Abstract: The invention relates to a method of isolating a lignin fraction from a solution comprising solubilised lignin, the method comprising the steps of adding water to a solution comprising solubilised lignin and a hydrotrope, thereby lowering the hydrotrope concentration, until a part of the lignin becomes insoluble, and isolating the insoluble lignin.

Abstract: The disclosure provides a process to produce a polypropylene composition remarkable in that it comprises providing from 30 to 75 wt. % of a component A based on the total weight of the composition, the component A being one or more propylene homopolymer resins; providing from 25 to 70 wt. % of a component B based on the total weight of the composition, the component B being one or more random propylene copolymer resins comprising propylene and one or more comonomers selected from ethylene and C4-C20 alpha-olefin, wherein the content of the comonomers is at least 5.0 wt. % based on the total weight of the component B; melt-blending the components to form the composition having a comonomer content ranging from 2.5 to 4.5 wt. % based on the total weight of the composition. The disclosure also relates to such a composition and an article made from said composition.

Abstract: The present invention relates to an epoxy-resin composition as matrix component for sheet molding compounds (SMC) and/or bulk molding compounds (BMC), comprising a resin component comprising at least one epoxy resin and a hardener component comprising at least one aminoalkylimidazole compound, at least one diazabicycloalkylen compound and at least one latent hardener. In said epoxy-resin composition, the amount of the aminoalkylimidazole compounds used is in the range from 0.007 to 0.025 mol per mole of epoxy groups of the entire composition. The invention also relates to a fiber-matrix-semifinished-product composition (SMC composition or BMC composition) with, as matrix component, the epoxy-resin composition mentioned, and with, suspended therein, short reinforcement fibers with an average length of from 0.3 to 5.0 cm.

Abstract: A method for manufacturing a gas diffusion layer for a fuel cell includes agitating a solution containing a precursor to form wire-shaped structures of the precursor and entangle the wire-shaped structures in the solution, adding the precursor to a surface layer portion of a porous base sheet or a base sheet precursor so as to fill pores in the surface layer portion, and calcining the base sheet or the base sheet precursor and the precursor in a range of 1000° C. to 1200° C., thereby forming a porous carbon that is composed of multilayer cavity walls of graphene and has mesoporosity and a hollow wire-shaped crystal structure.

Abstract: A polymer film includes at least one type of polymer selected from a resin and fillers dispersed in the polymer, in which an average maximum length of the fillers in a cross section of the polymer film taken in a thickness direction is 10 ?m or less, and density of the polymer film is 1.0 g/cm3 or more and 2.0 g/cm3 or less.

Abstract: Disclosed herein are methods and compositions for preparing a surface comprising thermoplastic or thermoset material to receive a polysulfide or polythioether sealant or coating, the method comprising applying to the surface an activating composition consisting of a tetraalkoxide of a Group 4 metal, a complex of an alkoxide of a Group 4 metal, or a combination thereof.

Abstract: The invention relates to a coated film and a method for preparing the same, use of the coated film for manufacturing shaped bodies, a method for manufacturing shaped bodies from the coated film, and a shaped body made therefrom. The coated film comprises a plastic film with Shore hardness of not less than 80A and a coating formed by applying an aqueous coating composition to the plastic film, wherein the plastic film is a film of a thermoplastic polyurethane based on polyester polyol, and the aqueous coating composition comprises: a. 45% by weight to 85% by weight of a dispersion of an anionic polyurethane based on polycarbonate polyol; b. 0% by weight to 40% by weight of a dispersion of an anionic polyurethane based on polyether polyol; c. 2% by weight to 18% by weight of a dispersion of anionic silica; d. 0.5% by weight to 10% by weight of a blocked isocyanate; and e. 0.1% by weight to 10% by weight of an additive; the amounts above being relative to the total weight of the composition.

Abstract: The invention relates to a composition for producing phenolic foam, comprising at least one phenolic resin, at least one blowing agent, at least one catalyst, and at least one solid, where the composition comprises at least one surfactant selected from the group of silicon-free quaternary ammonium compounds.

