Abstract: The present disclosure relates to precipitated silicas characterized by a primary particle size mean of greater than 80 nm, a BET surface area of 10-40 m2/g, a total mercury intruded volume of 0.75-2.00 cc/g and an oil absorption of 60-120 cc/100 g. The inventive silica is produced by a process comprises (a) continuously feeding an acid and an alkali metal silicate or alkaline earth metal into a liquid medium at a silicate addition rate V1 and a temperature 70-96° C. with stirring to form the silica particles, (b) stopping the feed of alkali metal silicate or alkaline earth metal silicate and acid and then increasing the temperature to 90 to 100° C. with stirring, (c) adding an alkali metal silicate or alkaline earth metal silicate and an acid with stirring, wherein the silicate addition rate is 1 to 40% of the silicate addition rate V1 and the pH value of 9.0 to 10.

Abstract: Spherical amorphous, non-porous silicas are useful for oral compositions. A method of making the spherical amorphous, non-porous silicas is also provided.

Abstract: Dried and stable biological compositions may have high colony-forming units. Such compositions may include (1) a substrate and (2) micro-organism(s) loaded onto the surface of the substrate, wherein the composition has a total moisture content of about 0.01 wt. % to about 15 wt. %, preferably, about 0.01 wt. % to about 8 wt. %, preferably, about 3 wt. % to about 8 wt. %, preferably, about 5 wt. % to about 8 wt. %, still preferably, selected from 3 wt. %, 5 wt. % and 7 wt. %.

Abstract: Amorphous aluminosilicates are disclosed, and these amorphous aluminosilicates are characterized by a unique combination of high surface area, low oil absorption, and a significant fraction of the total pore volume resulting from micropores. These amorphous aluminosilicates can be used in various paint and coating applications, with the resultant dried or solid film capable of removing VOC's from the surrounding air.

Abstract: Amorphous aluminosilicates are disclosed, and these amorphous aluminosilicates are characterized by a unique combination of high surface area, low oil absorption, and a significant fraction of the total pore volume resulting from micropores. These amorphous aluminosilicates can be used in various paint and coating applications, with the resultant dried or solid film capable of removing VOC's from the surrounding air.

Abstract: A polymeric powder composition prepared from an emulsion blend comprising from 95 to less than 100 percent by weight latex based substrate polymer, wherein the latex based substrate polymer comprises units derived from one or more monomers selected from the group consisting of alkyl (meth)acrylates, functionalized alkyl(meth)acrylates styrene, acrylonitrile, butadiene, chloroprene, vinyl chloride, (meth)acrylates, vinyl acetate, and combinations of two or more thereof and wherein the latex based substrate polymer has a Tg equal to or greater than 60° C. and an average particle size between 100 nm and 10 ?m; and from greater than 0 to 5 percent by weight binder latex polymer, wherein the binder has a Tg of equal to or less than 10° C. and has units derived from one or more (meth)acrylic monomers, and wherein the binder polymer has an average particle size from 50 to 250 nm is provided.

Abstract: A blend comprising from 50 to 95 percent by weight polycarbonate; and from 5 to 50 percent by weight modified methyl methacrylate polymer, wherein the modified methyl methacrylate polymer is selected from the group consisting of modified methyl methacrylate homopolymer, modified methyl methacrylate copolymers, and combinations thereof; wherein the modified methyl methacrylate polymer has one or more end groups provided by reaction with one or more chain transfer agents selected from the group consisting of mercapto esters, cycloalkyl and substituted cycloalkyl thiols, hydroxyl thiols, aryl and substituted aryl thiols, and aminoalkyl thiols, wherein the modified methyl methacrylate polymer has a Mw from 5,000 to 100,000 g/mole; and wherein the blend exhibits a pencil hardness equal to or greater than F measured according to ASTM D3363-05 is provided. A method for preparing a polycarbonate/modified methyl methacrylate blend is also provided.

