin in a shell part. The solid content mass ratio (A:B) of the hydroxyl group-containing acrylic resin emulsion (A) to the core-shell type acrylic resin dispersion (B) is 30:70-90:10.SELECTED DRAWING: None

Provided is a polyurethane resin composition capable of forming a coating that has high mechanical strength and solvent resistance and that also has scratch resistance and blocking resistance. In a composition containing a polyurethane resin, the polyurethane resin has a structural unit derived from a polyol, a structural unit derived from a polyisocyanate, and a structural unit derived from a polyamine, and the polyol includes a polycarbonate polyol having a structural unit derived from 1,10-decanediol, a polyol compound having an anionic hydrophilic group, a glycol compound represented by HO-(R1-O)n-H, and a polyhydric alcohol having three or more hydroxy groups. The glycol compound has a number-average molecular weight of 500 to 2,500, the polyhydric alcohol is included in an amount of 10% by mass or less relative to a total mass of the polyol, and the glycol compound is included in an amount of 30% by mass or more and 90% by mass or less relative to the total mass of the polyol.

The invention provides an environment-friendly water-based acrylic emulsion adhesive without containing an organic solvent. The environment-friendly water-based acrylic emulsion adhesive is prepared from the following raw materials: 55-60 wt% of eleostearic acid hydroxyethyl acrylate (TMA), 15-25 wt% of butyl acrylate (BA), 3-10 wt% of acrylic acid (AA), 2-5 wt% of a cross-linking agent, 3-8 wt% of modified soil and 0.5-1 wt% of an initiator as a solid phase; the liquid phase is deionized water, and the environment-friendly water-based acrylic emulsion adhesive is prepared through semi-continuous emulsion polymerization. The prepared environment-friendly water-based acrylic emulsion adhesive is high in biodegradability and low in VOC content, has the mechanical property matched with that of a traditional acrylic emulsion adhesive and also has the self-repairing capacity, waste materials can be treated by changing the temperature or pH condition, the environment-friendly water-based acrylic emulsion adhesive can be recycled for multiple times, and the recycling cost is reduced.

The invention relates to the technical field of coatings, in particular to an associative emulsion thickener for latex paint and a preparation method of the associative emulsion thickener. The associative emulsion thickener for the latex paint is formed by polymerizing a monomer A, a monomer B and a monomer C, the monomer A is prepared from tridecyl methacrylate, diethyl itaconate and isobornyl acrylate; the monomer B comprises methyl acrylate, acrylic acid and acrylic acid-2-hydroxyethyl ester; the monomer C is prepared from diacetone acrylamide, N-isopropyl acrylamide, N-dodecyl acrylamide and ethylene glycol dimethacrylate. The thickening agent has the advantages of environmental protection, high biocompatibility and good thickening effect, solves the problem of poor stability of latex paint at low temperature and high temperature, and improves the glossiness.

Provided is an aqueous coating composition with improved wet scrub resistance and freeze thaw stability, particularly substantially free of freeze-thaw additives. Also provided is an article prepared from the same.

To provide an exothermic coating capable of producing using carbon materials produced with vegetable raw materials as a carbon source maintaining strength, and CO2 reduction and an exothermic coating capable of maintaining the strength even in various temperature zones.SOLUTION: It is characterized by using carbon materials containing silicon components from plant-based raw materials with 5% or more silicon content as pigments, ranging from 1 wt% to 50 wt%. Moreover, by mixing carbides 19 with a high number of functional groups with graphene 113, it is also possible to supply not only direct current but also high voltage power such as alternating current while stabilizing strength.SELECTED DRAWING: Figure 3

A composition is provided that includes a graphene dispersion, a silicone microemulsion, a reactive siloxane emulsion, and water as a majority by weight of the composition. A process for imparting a durable shine to a vehicle surface is also provided. The composition is applied to the vehicle surface. The water is allowed to evaporate from the composition to form a coating imparting a durable shine to the vehicle surface. A coating is obtained after evaporation. The coating includes a silicone film formed by the evaporation of water from a silicone microemulsion and the cross-linking of a siloxane from an emulsion. Graphene particles are embedded in the silicone film. The coating has a thickness of between having a thickness of between 5 and 10,000 nanometers and a hardness of between 3 and 7 GPa.