Abstract: This disclosure relates to silicone foam compositions for forming foamed silicone elastomers, the respective foamed silicone elastomers formed therefrom and to methods of making such compositions and foamed silicone elastomers. The silicone rubber foam composition comprises the (a) one or more organosilicon compounds having an average of at least two silicon bonded alkoxy groups per molecule selected from one or more silicone resins and/or silicone resin intermediates; (b) a Lewis acid catalyst; (c) one or more surfactants; and (d) one or more organopolysiloxane polymers having an average of at least two, alternatively at least three silicon bonded hydrogen groups per molecule.

Abstract: The invention relates to the field of structural reinforcement, sealing, damping, baffling, or the like of elements, preferably of hollow structures or cavities, by means of a thermally expandable composition comprising (i) a polymer component; (ii) azodicarbonamide; and (iii) a metal oxide powder capable of catalyzing thermal decomposition of azodicarbonamide at elevated temperature, wherein at least about 90 wt.-% of particles within the metal oxide powder have a particle size of at most about 200 ?m determined by sieve analysis; wherein the weight ratio of the azodicarbonamide to the metal oxide powder is at least about 5.0, preferably at least about 10, more preferably at least about 15, still more preferably at least about 16.50, preferably about 17, and yet more preferably at least about 20; preferably at most about 80; more preferably at most about 70, still more preferably at most about 60, yet more preferably at most about 50, even more preferably at most about 40, most preferably at most about 30.

Abstract: Described herein are physically crosslinked, closed cell continuous foam structures comprising low density polyethylene (LDPE), linear low density polyethylene (LLDPE), or a combination of LDPE and LLDPE, and olefin block copolymer (OBC). The foam structure can be obtained by extruding a foam composition comprising LDPE, LLDPE, or a combination of LDPE and LLDPE, and OBC, irradiating the composition with ionizing radiation, and foaming the composition.

Abstract: Disclosed herein are a process of preparing a polyurethane elastomer foam, a polyurethane elastomer foam prepared by the process, and a method of using the polyurethane elastomer foam.

Abstract: A process for producing a polyurethane or polyisocyanurate construction board, the process comprising of providing an A-side reactant stream that includes an isocyanate-containing compound; providing a B-side reactant stream that includes a polyol, where the B-side reactant steam includes a blowing agent mixture including isopentane and a blowing agent additive that has a Hansen Solubility Parameter (?t) that is greater than 15 MPa0.5; and mixing the A-side reactant stream with the B-side reactant stream to produce a reaction mixture.

Abstract: A coated insulation product with a reduced fluorinated blowing agent concentration, while maintaining acceptable thermal properties (e.g., a 180-day R/in value of at least 4.8), is disclosed. The coated insulation product includes a foam product formed from a foamable composition comprising: a matrix composition; and a blowing agent composition comprising less than 3.5 wt. % of a fluorinated alkene, based on a total weight of the foamable composition. The foam product is coated with 3 g/m2 and 225 g/m2 of a barrier coating composition on at least one surface. The barrier coating composition includes: 40 wt. % to 99.9 wt. % of a barrier polymer having a minimum degree of crystallinity of 10%; and 0.01 wt. % to 60 wt. % of at least one additive.

Abstract: A coated insulation product formed with a low GWP blowing agent composition is disclosed that is capable of achieving a 180-day R/in insulation value of at least 5. The coated insulation product includes a foam product formed from a foamable composition comprising: a matrix composition; and a blowing agent composition a blowing agent composition comprising 15 wt. % to 60 wt. % of a fluorinated alkene and 40 wt. % to 85 wt. % of a co-blowing agent. The foam product is coated with 3 g/m2 and 225 g/m2 of a barrier coating composition on at least one surface.

Abstract: The method of making polyacrylamide (PAM) aerogel are described. Different ratios of PAM in the construction of aerogels were tested. The material was tested for water retention after drying. freeze-dried aerogel samples especially PAM 15 wt %, have a higher swelling ratio with a faster water absorption rate compared to gel and oven-dried samples.

