Abstract: The present disclosure relates to a wood article and a process for preparing the wood article. In particular, the present disclosure relates to a wood article comprising a wood substrate comprising acidic substances and having at least one major surface; an adhesion promoting layer directly applied on the major surface of the wood substrate; and a Michael Addition curing coating applied on the adhesion promoting layer, wherein the adhesion promoting layer is formed by a composition comprising a functional silane comprising amino and/or imino functional groups; and wherein the Michael Addition curing coating is formed from a two-component curable coating composition.

Abstract: The present invention provides an aqueous dispersion as a biobased binder and an aqueous coating composition comprising such aqueous dispersion and showing balanced stain resistance, freeze-thaw stability, and anti-clogging properties.

Abstract: A chemically modified precipitated silica characterised by the presence of alkyl moieties chemically bound to the silica and a process for its manufacture.

Abstract: A system and method of additively manufacturing a part including electrically conductive or static dissipating fluorine-containing polymers. The method includes depositing fluorine-containing polymer additive manufacturing material onto a build platform, selectively cross-linking portions of the deposited additive manufacturing material, and curing the selectively cross-linked portions such that the part is at least one of electrically conductive and static dissipating.

Abstract: Provided is a hard coating film in which a hard coating layer having a water contact angle of 90° or less, a high refractive index layer, and a low refractive index layer are laminated on a substrate, the film having suppressed curling, and excellent hardness and antireflection performance.

Abstract: An elastomer has the general structure of: where: subscript a is 50-500, b is 1-10, c is 2-30, R1 has the structure: —CH2(CH2)nO(CH2)pCH(OH)(CH2)qNR2R2? where n, p and q are each independently 1-5 and R2 and R2? are independently selected from alkyl and hydroxyalkyl groups having 1-5 carbon atoms; where X is a crosslinker remnant bound to a siloxane unit corresponding to subscript c of a siloxane backbone polymer in addition to the one shown so that the crosslinker remnant in each occurrence is a reaction product with two siloxane backbone polymers, wherein the crosslinker is selected from a group consisting of primary organic dienes, divinyl siloxane and polyoxyalkylenes wherein at least two X components correspond to crosslinker remnants connecting the same two siloxane backbone polymers.

Abstract: The present invention primarily relates to the use of a mixture capable of biocementation as a means of preventing or reducing plant growth, preferably weed growth. The invention also relates to a method for preventing or reducing plant growth, preferably weed growth, on/in a substrate.

Abstract: The present invention is directed to a pneumatic tire comprising a vulcanizable rubber composition, the vulcanization rubber composition comprising: 1) 100 parts by weight of elastomer consisting of 25 to 35 phr of a styrene-butadiene rubber, 25 to 35 phr of a polybutadiene, and 35 to 45 phr of a natural rubber or synthetic polyisoprene, wherein the styrene-butadiene rubber is a functionalized solution polymerized styrene-butadiene elastomer having a glass transition temperature Tg(A) ranging from ?30 to ?10° C. and having at least one functional group; the natural rubber or synthetic polyisoprene has a Tg(B) ranging from ?60 to ?70° C.; and the polybutadiene is a cis 1,4 polybutadiene having a Tg(C) ranging from ?110 to ?90° C., wherein Tg(A)?Tg(B)?25° C., and Tg(B)?Tg(C)?25° C.; 2) 60 to 80 phr of a prehydrophobated silica; 3) 1 to 10 phr of carbon black; 4) 1 to 3 phr of rubber processing oil; and 5) 5 to 25 phr of at least one hydrocarbon resin having a Tg?20° C.

Abstract: A curable composition includes a blocked isocyanate in which an NCO group of an isocyanate compound having a H6XDI skeleton is blocked by a blocking agent having an O?C—CH—C?O skeleton, a curable functional group-containing fluorine polymer, and an alkoxysilane having a functional group including at least one element of a group 15 element to a group 16 element of the periodic table (excluding oxygen). In the curable composition allowing a titanium oxide to be contained, the molar ratio of the curable functional group to the NCO group is 0.5 to 10; the content ratio of the alkoxysilane with respect to 100 pans by mass of the total amount of the blocked isocyanate and the fluorine polymer is 0.2 to 8 parts by mass; and the content ratio of the titanium oxide with respect to 100 parts by mass of the fluorine polymer is 0 to 200 parts by mass.

Abstract: A plastic laminated film comprising a first layer comprising a polyamideimide copolymer and a second layer provided on at least one surface of the first layer and comprising a polyimide copolymer. The plastic laminated film has both excellent mechanical properties and UV weathering resistance while being colorless and transparent, and can be suitably used as cover films for various flexible or foldable devices.