A high-temperature-resistant water-based varnish, comprising the following components in parts by weight: 80-90 parts of an acrylic emulsion and 10-20 parts of a zinc ammonia polytetrafluoroethylene emulsion. The solid content of the acrylic emulsion is 45-55 wt %, and the solid content of the zinc ammonia polytetrafluoroethylene emulsion is 45-55 wt %. Further disclosed are a preparation method for the high-temperature-resistant water-based varnish and an obtained high-temperature-resistant coating; the temperature resistance of the obtained high-temperature-resistant coating is not less than 220° C.

The present invention provides a water-based binder for nanocellulose-based secondary battery electrode, comprising:a latex particle with a core-shell structure comprising: a core containing a rubbery polymer; and a shell formed by combining one or two monomers selected from the group consisting of an acryl-based monomer and a non-acryl-based monomer on the surface of the core through a chemical reaction; anda nanocellulose interacts with a functional group of the shell surface.

To provide a coated fertilizer having a hydrophilic surface.SOLUTION: A coated fertilizer comprises: a granular fertilizer core; a first coated layer that is formed on a surface of the granular fertilizer core and is composed of a first coating composition including an acrylic polymer; and a second coated layer that is formed on the first coated layer and is composed of a second coating composition including an acrylic polymer, fine silicon powder, polymer sponge powder, and a hydrophilic substance. A silica particle layer is provided on a surface of the fine silicon powder.SELECTED DRAWING: Figure 1

The present invention relates to an antifouling coating composition containing a water-dispersed elastomer resin and a hydrophilic silicone oil having an HLB of 6 or more. The present invention also relates to a method for producing the antifouling coating composition, the method comprising mixing a first liquid containing at least a water-dispersed elastomer resin with a second liquid containing at least a hydrophilic silicone oil having an HLB of 6 or more.

In order to solve the problem that the existing water-based conductive coating is poor in adhesive force on the surface of an aluminum foil containing greasy dirt, the invention provides a carbon material and a preparation method thereof, a water-based conductive coating and a carbon-coated aluminum foil, and the preparation method comprises the following steps: uniformly mixing water, an alcoholizing agent and the carbon material, and performing alcoholization treatment; modifying the alcoholized carbon material by using a surface modifier which comprises one or more of hydroxyalkanoates or phosphates, so as to obtain a modified carbon material; according to the invention, alcoholization treatment is carried out on the carbon material to increase hydroxyl groups for grafting on the surface of the carbon material; modifying the carbon material by using a surface modifier; the modified carbon material has certain rolling oil affinity, can cooperate with the characteristic of high oil absorption value of the carbon material when being applied to the water-based conductive coating, and can open'blocking 'of an oil film, so that polar groups in coating resin are in contact with a base material to generate acting force, and the adhesive force is improved; and the carbon material filling amount can be further increased to reduce the coating resistance.

An object of the present invention is to provide an aqueous dispersion composition containing polyester resin having high storage stability, film-forming properties, tackiness, adhesiveness, and water resistance. An aqueous dispersion composition containing polyester resin, comprises, a polyester resin (A), a coalescing aid (B), and an aqueous medium (C), wherein the coalescing aid (B) has a Hansen solubility parameter with a dispersion term (δd) of 15.4 MPa0.5 or more and less than 18.0 MPa0.5, a polarization term (δp) of 4.1 MPa0.5 or more and less than 9.1 MPa0.5, and a hydrogen bond term (δh) of 7.0 MPa0.5 or more and less than 12.3 MPa0.5.

To provide a coating composition capable of forming a coating film excellent in blocking resistance and anticorrosion properties.SOLUTION: The coating composition contains: (A-1) at least one pigment having an aspect ratio of 1 or more and less than 5 and selected from barium sulfate, silica, and calcium carbonate; and (A-2) a scaly pigment having an average particle diameter of 2-30 μm and an aspect ratio of 5 or more and less than 30. The mass ratio of (A-1):(A-2) is within the range of 90:10-70:30.SELECTED DRAWING: None

Coatings may be used to discourage agglomeration and dust formation when handling seeds. Aqueous emulsions suitable for coating seeds and other substrates may comprise an aqueous fluid, a film-forming polymer that is water-soluble or biodegradable, optionally, a plasticizer, and shellac particles dispersed in solid form in the aqueous fluid. The film-forming polymer is at least partially dissolved in the aqueous fluid. Optionally, the aqueous emulsions may comprise at least one effect pigment, and / or at least one wax, and / or one or more of at least one surfactant, at least one biocide, at least one preservative, at least one second film-forming polymer, at least one crosslinking agent, or any combination thereof.