Abstract: Disclosed are an aerogel with a hierarchical pore structure formed using a pulsed laser technology, and a preparation method and use thereof. In the preparation method, a nano silicon-containing inorganic material as a freezing element, a biomass polymer as a cross-linking agent, and deionized water as a solvent are mixed and a resulting mixture is left to stand and gelatinized to obtain a hydrogel; the hydrogel is frozen to form ice crystals therein, and the ice crystals are removed by freeze-drying to obtain a micron-nano porous aerogel; the micron-nano porous aerogel is subjected to customized millimeter-scale punching using a pulsed laser to obtain an aerogel with a millimeter-micron-nano hierarchical pore structure.

Abstract: Proposed are a plastic foam product added with EVA recycled pellets and a method of manufacturing the same, in which there is provided a process for manufacturing a shoe sole by recycling shoe molding waste generated due to defective judgment during a shoe manufacturing process and used shoe waste discarded after use of finished shoe products, thereby allowing shoe manufacturing to meet the trend of pursuing eco-friendly products in Korea and in markets such as Europe, and there is provided a process in which dispersion between materials is strengthened in the process of manufacturing a plastic foam product by adding EVA recycled pellets to an EVA foam compound and mixing them with each other, thereby enabling uniform foaming and thus realizing a good shape and improving the strength and quality of the product.

Abstract: An article includes a permeable material having a surface; and a hydrophobic coating on the surface forming a hydrophobic surface, the hydrophobic coating being free of fluorine, and the hydrophobic surface having a water-contact angle of 95 degrees or greater. The article may be a vent. A method of making the hydrophobic article includes applying a hydrophobic material onto a permeable material; and curing the hydrophobic material to form a hydrophobic surface. The hydrophobic coating may include siloxane.

Abstract: Toughened thermoplastic polymers having elastomeric domains in thermoplastic polymer may be recycled by a method comprising dissolving the thermoplastic polymer in a solvent to form a solution, wherein the elastomer is dispersed within the solution as elastomer particulates or droplets, applying a sufficient centrifugal force to the solution to separate the elastomeric particulates or droplets from the solution to form a separated system and (c) recovering the thermoplastic polymer and elastomeric polymer by removing one or both from the separated system. The recovered elastomer and thermoplastic polymer may then be reused in the same type, similar or differing plastics avoiding degradation typically found when recycling toughened thermoplastic polymers.

Abstract: A depolymerization liquid generation system includes: a depolymerization liquid generation device configured to knead waste plastics and predetermined liquid to generate depolymerization liquid; a depolymerization liquid concentration device configured to heat the depolymerization liquid generated by the depolymerization liquid generation device to separate the depolymerization liquid into concentrated depolymerization liquid and gas; and a condensing device configured to condense the gas separated by the depolymerization liquid concentration device to generate condensed liquid. The depolymerization liquid generation device includes a kneader configured to knead the waste plastics and the predetermined liquid. The condensed liquid generated by the condensing device is mixed into the kneader.

Abstract: Processing facilities, systems, devices, equipment, and associated methods of processing for recycling thermosetting polymers are described herein. In one example, a process includes reacting, under atmospheric pressure, a thermosetting polymer with a catalytic solution containing a solvent having sulfolane and/or a derivative thereof. The reaction converts the thermosetting polymer to polymer fragments dissolvable in the sulfolane and/or the derivative thereof of the catalytic solution. The process then includes causing the polymer fragments to precipitate as solid polymer fragments from the catalytic solution and separating the precipitated polymer fragments from the catalytic solution. As such, the thermosetting polymer can be recycled as the solid polymer fragments.

Abstract: This polyester resin comprises a bis(2-hydroxyethyl) terephthalate monomer which is obtained by depolymerization of waste polyester and which has a diethylene glycol ester content adjusted to be a certain level or less. The polyester resin, despite of being a recycled resin, has the same level of quality as the original resin and thus can be used in manufacturing articles in various fields.

