Abstract: Aerogel compositions, methods for preparing the aerogel compositions, articles of manufacture that include or are made from the aerogel compositions are described and uses thereof. The aerogels include a branched polyimide matrix with little to no crosslinked polymers.

Abstract: Disclosed is a macroporous polymeric hydrogel microsphere that contains polyacrylamide and chitosan. The hydrogel microsphere, having a diameter of 50-250 ?m and an average pore size of 1-60 nm, is capable of transporting biomolecules conjugated to it. Also disclosed is a method of fabricating the microsphere based on a micromolding technique utilizing surface tension-induced droplet formation followed by photo-induced polymerization.

Abstract: Disclosed is a reduction kit including a reducing compound and an open-cell polymer foam, the surface of which includes a polymer having a catechol unit. Also disclosed is a reducing composition including an open-cell foam, the surface of which includes a polymer having a catechol unit, the foam being functionalized by a reducing compound. The use of the kit or composition as a reagent in reduction reactions is also disclosed.

Abstract: A compact camera module that contains a generally planar base on which is mounted a lens barrel is provided. The base, barrel, or both are molded from a polymer composition that includes a thermotropic liquid crystalline polymer and a plurality of mineral fibers (also known as “whisker”). The mineral fibers have a median width of from about 1 to about 35 micrometers and constitute from about 5 wt. % to about 60 wt. % of the polymer composition.

Abstract: The invention relates to a flame retardant polypropylene composition comprising (A) a polypropylene-based polymer, (B) a first flame retardant in an amount of 15 to 40 wt % of the total composition, wherein the first flame retardant is in the form of particles comprising ammonium polyphosphate and at least one phosphate selected from the group consisting of melamine phosphate, melamine polyphosphate, melamine pyrophosphate, piperazine phosphate, piperazine polyphosphate, piperazine pyrophosphate, 2-methylpiperazine monophosphate, tricresyl phosphate, alkyl phosphates, haloalkyl phosphates, tetraphenyl pyrophosphate, poly(2-hydroxy propylene spirocyclic pentaerythritol bisphosphate) and poly(2,2-dimethylpropylene spirocyclic pentaerythritol bisphosphonate) and (C) a second flame retardant in an amount of 0.1 to 15 wt % of the total composition, wherein the second flame retardant comprises an aromatic phosphate ester.

Abstract: Embodiments of the disclosure relate to a series of PC resin additives for maintaining the color stability and blue-cut performance during injection molding. The additives may be used to adapt a PC resin customarily used for sun protection lenses for clear lens applications.

Abstract: Methods include producing a plurality of carbon particles in a plasma reactor, functionalizing the plurality of carbon particles in-situ in the plasma reactor to promote adhesion to a binder, and combining the plurality of carbon particles with the binder to form a composite material. The plurality of carbon particles comprises 3D graphene, where the 3D graphene comprises a pore matrix and graphene nanoplatelet sub-particles in the form of at least one of: single layer graphene, few layer graphene, or many layer graphene. Methods also include producing a plurality of carbon particles in a plasma reactor; functionalizing, in the plasma reactor, the plurality of carbon particles to promote chemical bonding with a resin; and combining, within the plasma reactor, the functionalized plurality of carbon particles with the resin to form a composite material.

Abstract: Disclosed herein is a hexaferrite composite comprising polytetrafluoroethylene; and greater than or equal to 40 vol %, or 40 to 90 vol % a plurality of Co2Z hexaferrite particles based on the total volume of the polytetrafluoroethylene and the plurality of Co2Z hexaferrite particles on a void-free basis; wherein the hexaferrite composite has a porosity of greater than or equal to 10 vol % based on the total volume of the hexaferrite composite; wherein the hexaferrite composite has a permeability of greater than or equal to 2.5 and a ratio of the permeability to the permittivity of greater than or equal to 0.4, both determined at 500 MHz.

Abstract: New plasticized compositions comprising cellulose acetate The present invention concerns a composition comprising: cellulose acetate, starch acetate, and at least one plasticizer, wherein cellulose acetate is present in an amount of at least 50% by weight with respect to the total weight of cellulose acetate, starch acetate and plasticizer(s), and wherein said at least one plasticizer is present in an amount of at most 18% by weight with respect to the total weight of cellulose acetate, starch acetate and plasticizer(s). The present invention also relates to a process for the manufacture of a plasticized article, to the use of said composition for producing a plasticized article, and to the use of starch acetate to prevent or diminish the exudation of one or more plasticizers from plastic materials containing cellulose acetate and such plasticizer(s), and/or to increase the maximal use temperature in application for a material comprising cellulose acetate.