Abstract: Disclosed herein is an additive for a paint or stain composition or for a colorant composition. The additive is polymerized from at least one acrylate monomer and a chain transfer agent. The additive has a weight molecular weight from about 2,000 Daltons to about 5,000 Daltons, and the chain transfer agent comprises a hydrogen-sulfur functionality and is present from about 8 to about 20 parts per hundred parts of monomers. The additive's glass transition temperature ranges from about ?50° C. to about ?10° C. and the additive is hydrophobic. The additive is added to the colorant composition to minimize tip drying at the colorant canisters, and is added to paint or stain composition as an open time extender.

Abstract: A silica elastomer composite having superior mechanical properties.

Abstract: The present invention provides a process for making a silica masterbatch that contains hydrophobated silica, solution-made rubber and emulsion-made rubber. Hydrophobated silica is mixed into a latex emulsion. Solution-rubber crumb in an aqueous suspension is mixed into the latex emulsion, which is coagulated, and a crumb is recovered, further homogenized, dried and baled to yield the silica masterbatch. A well-dispersed mixture of hydrophobated silica and emulsion-made rubber is added into a steam distillation step of a solution-rubber process from which a silica masterbatch is recovered. The emulsion-made rubber can be omitted to make a silica masterbatch of solution rubber and silica without emulsion rubber. The silica masterbatch has physical properties similar to those found in a comparable dry-mixed composition, but the silica masterbatch can be incorporated more easily and less expensively into tires and other rubber products than the dry-mixed composition.

Abstract: Disclosed herein is the use of manganese, iron, cobalt, or nickel complexes containing tridentate pyridine di-imine ligands as hydrosilylation catalysts. These complexes are effective for efficiently catalyzing hydrosilylation reactions, as well as offering improved selectivity and yield over existing catalyst systems.

Abstract: A rubber composition is based on at least an elastomer, a reinforcing filler, a crosslinking system and a crumb rubber, the said crumb exhibiting a content of isoprene elastomer of greater than 80 phr in the composition of the crumb and the crumb rubber exhibiting a fraction by weight of carbon black ranging from 31% to 35%.

Abstract: The invention relates to a method of testing silanization, which permits inline control of the in situ silanization of light-colored fillers, especially precipitated silicas. This enables continuous in situ silanization in the production of rubber mixtures comprising silanized light-colored fillers, and representative control of the rubber mixture under production conditions. The process is additionally nondestructive and has a high tolerance for carbon black as an additional constituent of the rubber mixture.

Abstract: An additive mixture containing (A) at least one compound of the formula (I) wherein R1 and R2 independently of one another are hydrogen, C1-C22alkyl, —O—, —OH, —CH2CN, C1-C18alkoxy, C2-C18alkoxy substituted by —OH; C5-C12cycloalkoxy, C3-C6alkenyl, C3-C6alkenyloxy, C7-C9phenylalkyl unsubstituted or substituted on the phenyl by 1, 2 or 3 C1-C4alkyl; or C1-C8acyl; and R3 and R4 independently of one another are C1-C22alkyl or a group of the formula (Ia) wherein R0 has one of the meanings of R1 and R2, and (B) at least one anti-scratch additive.

Abstract: A rubber composition comprises: per 100 parts by weight of a diene-based rubber, from 70 to 95 parts by weight of an inorganic filler containing two types of silicas, a silica X and a silica Y, and a carbon black. A compounded amount of the silica X is x parts by weight and a compounded amount of the silica Y is y parts by weight. A total amount of the silica X and the silica Y (x+y) is 85% by weight or greater of the inorganic filler, and a weight ratio of the silica X to the silica Y (x/y) is from 1/3 to 2/1. A nitrogen adsorption specific surface area of the silica X is 160 m2/g±10%, and a nitrogen adsorption specific surface area of the silica Y is 200 m2/g±10%.

Abstract: This disclosure relates to a coating composition for a silicone wiper blade and a rubber wiper blade using the same. More particularly, this disclosure relates to a coating composition for a silicone rubber wiper blade which has excellent wiping durability and water-repellent properties, and a silicone rubber wiper blade which does not require a chlorine surface treatment process using the coating composition for a silicone rubber wiper blade.