Abstract: The instant invention provides a thermoplastic composition, method of producing the same, and articles made therefrom. The thermoplastic composition according to present invention comprises the melt blending product of: (A) from 55 to 95 percent by weight of a thermoplastic matrix comprising one or more thermoplastic polymers; and (B) from 5 to 45 percent by weight of a dispersed phase which comprises a crosslinked (meth)acrylate copolymer, wherein the (meth)acrylate copolymer comprises at least 95 percent by weight derived from methyl methacrylate units and from greater than zero to less than 0.5 percent by weight derived from one or more multifunctional cross-linking monomers and/or graft-linking agents; wherein the difference in refractive index between components (A) and (B) is greater than 0.08.

Abstract: A thermoplastic composition comprising from 60 percent to 99 percent by weight of one or more thermoplastic polymers; and from 40 percent to 1 percent by weight of an additive comprising a crosslinked (meth)acrylate polymer, wherein the crosslinked methylmethacrylate polymer comprises at least 99.5 percent by weight derived from methyl methacrylate units, and from greater than zero to less than 0.5 percent by weight derived from one or more multifunctional crosslinking monomers; wherein the crosslinked (meth)acrylate polymer has a volume average particle size of equal to or less than 1.0 micron; and wherein an article produced from the scratch-resistant thermoplastic composition has a hardness of greater than F is provided. Also provided are a method of making the thermoplastic composition, articles made from the polycarbonate composition, and a method of making the articles.

Abstract: A polymeric powder composition prepared from an emulsion blend comprising from 95 to less than 100 percent by weight latex based substrate polymer, wherein the latex based substrate polymer comprises units derived from one or more monomers selected from the group consisting of alkyl (meth)acrylates, functionalized alkyl(meth)acrylates styrene, acrylonitrile, butadiene, chloroprene, vinyl chloride, (meth)acrylates, vinyl acetate, and combinations of two or more thereof and wherein the latex based substrate polymer has a Tg equal to or greater than 60° C. and an average particle size between 100 nm and 10 ?m; and from greater than 0 to 5 percent by weight binder latex polymer, wherein the binder has a Tg of equal to or less than 10° C. and has units derived from one or more (meth)acrylic monomers, and wherein the binder polymer has an average particle size from 50 to 250 nm is provided.

Abstract: A multi-stage polymer composition comprising a crosslinked core component, one or more intermediate layer components and an outermost layer component in which the refractive index of each of the crosslinked core, the one or more intermediate layers and the outermost layer are within 2% of the refractive index of each adjacent component; wherein the crosslinked core component comprises from 75 to 99.9 weight percent of units derived from at least one first monomer selected from the group consisting of alkyl, aryl, and cycloalkyl (meth)acrylate monomer, optionally from 1 to 20 weight percent of units derived from a second monomer selected from the group consisting vinyl monomers; and from 0.1 to 5 weight percent of units derived from cross-linking monomers, graft-linking monomers, or combination thereof, and has a Tg of from ?75 to ?35° C.; wherein each of the one or more intermediate layer components comprises from 71 to 99.

Abstract: A composition comprising: a blended product of: a matrix polymer; and from 0.05 to 2.5 wt % diffuser polymeric particles, wherein the diffuser polymeric particles are characterized by an average diameter from 2.0 to 8 micrometers, a particle size distribution such that at least 90 wt % of the polymer particles fall within ±30% of the volume average particle size, a refractive index, RI, from 1.50 to 1.55; a crosslinking level great than 4%; and wherein the diffuser polymeric particles are produced using at least one alkyl(meth)acrylate monomer copolymerized with from 5 wt % to 25 wt % crosslinking monomer selected from the group consisting of aliphatic crosslinking monomers, aromatic crosslinking monomers, and combinations thereof, and optionally, one or more comonomers selected from the group consisting of aryl(meth)acrylate monomers and monovinyl arenes is provided.

Abstract: A blend comprising from 50 to 95 percent by weight polycarbonate; and from 5 to 50 percent by weight modified methyl methacrylate polymer, wherein the modified methyl methacrylate polymer is selected from the group consisting of modified methyl methacrylate homopolymer, modified methyl methacrylate copolymers, and combinations thereof; wherein the modified methyl methacrylate polymer has one or more end groups provided by reaction with one or more chain transfer agents selected from the group consisting of mercapto esters, cycloalkyl and substituted cycloalkyl thiols, hydroxyl thiols, aryl and substituted aryl thiols, and aminoalkyl thiols, wherein the modified methyl methacrylate polymer has a Mw from 5,000 to 100,000 g/mole; and wherein the blend exhibits a pencil hardness equal to or greater than F measured according to ASTM D3363-05 is provided. A method for preparing a polycarbonate/modified methyl methacrylate blend is also provided.