Abstract: A cellulose ester composition is provided comprising at least one cellulose ester and at least one impact modifier and optionally at least one plasticizer. Processes for producing the cellulose ester compositions as well as articles made using these compositions, such as eyeglass frames, automotive parts, and toys are also provided.

Abstract: The present invention relates to a gel composition containing at least one kind of modified water-soluble hyaluronic acid selected from the group consisting of hyaluronic acid having an anionic modifying group and a salt of the hyaluronic acid and an ion of at least one kind of element selected from the group consisting of elements belonging to from Period 3 to Period 6 and from Group 2 to Group 12 in Periodic Table.

Abstract: A masterbatch manufacturing method is disclosed in which carbon black is added to a liquid and this is agitated to obtain a carbon black slurry; the carbon black slurry and rubber latex are mixed to obtain pre-coagulation rubber latex; and the pre-coagulation rubber latex is coagulated; wherein, at the operation in which the carbon black slurry is obtained, dispersion time from the start of agitation to the end of agitation is not less than 5 times, but not greater than 40 times. A particle diameter reduction relaxation time v may be found by plotting measurement results on a planar graph in such fashion that elapsed time t (minutes) since the start of agitation is plotted on the horizontal axis, and particle diameter f (?m) of carbon black is plotted on the vertical axis, to obtain a best-fit solution.

Abstract: Provided is a rubber composition in which static ozone resistance, dynamic ozone resistance and discoloration resistance are highly balanced. Also provided is a tire in which static ozone resistance, dynamic ozone resistance and discoloration resistance are highly balanced. The rubber composition comprises a rubber component, a petroleum wax, and an antidegradant, wherein the petroleum wax comprises a C20-C34 hydrocarbon component and a C35 or higher hydrocarbon component, and a proportion of the C20-C34 hydrocarbon component is 15% by mass to 30% by mass and a proportion of the C35 or higher hydrocarbon component is 70% by mass to 85% by mass, based on a total mass of the C20-C34 hydrocarbon component and the C35 or higher hydrocarbon component.

Abstract: While suppressing a decrease in low-temperature performance, performance at ambient temperature, such as wet performance and dry performance, is improved. A rubber composition for a tire tread according to an embodiment includes, per 100 parts by mass of a rubber component containing a styrene-butadiene rubber having a glass transition temperature of ?60° C. or less, 70 parts by mass or more of a reinforcing filler containing silica. The rubber composition has, when vulcanized, a storage modulus E?(?20° C.) at a temperature of ?20° C. and a storage modulus E?(30° C.) at a temperature of 30° C. such that the ratio between E?(?20° C.) and E?(30° C.) measured under conditions of a frequency of 10 Hz, an initial strain of 10%, and a dynamic strain of ±0.25% satisfies 2.0?E?(?20° C.)/E?(30° C.)?3.0.

Abstract: Provided a rubber composition for a tire that can improve processability while maintaining reinforcing property that is a property of a hydrogenated copolymer, and a pneumatic tire using the same. A rubber composition for a tire comprising 100 parts by mass of a hydrogenated copolymer obtained by hydrogenating an aromatic vinyl-conjugated diene copolymer, the hydrogenated copolymer having a weight average molecular weight measured by gel permeation chromatography of 300,000 or more and having a hydrogenation ratio of a conjugated diene moiety of 80 mol % or more, and 3 to 30 parts by mass of crosslinked rubber particles.

Abstract: A rubber composition for a tire having further improved processability while maintaining abrasion resistance that is a property of a hydrogenated copolymer, and a pneumatic tire using the same, are disclosed. A rubber composition for a tire comprising a solid rubber component containing a hydrogenated copolymer obtained by hydrogenating an aromatic vinyl-conjugated diene copolymer, the hydrogenated copolymer having a weight average molecular weight measured by gel permeation chromatography of 300,000 or more and having a hydrogenation ratio of a conjugated diene moiety of 80 mol % or more, and a liquid rubber.