Abstract: Systems and methods are provided that involve a subcritical water reaction to recycle the cellulose and polyester components of waste cotton and cotton/polyester blend textiles that would otherwise be discarded or disposed of. Specifically, the disclosed methods provide for treatment of the waste textiles to produce advanced materials including cellulose and terephthalic acid (TPA) with a low environmental impact. The cellulose and TPA that are produced are of a high quality allowing for production of regenerated cellulose and regenerated polyethylene terephthalate (PET) suitable for fiber spinning and textile applications.

Abstract: An opaque lightly coloured thermoplastic moulding composition is made having improved long-term weathering stability as well as excellent optical appearance, especially high colour brilliance. The thermoplastic moulding compositions include the combination of an inorganic pigment and an organic soluble dye, wherein the inorganic pigment is selected from specific mixed metal oxides and mixed metal oxosulfides. A process is also made to produce the coloured moulding composition. Colouring compositions, such as masterbatches, which can be used for producing the coloured thermoplastic moulding composition are further developed. Opaque lightly coloured formed articles are finally made from the thermoplastic moulding composition, for example injection moulded articles and extruded articles.

Abstract: A composition contains at least one or more thermal conductive fillers and a resin or rubber, in which the fillers have a shape factor SF1 of 120 or more and 400 or less and a shape factor SF2 of 140 or more and 325 or less.

Abstract: The present disclosure provides curable rubber compositions and methods of curing same.

Abstract: A curable resin composition includes 10 wt % to 70 wt % of at least one moisture curable resin, 10 wt % to 50 wt % of a plasticizer having a Brookfield viscosity of less than 25 cP at 23° C., and 0.1 wt % to 5 wt % of a non-tin catalyst. A method for producing a curable resin composition includes mixing 10 wt % to 70 wt % of at least one moisture curable resin, 10 wt % to 50 wt % of a plasticizer, and 0.1 wt % to 5 wt % of a non-tin catalyst.

Abstract: A polyacetal resin composition includes: 100 parts by weight of a polyacetal resin (A), 0.2 to 10.0 parts by weight of a fatty acid metal salt (B), and 0.2 to 10.0 parts by weight of a fatty acid ester compound (C), wherein the fatty acid metal salt (B) is fatty acid zinc, fatty acid magnesium, or a combination thereof, and the fatty acid ester compound (C) is a compound having 3 or more ester bonds in a single molecule thereof.

Abstract: Provided is a fluoroelastomer crosslinkable composition containing a fluoroelastomer (a) and a cross-linking agent (b), wherein the cross-linking agent (b) is at least one selected from the group consisting of: a compound (b1) having one or more hydroxy groups and containing a structure represented by the following general formula (b1); a compound (b2) having two or more hydroxy groups and containing a structure represented by the following general formula (b2); and a salt of either the compound (b1) or the compound (b2) with an alkali metal, an alkaline earth metal, or an onium compound: wherein hydrogen atoms bonded to carbon atoms constituting a ring are optionally replaced with any substituent, and a carbon-carbon bond constituting a ring is optionally shared with another ring.

Abstract: The present disclosure provides for latent curing accelerators as well as compositions containing such a latent curing accelerator with a substance to be cured (e.g., an epoxy resin). The latent curing accelerators comprise an amine and an encapsulant system having at least one additional excipient selected from a functional component and/or a non-functional component. Methods of making and use are further provided.

Abstract: The present disclosure provides organic fine particles and a slip-resistance agent composition which are capable of providing excellent slip-resistance to a base material. Said organic fine particles contain a polymer having a repeating unit formed of: (I) a hydrophobic monomer that has a single ethylenically unsaturated double bond and at least one branched or cyclic hydrocarbon group having 3-40 carbon atoms; and, if necessary, (II) a cross-linking monomer having at least two ethylenically unsaturated double bonds. Said slip-resistance agent composition contains (A) the organic fine particles and (B) an aqueous medium.

