Abstract: A process for preparing a polyethylene composition comprising contacting ethylene with a first salan catalyst precursor and an activator to form branched vinyl/vinylidene-terminated high density polyethylene having a number average molecular weight (Mn) of at least 5,000 g/mole; and contacting the branched vinyl/vinylidene-terminated high density polyethylene with ethylene and a second metallocene catalyst precursor and an activator to form a comb-block HDPE. The polyethylene composition comprises a polyethylene backbone, and one or more branched high density polyethylene combs pendant to the backbone, the combs having an Mn of at least 5,000 g/mole, where the polyethylene has a branching index (g?) of less than 0.9.

Abstract: The invention provides a method for producing an oxymethylene copolymer including a polymerization step for cationically polymerizing trioxane and a comonomer at a polymerization temperature of from 135 to 300° C. in the presence of at least one salt of a protonic acid having a molecular weight of 1,000 or less, and at least one polymerization initiator selected from the group consisting of protonic acids having a molecular weight of 1,000 or less, protonic acid anhydrides having a molecular weight of 1,000 or less, and protonic acid ester compounds having a molecular weight of 1,000 or less; wherein the total concentration of metal components contained in the trioxane and comonomer used in the polymerization step is 300 ppb by mass or less.

Abstract: Methods, compounds, and compositions described herein generally relate to polyalkylamines and syntheses thereof. In some embodiments, a chemical compound has the formula: Each instance of R is independently selected from the group consisting of aryl, alkyl, and polyether. Each instance of R? is independently selected from the group consisting of hydrogen, alkyl, aryl, cycloalkyl, polyether, and alcohol. Each instance of Q and Z is independently a covalent bond or selected from the group consisting of alkyl and aralkyl.

Abstract: A highly branched polymer comprising repeating units which each have an acid group such as sulfo group, said repeating units being represented by formula [1] or the like, and a dispersant for carbon nanotubes (CNTs) which comprises the highly branched polymer can disperse CNTs in a medium such as an organic solvent to the individual sizes and can yield thin films having improved conductivity. In formula [1], any one of A1 to A5 is a sulfo group, and the others are each a hydrogen atom.

Abstract: A batch or continuous process for preparing silylated polymers having low color and color stability comprising silylating a prepolymer having reactive functional groups with a silylating agent and optionally quenching the silylated polymer, where a stabilizer package containing at least one phosphite stabilizing agent is used.

Abstract: Polyphenolic condensates and epoxidized products prepared from said condensates are prepared by a reaction utilizing multi catalysts to control the weight average molecular weight (Mw) and the number average molecular weight (Mn). Improved color and ultraviolet absorbance are possessed by the condensates described herein.

Abstract: A method of producing copolyester material with peptide and is disclosed. The method includes: putting ethylene glycol, collagen peptide and Benzenedicarboxylic acid into a container, and mixing them to form a mixture; heating the mixture for executing an esterification reaction, to product esters and water; heating the esters to a first temperature, and stirring the esters via a mixer; in a specific period, decreasing the pressure in the container to a first pressure for executing a polycondensation reaction; decreasing the pressure in the container to a second pressure, and stirring the esters via the mixer, to produce a copolyester material with peptide.

Abstract: The disclosure relates to oxygen scavenging polymer compositions, methods of making the compositions, articles prepared from the compositions, and methods of making the articles. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.

Abstract: The invention relates to a method for producing polyether carbonate polyols, comprising the step of reacting alkylene oxide with carbon dioxide in the presence of an h-functional starter compound and double metal cyanide catalyst. The invention is characterized in that the method comprises the following steps: (?) optionally, pre-treating the double metal cyanide catalyst (DMC catalyst) at a temperature of 50 to 200° C.

Abstract: This disclosure relates to a zinc complex formula (I), as defined herein, to the use of this zinc complex as a catalyst, in particular for the catalysis of a condensation reaction of organosilicon compounds. This disclosure also relates to preparations containing said compounds and to the use thereof.