Abstract: A thermoplastic elastomer composition including: a crystalline olefin resin (A) having a melting point of 100° C. or more; an olefin resin (B) satisfying requirements (B-1) to (B-3); and an ethylene/?-olefin copolymer (C), the weight ratio of (A)/((B)+(C)) is from 70/30 to 30/70, and the weight ratio of (B)/(C) is from 100/0 to 1/99: (B-1) the resin (B) has a main chain of an ethylene copolymer and a side chain of an ethylene polymer or a propylene polymer, the ethylene copolymer includes repeating units derived from ethylene and repeating units derived from at least one ?-olefin having 3 to 20 carbon atoms, and the repeating units derived from the ?-olefin contained within the range of 10 to 50 mol % to the total repeating units in the main chain; (B-2) the melting point measured by DSC rom 60° C. to 170° C.; and (B-3) Tg measured by DSC from ?80° C. to ?30° C.

Abstract: A propylene-based resin composition containing components (A), (B), and (C) is provided. The content of (A) is 50 to 89 parts by weight, the content of (B) is 11 to 50 parts by weight, and the content of (C) is 0.05 to 1 part by weight, based on 100 parts by weight of the total of (A) and (B). Component (A) is a propylene-based polymer, component (B) is a filler, and component (C) is a bis(3,4-dialkylbenzylidene)sorbitol represented by the formula (1) In formula (1), R1 and R2 each independently represent an alkyl group having 1 to 4 carbon atoms. It is possible to produce a molded article which has high rigidity and in which the linear expansion coefficients in the MD and the TD are small from the composition.

Abstract: A propylene resin composition containing (A), (B), (C), and (D) is provided. The content of (A) is 40 to 65 parts by weight, the content of (B) is 10 to 25 parts by weight, the content of (C) is 25 to 35 parts by weight, and the content of (D) is 0.01 to 0.3 parts by weight based on the total weight of (A), (B), and (C) being 100 parts by weight. (A) is a propylene-based polymer, (B) is an ethylene-?-olefin copolymer, (C) is a talc whose ratio of D50[L] to D50[S] is at least 4, and (D) is a nucleating agent having formula (1): R1 and R2 each independently represent an alkyl group having 1 to 8 carbon atoms or a halogen group, and m and n each independently represent an integer of 1 to 5. A molded article produced from the composition has low linear expansion coefficients.

Abstract: This invention relates to polymer particles for solid phase oligonucleotide synthesis. The oligonucleotide may be linked to the particle via a linker having an amide-oligoethyleneglycol-amine structure. The particles may be considered to act as a solid support during the oligonucleotide synthesis. Also disclosed are processes for preparing such polymer particles, compositions and systems comprising such particles, and uses thereof.

Abstract: A plasticized PVC formulation for foam extrusion including polyvinyl chloride, at least one plasticizer, at least one nucleating agent and a chemical blowing agent, wherein the plasticized PVC formulation is a dry blend containing 0.5 to 5% by weight of one or more nucleating agents and 0.1 to 3% by weight of the chemical blowing agent, wherein the blowing agent is sodium bicarbonate and the nucleating agent is talcum, and a foam extrusion method using said formulation. The extruded plasticized PVC foam is particularly suitable for rock shield pads used for pipeline protection. The foams are lightweight and require less consumption of materials with comparable properties to corresponding solid articles.

Abstract: The invention relates to a method for producing a polymer in water, comprising the preparation of an emulsion comprising a HASE-type copolymer and a mixture of a monomer comprising at least one polymerisable olefinic unsaturation and a radical-generating compound, followed by the polymerisation of the emulsified monomer by heating to a temperature higher than the temperature required for the polymerisation reaction. The invention also relates to the polymer produced in this way and to the use thereof.

Abstract: Provided is a modified polyolefin resin that is excellent in adhesion to nonpolar substrates such as a polyolefin substrate, and excellent in stability in an alcohol solvent. In the modified polyolefin resin, the following polymer (A) is grafted on the following resin (B). Polymer (A): a polymer including at least one constitutional unit selected from the group consisting of a constitutional unit derived from an ?,?-unsaturated carboxylic acid and a constitutional unit derived from a derivative of an ?,?-unsaturated carboxylic acid, and having a hydroxyl value in a range of 10 mgKOH/g or larger and 200 mgKOH/g or smaller. Resin (B): a polyolefin resin or a modified product thereof.

Abstract: The invention relates to a process for producing thermoplastic molding materials based on acrylonitrile-styrene-acrylate copolymers (ASA) having improved surface properties, in particular an improved stability of surface quality during storage in a hot and humid environment and a reduced content of residual monomers. The invention further relates to the use of a fluidized bed dryer and/or a flow dryer in the production of thermoplastic ASA molding materials for improving surface quality and the use of a fluidized bed dryer and/or a flow dryer in the production of thermoplastic ASA molding materials for reducing the content of residual monomers. The invention further provides ASA molding materials producible by means of the process according to the invention and also moldings.

