Abstract: Disclosed are a supercritical thermoplastic foam elastomer material and a preparation method and application thereof, belonging to the technical field of foam materials. The supercritical thermoplastic foam elastomer material comprises a thermoplastic elastomer, talc powder, a chain extender and an auxiliary material. According to the invention, a TPU raw material is injection-molded into a shape corresponding to a midsole, and can be directly molded after foaming without being cut. In addition, because the TPU raw material is integrally formed by injection molding, the particles of the popcorn material will not be adhered, and the defect of adhesion between the particles can be ameliorated.

Abstract: The present disclosure related to a silicone-based foam may include a component A and a component B, where the component A may include a silicone-based matrix component, a first filler component that may include alumina trihydrate, a second filler component that may include perlite, and a third filler component that may include calcium carbonate, and where the component B may include a silicone-based matrix component, a first filler component that may include alumina trihydrate, a second filler component that may include perlite, a third filler component that may include calcium carbonate, and a fourth filler component that may include zinc borate. The silicone-based foam may have a V-0 flammability rating as measured according to ASTM D3801.

Abstract: An object of an embodiment of the present invention is to provide poly(3-hydroxyalkanoate)-based expanded particles and a poly(3-hydroxyalkanoate)-based foamed molded product both of which are obtained by a single expansion treatment and have a high expansion ratio. Provided are poly(3-hydroxyalkanoate)-based expanded particles and a poly(3-hydroxyalkanoate)-based foamed molded product both of which include a poly(3-hydroxyalkanoate) composition containing a non-ionic water-soluble polymer.

Abstract: Foamable and foamed aqueous compositions can be used to provide foamed, opacifying elements for use as light-blocking window shades, curtains, or other materials. These light-blocking articles can also have a printable outer surface that accepts ink for making printed images that are not observable from the opposite surface. Such foamable and foamed aqueous compositions comprise nonporous polymeric particles.

Abstract: A product, especially a master-batch for producing thermally expandable compositions, is obtainable or obtained by reacting, preferably by extruding, a mixture including: (a) at least one polymer P, cross-linkable by peroxide, and (b) at least one coagent, especially an acrylate A, and (c) at least one peroxide PE, wherein the mixture is reacted such that the product has an average melt flow index (MFI) of between 0.1 and 8 g/10 min.

Abstract: A composition for forming polyurethane foam including a polyol mixture containing two or more polyols having different melting points, an isocyanate compound, and a blowing agent, wherein the two or more polyols are respectively included in the same weight ratio. A foam for a vehicle seat including a polyurethane foam manufactured from the composition for forming polyurethane foam described above. A method of manufacturing a foam for a vehicle seat including manufacturing a polyurethane foam from the composition for forming polyurethane foam described above, and coating a coating layer composition containing 1 to 5 wt % of carbon nanotubes on at least one surface of the polyurethane foam. A vehicle seat including the foam for a vehicle seat described above.

Abstract: The present invention provides a thermally expandable microcapsule from which a foam molded article that has a uniform surface, is less prone to surface unevenness, and has an excellently light weight can be produced. The present invention also provides a foamable masterbatch and a foam molded article each produced using the thermally expandable microcapsule. Provided is a thermally expandable microcapsule including: a shell; and a volatile expansion agent as a core agent encapsulated by the shell, the thermally expandable microcapsule satisfying D10/D50 of 0.6 or more and 1.0 or less and D99/D50 of 1.0 or more and 2.

Abstract: According to one embodiment, a mixture includes a fluoropolymer monomer having at least one functional group amenable to polymerization, a pore-forming material, and a polymerization initiator. According to another embodiment, a product includes a porous three-dimensional structure comprising a crosslinked fluoropolymer, where at least 20% of a volume measured within an outer periphery of the porous three-dimensional structure corresponds to the pores.

Abstract: A porous resin used to solid phase synthesis and a preparation method therefor, specifically being a porous resin having functional groups being an amino group or a hydroxyl group and a preparation method therefor. Using an olefin compound containing two cyano groups as a modified monomer, using a high internal phase emulsion as a pore-foaming agent, and performing suspension polymerization to prepare the porous resin. And then functionalizing the porous resin to obtain the porous resin having functional groups being an amino group or a hydroxyl group. Different from the existing preparation method, the modified monomer can make the distribution of the functional groups more uniform, and make the swelling degrees of the porous resin in different solvents close. The high internal phase emulsion pore-foaming agent can make the pore size distribution of the carrier narrower.

Abstract: The invention relates to a foaming process using carbon dioxide solution, comprising: put a parison into the carbon dioxide solution for primary foaming, remove and put the parison into the carbon dioxide solution for secondary foaming to get the foam product. Compared with foaming process using high-pressure gas directly, the foaming process using polar liquid system can get a uniform foam structure with high foaming rate faster, and has good foaming effect for high crystalline polymers. To control the change of temperature and pressure after the introduction of carbon dioxide, the impact and penetration of carbon dioxide on the surface of the crosslinked material can be controlled first, and the solubility of carbon dioxide in the polar system can be improved by further increasing pressure and temperature, thereby promoting the formation of uniform foam structure with high foaming rate in the subsequent heat foaming process.