Abstract: Described herein is a highly effective route towards the controlled and isotropic reduction in size-scale, of complex 3D structures using silicone network polymer chemistry. In particular, a class of silicone structures were developed that once patterned and cured can ‘shrink’ micron scale additive manufactured and lithographically patterned structures by as much as 1 order of magnitude while preserving the dimensions and integrity of these parts. This class of silicone materials is compatible with existing additive manufacture and soft lithographic fabrication processes and will allow access to a hitherto unobtainable dimensionality of fabrication.

Abstract: The present disclosure relates to a matrix-free polymer nanocomposite. The matrix-free polymer nanocomposite includes a plurality of polymer brush grafted nanoparticles, which form the nanocomposite in the absence of a polymeric matrix. The polymer brush grafted to the nanoparticles comprises a multimodal brush configuration having at least two different populations of polymer ligands of different lengths. The present disclosure also relates to an optic or optoelectronic component comprising a matrix-free polymer nanocomposite as described herein. The present disclosure further relates to a method of making a matrix-free polymer nanocomposite.

Abstract: The present invention relates to methods of processing lignocellulosic material to obtain hemicellulose sugars, cellulose sugars, lignin, cellulose and other high-value products such as asphalt and bio oils. Also provided are hemicellulose sugars, cellulose sugars, lignin, cellulose, and other high-value products such as asphalt and bio oils.

Abstract: The invention refers to process for preparing a bio-resorbable polyester in particulate form, comprising the steps: a) providing a bio-resorbable polyester with in the form of a dry polymer mass or in the form of a wet polymer mass; b) feeding the polymer mass from step a) into an extruder extruder with at least one degassing zone where the polymer mass is molten, extruded and degassed; c) discharging the degassed polymer mass out of the extruder; d) comminuting the discharged polymer mass to particles with —a bulk density of 0.3 g/ml or more, —a tapped density of 0.4 g/ml or more and —a specific surface area of 2.0 m2/g or less.

Abstract: Methods are provided for reducing friction during fracturing of a subterranean formation. In some embodiments, a method includes introducing micronized dry water soluble polymer (DWSP) particles into a fracturing liquid to form a mixture; and pumping the mixture into a subterranean formation to fracture the subterranean formation, the micronized DWSP particles include a DWSP, DWSP is selected from the group consisting of dry anionic, dry cationic, dry nonionic water soluble polymer, and mixtures thereof, mean particle size of the micronized DWSP particles ranges from about 115 to about 225 microns.

Abstract: Injection molded article for healthcare applications based on propylene homopolymer having a melt flow rate in the range of 40 to 120 g/10 min, a pentad isotacticity of more than 92.5%, and meso sequence length of 91.0 to 160.

Abstract: A film or sheet composed of a resin composition including a poly lactic acid (A), an acidic functional group-modified olefinic polymer (B) including an acidic functional group and having an acid value of 10 to 70 mg KOH/g and a weight average molecular weight of 10,000 to 80,000, a tetrafluoroethylene polymer (C), and an aromatic cyclic phosphazene-containing flame retardant (D) including a compound of Formula (I) and in (D) is included in an amount of 10 to 70 parts by weight based on 100 parts by weight of (A), and a method for manufacturing the film or sheet by melt film formation.

Abstract: This present invention discloses a polymer/potassium permanganate composite film obtainable by a process comprising the steps of using silane coupling agent for surface treatment of potassium permanganate, mixing 0.15-0.75 g of modified potassium permanganate with 10-20 g of polymers together to obtain a mixture, and coating the mixture to obtain a composite film. The composite film can absorb ethylene generated by fruit, thus extending fruit ripening time, keeping fruit fresh. It can be widely used as food packaging materials. The composite film also has a good oxygen barrier property and has a good efficiency to remove bacteria. Therefore it can be widely used in the pharmaceutical industry. The preparation method is scientifically sound, simple, and has high level of operability, thus making it possible for batch preparation.

Abstract: Disclosed is a film containing a copolyester having a minimum crystallization half-time of at least 8.6 minutes and a polyester plasticizer having a weight-average molecular weight of 900 to 12,000 g/mol. The polyester plasticizer includes (i) a polyol component comprising residues of a polyol having 2 to 8 carbon atoms, and (ii) a diacid component comprising residues of a dicarboxylic acid having 4 to 12 carbon atoms.

