Abstract: The invention relates to a powder paint comprising at least one base powder paint and at least one effect powder paint having effect pigments, said effect pigments being dispersed in a melt made from transparent effect powder paint. The invention also relates to a method for producing said type of powder paint and to an effect powder coating containing said type of powder paint.

Abstract: Systems and method for forming a nanocomposite material. One example of a nanocomposite material includes a first sulfur-based nanoparticle material defining a first nanophase and a second sulfur-based nanoparticle material defining a second nanophase, wherein the nanocomposite material is at least partially long-wave infrared (LWIR) transmitting, and the first nanophase and the second nanophase are co-dispersed to form interpenetrating networks with one another and each has a grain structure that is distinct from one another.

Abstract: A composite structure is provided, which includes a support, an active layer wrapping the support, a dendrimer grafted to the active layer through covalent bondings, and a plurality of anti-fouling groups, wherein each of the anti-fouling groups is grafted to terminals of the dendrimer through covalent bondings. The terminals of the dendrimer include amino group, hydroxyl group, or thiol group.

Abstract: Presented are compositions that can be used as protective coatings for agricultural (e.g., food) substrates. The compositions can comprise a compound of Formula I: and an additive, wherein the variables m, n, q, r, Ra, Rb, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12 and R13 are defined herein. The protective coatings formed from the compositions can be used to prevent food spoilage due to, for instance, moisture loss, oxidation, or infection by a foreign pathogen.

Abstract: There is provided a resin composition for a modeling material, used for shaping a modeling material by a manufacturing method for light curing molding using an ink-jet scheme, comprising (A) an ethylenic unsaturated monomer as a photocuring component, (B) a photopolymerization initiator, and (C) a surface adjusting agent, wherein the resin composition for a modeling material has surface tension Mt of 26.0 to 33.0 mN/m, and the resin composition for a modeling material has surface tension Mst represented by the following (i) expression of 33.0 mN/m or more, and this resin composition for a modeling material 4a can afford a light cured article having the good dimensional accuracy.

Abstract: To provide an aqueous ink for ink jet enabling the recording of an image having excellent character quality and excellent highlighter resistance immediately after the recording. An aqueous ink for ink jet includes a pigment and a urethane resin. The urethane resin has a unit derived from a polyisocyanate, a unit derived from a polyol having no acid group and a unit derived from a polyol having an acid group, the proportion of a unit derived from the polyol having an acid group present at the molecular terminal relative to the whole unit derived from the polyol having an acid group is 30% or less, and the aqueous ink has a dynamic surface tension of 55 mN/m or more at a lifetime of 10 msec.

Abstract: Provided is an aqueous ink that enables the recording of images having high optical density and excellent toughness and has excellent reliability. An aqueous ink for ink jet includes a pigment, a resin having an anionic group, a salt and a water-soluble organic solvent. The pigment is a self-dispersible pigment in which an anionic group is bonded to the particle surface of carbon black directly or through another atomic group, the resin has a weight-average molecular weight of 20,000 or less, the water-soluble organic solvent includes glycerol and an additional solvent other than glycerol, and the content (% by mass) of the additional solvent relative to the content (% by mass) of glycerol in terms of mass ratio is 0.6 times or less.

Abstract: An ink composition contains resin particles, a pigment, glycol ether, and water, wherein the resin particles satisfy the condition defined by Relational Expression (1) 1.0?(?2/?1)?12.5??(1) (where ?1 represents the volume average particle size of the resin particles in a solution containing 20 mass % of the resin particles and 80 mass % of water, and ?2 represents the volume average particle size of the resin particles in a solution containing 90 mass % of the resin particles and 10 mass % of water).

Abstract: Provided is an ink jet recording method capable of recording an image excellent in color developability while suppressing ink deposition. The ink jet recording method includes ejecting an aqueous ink from an ejection orifice of a recording head based on image data to record an image on a recording medium and ejecting the heated ink to an ink receiving member from the ejection orifice based on preliminary ejection data. The aqueous ink contains a pigment and a resin dispersant for dispersing the pigment and satisfies at least one of requirement (1): the resin dispersant is a water-soluble acrylic resin having an acid value of 135 mgKOH/g or less and requirement (2): the aqueous ink further contains a water-soluble acrylic resin having an acid value of 135 mgKOH/g or less. The pigment is carbon black whose cumulative 50% particle size in volume-based particle size distribution is 80 nm or less.