To provide a composition for concrete protection and a kit, having high concrete protection performance.SOLUTION: A composition for concrete protection includes an aqueous emulsion of a polycarbonate-based urethane resin. The polycarbonate-based urethane resin has a glass transition temperature of -40°C or more and -15°C or less, a strength at break of 35 MPa or more and 100 MPa or less, and an elongation at break of 350% or more and 1000% or less.SELECTED DRAWING: Figure 1

A process for the application of an intumescent coating system to a substrate comprising (I) applying to a substrate an intumescent coating composition comprising i. an epoxy-based binder; ii. a curing agent; iii. an expansion agent; iv. an acid generating compound; and v. at least 5 wt. % water; and allowing said composition to cure to form an intumescent coating layer; (II) applying to a cured or partially cured intumescent coating layer, a top coat composition comprising an acrylic-based binder, a polyurethane binder or a silicone-based binder and at least 10 wt. % water so as to form a top coat layer.

The present invention relates to a process for producing a coating from an aqueous, radiation-curable coating composition, wherein the process comprises the steps in the sequence (1) to (4):(1) applying an aqueous, radiation-curable coating composition on a surface of a substrate,(2) drying the aqueous, radiation-curable coating composition, affording an at least partially dried coating composition,(3) irradiating the at least partially dried coating composition with UV light having a wavelength s 220 nm under inert atmosphere, followed by(4) irradiating with UV light having a wavelength 300 nm or with E-beam,wherein the aqueous, radiation-curable coating composition is a dispersion comprising:(A) at least one water-dispersible polyurethane (A), wherein the polyurethane (A) has a urea group (—NH—CO—NH—) concentration of at least 0.1 milli-equivalents per g of polyurethane (A) and of at most 2.6 milli-equivalents per g of polyurethane (A) and the polyurethane (A) is essentially free of radiation-curable, ethylenically unsaturated bonds,(B) at least one radiation-curable diluent (B) with a molar mass less than 750 g / mol and with an acrylate functionality of from 2 to 5, and(C) water and optionally organic solvent, whereby the optional organic solvent is present in an amount of at most 30 wt. %, based on the total amount of water and organic solvent,whereinthe amount of (A) is from 30 to 85 wt. % and the amount of (B) is from 15 to 70 wt. %,based on the total amount of (A) and (B).

The invention relates to the field of building materials, and particularly discloses a formaldehyde-removing odor-removing home decoration coating and a construction process thereof. The formaldehyde-removing odor-removing home decoration coating comprises a putty layer and an emulsion paint layer, wherein putty is prepared from the following raw materials: water, white cement, fly ash, coarse whiting, talcum powder, hydroxypropyl methyl cellulose ether, redispersible latex powder, an organic silicon defoaming agent and a formaldehyde-removing odor-removing agent; the latex paint is prepared from the following raw materials: water, acrylic emulsion, hydroxyethyl cellulose, potassium polyacrylate, a nonionic wetting agent, an organic silicon defoaming agent, calcined kaolin, coarse whiting, titanium dioxide, texanol ester alcohol, propylene glycol and a formaldehyde-removing odor-removing agent. The formaldehyde-removing odor-removing agent is prepared from polypropylene reticular fibers, nano titanium dioxide modified diatomite and mica sheets. The preparation method comprises the following steps: treating the base layer; puttying is conducted; and brushing emulsion paint. The formaldehyde-removing and odor-removing home decoration coating has the advantage of being excellent in formaldehyde-removing and odor-removing effect.