Abstract: The present invention provides a film for a solar cell back sheet including: a substrate film; a white layer on at least one surface of the substrate film; and an adhesive protective layer, the white layer being formed by applying an aqueous composition for the white layer including a white pigment, a first aqueous binder and an inorganic oxide filler to at least one surface of the substrate film, and the adhesive protective layer being formed by applying an aqueous composition for the adhesive protective layer including a second aqueous binder, and which has excellent production efficiency, a white pigment uniformly present in the layers, and excellent adhesiveness between the respective layers, and a producing method of the film for a solar cell back sheet.

Abstract: A bilayer object consisting of a carbon fiber reinforced polymer substrate coated with a composition of matter comprising horizontally aligned exfoliated graphene sheets dispersed in an epoxy binder. A method includes depositing graphene into a hardener, mixing the hardener and the graphene to produce a homogenous composite mixture, adding a resin material to the composite mixture to produce an epoxy graphene material, coating a structure with the epoxy graphene material, aligning the graphene sheets in the in-plane orientation, and curing the epoxy graphene material.

Abstract: Polyurethane composites and methods of preparation are described herein. The methods of making the polyurethane composite can include mixing (1) at least one isocyanate selected from the group consisting of diisocyanates, polyisocyanates, and mixtures thereof, (2) at least one polyol, (3) an inorganic filler, and (4) an evaporative coolant in an extruder to form a mixture. The method also include extruding the mixture into a mold cavity, generating heat in the mold cavity from the reaction of the at least one isocyanate and the at least one polyol, and allowing the evaporative coolant to migrate to an interface between the mixture and the interior mold surface. The temperature of the mixture causes evaporation of the evaporative coolant at the interface thereby removing heat at the interface. Suitable evaporative coolants for use in the methods of making the polyurethane composites include hydrofluorocarbons and hydrochlorofluorocarbons.

Abstract: Foamable aqueous compositions can be foamed and applied to porous substrates to make light-blocking dry opacifying elements. Such compositions have 0.05-15 weight % of porous particles; at least 20 weight % of a binder; at least 0.0001 weight % of additives (including a surfactant); water; and at least 0.001 weight % of an opacifying colorant. Each porous particle includes a continuous polymeric phase and discrete pores; a mode particle size of 2-50 ?m; and a porosity of 20-70 volume %. The continuous polymeric phase Tg is >80° C. and has a polymer viscosity of 80-500 centipoises at an ethyl acetate shear rate of 100 sec?1 at a concentration of 20 weight % at 25° C. The dry opacifying element light blocking value is at least 4 and has a luminous reflectance >40% as measured by the Y tristimulus value. The foamed aqueous composition has a foam density of 0.1-0.5 g/cm3.

Abstract: A particulate polyamide is provided. The particulate polyamide is porous and includes at least one of polyamide 4 and polyamide 3. In addition, the particulate polyamide has a particle diameter (d50) of from 10 ?m to 1,000 ?m and a particle diameter dispersion degree (Dv/Dn) of not greater than 3.0, wherein Dv represents the volume average particle diameter of the particulate polyamide, and Dn represents the number average particle diameter of the particulate polyamide.

Abstract: A process for the production of expanded foam beads that are prepared from pellets comprising polyester mixture comprising a) from 50 to 99% by weight, based on components a and b, of a biodegradable polyester based on aliphatic, or a mixture of aliphatic and aromatic, dicarboxylic acids and an aliphatic diol, and b) from 1 to 50% by weight, based on components a and b, of polylactic acid, the process comprising the following steps: (i) providing an aqueous suspension of the polyester pellets, (ii) impregnating the pellets in the suspension of step (i) with at least one physical or chemical blowing agent to provide blowing-agent-loaded pellets in suspension, wherein the impregnation of the at least one blowing agent includes heating the mixture to a depressurization temperature IMT with stirring, and (iii) depressurizing the suspension obtained in step (ii) to provide the expanded foam beads.

