Disclosed are a polyamide resin composition and a molded article manufactured using the same. The molded article may have excellent mechanical strength, deformation resistance and light resistance, and may be suitable for use without coating. The polyamide resin composition includes a polyamide resin, an auxiliary resin (e.g., an acrylonitrile-butadiene-styrene copolymer), a filler (e.g., glass fibers and glass beads), and a compatibilizer (e.g., copolymer including maleimide).

A high-purity barium titanate powder according to the present invention has a Cl.sup.− concentration of 20 ppm or less, an electric conductivity of extracted water of 70 μS/cm or less, and an average particle diameter of 1 μm to 30 μm.

A nanostructure is provided that in one embodiment includes a cluster of cylindrical bodies. Each of the cylindrical bodies in the cluster are substantially aligned with one another so that their lengths are substantially parallel. The composition of the cylindrical bodies include tungsten (W) and sulfur (S), and each of the cylindrical bodies has a geometry with at least one dimension that is in the nanoscale. Each cluster of cylindrical bodies may have a width dimension ranging from 0.2 microns to 5.0 microns, and a length greater than 5.0 microns. In some embodiments, the cylindrical bodies are composed of tungsten disulfide (WS.sub.2). In another embodiment the nanolog is a particle comprised of external concentric disulfide layers which encloses internal disulfide folds and regions of oxide. Proportions between disulfide and oxide can be tailored by thermal treatment and/or extent of initial synthesis reaction.

The present invention refers to a tyre for bicycle wheels comprising a tread band containing an anti-puncture system capable of having high resistance to the penetration of foreign bodies, simultaneously ensuring optimal handling performances. In particular the present invention regards a tyre for bicycle wheels comprising: a carcass structure; and—a tread band arranged in radially outer position with respect to the carcass structure; wherein said tread band is made by means of vulcanisation of a cross-linkable elastomeric composition comprising a reinforcement system constituted by modified silicate fibres of nanometric size and fibrillated polymer fibres of micrometric size.

A rubber composition based on at least an elastomer matrix, a carbon black, a silica, a silane coupling agent and short fibers, wherein the amount in phr of the silica is higher than that of the carbon black, wherein the amount of the silane coupling agent is more than 0.0% and less than 5.0% by weight per 100% by weight of the silica, wherein the amount of the short fibers is more than 0.0 phr and less than 5.0 phr and wherein the number-average length of the short fibers is less than 10 mm.

Provided is a glass-fiber-reinforced resin plate excellent in dimensional stability, strength, surface smoothness, and productivity even if having a thickness of 0.5 mm or less. The present invention is a glass-fiber-reinforced resin plate having a thickness of 0.5 mm or less, comprising glass fiber that has a flat cross-sectional shape with a minor axis D.sub.s in the range of 4.5 to 12.0 .Math.m and a major axis D.sub.L in the range of 20.0 to 50.0 .Math.m, and an amorphous thermoplastic resin, wherein the number average fiber length L of the glass fiber is in the range of 50 to 400 .Math.m, the glass fiber content C is in the range of 25.0 to 55.0% by mass, and the D.sub.s, D.sub.L, L, and C satisfy the following formula (1): 0.32 ≤ 1000 × D.sub.s × D.sub.L.sup.3 × (C/100).sup.4/L.sup.3 ≤ 1.22 ...(1).

A glass filler of the present invention includes: a glass substrate; and a coating film including a surface treatment agent, the coating film covering at least a portion of a surface of the glass substrate. The glass substrate is a glass fiber having a flat cross-sectional shape. For the glass substrate, when a length corresponding to a minor axis of the flat cross-section of the glass fiber is represented by L1, a length corresponding to a major axis of the flat cross-section of the glass fiber is represented by L2, and a length corresponding to a fiber length of the glass fiber is represented by L3, a ratio of an average of L2 to an average of L1, (average of L2)/(average of L1), is 1.5 or more and 8 or less, the average of L1 is 1.0 μm or more and 10 μm or less, an average of L3 is 3 μm or more and less than 80 μm, and an average of L3 is larger than the average of L2. The surface treatment agent includes a silane coupling agent. A proportion of the coating film in the glass filler is 0.05 mass % or more and 2.5 mass % or less.

A conductive textile includes a base cloth and a conductive film disposed on the base cloth. The conductive film includes a polyurethane resin and a silver bearing conductor, in which a content of the silver bearing conductor is 55 parts by weight to 80 parts by weight, and a content of the polyurethane resin is 8 parts by weight to 12 parts by weight.

A flame-retardant polymer composition comprising a polymer, a flame retardant, a high aspect ratio particulate mineral and optionally a reinforcing material, articles made from and comprising said flame-retardant polymer composition and methods of making said flame-retardant polymer composition.

Disclosed is a reinforced polypropylene material, comprising in parts by weight: a, 10-90 parts of polypropylene resin, b, 0.5-25 parts of compatilizer, c, 5-60 parts of reinforced fibers and d, 0.1-20 parts of low-hardness toner. The reinforced fibers comprise a component I, a component II and a component III, where the component I is composed of reinforced fibers with a length of 0.1-0.6 mm and accounts for 35-50% of number of reinforced fibers, the component II is composed of reinforced fibers with a length of 0.7-1.3 mm and accounts for 35-45% of number of reinforced fibers, and component III is composed of reinforced fibers with a length of 1.4-2.0 mm and accounts for 5-20% of number of reinforced fibers. The present invention, by adjusting the length and the content distribution of the reinforced fibers in the reinforced polypropylene material formula, greatly preserves the maintained length of the reinforced fibers in the reinforced polypropylene material, and by combining a specific amount of low hardness toner and a specific amount of compatilizer, the low-temperature resilience and the long-term weatherability performance of the resulting reinforced polypropylene material are significantly improved.