Abstract: A polyester composition includes polybutylene terephthalate and an aliphatic-aromatic copolyester. Based on the total weight of the polybutylene terephthalate and the aliphatic-aromatic copolyester, the content of the polybutylene terephthalate is from 50 to 99% by weight, and the content of the aliphatic-aromatic copolyester is from 1 to 50% by weight. Further, a method for preparing such a polyester composition and a toughened composite material prepared therefrom. The polyester composition has an elongation at break of up to 230% or more, and an improved toughness without substantial loss of strength.

Abstract: A liquid crystalline polymer composition for foam molding using a supercritical fluid as a foaming agent. The liquid crystalline polymer composition includes a liquid crystalline polymer and a scale-like inorganic filler, in which a content of the scale-like inorganic filler is 1 part by mass or more and 20 parts by mass or less with respect to 100 parts by mass of the liquid crystalline polymer composition.

Abstract: The present invention relates to a thermoplastic composition with improved mechanical properties in order to broaden applications of this composition, especially outdoor application. Said thermoplastic composition comprising 60 to 80 parts by weight of aromatic polycarbonate and 20 to 40 parts by weight of acrylonitrile-styrene-acrylate polymer, characterized in that said aromatic polycarbonate has linear structure and its molecular weight is in a range of 20,000 to 35,000 g/mol; and said acrylonitrile-styrene-acrylate polymer comprising 60 wt % or more of rubber grafted with styrene and acrylonitrile polymer and 40 wt % or less of styrene and acrylonitrile polymer.

Abstract: This invention relates to polycarbonate compositions and articles comprising the same. The polycarbonate compositions comprise the following components: A) from 75 wt.-% to 97.5 wt.-% of a polycarbonate, B) from 1.5 wt.-% to 15 wt.-% of a flow promoter selected from alicyclic hydrocarbon resins, and C) from 1 wt.-% to 15 wt.-% of an impact modifier, in each case based on the total weight of the composition; wherein the composition comprises no polycarbonate-polysiloxane copolymer. The polycarbonate compositions of the present invention have good coating resistance, chemical resistance and impact properties as well as better flowability.

Abstract: A cross-linkable rubber composition including a polyether rubber, a cross-linking agent, and zinc peroxide is provided, the polyether rubber including 0.1 to 30 mol % of a unit represented by the following general formula (1) and 1 to 15 mol % of an unsaturated oxide monomer unit: wherein A+ is a group containing a cationic nitrogen-containing aromatic heterocyclic ring; the group containing a cationic nitrogen-containing aromatic heterocyclic ring bonds to a carbon atom at the position “2” shown in the above general formula (1) through one of nitrogen atoms constituting the cationic nitrogen-containing aromatic heterocyclic ring.

Abstract: The present disclosure provides for articles formed of a filled polymeric resin material. More specifically, the present disclosure relates to polymeric resin materials that include a filler that includes of a mixture of cured rubber granules, foam granules, and/or textile fibers. The filler can be suspended in and/or encapsulated by the polymeric resin material. The polymeric resin material, the filler, or both can include waste or scrap material from manufacturing or from ground post-consumer waste.

Abstract: This is to provide a stretchable film having excellent stretchability and strength and excellent water repellency on the surface of the film, a method for forming the same, a urethane resin used for the stretchable film and a silicon-containing compound as a material of the urethane resin. A silicon-containing compound represented by the following general formula (1), wherein, R1, R2, R3, R4, R5, and R6 each represents a linear, branched or cyclic alkyl group having 1 to 6 carbon atoms, a phenyl group, a 3,3,3-trifluoropropyl group or a group represented by —(OSiR7R8)n—OSiR9R10R11; R7, R8, R9, R10 and R11 are the same as those of R1 to R6; “n” is an integer in the range of 0 to 100; A represents a linear or branched alkylene group having 3 to 6 carbon atoms; and “m” is an integer in the range of 1 to 3.