Abstract: The present invention provides a sulfur containing polyisocyanate polyaddition (PIPA) polyether polyol dispersion at a readily processible viscosity for use in making flexible polyurethane foams having inherent flame retardant properties that comprises a polyether polyol carrier and from 10 to 25 wt. %, based on the total weight of the dispersion, of particles of a sulfur containing polyisocyanate polyaddition (PIPA) polyether polyol having a particle size diameter (PSD), as determined by laser light scattering, of 90%, by volume, of the particles in the dispersion having a maximum PSD of from 0.2 to 4.5 ?m and that, further, contain two or more aromatic carbamate groups. The dispersion may further comprise water or a blowing agent, g) one or more catalysts; and f) one or more polyisocyanates in a foam forming mixture.

Abstract: A manufacturing method of a porous polyimide film, includes: preparing a polyamic acid solution at a concentration of 10 to 30 wt % by dissolving a diamine compound and a dianhydride in a solvent; applying the prepared polyamic acid solution to a substrate to prepare a film and then immersing the same in a non-solvent for 30 minutes to 180 minutes; and taking out the immersed film and thermally curing the same; and a porous polyimide film manufactured thereby.

Abstract: A foamable polypropylene composition, and foamed polypropylene and a preparation method therefor are provided. The polypropylene composition comprises polypropylene, a polypropylene modifier, a foaming agent, and an optional nucleating agent. A preparation method for the polypropylene modifier comprises: enabling polar monomer grafted polypropylene to be in contact with a component A to react and carrying out extruding pelletizing, wherein a polar monomer in the polar monomer grafted polypropylene can chemically react with the component A; the polar monomer is selected from at least one of dimethylamino methacrylate, epoxy acrylate, trimeric acrylic isocyanurate, and acrylamide; and the component A is selected from at least one of polyisocyanate, polyethylene oxide, and an amido-containing substance. The foamed polypropylene has an obtained foaming ratio of 12 times or more, and also has high tensile and flexural properties.

Abstract: A shape memory polymer foam comprising a reaction product of a reaction of an epoxide and a thiol monomer in the presence of an organobase is provided. In addition, a method of making the shape memory polymer foam is provided. The method includes reacting an epoxide with thiol monomers in the presence of an organobase to form the shape memory polymer foam.

Abstract: An open cell foam, and particularly aerogels or other foams, having an inorganic, hydraded phase change material (PCM) embedded within pores or cells or a network within the foam have fire retardant, fire resistant and thermal insulating properties. These composite materials are preferably monolithic in character, and are mechanically robust allowing for example the attachment of nails or screws. With the PCM distributed throughout the open cell foam, the composite material has a wide array of applications including providing thermal, fire resistant, and fire retardant uses in battery containers, in automotives and other vehicles, etc.

Abstract: The present invention relates to: a method for producing a polyimide aerogel having low dielectric properties, high insulation, and high strength; and a polyimide aerogel prepared therefrom. The present invention has the technical gist of a method for producing a polyimide aerogel having low dielectric properties, high insulation, and high strength, and a polyimide aerogel prepared therefrom, the method including: a first step of preparing a solvent; a second step of preparing a polyamic acid resin by reacting a diamine-based monomer with an acid anhydride monomer in a solvent; a third step of preparing a polyimide resin solution by imidizing the polyamic acid resin at 150 to 200° C.

Abstract: A compact, highly expandable sorbent made from polymeric materials is contemplated. The resulting sorbent can absorb more than 20 times its original volume owing to an internal foam-like structure having micron-level voids bisected by internal struts which themselves have nano-level pores. Further, this sorbent can be compressed and reused multiple times, thereby making it an ideal substance to facilitate separation of disparate fluids, such as oils floating on or within an aqueous solution.

Abstract: A polymer composition includes a) ?10 wt % and ?60 wt % of a high melt strength polypropylene, b) ?10 wt % and ?35 wt % of a polyethylene, c) ?10 wt % and ?60 wt % of a first polypropylene, wherein the first polypropylene is chosen from the group of propylene homopolymers, propylene copolymers and/or mixtures thereof, and d) ?0 wt % and ?60 wt % of a second polypropylene, wherein the sum of the high melt strength polypropylene, the first polypropylene and the second polypropylene is ?60 wt % based on the sum of the weight of the high melt strength polypropylene, the polyethylene, the first polypropylene and the second polypropylene. The polyethylene has a density ?940 kg/m3 and ?970 kg/m3 as determined according to ISO 845 (2006).

Abstract: Systems, devices, and methods for a cosmetic sponge comprising: a prepolymer material and a bio-based material, where the prepolymer material and the bio-based material are reacted with an additive component comprising water and bio-based material dissolved in the water.

Abstract: A crosslinkable and foamable composition is provided, which comprises a hydrogenated styrenic diblock copolymer, a free radical initiator and a foaming agent, wherein the hydrogenated styrenic diblock copolymer comprises: a first block comprising a conjugated diene monomer unit; and a second block comprising a styrene unit, wherein the hydrogenated styrenic diblock copolymer comprises 10 to 60 wt % of the styrene unit, 50 mol % or more of the conjugated diene monomer unit is hydrogenated, and the hydrogenated styrenic diblock copolymer has a weight average molecular weight of 30000 to 200000. In addition, a foam obtained by crosslinking and foaming the aforesaid crosslinkable and foamable composition is also provided.