Abstract: A shingle includes a substrate, a surface layer of granules, a backdust layer, an adhesive, and a hydrophobic material. Asphalt is applied to the substrate to form a first asphalt coating on the top or upper surface of the substrate and a second asphalt coating on the bottom or lower surface of the substrate. A surface layer of granules is embedded in the first asphalt coating. A backdust layer of particles is embedded in the second asphalt coating. A adhesive is disposed on the backdust layer. The hydrophobic material is applied to the adhesive.

Abstract: A shingle includes a substrate, a surface layer of granules, a backdust layer, an adhesive, and a hydrophobic material. Asphalt is applied to the substrate to form a first asphalt coating on the top or upper surface of the substrate and a second asphalt coating on the bottom or lower surface of the substrate. A surface layer of granules is embedded in the first asphalt coating. A backdust layer of particles is embedded in the second asphalt coating. A adhesive is disposed on the backdust layer. The hydrophobic material is applied to the adhesive.

Abstract: A tire rubber composition is produced by compounding from 1 to 50 parts by mass of silica, carbon black in an amount not less than the amount of silica, and from 10 to 30 parts by mass of a hydrocarbon resin having a softening point from 100 to 140° C. with 100 parts by mass of a diene rubber containing not less than 5 mass % and less than 30 mass % of a styrene-butadiene rubber, wherein the styrene-butadiene rubber has a styrene content from 30 to 40 mass %, a glass transition temperature from ?20 to ?5° C., and a weight average molecular weight from 1000000 to 1800000; a nitrogen adsorption specific surface area of the carbon black is from 200 to 400 m2/g; and a nitrogen adsorption specific surface area of the carbon black is greater than a nitrogen adsorption specific surface area of the silica.

Abstract: Dry erase articles are described comprising a writable surface layer comprising a cured hardcoat composition comprising the reaction product of certain low surface energy compound(s). In one embodiment, the compound(s) comprise a C18-C36 hydrocarbon group and an ethylenically unsaturated group. In another embodiment, a mixture of compounds is utilized, the mixture comprising first compounds comprising a C18-C36 hydrocarbon group and an ethylenically unsaturated group and second compounds comprising a C8-C17 hydrocarbon group and an ethylenically unsaturated group, wherein the first and second compound are present at a weight ratio of 3:2 to 4:1.

Abstract: The object of the present invention is to provide a polydialkylsiloxane backbone containing film excellent in durability against hot water. The film of the present invention comprises a polydialkylsiloxane backbone, wherein the ratio of carbon atoms to silicon atoms (C/Si) is not less than 0.93 and less than 1.38 in terms of moles. In the film, the magnitude of a contact angle change ratio dW represented by a specific formula can be not less than ?10% provided that ?0 is an initial contact angle of water, and ?W is a contact angle of water on the film immersed in ion-exchanged water of 70° C. for 24 hours.

Abstract: The invention relates to a coating for preventing intermetallic bonding, in particular to a water-based high-temperature-resistant titanium-steel anti-bonding coating and its use in the preparation process of titanium ingot. The water-based high-temperature-resistant titanium-steel anti-bonding coating of the invention includes the following components in parts by weight: 50-150 parts of water-based film-forming agent, 0-50 parts of Zn powder, 400-450 parts of Al2O3 powder, and 250-350 parts of talcum powder. The coating of the invention can avoid the bonding reaction with a roller or a winch of the steel equipment in the rolling or perforation process of a titanium tube at 900° C., so as to improve the yield and the production efficiency of titanium material processing. Moreover, the process is simple and easy to operate, the coating is environment-friendly and pollution-free, and easy to prepare.

Abstract: Disclosed are a thermoplastic resin composition including (A) a polycarbonate resin; (B) an impact-reinforcing agent; (C) an anti-drip agent; (D) a phosphorus-based flame retardant; (E) an inorganic filler; and (F) boehmite, wherein the phosphorus-based flame retardant and the boehmite are included in a weight ratio of about 14:1 to about 15:1 and an article formed therefrom.

Abstract: A touch button with better feel in pressing is disposed on a casing, including a touch board having a touch area and a press area, a fixing element disposed on a side of the touch board to form a difference in height from the touch board, an elastic connector for connecting the touch board with the fixing element and forming a state of elastic vertical displacement between the press area and the casing, and plural elastic supporters forming an elastic supporting force to the press area, thereby enabling the press area to manifest the state of elastic vertical displacement on the casing by the elastic supporting force.

Abstract: A composition includes a product of a condensation reaction between a thermal cross-linking agent and a product of hydrolysis and condensation polymerization of a compound represented by Chemical Formula 1.

