1376results 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.

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

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 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.

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

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 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.

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

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

To provide an aqueous coating composition capable of forming a coating film with superior transparency, adhesion, and weather resistance while exhibiting superior coating stability.SOLUTION: An aqueous coating composition comprising emulsion particles (A), an ultraviolet absorber (B) having a biphenyl triazine skeleton, and a non-protonic organic solvent (C) having a boiling point of less than 100°C.SELECTED DRAWING: None

A polyurethane-acrylic composition, and particularly, a polyurethane-acrylic composition that is environment friendly and exhibits low heat shrinkage, which is suitable for use as a waterproof coating for a construction structure, especially for a roof. The polyurethane-acrylic composition includes:—at least one aqueous acrylic polymer dispersion, preferably in an amount of 17-56 wt %, preferably 20-45 wt %, based on the total weight of the composition; and—at least one aqueous polyurethane dispersion, preferably in an amount of 4-30 wt %, preferably 4-10 wt %, based on the total weight of the composition; wherein the composition is free of a coalescing agent.

Provided is a carbon nanotube dispersion liquid having excellent dispersibility. A carbon nanotube dispersion liquid, which contains at least carbon nanotubes, oxidized cellulose nanofibers, and water, and which is characterized in that the oxidized cellulose nanofibers having a fiber length of 50-250 nm account for 85% or more of the oxidized cellulose nanofibers.

A multi-layer intumescent coating system comprising an intumescent coating layer A and a non-intumescent coating layer B directly thereon wherein: (i) the coating layer A comprises or is formed from an intumescent coating composition comprising a) a binder; and (ii) the coating layer B comprises or is formed from a non-intumescent coating composition comprising a) a binder; and b) fibers.

Matrix-filled liquid radiation curable resin compositions for additive fabrication are described and claimed. Such resins include a cationically polymerizable component that is an aliphatic epoxide, a multifunctional (meth)acrylate component, a cationic photoinitiator, a free-radical photoinitiator, and a matrix of inorganic fillers, wherein the matrix further constitutes prescribed ratios of at least one microparticle constituent and at least one nanoparticle constituent. Also described and claimed is a process for using the matrix-filled liquid radiation curable resins for additive fabrication to create three dimensional parts, and the three-dimensional parts made from the liquid radiation curable resins for additive fabrication.

Provided is a method of producing an electrical steel sheet with an insulating coating that excels in both punchability and weldability under more severe evaluation conditions. The method of producing an electrical steel sheet with an insulating coating includes a process of preparing a water-based coating material and a process of applying the water-based coating material to the surface of an electrical steel sheet and heating and drying to form an insulating coating. The water-based coating material contains resin, an inorganic component, an optional organic reductant, an optional B compound, and water. 50 mass% or more of the resin consists of one or both of emulsion resin and dispersion resin. The water-based coating material has a viscosity of 1.0 mPa·s or more.

A process of preparing a bimodal binder composition comprises providing a core and polymerizing monomers to form a non-film forming polymer on the core. Monomers are polymerized to form a film forming polymer on the non-film forming polymer to substantially encapsulate the non-film forming polymer, thereby forming particles of a first mode of the bimodal binder composition. Particles of a second mode of the bimodal binder composition are also formed by the polymerization of monomers to form the film forming polymer. The process further comprises a step of forming at least one void in the core. The particles of the first mode have an average particle size ranging from 200 nm to 650 nm, and the particles of the second mode have an average particle size less than the average particle size of the particles of the first mode. The particles of the second mode do not contain a void.

A primer composition for surface printed flexible packaging, an ink set, a surface printed material, and an inkjet printing method are provided which, in the case of an inkjet image formed after application of the primer composition, enable impart a coating film with excellent solid uniformity, bleeding resistance, scratch resistance, alcohol resistance and heat resistance. The primer composition for surface printed flexible packaging contains a polymer-emulsified acrylic resin emulsion, an N-oleoyl sarcosine, a hydrazine compound that has two or more hydrazine residues in the molecule, and a wax, wherein the content of the acrylic resin emulsion is 3-40 mass% in terms of solid content, and the glass transition temperature of the acrylic resin emulsion is between -40 and 30°C.