The invention provides a post-added nanocellulose enhancing auxiliary agent for latex paint coating and a preparation method and a use method thereof, and the preparation method comprises the following steps: mixing, stirring and heating butanetetracarboxylic acid, sodium hypophosphite and a nanocellulose solution to obtain an esterified nanocellulose solution; adding a silane coupling agent solution into the esterified nanocellulose solution to obtain a modified nanocellulose solution; dispersing nano silicon dioxide into absolute ethyl alcohol to obtain silicon dioxide dispersion liquid; adding a silane coupling agent solution into the silicon dioxide dispersion liquid, mixing, stirring and heating for reaction to obtain modified silicon dioxide powder; dispersing the modified silicon dioxide powder into absolute ethyl alcohol to obtain modified silicon dioxide dispersion liquid; adding the compound emulsifier solution into the modified silicon dioxide dispersion liquid, and shearing and emulsifying to obtain modified silicon dioxide emulsion; and adding a compatilizer into the modified nano cellulose solution, dropwise adding the modified silicon dioxide emulsion, and finally adjusting the viscosity.

This invention relates to the roofing, waterproofing, and building envelope industries. Disclosed herein are hybrid compositions of acrylic emulsion and polyurethane dispersion for coating roofs, facades, floors or vertical facings. The compositions combine the advantages of the excellent features of polyurethane compositions with the reduced cost of acrylic compositions in such a manner that a balance between both characteristics is shown. Also disclosed are methods for covering a roof, facade, floor or vertical facing with these compositions and the use thereof as a coating for roofs, facades, floors or vertical facings.

The present disclosure provides a coating composition and a process for its preparation. The coating composition of the present disclosure has good spreadability / coverage capacity compared to the conventional coating composition. The present disclosure provides a simple, economic and environment friendly process for the preparation of the coating composition.

To provide an aqueous ink composition which is excellent in alcohol dilution property and ink followability.SOLUTION: An aqueous ink composition contains an aqueous urethane resin and an aqueous medium, wherein the aqueous urethane resin contains an aqueous urethane resin (A1) and an aqueous urethane resin (A2), the aqueous urethane resin (A1) is an ether-based urethane resin having a glass transition temperature of -70 to -30°C, the aqueous urethane resin (A2) is an ester-based urethane resin having a glass transition temperature of 60 to 120°C, and the content of the total of the aqueous urethane resin (A1) and the aqueous urethane resin (A2) is 20 to 94 mass% with respect to the total mass of a non-volatile content in the aqueous ink composition.SELECTED DRAWING: None

Described herein is a polyester-polyurethane-poly(meth)acrylic hybrid dispersion obtainable by esterifying at least one polyurethane containing carboxyl groups, the at least one polyurethane having an acid number of more than 200 mg KOH / g to 400 mg KOH / g and at least one or more terminal carboxyl groups; with at least one polyester containing hydroxyl groups, the polyester having a hydroxyl number of 50 mg KOH / g to 300 mg KOH / g, to obtain a polyester-polyurethane; followed by polymerizing ethylenically unsaturated monomers at least including (meth)acrylic monomers by radical polymerization in the presence of the polyester-polyurethane where one or more solvents are present and / or employed, thereby obtaining the polyester-polyurethane-poly(meth)acrylic hybrid dispersion.

A paint composition includes fly ash, TiO2 and polymeric binder material, and wherein the fly ash has a d50 particle size of less than 4.0 μm.

To provide an environmentally friendly fire retardant thermal insulation paint, excellent in adhesiveness of a coating, difficult to fall off, and having relatively high fire retardancy, thermal insulation and crack resistance and a producing method thereof.SOLUTION: A fire-retardant thermal insulation paint is produced from raw materials composed, by weight percentage, of 8 to 15% styrene-acrylic emulsion, 10 to 18% adhesion promoter, 10 to 20% thermal insulation agent, 20 to 30% fire retardant, 2 to 5% wetting dispersant, 3 to 6% viscosity modifier, 4 to 9% other additives, and the remainder water. The producing method is as follows: In step S1, the viscosity modifier and water are mixed to prepare a mixed solution; in step S2, the adhesion promoter and wetting dispersant are mixed with the mixed solution to prepare a dispersion; in step S3, the fire retardant is mixed with the dispersion to prepare a flame-retardant dispersion; and in step S4, the styrene-acrylic emulsion, thermal insulation agent, and other additives are mixed with the fire-retardant dispersion.SELECTED DRAWING: None