Abstract: To provide an aqueous ink that can suppress the dissolution of silicon or a silicon compound contained in a recording head, can be stably, continuously ejected for a long time, and enables the recording of an image having excellent glossiness. An aqueous ink for ink jet includes a pigment, a resin dispersant for dispersing the pigment, an alkanolamine and a urethane resin. The pigment is a solid solution containing C.I. Pigment Red 122 and C.I. Pigment Violet 19, and the proportion (% by mass) of the C.I. Pigment Red 122 is 10% by mass or more to 90% by mass or less based on the total mass of the solid solution.

Abstract: An aqueous ink used in an ink jet recording method that uses thermal energy to eject an ink from a recording head includes a copper phthalocyanine pigment and a urethane resin. The urethane resin has a unit derived from a polyisocyanate, a unit derived from a polyether polyol having no acid group, a unit derived from a polyol having an acid group and a unit derived from a polyamine; in the urethane resin, the proportion of the urethane bond relative to the total amount of the urethane bond and the urea bond derived from the polyamine is 90.0% by mole or more to 99.0% by mole or less; and the urethane resin has a weight-average molecular weight of 20,000 or less and an acid value of 50 mg KOH/g or more to 110 mg KOH/g or less.

Abstract: An ink set includes two ink compositions containing resin and wax separately, with the resin in one and the wax in the other, or an ink composition containing resin and wax together as well as a coagulant solution containing a coagulant for a component of the ink composition(s). The resin and the wax include a resin and a wax wherein the resin has higher aggregability than the wax.

Abstract: Articles can be prepared having silver layers or patterns using a non-aqueous silver precursor composition consisting essentially of: at least 1 weight % of one or more (a) cellulosic polymers, (b) at least 0.1 weight % of reducible silver ions, and (c) an organic solvent medium consisting of: (i) one or more hydroxylic organic solvents, and, optionally, (ii) a nitrile-containing or carbonate-containing aprotic solvent. This composition is subjected to a temperature of at least 20° C. for a time sufficient to convert at least 90 mol % of the (b) reducible silver ions to (d) silver nanoparticles having a mean particle size of at least 25 nm and up to and including 750 nm. Additional (ii) nitrile-containing or carbonate-containing aprotic solvent can be added, and (e) carbon black can be added sufficient to provide at least 5 weight % carbon black.

Abstract: A non-aqueous silver precursor composition contains at least 1 weight % of one or more (a) polymers that are certain cellulosic polymers; (b) reducible silver ions; and(c) an organic solvent medium consisting of: (i) a hydroxylic organic solvent having an ?-hydrogen atom and a boiling point at atmospheric pressure of 100-500° C., and, optionally, (ii) a nitrile-containing aprotic solvent or a carbonate-containing aprotic solvent different from the (i) organic solvent, each having a boiling point at atmospheric pressure of 100-500° C. The (b) reducible silver ions are present in an amount of 0.1-400 weight %, based on the total weight of the one or more (a) polymers. This composition can be used to form silver nanoparticles under silver ion reducing conditions and then applied to various substrates to provide silver nanoparticle patterns.

Abstract: An article has a substrate and a pattern of a dry silver nanoparticle-containing composition comprising at least 20 weight % of one or more (a) polymers, that are cellulosic polymers; (d) silver nanoparticles having a mean particle size of 25-750 nm and present in an amount of 0.1-400 weight %, based on the total weight of the one or more (a) polymers; and (e) carbon black in an amount of 5-50 weight %, based on the total weight of the one or more (a) polymers. Such patterns can have multiple fine lines of any geometric arrangement. The article can have multiple patterns of this type, and each pattern can be electrolessly plated with a suitable metal such as copper to provide electrically-conductive product articles.

Abstract: Described herein is a coating composition and films therefrom, wherein the coating composition comprises a plurality of ceramic microspheres wherein the plurality of ceramic microspheres has a D50 diameter of 2 to 20 microns and a D50 to D90 ratio greater than 0.50 as measured by light scattering; and at least one film-forming polymer.

Abstract: A coating composition for a food or beverage can that includes an emulsion polymerized latex polymer formed by combining an ethylenically unsaturated monomer component with an aqueous dispersion of a water-dispersible polymer.