Disclosed herein is coating composition comprising graphene nanoparticles derived from a carbon gas and one or more dispersing agents dispersed in an emulsion or a resin. Also disclosed herein are methods for preparing such a coating compositions, and the use of such a coating composition in heat exchange systems.

A one-component waterborne coating composition comprising: a) an aqueous dispersion of polymer particles, which polymer particles comprise an anionic-stabilized copolymer having a Mw of at least 100,000 g / mol and self cross- linking functionality, wherein the copolymer is an acrylic copolymer, an acrylic-vinyl copolymer, or a polyurethane vinyl-acrylic copolymer; and b) an organosilane; wherein: the organosilane is unreactive towards carboxylic acid functionality; and the organosilane is present in an amount of at least 5 wt.% of the total solids of the coating composition; and a coated substrate comprising a substrate and a coating, which coating is obtained by applying said coating composition to the substrate and allowing the coating composition to dry.

The blocked isocyanate composition of the present invention comprises a blocked isocyanate that is derived from a triisocyanate compound (A) represented by general formula (I), a diol compound (B), a hydrophilic compound (C) and a blocking agent (D).

The purpose of the present invention is to provide a silicone-release-type polyester film having exceptional lightweight separation properties and layer uniformity, a method for manufacturing the silicone-release-type polyester film, and the like.　A silicone-release-type polyester film having an application layer on at least one surface of a polyester film, the application layer being formed using a release-type coating composition of an aqueous dispersion of alkenyl-group-containing silicone, an aqueous dispersion of silicone having hydrogen atoms directly bonded to Si atoms represented by Si-H groups, and an aqueous dispersion including a platinum-based catalyst, wherein the amount of platinum element in the platinum-based catalyst is greater than 120 ppm and less than 600 ppm relative to the weight of the alkenyl-group-containing silicone, the platinum-based catalyst includes platinum-based catalysts that contain a crosslinking-reaction-suppressing agent and platinum-based catalysts that do not contain a crosslinking-reaction-suppressing agent, and the thickness of the application layer is 5-70 nm inclusive.

Provided is a polyurethane aqueous dispersion that, when used as an additive for imparting adhesion, can be used to produce adhesives, coatings, and the like that form a cured film (i.e., an adhesive layer) whose physical properties, such as strength, are less susceptible to change even with temperature fluctuations, and has excellent storage stability. The polyurethane aqueous dispersion comprises resin particles formed from a polyurethane having terminal hydroxyl groups and water as a dispersion medium. The polyurethane comprises structural units derived from a polyol including a polyether polyol; structural units derived from a polyisocyanate including an aliphatic polyisocyanate and an alicyclic polyisocyanate; and structural units derived from a polyol containing an acidic group. The polyurethane has an acid value of 40 mgKOH / g or less, and is obtained by reacting a polyisocyanate with a polyol at a ratio of 0.5 ≤ [NCO group / OH group (molar ratio)] ≤ 0.95.

To improve the adhesion of the coating film to the resin and the resistance of the coating films to blocking each other. [Solution] The polyurethane aqueous dispersion according to the embodiment comprises a polyurethane resin (A) containing a polyester polyol as a constituent component dispersed in an aqueous dispersion medium, and includes a carbodiimide group-containing compound (B) and a salt (C) of an acid and an alkali metal. The polyurethane resin (A) has carboxyl groups, and the salt (C) is at least one selected from the group consisting of bicarbonates, carbonates, monocarboxylates, dicarboxylates, tricarboxylates, and phosphates, and the salt (C) exists in an ionized state in the aqueous dispersion medium.