Abstract: A composition includes a product of a condensation reaction between a thermal cross-linking agent and a product of hydrolysis and condensation polymerization of a compound represented by Chemical Formula 1.

Abstract: The present disclosure relates to anti-corrosion sol-gel material. In particular, the disclosure relates to a cross-linked sol-gel material comprising a first colloidal sol gel made from silanols having an epoxy functionality and a second colloidal sol gel made from silanols having a thiol functionality.

Abstract: To provide a laminate having characteristics of a fluorinated polymer film such as weather resistance and stain resistance, and having an increased solar reflectance by a light reflection layer, wherein the solar reflectance is less likely to decrease over a long period of time, and the light reflection layer is less likely to delaminate; and a production process thereof. A laminate 1 comprising a substrate 10 containing a first fluorinated polymer, a light reflection layer 12 made of a non-curable resin composition containing a second fluorinated polymer and an aluminum pigment, and a protective layer 14 obtained by curing a curable resin composition containing a third fluorinated polymer having a crosslinkable group and a curing agent for curing the third fluorinated polymer, wherein the light reflection layer 12 is disposed between the substrate 10 and the protective layer 14, the light reflection layer 12 has a thickness of from 0.5 to 5 ?m, and the protective layer 14 has a thickness of from 0.3 to 2 ?m.

Abstract: A roofing material including a substrate having a top face and a bottom face. The roofing material further includes a non-asphalt coating applied to the substrate and an asphalt layer covering at least a portion of the top face. The bottom face is asphalt-free, or substantially asphalt-free.

Abstract: The present invention provides a process for making a silica masterbatch that contains hydrophobated silica, solution-made rubber and emulsion-made rubber. Hydrophobated silica is mixed into a latex emulsion. Solution-rubber crumb in an aqueous suspension is mixed into the latex emulsion, which is coagulated, and a crumb is recovered, further homogenized, dried and baled to yield the silica masterbatch. A well-dispersed mixture of hydrophobated silica and emulsion-made rubber is added into a steam distillation step of a solution-rubber process from which a silica masterbatch is recovered. The emulsion-made rubber can be omitted to make a silica masterbatch of solution rubber and silica without emulsion rubber. The silica masterbatch has physical properties similar to those found in a comparable dry-mixed composition, but the silica masterbatch can be incorporated more easily and less expensively into tires and other rubber products than the dry-mixed composition.

Abstract: To provide an optical filter having shielding effects against near ultraviolet rays and near infrared rays. An optical filter comprising a transparent resin body having a single layer or multilayer structure, and containing a near ultraviolet absorbing dye (U) which is a compound represented by the following formula (U) and which has an absorption maximum at a wavelength of from 370 to 425 nm and has a molar absorptivity at the maximum absorption wavelength of at least 50,000 [L/(mol·cm)], and a near infrared absorbing dye (A) which has an absorption maximum at a wavelength of from 600 to 800 nm: In the formula (U), Y is an oxygen atom, a methylene group or a dimethylene group, R1 is a monovalent hydrocarbon group which may have a substituent, or the like, R2 to R5 are a hydrogen atom, an alkyl group, an alkoxy group or the like, and X is a bivalent group represented by any one of the formulae (X1) to (X5) or the like.

Abstract: An aqueous oil-in-water emulsion containing a propylethoxysilane oligomer mixture or a mixture of a propylethoxysilane oligomer mixture and octyltriethoxysilane in a weight ratio of 3:1 to 1:3, at least one emulsifier or an emulsifier system, at least one content of a 2-aminoethanol and water is used as an addition in the production of hydraulically setting cement mixtures such as mortar, screed or concrete for reduction of the shrinkage characteristics.

Abstract: Disclosed is a flame retardant resin composition comprising: a polyolefin resin; a silicone-based compound blended at a ratio of 3 parts by mass or more and 20 parts by mass or less relative to 100 parts by mass of the polyolefin resin; a fatty acid containing compound blended at a ratio of 5 parts by mass or more and 20 parts by mass or less relative to 100 parts by mass of the polyolefin resin; calcium carbonate blended at a ratio of 10 parts by mass or more and less than 100 parts by mass relative to 100 parts by mass of the polyolefin resin; and aluminum hydroxide blended at a ratio of 5 parts by mass or more and 60 parts by mass or less relative to 100 parts by mass of the polyolefin resin.