Abstract: A resin emulsion for a coating material, which contains emulsion particles each having an inner layer and an outer layer, and wherein: each emulsion particle has a resin layer containing a polymer (I) that is obtained by emulsion polymerizing a monomer component A containing 80 to 100% by mass of a styrene monomer and 0 to 20% by mass of a monomer other than the styrene monomer and a resin layer containing a polymer (II) that is obtained by emulsion polymerizing a monomer component B containing 70 to 100% by mass of a (meth)acrylic acid ester and 0 to 30% by mass of a monomer other than the (meth)acrylic acid ester; and the content of the styrene monomer in all monomer components used as starting materials for the emulsion particles is 10 to 55% by mass.

Abstract: Organic-inorganic composite particles including: inorganic particles; and an organic polymer, wherein the inorganic particles have surfaces on which no modification treatment for introducing a polymerizable reactive group is conducted, the organic polymer comprises a hydrophilic block arranged on the surfaces of the inorganic particles and made of a first polymer, and a hydrophobic block stacked on an outside of the hydrophilic block and made of a second polymer, and the inorganic particles, the first polymer, and the second polymer have surface free energies satisfying a condition expressed by the following formula: ENP>EA>EB [in the formula, ENP represents the surface free energy of the inorganic particles, EA represents the surface free energy of the first polymer, and EB represents the surface free energy of the second polymer].

Abstract: Disclosed is a dry-erasable coating composition comprising (a) a resin component comprising (i) an epoxy silane resin; and (ii) a cycloaliphatic epoxy resin different from the resin of (a)(i) and (b) an amino-functional crosslinking agent. A substrate at least partially coated with the dry-erasable coating composition and a method of making a dry-erasable surface are also described herein.

Abstract: The present invention provides a solvent-free varnish composition, including: a thermosetting resin (A) having two or more (meth)acryloyl groups in a molecule thereof; a thermosetting resin (B) having one or more epoxy groups in a molecule thereof; a monofunctional vinyl-based monomer having an ether bond or an ester bond; an organic peroxide having a 10-hour half-life temperature of 40° C. or more; and a curing catalyst for an epoxy resin, in which a mixed resin of the thermosetting resin (A) and the thermosetting resin (B) has an epoxy equivalent of from 500 to 5,000. The solvent-free varnish composition can be used as an insulating varnish that shows a small energy loss and requires a short curing time in its curing treatment step, and that provides a cured product that barely causes the precipitation of an oligomer or the like even when exposed to a refrigerant-based environment containing a refrigerant and a refrigerating machine oil under high temperature and high pressure.

Abstract: The present application relates to curable coating compositions which include greater than 10 mole % of succinic acid. The inclusion of succinic acid provides a quick cure rate, useful hardness, desirable gloss properties and low yellowing. Described are also processes for the preparation of the curable coating compositions, their curing methods and their use in the coating of surfaces.

Abstract: Two-component coating compositions comprising a water-dispersible polyisocyanate component, comprising c) at least one polyisocyanate and d) at least one reaction product of at least one polyisocyanate b1) with compounds b2) having at least one hydrophilic, non-isocyanate-reactive group (group A) and at least one isocyanate-reactive group (group B) and a polyacrylate component comprising an aqueous polymer dispersion c) of at least one hydroxy-functional poly(meth)acrylate with bimodal or polymodal particle size distribution.

Abstract: There is provided herein an opaque one-part room temperature vulcanizing silicone polymer composition comprising: (a) a silanol-terminated diorganopolysiloxane, (b) an opaque reinforcing filler; (c) a polyalkoxysilane crosslinking agent; (d) a condensation cure catalyst; (e) an organo-functional alkoxy silane adhesion promoter; and, (f) a cyclic siloxane. There is also provided a method for the continuous production of such a silicone polymer composition, and a paint containing such a silicone polymer composition.

Abstract: This application is directed to methods for applying a petroleum-based thermoplastic resin (PTR) film to a substrate. A PTR emulsion or dispersion is applied to a substrate to form a PTR coating. The PTR coating is then photonically heated on the substrate. Photonically heating the PTR coating on the substrate comprises removing solvent and melting the PTR to form a continuous film.

Abstract: The present invention provides a coating composition which cures at low temperatures to form a cured film having high solvent resistance.