Abstract: A polysaccharide based aerogel comprising a network of polysaccharide fibers with pores therebetween, wherein the sizes of the pores are in the micrometer range.

Abstract: Provided is a method for efficiently producing a carbon nanotube (CNT) dispersion liquid of highly dispersed CNTs while also suppressing damage to the CNTs. The method for producing a carbon nanotube dispersion liquid includes a dispersing step that includes at least one cycle of dispersing treatment in which pressure is applied to a coarse dispersion liquid containing carbon nanotubes and a dispersion medium, the coarse dispersion liquid is fed under pressure, and shear force is applied to the coarse dispersion liquid such as to disperse the carbon nanotubes. A plurality of repetitions of the dispersing step are performed while altering the pressure that is applied to the coarse dispersion liquid. In at least one instance, the pressure applied to the coarse dispersion liquid is altered by at least 10 MPa between consecutive repetitions of the dispersing step.

Abstract: The present invention provides a resin composition which can be cured in a short time without a heat load on an adherend and with which a cured product having stable quality can be obtained. The resin composition in accordance with the present invention contains (i) a bisphenol A epoxy resin, (ii) an encapsulated curing agent including a core that contains a curing agent and a shell that covers the core, (iii) a filler, and (iv) a color material.

Abstract: Provided is a transparent thermoplastic composition including 70 to 95% by weight of a copolymer of ethylene and of an ethylenic monomer carrying a polar functional group and 5 to 30% by weight of a peroxide, where the copolymer includes from 20 to 45% by weight of the ethylenic monomer carrying a polar functional group. The composition may be used for crosslinking polymers.

Abstract: An aqueous emulsion of dialkyl peroxide has at least one dialkyl peroxide in liquid form at room temperature, representing between 10% and 75% by weight of the emulsion, at least one emulsifier representing from 0.01% to 10% by weight of the emulsion, optionally, at least one antifreeze, optionally at least one functional additive, water, the amount of which is determined so as to form the rest of said emulsion (100%), characterized in that the emulsifier is a polyethoxylated nonionic surfactant. Also, a process for preparing this aqueous emulsion.

Abstract: The present disclosure is directed to rubber compositions containing a chemical additive capable of generating or enhancing strain-induced crystallization into the compositions, and tires containing the rubber compositions in one or more components such as sidewalls or treads. The chemical additive is at least one nucleating agent of formula (I) or formula (II). As well, certain embodiments relate to methods for achieving reduced wear or improved durability in a tire tread or tire sidewall by using the chemical additives.

Abstract: The invention provides a fluoroelastomer composition excellent in heat resistance. The fluoroelastomer composition of the present invention contains a fluoroelastomer and a specific compound.

Abstract: Crosslinkable polymeric compositions comprising a thermoplastic, non-elastomer ethylene-based polymer, an organic peroxide, and a crosslinking coagent comprising N,N,N?,N?,N?,N?-hexaallyl-1,3,5-triazine-2,4,6-triamine. Such crosslinkable polymeric compositions and their crosslinked forms can be employed as polymeric layers in wire and cable applications, such as insulation in power cables.

Abstract: The invention relates to a polymer composition, which contains or consists of a matrix of at least one thermoplastic polymer capable of crystallization and, incorporated therein, at least one azine dye and at least mono-, di-, tri-, and/or tetravalent metal salt. Said polymer composition is characterized in that the crystallization point thereof is considerably reduced in comparison with polymer compositions having no additives or a composition containing only an azine dye or a metal salt as an additive. The invention further relates to a corresponding additive composition for the crystallization and/or for the lowering of the crystallization point of thermoplastic polymers or polymer compositions capable of crystallization.

Abstract: A flame retardant resin composition containing 1 to 100 parts by weight of (B) an organophosphorus compound (component B) represented by the following formula (1) per 100 parts by weight of (A) a resin component (component A) containing at least 60 wt % of an acrylic resin has high flame retardancy, high transparency and satisfactory physical properties: wherein X1 and X2 are the same or different, and represent alkyl groups substituted with aromatic groups represented by the following formula (2): ALAr)n??(2) wherein AL represents a branched or linear aliphatic hydrocarbon group having 1 to 5 carbon atoms, Ar represents a phenyl group, a naphthyl group, or an anthryl group each optionally substituted, n represents an integer of 1 to 3, and Ar can be bonded to any carbon atom in AL.

