Abstract: Provided is a method of creating an image on an array of optoelectronic elements comprising (a) providing a device comprising an array of optoelectronic elements and circuitry connected to each optoelectronic element, wherein the optoelectronic element comprises plural quantum dots or plural nanorods, and wherein the circuitry is configured to be capable of switching each optoelectronic element independently between an effective forward bias configuration and a reverse-bias configuration, (b) imposing an effective reverse bias on two or more of the optoelectronic elements, (c) providing circuitry that will detect the onset of photocurrent from an individual effective reverse biased optoelectronic element and that will respond to the photocurrent by changing the bias on the individual optoelectronic element to an effective forward bias.

Abstract: A method for encapsulating a catalyst in a dispersed polymer particle comprising dissolving a Group 8 to Group 11 transition metal containing catalyst and a self-dispersing polymer in a solvent; adding water and optionally a base under particle forming conditions to form a dispersed polymer encapsulated catalyst comprising particles having a population number average diameter between 10 and 300 nanometers is provided.

Abstract: A process of stripping a dispersion of organic extender particles with volatile organic compounds and a method of reducing volatile organic compounds.

Abstract: Provided are polymer compositions polymer composition comprising (i) one or more multistage polymers comprising (a) a first stage polymer having a Tg of ?20° C. or lower, and (b) a final stage polymer having a Tg of 50° C. or higher, (ii) one or more phosphate surfactant in an amount of 50 ppm or more, based on the dry weight of the multistage polymer, and (iii) one or more alkaline phosphate in an amount of 100 ppm or more, measured as the weight of phosphorous, based on the dry weight of the multistage polymer. Also provided are matrix resin compositions comprising such polymer compositions and a matrix resin.

Abstract: Provided are multi-stage polymer compositions comprising (a) cross-linked core comprising polymerized units derived from (i) alkyl(meth)acrylate monomers, and (ii) one or more cross-linking monomers, graft-linking monomers, and combinations thereof, (b) a first intermediate layer comprising polymerized units derived from (i) one or more alkyl(meth)acrylate monomers, and (ii) cross-linking monomers, graft-linking monomers, and combinations thereof, (c) a second intermediate layer comprising polymerized units derived from (i) one or more alkyl(meth)acrylate monomers, styrenic monomers, and combinations thereof, and (ii) one or more chain transfer agents, and (d) a shell comprising polymerized units derived from (i) alkyl(meth)acrylate monomers, styrenic monomers, and combinations thereof, (ii) one or more monomers selected from the group consisting of acid functionalized monomers, hydroxyl-functionalized monomers, and combinations thereof, and (iii) optionally, of one or more chain transfer agents.

Abstract: The present invention relates to a method of preparing an aqueous dispersion of multistage polymer particles comprising contacting under emulsion polymerization conditions and in a staged fashion an aqueous dispersion of carboxylic acid functionalized core polymer particles with first monomers and second monomers. The core comprises structural units of a high Tg hydrophobic monomer and/or the first monomers comprise a high Tg hydrophobic monomer, and the second monomers comprise at least 80 percent styrene. The high Tg hydrophobic monomer is cyclohexyl methacrylate, isobornyl methacrylate, 4-t-butyl methacrylate, t-butylstyrene, or n-butyl methacrylate, or a combination thereof. The multistage polymer particles are useful as opaque polymers, which are used in pigmented coating formulations to reduce the load of TiO2. The particles exhibit excellent collapse resistance and unusually low dry bulk density, and do not require acrylonitrile to achieve this desired combination of properties.

Abstract: The present invention relates to a matte coating composition comprising an aqueous dispersion of a) polymer particles having an average particle size in the range of from 80 nm to 500 nm; b) polymeric organic crosslinked microspheres having a particle size in the range of from 1 ?m to 20 ?m; c) polyethylene wax particles having a particle size in the range of from 0.3 ?m to 30 ?m; and d) a rheology modifier. The composition of the present invention gives matte finish coatings with excellent burnish resistance.

Abstract: Provided are processes for making a polymer composition comprising (i) providing a multistage polymer latex by emulsion polymerization in the presence of a phosphate surfactant, wherein the multistage polymer comprises (a) a first stage polymer having a Tg of ?20° C. or lower, and (b) a final stage polymer having a Tg of 50° C. or higher, (ii) coagulating the multistage polymer latex, (iii) treating the coagulated multistage polymer with an alkaline phosphate, (iv) drying the coagulated multistage polymer to a water content of less than 1 weight % based on the dry weight of the multistage polymer, wherein the weight of the dried multistage polymer comprises 100 ppm or more, based on the dry weight of the multistage polymer, of phosphorous that is in the form of an alkaline phosphate. Also provided are processes for making matrix resin compositions comprising such polymer compositions and a matrix resin.

Abstract: The present invention provides efficient methods to form a high solids content polymeric polyacid or a comb polymer useful as a superplasticizer or dispersant which comprise heating to from 80 to 100 C. for a first time period, and then, sequentially, heating to a second temperature of from 150 to 250° C. for a second time period a wet reaction mixture having a solids content of from 80 to 99 wt. % and comprising from 15 to 60 wt. % of one or more ethylenically unsaturated acid or a salt thereof, from 37 to 76.99 wt. % of one or more polyether polyols, alkyl polyether polyols, polyether amines or alkyl polyether amines in the presence of (i) from 0.01 to 1 wt. %, of one or more water soluble radical initiators or redox pairs and (ii) from 2 to 22 wt. % of one or more phosphorus oxide containing compounds, all weights based on the total weight of the wet reaction mixture.