Abstract: A polishing liquid comprising a liquid medium, an abrasive grain and a polymer, wherein the polymer includes a first molecular chain having a functional group directly bonded thereto, and a second molecular chain branched from the first molecular chain, and the functional group is at least one selected from the group consisting of a carboxyl group, a carboxylic acid salt group, a hydroxyl group, a sulfo group and a sulfonic acid salt group.

Abstract: The purpose of the present invention is to provide a polishing composition which can polish an object to be polished containing oxygen atoms and silicon atoms at high polishing speed, and can reduce generation of scratches on a surface of the object to be polished. A polishing composition used for polishing an object to be polished containing oxygen atoms and silicon atoms, the polishing composition including: abrasive grains A having an average primary particle size of 3 nm or more and 8 nm or less; abrasive grains B having an average primary particle size of more than 8 nm; and a dispersing medium, wherein a content of the abrasive grains B in the polishing composition is larger than a content of the abrasive grains A in the polishing composition, average silanol group density of the abrasive grains A and the abrasive grains B is 2.0 nm?2 or less, and an aspect ratio of the abrasive grains B is more than 1.3 and 2.0 or less.

Abstract: A protective textile sleeve for providing protection to an elongate member contained therein and method of construction thereof is provided. The sleeve has a wrappable wall including a heat-activatable adhesive disposed thereon. A UV cured layer is disposed over the heat-activatable adhesive to sandwich the heat-activatable adhesive between the wall and the UV cured layer. The UV cured layer prevents the underlying heat-activatable adhesive from adhering to another surface until a suitable heat source activates the heat-activatable adhesive.

Abstract: Disclosed herein is a pressure-sensitively adhesive protective film formed from a polymer film coated with a crosslinked pressure-sensitive adhesive composition. The pressure-sensitive adhesive composition contains a pressure-sensitive adhesive polymer which is formed by emulsion polymerization in the presence of saccharified starch from soft monomers which when polymerized as a homopolymer have a glass transition temperature of less than 0° C., from ethylenically unsaturated acids or acid anhydrides, and optionally further monomers different from (i) and (ii). The pressure-sensitive adhesive composition contains defined crosslinkers, with the crosslinking reaction brought about by the crosslinker being at an end before the pressure-sensitively adhesive protective film is adhered to a substrate.

Abstract: Provided is a film for plastic restoration with which transparency of plastic having reduced transparency can be easily recovered. The film for plastic restoration has base material film formed of thermoplastic polyurethane; and adhesive layer formed on a first surface side of base material film. Adhesive layer is composed of at least one resin selected from an acrylic resin, a urethane-based resin, a rubber-based resin and a silicone-based resin. A refractive index of adhesive layer is 1.40 to 1.70. Surface roughness of adhesive layer is 350 to 750 nanometers.

Abstract: This thermosetting adhesive composition contains as a component (A) a vinyl compound in which a terminal end of a bifunctional polyphenylene ether oligomer is converted to a vinyl group, as a component (B) a maleimide resin, and as a component (C) a thermoplastic elastomer, the equivalent ratio of vinyl groups in the component (A) and maleimide groups in the component (B) being 1.0:0.5 to 1.0:4.0, the proportion of the component (C) in the total weight of the component (A), the component (B), and the component (C) being 55 to 95% by weight, the ratio of styrene units of the component (C) with respect to the total weight of the component (C) being 10 to 40% by weight, the tensile stress at 100% elongation being 0.1 to 2.9 MPa, and the elongation at break being 100% or greater.

Abstract: A repairing or reinforcement method includes applying, to concrete, a pressure-sensitive or bonding adhesive sheet containing a first pressure-sensitive or bonding adhesive layer; and curing the first adhesive layer such that a first surface of the first adhesive layer is bonded to the concrete. The first adhesive layer contains an acrylic resin having a glass transition temperature of 15° C. or below, a liquid epoxy resin, a solid epoxy resin, and a curing agent.

Abstract: The present invention aims to provide a polyvinyl acetal resin composition that is moldable by an extrusion method and capable of exhibiting excellent heat resistance after molding, an adhesive sheet containing the polyvinyl acetal resin composition, and a method for producing the adhesive sheet. The present invention relates to a polyvinyl acetal resin composition including: a polyvinyl acetal; a reactive diluent; and a photopolymerization initiator, the polyvinyl acetal resin composition having a storage modulus G? at 200° C. before irradiation with light of 8×104 Pa or lower and a storage modulus G? at 200° C. after irradiation with light of 8×103 Pa or higher, with the storage modulus G? at 200° C. after irradiation with light being higher than the storage modulus G? at 200° C. before irradiation with light.