Abstract: A thermoplastic molding composition containing A) 20 to 99.9 wt % of a thermoplastic polyamide, B) 0.1 to 40 wt % of an alkenylsuccinic acid derivative obtained by reaction of polyiso-butene (B1) having a number-average molecular weight Mn of 10,000 to 50,000 at temperatures of 180° C. to 250° C. with maleic acid or derivatives thereof (B2) in a stoichiometric ratio of at least 2 equivalents of ?,?-unsaturated mono- and dicarboxylic acid or derivatives thereof (B2) per reactive double bond in the polyisobutene (B1) for a duration of at least 15 minutes to 10 hours and up to 10 bar of positive pressure, wherein the derivatives are anhydrides, mono- or dialkyl esters, and mixed esters, and wherein the reactive double bonds are the sum total of the terminal ?- and ?-double bonds in the polyisobutene (B1), and C) 0 to 60 wt % of further additives, wherein the weight percentages for the components A) to C) sum to 100%.

Abstract: A pigment composition contains: an azo pigment that is a reaction product between a coupler and a base; and a pigment derivative, and a content of o-anisidine derived from the coupler is less than or equal to 20 mg/kg in the entire pigment composition. A method for producing the pigment composition includes, after reaction between a coupler and a base to generate an azo pigment, or during the reaction between the coupler and the base, adding a remover for o-anisidine derived from the coupler.

Abstract: A phosphole compound represented by the formula (wherein Ar1 and Ar2 are the same or different, and represent an optionally substituted aromatic hydrocarbon ring or an optionally substituted heteroaromatic ring; Ar3 represents a divalent ?-conjugated unit; R1 represents an optionally substituted alkyl group, an optionally substituted cycloalkyl group, an optionally substituted aryl group, or an optionally substituted heteroaryl group; R2 and R3 are the same or different, and represent a hydrogen atom, an optionally substituted alkyl group, an optionally substituted cycloalkyl group, an optionally substituted aryl group, or an optionally substituted heteroaryl group; and Z represents a reactive group) can provide a fluorescent dye capable of maintaining a high fluorescence quantum yield irrespective of solvent polarity, and providing an improved fluorescence quantum yield and light resistance even in environments containing large amounts of water.

Abstract: An inorganic particle/siloxane composite which comprises a product of cohydrolysis and cocondensation of (A) at least one compound or product selected from among silicon compounds represented by general formulae (1) to (4) and products of partial hydrolysis and condensation thereof and (B) inorganic particles which, when examined by the dynamic light scattering method, give a volume-based particle diameter distribution that has a 50%-cumulation particle diameter (D50) of 3-100 nm, wherein the number of silicon atoms derived from the silicon compound represented by general formula (2) is 20 mol % or more of the number of all the silicon atoms in the component (A). The component (B) is contained in an amount of 65 mass % or less with respect to the whole product of cohydrolysis and cocondensation. The inorganic particle/siloxane composite has satisfactory compatibility with silicone materials although containing substantially no volatile organic solvent.

Abstract: A non-aqueous solution-suspension of R2O—SiO2—B2O3 comprises in the dry state a composition of 2 to 30 weight percent R2O, wherein R2O is an alkali metal oxide; between 10 to 74 weight percent SiO2; and between 23 to 79 weight percent B2O3. Non-aqueous solution-suspensions are used to blend to give a liquid paint which, on drying, contains the composition within the range given above in the R2O—SiO2—B2O3 system. Non-aqueous bulk liquid and aerosol based spray paints are provided, with or without Boron Nitride additions, to allow the formation of tough, flexible coatings onto ferrous metals after bake-on.

Abstract: An object of the present invention is to provide a polymerizable composition with which a polymer having a high degree of hardness can be produced. Another object is to provide, for example, an optically anisotropic body, a phase retardation film, an optical compensation film, an antireflection film, a lens, and a lens sheet that are composed of the polymerizable composition and a liquid crystal display element, an organic light-emitting display element, a lighting element, an optical component, a coloring agent, a security marker, a laser emission member, a polarizing film, a coloring material, and a printed item that are produced using the polymerizable composition. The present invention provides a polymerizable composition including a polymerizable compound represented by General Formula (IA) which has a specific structure including a plurality of polymerizable groups.

Abstract: A substrate-treating method includes applying a treatment agent directly or indirectly on one face of a substrate to form a substrate pattern collapse-inhibitory film. The substrate includes a pattern on the one face. The substrate pattern collapse-inhibitory film is removed by dry etching after forming the substrate pattern collapse-inhibitory film. The treatment agent includes a compound including an aromatic ring, and a hetero atom-containing group that bonds to the aromatic ring; and a solvent.