Abstract: A Hydride Vapor Phase Epitaxy (HVPE) system is provided which comprises a deposition assembly comprising a plurality of deposition chambers and a plurality of separation chambers mounted together, each separation chamber having two opposing ends, each end mounted to a deposition chamber of the plurality of deposition chambers and in fluid communication with the deposition chamber via a fluid pathway, wherein each deposition chamber of the plurality of deposition chambers defines a deposition zone having a height hd, each separation chamber defines a separation zone having a height hs and a length ls, and each fluid pathway has a height hfp, wherein hfp, hs and ls are selected to provide a predetermined interfacial transition region value between different material layers of a multilayer heterostructure; and a moveable belt configured to continuously convey a substrate mounted thereon through the plurality of deposition chambers and the plurality of separation chambers.

Abstract: A dry erase writing surface has a low gloss level of 35-60 that can be utilized as both a writable/erasable dry erase surface and a projection surface, formed by a single component, 100% solids polyurethane, ambient cured, dry erase paint formulation. The paint formulation includes a low NCO isocyanate, a cure accelerating catalyst, a flow, leveling, and defoaming agent, a silica matting agent to reduce the gloss level of the applied coating, and an aliphatic hydrocarbon. The surface is ready for use in 24 hours. The coating has a low VOC of between 49 g/l and 99 g/1. The coating is applied to a prepared surface of a substrate to form a film thickness of 1-3 mils. Marks on the dry erase surface remain virtually invisible after 2500 cycles.

Abstract: An optoelectronic component and a method for manufacturing an optoelectronic component are provided. In an embodiment, the optoelectronic component includes a layer sequence having an active layer configured to emit electromagnetic primary radiation, a converter lamina disposed in a beam path of the electromagnetic primary radiation and a bonding layer disposed between the layer sequence and the converter lamina, wherein the bonding layer comprises an inorganic-organic hybrid material having Si—O—Al bonds and/or Si—O—Zr bonds.

Abstract: Process for producing a rubber composition comprising a rubber component (A) comprising at least one selected from natural rubbers and synthetic diene rubbers, a filler containing an inorganic filler (B), a silane coupling agent (C), and at least two kinds of chemical agents (D) and (E) selected from guanidines, sulfenamides, thiazoles, thiurams, dithiocarbamates, thioureas, and xanthates, wherein the rubber composition is kneaded in a plurality of stages wherein, in the first stage (X) of kneading, the rubber component (A), all or a portion of the inorganic filler (B), all or a portion of the silane coupling agent (C), and at least two kinds of the chemical agents (D) and (E) are added and kneaded.

Abstract: A graft copolymer capable of providing impact resistance, flame retardance, and color rendering properties to a thermoplastic resin is described. The graft copolymer contains a polyorganosiloxane, and is obtained by graft-polymerizing vinyl monomers including a (meth)acrylate ester (b1) having an alkyl group or an aromatic group and an aromatic vinyl monomer (b2) on a polyorganosiloxane-based rubber. The graft copolymer has a volume average particle diameter of 200-2000 nm, and contains 0.1-69 mass % of polyorganosiloxane. A thermoplastic resin composition is also described, containing a thermoplastic resin (A), the graft copolymer, a fluorine resin (C) and a flame retardant (D). A molded article is also described, which is obtained by molding the thermoplastic resin composition.

Abstract: An aqueous adhesive composition including a certain emulsion polymer and an epoxysilane wherein the adhesive composition is substantially free from crosslinking agent is provided. A method for providing a substrate bearing a paper label, the adhered label having ice water resistance, and a method for removing the paper label from the substrate are also provided.

Abstract: Tire having improved wet grip performance and improved resistance to breaking or chipping along with good fuel economy. The tire includes a tire component (preferably, a tire tread) formed of a vulcanized rubber composition. The vulcanized rubber composition is obtained by vulcanizing a specific unvulcanized rubber composition. The unvulcanized rubber composition comprises (a) a rubber component composed of natural rubber, polybutadiene rubber, and two different types of styrene-butadiene rubber, (b) a filler that includes silica, and (c) a silane coupling agent that incorporates a —C(?O)—S— moiety.

Abstract: A thermally conductive resin composition containing (A1) a fluorine-based compound having one to two terminal SiH group(s), in which a content of molecules having two such groups is 60 to 100 mole %, (B1) a fluorine-based compound having one to two terminal alkenyl group(s), in which a content of molecules having two such groups is 60 to 100 mole %, (A2) a fluorine-based compound in which a content of molecules having two terminal SiH groups is 0 to 40 mole %, (B2) a fluorine-based compound in which a content of molecules having two terminal alkenyl groups is 0 to 40 mole %, and (C) a thermally conductive filler, and satisfying, in connection with the content of the fluorine-based compounds, relation of [(A1)+(B1)]/[(A2)+(B2)]=20/80 to 80/20, (A1)/(B1)=20/80 to 80/20, and (A2)/(B2)=20/80 to 80/20, as well as a thermally conductive sheet including the same are provided.