Abstract: A composition includes thermoplastic polyurethane, a flame retardant and a filler. The thermoplastic polyurethane is the reaction product of a diisocyanate, a polyetherpolyol and a chain extender. The polyetherpolyol includes polytetrahydrofuran with a number average molecular weight of the polyetherpolyol between 1.3×103 g/Mot and 1.8×103 g/Mol, and the e-modulus of the composition determined according to DIN EN ISO 527 is between 0.1×103 MPa and 10×103 MPa.

Abstract: Provided is a resin composition containing a compound represented by Formula (1) and a resin, in which, in Formula (1), Q1 represents a group represented by Formula (Q-1), Q2 represents ?O, ?S, ?NRq1, or ?CRq2Rq3, Rq1 to Rq3 each independently represent a hydrogen atom or a substituent, and Rq2 and Rq3 may be bonded to each other to form a ring, provided that, in a case where Rq2 and Rq3 are bonded to each other to form a ring, ?CRq2Rq3 does not have the same structure as Q1, R1 and R2 each independently represent a hydrogen atom or a substituent, and X1 to X4 each independently represent —S— or the like. The present invention also relates to a cured substance, an optical member, an ultraviolet absorber, a compound, a production method of a compound, and a polymer.

Abstract: A method for manufacturing a play-of-color article includes the steps of: (a) providing a first mixture that contains a solvent and a plurality of functionalized colloidal particles; (b) replacing the solvent of the first mixture with a polymer solution that contains polymers, thereby obtaining a second mixture; (c) adding an initiator to the second mixture to obtain a third mixture, followed by injecting the third mixture into a mold and disturbing the third mixture, so that the third mixture is formed with a pattern; (d) leaving the third mixture to stand, so as to allow the functionalized colloidal particles therein to self-assemble to form a crystalline arrangement, thereby obtaining a fourth mixture; and (e) subjecting the polymers in the fourth mixture to a cross-linking reaction, thereby obtaining the play-of-color article. A play-of-color article manufactured by the method, and a play-of-color product including the play-of-color article are also provided.

Abstract: The present disclosure provides for latent curing accelerators as well as compositions containing such a latent curing accelerator with a substance to be cured (e.g., an epoxy resin). The latent curing accelerators comprise an amine and an encapsulant system having a polyphenol resin with at least one additional excipient. Methods of making and use are further provided.

Abstract: A method for producing an engineered crumb rubber asphalt additive may comprise the steps of adding a non-elastomeric liquid to a plurality of structural particles and mixing the non-elastomeric liquid and the plurality of structural particles for a short period of time so that the non-elastomeric liquid coats a least a portion of the surface of the plurality of the structural particles. The structural particles may be crumb rubber particles.

Abstract: Solid cellulose particles contain cellulose as a main component. The cellulose particles have a volume average particle diameter D of from 1 ?m to 30 ?m inclusive and a circularity of 0.86 or more. A value A represented by the following formula (1) is less than 0.15: (wherein, in formula (1), D is the volume average particle diameter (?m) of the cellulose particles, and S is a BET specific surface area (m2/g) of the cellulose particles).

Abstract: Cellulose particles contain cellulose as a main component. The cellulose particles have a kinetic friction coefficient of 0.42 or less, a bulk density of 0.40 g/cm3 or less, and a solidity of 50% or more.

Abstract: Cellulose particles each include: a base particle containing cellulose as a main component; and a coating layer that covers the base particle and contains a coating material other than a coupling agent.

Abstract: The molding material of the present disclosure includes a cellulose fiber and a specific cellulose derivative in which a part of the hydrogen atoms constituting the hydroxy groups of cellulose is substituted with a chemical structure represented by the following formula (1) and another part of the hydrogen atoms is substituted with a chemical structure represented by the following formula (2), wherein the content of the cellulose fiber is 50 mass % or more and 70 mass % or less.

Abstract: The present application discloses melt processable cellulose ester compositions comprising a cellulose ester, at least one alkaline additive, and at least one neutralizing agent. Plasticizers can be optionally used in the compositions. The present application also discloses processes for preparing the compositions and articles that can be made from the compositions. The compositions show improved degradation properties.