Abstract: The invention relates to a liquid composition comprising polymer chains and particles of an inorganic material in a liquid, an article comprising said liquid composition, a gel obtained from said liquid composition, an article comprising said gel, and the use of said liquid composition. The liquid composition comprises polymer chains and particles of an inorganic material in a liquid, wherein the polymer chains are linked to particles of the inorganic material by means of a functional group that is present in the polymer chains, wherein the polymer used has a lower critical solution temperature in the liquid used, and wherein the liquid composition exhibits thermo-induced gelation.

Abstract: According to an exemplary embodiment of the present invention, there is provided a resin composition containing a cellulose ester resin, a compound containing an adipic acid ester, and a maleic anhydride-modified ethylene-vinyl acetate copolymer and a resin composition containing a cellulose ester resin, a compound containing an adipic acid ester, and a polyhydroxyalkanoate resin.

Abstract: The present invention provides moldable compositions that are capable of drying and hardening if left in open air at room temperature for a period of time. Embodiments of the moldable compositions comprise water, at least one polar polymeric resin (e.g., polyvinyl alcohol), at least one thickening agent (e.g., boric acid, borate salt, or hydrate of a borate salt), at least one humectant (e.g., glycerin, propylene glycol, etc.), at least one filler (e.g., corn starch, tapioca, or arrowroot), optionally at least one releasing agent (e.g., mineral oil) and optionally at least one additive.

Abstract: The present invention aims to provide rubber compositions for tires that contain a natural rubber achieving a balanced improvement in abrasion resistance, breaking performance, and processability to achieve a balanced improvement in abrasion resistance, breaking performance, and processability, and also provide pneumatic tires containing such rubber compositions for tires. Included is a rubber composition for tires comprising a modified natural rubber prepared by treating natural rubber latex with a proteolytic enzyme, and then treating the treated natural rubber latex with a lipolytic enzyme and/or a phospholipid degrading enzyme. Also included is a rubber composition for tires, comprising a modified natural rubber prepared by centrifuging natural rubber latex to recover a latex fraction comprising latex particles having an average particle size of 0.25 ?m or less.

Abstract: A rubber composition for vibration damping rubbers, comprising, a rubber component which comprises at least one selected from the group consisting of natural rubbers and polyisoprene rubbers in an amount of 60 to 95 parts by weight, and which comprises a styrene butadiene rubber in an amount of 5 to 30 parts by weight and a complex zinc flower in an amount of 2 to 10 parts by weight for 100 parts by weight of the rubber component. The complex zinc flower has a nitrogen adsorption specific surface area of 15 to 110 m2/g, a DBP oil absorption amount of 50 to 100 mL/100 g, and a zinc flower concentration of 38 to 64% by weight.

Abstract: The present invention provides a rubber composition capable of improving fuel economy and wet grip performance while maintaining good processability, abrasion resistance and handling stability or improving them, as well as a pneumatic tire including the rubber composition. The rubber composition contains carbon black, silica, and a polymer mixture obtained by modifying a polymer derived from a conjugated diene compound and/or an aromatic vinyl compound with a compound containing an ester group and/or a carboxyl group, the polymer mixture having a weight average molecular weight of from 1.0×103 to 1.0×105, the rubber composition having a tan ? peak temperature of ?20° C. or higher, a rubber hardness of from 63 to 75, and a tan ? at 70° C. of from 0.15 to 0.45.