Abstract: An aqueous adhesive composition including a certain emulsion polymer and an epoxysilane wherein the adhesive composition is substantially free from crosslinking agent is provided. A method for providing a substrate bearing a paper label, the adhered label having ice water resistance, and a method for removing the paper label from the substrate are also provided.

Abstract: Methods and compositions useful, for example, for physical solvent carbon capture. A method comprising: contacting at least one first composition comprising carbon dioxide with at least one second composition to at least partially dissolve the carbon dioxide of the first composition in the second composition, wherein the second composition comprises at least one siloxane compound which is covalently modified with at least one non-siloxane group comprising at least one heteroatom. Polydimethylsiloxane (PDMS) materials and ethylene-glycol based materials have high carbon dioxide solubility but suffer from various problems. PDMS is hydrophobic but suffers from low selectivity. Ethylene-glycol based systems have good solubility and selectivity, but suffer from high affinity to water. Solvents were developed which keep the desired combinations of properties, and result in a simplified, overall process for carbon dioxide removal from a mixed gas stream.

Abstract: Described is a thixotropic para-aramid gel that includes a polymer resin, an alkali-soluble anionic thickener, an adhesion promoter, and para-aramid pulp fibers. The polymer resin includes at least one of an acrylate copolymer and a styrene-acrylate copolymer. Also described is a method of producing the para-aramid gel for plaster reinforcement. The method includes mixing the polymer resin, the alkali-soluble anionic thickener, and the adhesion promoter to create a thixotropic gel, and then spinning para-aramid pulp fibers into the thixotropic gel using a high shear mixer. A method of reinforcing a plaster ceiling is also described. The method includes inserting a plurality of fasteners into a visible surface of the ceiling, leaving a portion of each fastener exposed at or above the visible surface, and applying a layer of the para-aramid-reinforced thixotropic gel to the visible surface and encapsulating the portion of each fastener within the layer.

Abstract: Provided are a rubber composition for tire tread containing 100 parts by weight of raw material rubber, 10 parts to 100 parts by weight of a reinforcing filler, and 1 part to 20 parts by weight of a silane compound represented by the following formula (1), the raw material rubber containing 40 parts to 90 parts by weight of a styrene-butadiene rubber and 10 parts to 60 parts by weight of a butadiene rubber; and a tire produced using the rubber composition. The rubber composition for tire tread exhibit improved dispersibility, processability, mechanical characteristics, abrasion resistance performance, and rolling resistance characteristics. wherein X represents a vinyl group; Y represents an alkoxy group; Z represents an alkoxy group; a represents an integer from 0 to 6; b and c each independently represent an integer from 0 to 2 and do not necessarily represent 0 at the same time; and x represents an integer from 1 to 3.

Abstract: Polyurethane nanocomposites are provided which include a polyurethane and surface modified silica nanoparticles covalently bound into the polyurethane. High loadings in excess of 30% may be achieved. In some embodiments, the silica nanoparticles are covalently bound to the polyurethane polymer through a linkage derived from a surface-modifying compound comprising a silane functional group and a polyol segment. In some embodiments the polyurethane nanocomposite may be provided as a tape or film. In addition, precursors for a polyurethane nanocomposites are provided comprising: a first polyol and surface modified silica nanoparticles dispersed within the first polyol. In some embodiments, the silica nanoparticles are surface-modified by reaction with a surface-modifying compound comprising a silane functional group and a polyol segment derived from a second polyol, which may be the same or different from the first polyol.

Abstract: An aqueous coating composition including: a first emulsion polymer including, as copolymerized units, 5% to 50% styrene monomer, by weight based on the weight of the first emulsion polymer, wherein the glass transition temperature (Tg) of the first emulsion polymer is from 55° C. to 110° C.; a certain optional second emulsion polymer; and from 20% to 35%, by weight based on the total weight of the first emulsion polymer and the optional second emulsion polymer, coalescent selected from the group consisting of hexaoxatricosane, C4 alkyl glutarates, C4 alkyl succinates, C4 alkyl adipates, and mixtures thereof is provided. A method for providing a coating using the aqueous coating composition, particularly a coating for cementious substrates, the coating desirably providing superior hot tire pickup resistance is also provided.