An electroconductive film including a resin layer and an electroconductive layer, wherein the resin layer has a storage elastic modulus at 25° C. of more than 10 MPa and less than 1,000 MPa, and the electroconductive layer has a surface resistance value of 1,000 Ω/sq. or less.

An erasable laminate for marking is disclosed. The laminate comprises a substrate with a marking surface, allowing a user to provide markings on the marking surface using the marking material. The marking surface comprises an outer layer containing a sulfonated block copolymer having an ion exchange capacity (IEC) of >0.5 meq/g. At least 50% of the markings can be erased from the marking surface with a wipe moist with a cleaning fluid (e.g., water, isopropyl alcohol, etc.) after wiping for less than 5 min. The laminate with erasable and reusable marking surface can be used for obtaining writing instruments, e.g., notebooks, artist easels, sketches, etc.

A composition is disclosed comprising a sulfonated styrenic block copolymer (SSBC) having an ion exchange capacity (IEC) of at least 0.5 meq/g; and at least one compound which reacts with the SSBC forming a cross-linked SSBC. The compound is selected from: (i) a cross-linking agent, (ii) a metal cation, and (iii) a non-sulfonated polymer. A film prepared from the composition containing the cross-linked SSBC has a toughness in wet state measured after 1 week of 1.2 to 8 MJ/m.sup.3; and a tensile stress in wet state measured after 1 week of 3.2 to 8 MPa, according to ASTM D412. The film can be used as a water 10 purification membrane or an antimicrobial protection layer.

A resin composition includes 50 parts by weight of a vinyl-containing polyphenylene ether resin, 1 part by weight to 30 parts by weight of a styrene-butadiene-styrene block copolymer and 0.5 part by weight to 30 parts by weight of a zinc molybdate-covered silica, wherein the zinc molybdate-covered silica has a mass ratio of zinc molybdate to silica of between 1:9 and 2:8. The resin composition may be used to make various articles, such as a prepreg, a resin film, a laminate or a printed circuit board, and at least one of the following properties can be improved, including gel time stability, copper foil peeling strength, difference rate of dissipation factor and conductive anodic filament test.

Compositions are provided including an uncrosslinked thermoplastic nitrogen-containing matrix material and composite particles distributed in the matrix material. The composite particles each include a chemical blowing agent particle encapsulated within a shell including an uncrosslinked thermoplastic material. The uncrosslinked thermoplastic material exhibits at least a certain minimum complex viscosity at a decomposition temperature of the chemical blowing agent particle. Also described are foam compositions and particles including the foam compositions, such as a sheet or multilayer construction. Composite particles are further provided. Methods of making the foam compositions are additionally described herein. Also, polishing pads, polishing systems, and methods of polishing a substrate are provided.

Embodiments of the present disclosure generally relate to reinforcement and filler materials in various compositions, and more specifically to coal-derived materials as reinforcement and filler materials. In an embodiment, a composition includes a coal-derived component and an elastomer component. The coal-derived component can be coal powder and/or coal char. The coal-derived component can be thermally-treated (e.g., pyrolyzed), solvent-extracted to produce an extract or residual carbon, and/or chemically modified prior to incorporation in the composition.

A block copolymer composition containing at least one type of block copolymer component obtained by using a vinyl aromatic hydrocarbon and a conjugated diene, wherein the block copolymer composition satisfies the conditions (1) to (3) indicated below. (1) The weight-average molecular weight is at least 100000 and at most 300000, and the conjugated diene content is at least 18 mass % and at most 35 mass %. (2) The vinyl aromatic hydrocarbon block percentage is at least 80% and at most 100% relative to the total amount of the vinyl aromatic hydrocarbon. (3) At least 30 mass % and at most 60 mass % of block copolymer components having a conjugated diene content of at least 30 mass % are included.

Gel compositions for filling cables, such as communication cables, in particular gel compositions containing microspheres, cables containing said gels, and methods of preparing such gels.

The present invention relates to a method including a rubber-like film-based article of which at least a portion is firmly fixed to a substrate. The method includes providing a film-based article made of a non-crosslinked thermoplastic rubber, contacting at least a portion of the film-based article with a substrate so as to form a contact area between the film-based article and the substrate, and heat sealing at least a portion of the contact area at a temperature of 190 to 250° C. for at least 1 second.

Methods of making blended, isoporous, asymmetric (graded) films (e.g. ultrafiltration membranes) comprising two or more chemically distinct block copolymers and blended, isoporous, asymmetric (graded) films (e.g. ultrafiltration membranes) comprising two or more chemically distinct block copolymers. The generation of blended membranes by mixing two chemically distinct block copolymers in the casting solution demonstrates a pathway to advanced asymmetric block copolymer derived films, which can be used as ultrafiltration membranes, in which different pore surface chemistries and associated functionalities can be integrated into a single membrane via standard membrane fabrication, i.e. without requiring laborious post-fabrication modification steps. The block copolymers may be diblock, triblock and/or multiblock mixes and some block copolymers in the mix may be functionally modified. Triblock copolymers comprising a reactive group (e.g., sulfhydryl group) terminated block and films comprising the triblock copolymers.