Abstract: Provided are a composition for an adhesive, which has an adhesive characteristic that hardly changes along with a temperature change, and an adhesive film excellent in productivity, molding processability, and adhesive property. Also provided is a composition for an electrical storage device, which can form a layer excellent in adhesiveness with a current collector or a separator, and enables the production of an electrical storage device excellent in charge-discharge characteristic. The composition according to the present invention includes: heterophasic polymer particles (A); and a liquid medium (B), in which the heterophasic polymer particles (A) each have: a repeating unit derived from a conjugated diene; a repeating unit derived from an unsaturated carboxylic acid ester; and a repeating unit derived from an unsaturated carboxylic acid.

Abstract: A main object of the present disclosure is to provide a block copolymer composition that allows a hot melt adhesive composition having excellent hot melt properties and heat resistance stability to be obtained. The object is achieved by providing a block copolymer composition comprising a block copolymer A including an Ar1-D1 diblock as a branched chain, the block copolymer A represented by the following general formula (I), characterized in that: a molecular weight distribution (Mw/Mn) of the block copolymer A is 1.20 or less; a content of the block copolymer A in the block copolymer composition is 10% by mass or more; a content of a block copolymer B corresponding to an Ar2-D2 diblock represented by the following general formula (II), in the block copolymer composition is 60% by mass or less, and a molecular weight distribution (Mw/Mn) of the block copolymer B is 1.

Abstract: One-component toughened epoxy structural adhesives contain fibrous mineral fillers that have an aspect ratio of ?6. The presence of the fibrous filler leads to a significant increase in elastic modulus while having little if any adverse effect on other properties such as dynamic impact peel resistance.

Abstract: The invention includes a reactive hot melt adhesive composition including an isocyanate functional prepolymer derived from a polyfunctional isocyanate having a functionality of about 2 or more and a polyol, an active hydrogen organofunctional silane, an active hydrogen non-silane capping agent and a thermoplastic polymer.

Abstract: Provided is an adhesive composition for optical use, the adhesive composition including: a monofunctional urethane (meth)acrylate-based oligomer; and a polyfunctional urethane (meth)acrylate-based oligomer, in which a weight ratio of the monofunctional urethane (meth)acrylate-based oligomer and the polyfunctional urethane (meth)acrylate-based oligomer is 1:2 to 1:4.

Abstract: An optical laminate includes two substrates each of which has a tensile modulus in a range from 2,000 MPa to 7,500 MPa, and an adhesive layer interposed between the substrates. A storage modulus at 25° C. of the adhesive layer is 100 kPa or less, and a storage modulus at ?20° C. of the adhesive layer is equal to or less than three times the storage modulus at 25° C. of the adhesive layer. The optical laminate and an image display device including the optical laminate may have an improved flexible property at various temperature ranges and may be capable of minimizing cracks when being bent.

Abstract: A composition for use as a swellable seal includes a base polymer, a super absorbent polymer, and a predetermined amount of cotton flock.

Abstract: Provided are compositions, preferably azeotrope or azeotrope-like compositions including 1,1,1,4,4,4-hexafluoro-2-butene and chlorotrifluoropropene, particularly 1-chloro-3,3,3-trifluoropropene (HCFO-1233zd), and uses thereof of the compositions. The composition may be a heat transfer composition. The composition may be a blowing agent composition. The composition may be a solvent composition. The composition may be a sprayable composition.

Abstract: Methods and compositions regarding borate, cross-linking suspensions are disclosed that may include one or more non-clay suspending agents, at least 30 wt. % of one or more boron-containing minerals, and a water-based solvent. In additional embodiments, the suspensions may include one or more polyols, one or more additives, or both, wherein the additives, for example, may include stabilizing agents, dispersing agents, surfactants, wetting agents, anti-gelling agents, pour-point depressants, or combinations thereof. Turning to a different aspect of this disclosure are methods that may include mixing one or more non-clay suspending agents in a water-based solvent and adding, subsequent to this mixing, at least 30 wt. % of one or more boron-containing minerals. In other embodiments, example methods may also include adding one or more additives prior to adding at least 30 wt. % of one or more boron-containing minerals.