Abstract: A scratch resistant article comprising a blend which comprises from 50 to 95 percent by weight polycarbonate; and from 5 to 50 percent by weight modified methyl methacrylate polymer, wherein the modified methyl methacrylate polymer is selected from the group consisting of modified methyl methacrylate homopolymer, modified methyl methacrylate copolymers, and combinations thereof; wherein the modified methyl methacrylate polymer has one or more end groups provided by reaction with one or more chain transfer agents selected from the group consisting of mercapto esters, cycloalkyl and substituted cycloalkyl thiols, hydroxyl thiols, aryl and substituted aryl thiols, and aminoalkyl thiols, wherein the modified methyl methacrylate polymer has a Mw from 5,000 to 100,000 g/mole; and wherein the blend exhibits a pencil hardness equal to or greater than F measured according to ASTM D3363-05 is provided. A method for making a scratch resistant article is also provided.

Abstract: This invention relates to the thermal stabilization of halogen-containing polymer compound compositions, more particularly, this invention relates to a poly(vinyl chloride) (PVC) or a chlorinated polyvinyl chloride (cPVC) compound composition comprising either methyl, butyl or octyl tin mercaptide stabilizer, at least one salt of a polymeric polyacid material in the form of a solid on its own, and greater than or equal to 0.52 wt % moisture level in the final halogen-containing polymer compound composition.

Abstract: A multi-stage polymer composition comprising a crosslinked core component, one or more intermediate layer components and an outermost layer component in which the refractive index of each of the crosslinked core, the one or more intermediate layers and the outermost layer are within 2% of the refractive index of each adjacent component; wherein the crosslinked core component comprises from 75 to 99.9 weight percent of units derived from at least one first monomer selected from the group consisting of alkyl, aryl, and cycloalkyl (meth)acrylate monomer, optionally from 1 to 20 weight percent of units derived from a second monomer selected from the group consisting vinyl monomers; and from 0.1 to 5 weight percent of units derived from cross-linking monomers, graft-linking monomers, or combination thereof, and has a Tg of from ?75 to ?35° C.; wherein each of the one or more intermediate layer components comprises from 71 to 99.

Abstract: The instant invention provides a thermoplastic composition, method of producing the same, and articles made therefrom. The thermoplastic composition according to present invention comprises the melt blending product of: (a) from 10 to 75 percent by weight of a continuous phase, based on the total weight of the thermoplastic composition, wherein said continuous phase comprises one or more thermoplastic polymers; and (b) from 25 to 90 percent by weight of a dispersed phase comprising one or more core/shell polymer particles, based on the total weight of the thermoplastic composition, wherein said one or more core/shell polymer particles comprise a crosslinked elastomer core and a thermoplastic shell and wherein said core/shell polymer has an average particle size diameter in the range of from 70 to 10,000 nm.

Abstract: A halogenated polymer containing a functionalized polymer and optionally a blowing agent.

Abstract: This invention relates to the thermal stabilization of halogen-containing polymer compositions, more particularly, this invention relates to a poly(vinyl chloride) (PVC) or a chlorinated polyvinyl chloride (cPVC) composition comprising an alkyl tin stabilizer and at least one salt of a polymeric polyacid such as a polycarboxylic acid salt supported on a polymeric material.

Abstract: A thermoplastic composition comprising from 60 percent to 99 percent by weight of one or more thermoplastic polymers; and from 40 percent to 1 percent by weight of an additive comprising a crosslinked (meth)acrylate polymer, wherein the crosslinked methylmethacrylate polymer comprises at least 99.5 percent by weight derived from methyl methacrylate units, and from greater than zero to less than 0.5 percent by weight derived from one or more multifunctional crosslinking monomers; wherein the crosslinked (meth)acrylate polymer has a volume average particle size of equal to or less than 1.0 micron; and wherein an article produced from the scratch-resistant thermoplastic composition has a hardness of greater than F is provided. Also provided are a method of making the thermoplastic composition, articles made from the polycarbonate composition, and a method of making the articles.