Abstract: A method for producing a crosslinked gel. The method comprises steps of: (a) combining (i) water, (ii) alginic acid, alginates, or mixtures thereof, (iii) carboxymethylcellulose, (iv) a salt of calcium, magnesium or zinc, (v) a nonionic surfactant and (vi) fragrance to form a gel having a surface; and (b) contacting with the surface of said gel an additional aqueous solution of a salt of calcium, magnesium or zinc.

Abstract: A method for neutralizing a coating composition comprising adding a neutralizing agent to a coating composition; wherein the neutralizing agent comprises aminoethylethanolamine (AEEA) and at least one additional amine.

Abstract: Two-component solventless polyurethane adhesive compositions are disclosed comprising an isocyanate component comprising an isocyanate, and a polyol component comprising an amine-initiated polyol comprising two or more primary hydroxyl groups and a backbone incorporating tertiary amines, wherein the amine-initiated polyol comprises a functionality of from 2 to 12, a hydroxyl number of from 5 to 1,830, and a viscosity at 40° C. of from 500 to 20,000 mPa-s, and a silicone-based additive (e.g., an anti-foaming agent and/or a wetting agent). The adhesive compositions are formulated such that the isocyanate and polyol components can be applied to separate substrates prior to mixing. Laminate structures comprising the disclosed adhesive compositions and further comprising a metal or metallized substrate are also disclosed.

Abstract: Two-component solventless polyurethane adhesive compositions are disclosed comprising an isocyanate component comprising an isocyanate blend, and a polyol component comprising an amine-initiated polyol comprising two or more primary hydroxyl groups and a backbone incorporating tertiary amines, wherein the amine-initiated polyol comprises a functionality of from 2 to 12, hydroxyl number of from 5 to 1,830, and a viscosity at 40° C. of from 500 to 20,000 mPa-s, and a silicone-based additive (e.g., an anti-foaming agent and/or a wetting agent). The adhesive compositions are formulated such that the isocyanate and polyol components can be applied to separate substrates prior to mixing. Laminate structures comprising the disclosed adhesive compositions and further comprising a polymeric barrier substrate are also disclosed.

Abstract: The present invention provides stable, quick drying aqueous compositions useful in making traffic markings having excellent low temperature flexibility which comprise (i) one or more vinyl or acrylic emulsion polymers chosen from single stage and multi-stage emulsion polymers, the polymer or at least one stage thereof having both a calculated glass transition temperature (calculated Tg) of from ?25 to 0° C., and a calculated Hansch parameter of 1.4 to 2.25, and (iii) one or more fillers, extenders and/or pigments, wherein the composition has a percent pigment volume concentration (% PVC) of from 50 to 80% and, preferably, a volume solids of from 50 to 75%. The compositions may comprise one or more silanes, and one or more polyamines and a volatile base, such as ammonia.

Abstract: The present invention provides a curable aqueous composition comprising a (co)polymer and an epoxy crosslinker. The (co)polymer comprises, as (co)polymerized units, from 0.05% to 10% by dry weight, based on total monomers of the (co)polymer, ethylenically unsaturated acidic monomers having at least two carboxylic acid groups, and the epoxy crosslinker is an aliphatic compound having at least two reactive oxirane groups. It further provides a method for forming a treated substrate and a substrate formed by the method.

Abstract: A method for solution polymerization. The method comprises polymerizing in a solvent a monomer mixture comprising: (a) 5 to 95 wt % of a C3-C5 ethylenically unsaturated dicarboxylic acid; and (b) 5 to 95 wt % of vinyl acetate; wherein the solvent comprises 51 to 88 wt % isopropanol and 12 to 49 wt % water.

Abstract: Provided are personal care compositions including (a) hydrophobic ester oil, (b) at least one of a nonionic or anionic surfactant, and (c) one or more polymers containing polymerized structural units of (i) 79 to 95.74 weight % of C4-C8 (meth)acrylate monomers, (ii) 0.5 to 5 weight % of (meth)acrylic acid monomer, (iii) 3.75 to 14 weight % of (methoxy) poly(ethylene glycol) methacrylates, and (iv) 0.01 to 2 weight % of at least one crosslinker.

Abstract: An aqueous composition comprising: (1) an alkyl cellulose ether, and (2) an acrylic polymer comprising polymerized units of (i) 35 to 65 wt % C1-C4 alkyl acrylates; (ii) 30 to 60 wt % C3-C6 carboxylic acid monomers; and (iii) 2 to 10 wt % of monomers having an alkyl group having at least ten carbon atoms.

Abstract: A method for preparing methyl methacrylate from methacrolein and methanol. The method comprises contacting a mixture comprising methacrolein, methanol and oxygen with a heterogeneous catalyst comprising a support and a noble metal, wherein oxygen concentration at a reactor outlet is from 1 to 7.5 mol % and wherein pH at a reactor outlet is no greater than 7.5.

Abstract: The present invention relates to composition comprising an aqueous dispersion of microspheres and a class of a nonionic polyalkylene oxide of a distyryl or tristyryl phenol or an anionic polyalkylene oxide salt of a distyryl or tristyryl phenol and a process for preparing the composition. The microspheres have an average particle size in the range of from 1 ?m to 25 ?m, as well as a low coefficient of variation and low gel concentration; the composition is useful in coatings applications, especially where a matte finish is desired.