Abstract: The present application discloses melt processable cellulose ester compositions comprising a cellulose ester, at least one alkaline additive, and at least one neutralizing agent. Plasticizers can be optionally used in the compositions. The present application also discloses processes for preparing the compositions and articles that can be made from the compositions. The compositions show improved degradation properties.

Abstract: The molding material of the present disclosure includes a cellulose fiber and a specific cellulose derivative in which a part of the hydrogen atoms constituting the hydroxy groups of cellulose is substituted with a chemical structure represented by the following formula (1) or (3) and another part of the hydrogen atoms is substituted with a chemical structure represented by the following formula (2) or (4), wherein the content of the cellulose fiber is 50 mass % or more and 70 mass % or less.

Abstract: In accordance with one aspect of the exemplary embodiment, a rubber composition includes at least 20 phr of a composite material, at least 3 phr of a conjugated diene elastomer, a cure activator, and a sulfur-based cure agent. The composite material includes a reinforcing carbon black dispersed in natural rubber. The composite material and conjugated diene elastomer together provide at least 90 phr of vulcanizable elastomers in the rubber composition. The rubber composition may further include a reinforcing filler other than carbon black. The reinforcing filler may include silica. The rubber composition may include at least 5 phr, or at least 8 phr of silica, or up to 30 phr, or up to 18 phr of silica.

Abstract: The present disclosure is directed to providing a tire rubber composition capable of achieving both on-ice performance and breaking resistance (especially, breaking resistance after exposure to high temperatures) of a tire rubber member having voids, and the solution is to provide a tire rubber composition including a rubber component, a void-introducing agent, and an amine-based antioxidant represented by the following general formula (1): where R1 and R2 are each independently a monovalent saturated hydrocarbon group, wherein the content of the amine-based antioxidant is 0.1 to 11 parts by mass per 100 parts by mass of the rubber component.

Abstract: A rubber composition suited to forming a tire ply includes 100 phr of elastomer, at least 30 phr of an intermediate carbon black, at least 5 phr silica, such as high surface area silica particles, at least 0.1 phr of a tear strength agent, a sulfur-based curing agent, and an accelerator for the curing agent. The elastomer incudes 60-100 phr of a conjugated diene elastomer. The intermediate carbon black has a statistical thickness surface area (STSA) of from 50 m2/g to 70 m2/g.

Abstract: The present invention relates to a cross-linkable rubber composition, a cross-linked rubber composition obtained by cross-linking such a rubber composition, a method of preparing a tyre and a tyre. The cross-linkable rubber composition comprises, per hundred parts by weight of rubber (phr): ?10 phr to ?20 phr of a natural rubber or an isoprene rubber or a combination thereof; a filler; a resin, and first and second coupling agents, wherein the first coupling agent is a mercaptosilane and the second coupling agent is a silane selected from a disulfide silane, a tetrasulfide silane, or a combination thereof, wherein the rubber composition comprises ?80 phr to ?90 phr of a solution polymerized styrene-butadiene rubber (SSBR) comprising an alkoxysilane group and a primary amino group, and wherein the weight by weight ratio of the mercaptosilane to the silane is in a range of ?2:1 to ?4:1.

Abstract: Provided is a roofing membrane composition comprising metallocene-catalyzed alpha-olefin polyethylene and a random polypropylene copolymer. The polymer blend is quite useful in a roofing membrane which exhibits excellent performance. The excellent performance is particularly evident in the mechanical properties and thermal properties of the roofing membrane.

Abstract: Described herein are physically crosslinked, closed cell continuous foam structures comprising low density polyethylene (LDPE), linear low density polyethylene (LLDPE), or a combination of LDPE and LLDPE, and olefin block copolymer (OBC). The foam structure can be obtained by extruding a foam composition comprising LDPE, LLDPE, or a combination of LDPE and LLDPE, and OBC, irradiating the composition with ionizing radiation, and foaming the composition.