Abstract: Capsules with a cement additive covered by a polymeric outer shell are added to wellbore cement. The additive is released from the shells by osmosis or shell ruptures. Capillary forces draw the additive into micro-annuli or cracks present in the cement, where the additive seals the micro-annuli and cracks to define a self-sealing material. The empty shells remain in the cement and act as an additive that modifies cement elasticity. The capsules are formed by combining immiscible liquids, where one of the liquids contains a signaling substance, and each of the liquids contains a reagent. When combined, the liquids segregate into a dispersed phase and a continuous phase, with the dispersed phase having the signaling agent. The reagents react at interfaces between dispersed and continuous phases and form polymer layers encapsulating the signaling agent to form the capsules. Adjusting relative concentrations of the reagents varies membrane strength and permeability.

Abstract: A method of monitoring conditions in a wellbore by disposing capsules with a signaling agent downhole, and monitoring the presence of the signaling agent released from the capsules that escape the wellbore. The capsules are formed by combining immiscible liquids, where one of the liquids contains the signaling substance, and each of the liquids contains a reagent. When combined, the liquids segregate into a dispersed phase and a continuous phase, with the dispersed phase having the signaling agent. The reagents react at the interfaces between dispersed and continuous phases and form polymer layers encapsulating the signaling agent to form the capsules. When disposed downhole, such as in casing cement, the capsule membranes can burst under pressure or temperature to release the signaling agent. Adjusting relative concentrations of the reagents varies membrane strength and permeability.

Abstract: Methods and compositions for treating a subterranean formation with salt-tolerant cement slurries including treating a salt-containing subterranean formation having sodium salts, potassium salts, magnesium salts, calcium salts, or any combination thereof comprising: providing a salt-tolerant cement slurry comprising: a base fluid, a cementitious material, a pozzolanic material, a salt-tolerant fluid loss additive, a salt additive, and optionally, an elastomer, a weight additive, a fluid loss intensifier, a strengthening agent, a dispersant, or any combination thereof, introducing the salt-tolerant cement slurry into the subterranean formation; and allowing the salt-tolerant cement slurry to set.

Abstract: Oil recovery processes from carbonate or sandstone reservoirs. With a carbonate reservoir, the reservoir is initially flooded with a fluid such as sea water. Then the same fluid containing a plurality of citric acid-filled microcapsules is injected into the reservoir. These microcapsules are left to incubate in the reservoir, which will then infiltrate the rock formations, degrade by heat and release the encapsulated citric acid. The released citric acid reacts with the carbonate rocks to produce CO2 in situ, which causes oil trapped in the rock formations to swell, reduce in viscosity and move towards to a nearby production well. For a sandstone reservoir, calcium carbonate can be also encapsulated with the citric acid for CO2 generation at the reservoir.

Abstract: The present disclosure relates to delivery and release systems, such as core-shell particles. An exemplary composition according to the disclosure can include a carrier element forming an outer shell that defines an inner core. The core can include a reactive agent that is adapted to react with the shell, particularly at an inner interface of the shell with the core materials. The reaction can provide an inside-out degradation of the shell and release of one or more materials therein. The reactive agent may be separated from the shell, such as using a phase change material (PCM). Upon reaching specific environmental conditions, the PCM can change so as the release the reactive agent for reaction with the shell. The systems can be used in various methods to deliver a material to various environments, including underground reservoirs.

Abstract: This invention generally relates to the field of oil recovery from reservoirs. More specifically, it relates to the recovery of oil from sandstone and carbonate reservoirs using a process for preparing a dispersion of capsules for use downhole including the steps of providing capsules containing a dense liquid, each capsule having a capsule wall defining an inner area, the capsule wall having an outer side. The capsules are functionalized by adding a carbon dioxide-philic compound to the outer side of the capsule wall. A dispersion is then prepared by adding the functionalized capsules to supercritical carbon dioxide such that a stable dispersion of capsules in supercritical carbon dioxide is achieved.

Abstract: Various embodiments disclosed relate to compositions including acidic chelator or salt or ester thereof for treatment of subterranean formations including one or more fractures. In various embodiments, the present invention provides a method of treating a subterranean formation. The method includes placing in the subterranean formation a composition including an acidic chelator or a salt or ester thereof. The subterranean formation includes one or more fractures.