Abstract: Methods and systems for coating metal substrates are provided. The methods and systems include a powder coating composition comprising a polymeric binder and an application package. The application package includes at least one antistatic component and at least one post-blended component. Use of the application package reduces back ionization and faraday cage effects during electrostatic application. The described methods provide coatings with optimal surface smoothness and edge coverage.

Abstract: The present invention relates to a self-adhesive powder composition comprising: at least one polyamide; at least one ethylene vinyl alcohol copolymer; at least one hydrophobic agent; and optionally at least one filler.

Abstract: A dry composition comprising 2 to 30 weight percent R2O (wherein R2O is an alkali metal oxide, K2O, Na2O, Li2O or mixtures thereof); 10 to 74 weight percent SiO2; and 23 to 79 weight percent B2O3. Aqueous solutions and/or colloidal suspensions (thus referred to as solution-suspensions) are used to blend to give a liquid-binder which, on drying, contains the composition within the range given above in the R2O—SiO2—B2O3 system. The dry composition is mixed with sufficient H2O to form the solution-suspensions. As described herein H2O may also be present in some additional additive.

Abstract: A method of protecting a carbon-containing composite material part against oxidation, includes applying a first coating composition in the form of an aqueous suspension on an outside surface of the part, the first coating composition including a metallic phosphate; a powder of an ingredient comprising titanium; and a powder of B4C; subjecting the applied first coating composition to heat treatment in order to obtain a first coating on the outside surface of the part; applying a second coating composition on the first coating composition, the second coating composition including an aqueous suspension of colloidal silica; a powder of borosilicate glass; and a powder of TiB2; and subjecting the applied second coating composition to second heat treatment in order to obtain a second coating on the first coating.

Abstract: An antimicrobial paint composition for forming an antimicrobial coating is disclosed. The antimicrobial paint composition comprises a carrier vehicle, a film-forming polymer, a glass comprising copper, and a non-copper pyrithione salt. A method of preparing the antimicrobial coating on an indoor surface with the antimicrobial paint composition is further disclosed. The method comprises applying the antimicrobial paint composition on the indoor surface and forming the antimicrobial coating on the indoor surface from the antimicrobial paint composition.

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: This invention is directed to a polymerizable, cold-curing (meth)acrylate system for floor coating.

Abstract: The present invention relates to an aqueous gravure ink containing a pigment, a polymer, a water-soluble organic solvent, a surfactant and water, in which the water-soluble organic solvent contains a glycol ether having a boiling point of from 100 to 260° C., and a content of the glycol ether in the ink is from 1 to 10% by mass; a total content of the water-soluble organic solvent in the ink is not more than 15% by mass; the surfactant contains an acetylene glycol-based surfactant; and a content of water in the ink is from 50 to 70% by mass.

Abstract: A resin for an active energy ray curable ink contains a rosin-modified unsaturated polyester resin (A). The rosin-modified unsaturated polyester resin (A) is a reaction product of a material component containing rosins (a), ?,?-unsaturated carboxylic acids (b), and polyols (c); the mole ratio of an unsaturated bond based on the ?,?-unsaturated carboxylic acids (b) with respect to the total amount of the material component is 0.50 mol/kg or more and 2.00 mol/kg or less; the rosins (a) contain a stabilization-treated rosin at a ratio of 90 mass % or more with respect to the total amount of the rosins (a); the ?,?-unsaturated carboxylic acids (b) contain ?,?-unsaturated dicarboxylic acids; and the polyols (c) contain a trihydric or more alcohol.

Abstract: Provided is a composition suitable for a process of building a three-dimensional object layer-by-layer by electromagnetic radiation-generated sintering, including at least one poly(aryl-ether-ketone) (PAEK), where the composition has an aromatic ether content of from 0 and 0.4% by mass, based on the total mass of the composition, and an aluminium mass content of lower than 1000 ppm. The composition may be used in process for building an object comprising sintering the composition with electromagnetic radiation. The present invention also includes a three-dimensional object obtained by such a process. A process for preparing the composition is also provided.

Abstract: The present disclosure relates to compositions and methods for three-dimensional printing.

Abstract: A polymer material suitable for three-dimensional printing that may include at least one of polyether block amide, thermoplastic polyeurothane, and thermoplastic olefin. The polymer is formed through chemical precipitation forming a precipitated pulverulent polymer which possesses increased operating window characteristics selected from the group consisting at least one of a wider than typical range between and among the melting and recrystallization temperatures, a larger enthalpy upon melting, and a low volumetric change during recrystallization.