Provided is a polyamide resin composition which is used for a foam molded body and has high appearance performance, high load resistance, and high impact resistance. This polyamide resin composition for foam molding contains: 40 to 70 parts by mass of a crystalline polyamide resin (A); 5 to 15 parts by mass of a non-crystalline polyamide resin (B); 15 to 50 parts by mass of an inorganic reinforcing material (C); 0.1 to 10 parts by mass of an elastomer (D); and 0.5 to 15 parts by mass of a copolymer (E) having a functional group that reacts with a terminal group of the polyamide resin. The total amount of the crystalline polyamide resin (A), the non-crystalline polyamide resin (B), the inorganic reinforcing material (C), the elastomer (D), and the copolymer (E) having a functional group that reacts with a terminal group of the polyamide resin is 100 parts by mass.

A coated substrate that comprises a polyolefin substrate having a functional polymer layer disposed thereon. The polyolefin substrate has a flow through pore structure with a pore size ranging from about 5 microns to about 250 microns. The functional polymer layer has a thickness ranging from about 1 micron to about 20 microns and a layer pore structure having a pore size ranging from about 1 nm to about 100 nm.

A polymeric material for use in thermal insulation is provided. The polymeric material is formed from a thermoplastic composition containing a continuous phase that includes a matrix polymer and within which a microinclusion additive and nanoinclusion additive are dispersed in the form of discrete domains. A porous network is defined in the material that includes a plurality of nanopores having an average cross-sectional dimension of about 800 nanometers or less. The polymeric material exhibits a thermal conductivity of about 0.20 watts per meter-kelvin or less.

The invention relates to an extrusion process for the production of expandable vinyl aromatic polymer granulate comprising mixing first and second additives with first and second polymer components, respectively, in dedicated mixers.

Provided are multilayer elastomer compositions such as multilayer films which possess the ability to self-repair upon puncturing. The multilayer elastomer compositions may be prepared from, for example, styrenic block copolymers and find use in the manufacture of thin walled articles, for example gloves, particularly medical or industrial gloves.

A polyimide precursor solution contains a polyimide precursor, resin particles having a core and a coating resin layer, the coating resin layer contains a melamine resin, and a solvent.

The invention relates to multi-layer thermoplastic composites, and in particular composites having fluoropolymer in the outer layer and a thermoplastic substrate layer. The fluoropolymer outer layer may either be a layer comprising a majority, and preferably 100 percent fluoropolymer, or may be a blend of a thermoplastic matrix with fluoropolymer at a level of from 5 to 60 weight percent, based on the total weight of all polymers. Especially useful thermoplastic matrices include acrylic polymers, and styrenic polymers, especially styrenic copolymers such as acrylonitrile/styrene/acrylate (ASA), acrylonitrile/butadiene/styrene (ABS) and styrene/acrylonitrile (SAN). While the fluoropolymer may be any fluoropolymer, thermoplastic fluoropolymers, such as polymers and copolymers of polyvinylidene fluoride are especially useful. The improved flame retardant composite of the invention is especially useful in cap layers over plastic substrates, such as for flame-retardant plastic decking, railings, posts, fencing, siding, roofing, and window profiles.

Disclosed is a method for inducing orderly arrangement by means of polymer crystallization, and the use thereof in preparing a composite film. Firstly, monodisperse PS-DVB nano-microspheres of different sizes are prepared by means of soap-free emulsion polymerization; the PS-DVB nano-microspheres prepared above are used as raw material, and PEG aqueous solutions with different concentrations are added to induce an orderly arrangement of the nano-microspheres by means of solution-state PEG crystallization; and characterized by using scanning electron microscopy and polarizing microscopy. The method is simple in terms of operation and is widely applicable. By further modifying the orderly arrangement of the nano-microspheres, the composite material can be applied to different fields. The replacement of a substrate for crystalline polymer which inducing the orderly arrangement of the nano-microspheres enables the nano-composite material to become a thin film material or a bulk material modified and reinforced by the nano-microspheres.

Disclosed is a molded body and a method for producing the same. The molded body includes: a continuous phase containing first and second polyolefin resins; and a dispersed phase containing a polyamide resin and a modified elastomer and composed of a melt-kneaded product of the polyamide resin and the modified elastomer, the modified elastomer has a reactive group that reacts with the polyamide resin, the elastomer is an olefin-based thermoplastic elastomer having, as a skeleton, a copolymer of ethylene or propylene and an α-olefin having 3-8 carbon atoms or a styrene-based thermoplastic elastomer having a styrene skeleton, when a total of the continuous and dispersed phases is taken as 100% by mass, the dispersed phase is 70% by mass or less, and when a total of the first and second polyolefin resins is taken as 100% by mass, the second polyolefin resin is 80% by mass or less.

Disclosed herein are, for instance, coated substrates comprising cellulose-based substrates with surface-treated aqueous-based polymer coatings. In some embodiments, the aqueous-based polymer coatings are surface-treated using corona treatment. Methods of making and using the same are also disclosed.