Abstract: The invention provides a composition comprising a first composition, comprising at least one ethylene-based polymer, and wherein the first composition comprises a MWCDI value greater than 0.9, and a melt index ratio I10/I2 that meets the following equation: I10/I2?7.0?1.2×log (I2). The invention also provides a process to form a composition comprising at least two ethylene-based polymers, said process comprising the following: polymerizing ethylene, and optionally at least one comonomer, in solution, in the presence of a catalyst system comprising a metal-ligand complex of Structure I, as described herein, to form a first ethylene-based polymer; and polymerizing ethylene, and optionally at least one comonomer, in the presence of a catalyst system comprising a Ziegler/Natta catalyst, to form a second ethylene-based polymer.

Abstract: The present invention provides a rubber compound used in a hot-water producing portion for a photovoltaic thermal collector that produces hot water on a back-surface side using heat produced through power generation on a front-surface side of a solar panel. There is provided a rubber compound: by using the rubber compound, it is possible to simultaneously form a power generating portion and a hot-water producing portion in a regular photovoltaic module forming line without cracking of a crystalline silicon cell used in the solar panel and without crushing of a channel of a resin pipe used in the hot-water producing portion.

Abstract: The invention relates to a thermoplastic composition containing the components A and B and optionally the additional components C and D, the sum of which equals 100 wt. %. The molding compound consists of: a) 60 to 75 wt. % of one or more styrene copolymers A, b) 25 to 40 wt. % of one or more graft copolymers B, c) 0 to 15 wt. % of a rubber C which is different from component B, and d) 0 to 5 wt. % of one or more additives D. The composition contains 0.2 to 3.0 wt. %, based on the total weight of the components A to D, of oligomers, can be readily processed, and leads to scratch-resistant molded parts.

Abstract: A water-in-oil microemulsion, including a polyacrylamide, a fatty acid, a surfactant, an oil continuous phase, and an aqueous discontinuous phase in the oil continuous phase. The fatty acid includes a tall oil fatty acid, oleic acid, or a combination of a tall oil fatty acid and oleic acid. The water-in-oil microemulsion contains 6 to 48 parts by weight of the polyacrylamide, 30 to 62 parts by weight of the fatty acid, and 20 to 44 parts by weight of the surfactant per 100 parts by weight of the polyacrylamide, the fatty acid, and the surfactant combined.

Abstract: Copolymers of poly(ethylene-co-acrylic acid) and polydiorganosiloxanes, compositions comprising the same, and articles comprising the copolymers, compositions, or both.

Abstract: A block copolymer composition including: 10% by mass or more and 90% by mass or less of a component (a), and 10% by mass or more and 90% by mass or less of a component (b), wherein the component (a) is a block copolymer containing a polymer block (A) primarily including a vinyl aromatic monomer unit and a polymer block (B) primarily including a conjugated diene monomer unit, wherein the block copolymer has a weight average molecular weight of 30,000 or higher and 150,000 or lower; and the component (b) is a block copolymer containing a polymer block (A) primarily including a vinyl aromatic monomer unit and a polymer block (B) primarily including a conjugated diene monomer unit.

Abstract: The present invention encompasses polymer compositions comprising aliphatic polycarbonate chains containing functional groups that increase the polymer's ability to wet or adhere to inorganic materials. In certain embodiments, chain ends of the aliphatic polycarbonates are modified to introduce silicon-containing functional groups, boron-containing functional groups, phosphorous-containing functional groups, sulfonic acid groups or carboxylic acid groups.

Abstract: The present invention relates to compositions and composite components formed from these compositions and a polyurethane layer, which are notable for improved adhesion between the two layers, and a process for producing the composite components.

Abstract: Disclosed is a resin composition for forming a steering wheel remote control bezel. The resin composition comprises: an amount of about 40 to 50 wt % of a polyester copolymer including a dicarboxylic acid component residue including terephthalic acid and a diol component residue including dianhydrohexitol; an amount of about 10 to 20 wt % of at least one copolymer selected from a group consisting of unsaturated nitrile-diene-based rubber-aromatic vinyl grafted copolymers and alkylmethacrylate-diene-based rubber-aromatic vinyl grafted copolymers; and an amount of about 40 to 50 wt % of polycarbonate. Further, an amount of 0.1 to 0.5 parts by weight of a phosphate base antioxidant-based on 100 parts by weight of the resin composition is further added to the resin composition.