摘要:
A camshaft for internal combustion engines, the camshaft having a double-pipe shaft portion comprising an outer pipe, an inner pipe, and an intermediate layer therebetween. The intermediate layer is composed of a layer of a thermoplastic liquid crystalline polyester resin that has been injected into a gap between the outer pipe and the inner pipe, by an injection molding machine. The camshaft is lightweight and has excellent vibration-damping properties, and further, has a structure allowing an easy manufacture thereof, and thus is suitable for mass production.
摘要:
A polybutylene terephthalate resin having 30 eq/t or less of carboxyl end group, a crystallization temperature in a temperature decrease of 175° C. or higher and an amount of residual tetrahydrofuran of 300 ppm by weight or less; and compositions and molded articles comprising the resin and glass fiber, antioxidants and mold-releasing agents is provided. The polybutylene terephthalate resin can be molded in a short molding cycle, exhibits excellent resistance to hydrolysis and mold-releasing property, causes no corrosion of metals and generates little gas during molding. The compositions and the molded articles exhibit improved impact resistance, stability under heating and oxidation and mold-releasing property and can be advantageously used for members in electric and electronic products and in automobiles.
摘要:
Fibers or films with high mechanical strengths are produced from novolacs which are obtained by reaction of resols with phenols under neutral or acidic conditions.
摘要:
Disclosed is an antibacterial laminate having at least either of antibacterial property and antifungal property. The antibacterial laminate is composed of at least a base layer (4) comprising a polymer film or paper, an antibacterial layer (2) on which a metal having at least either of antibacterial property and antifungal property is deposited, and a coating layer (1) for covering the antibacterial layer (2). This antibacterial laminate is characterized in that the antibacterial layer (2) is formed between the base layer (4) and the coating layer (1), and the coating layer (1) is composed of a substantially nonporous polymer coating film.
摘要:
Disclosed is a recycled resin composition having physical properties, a feeding property as well as a moldability which are by no means inferior as compared with the raw material resin composition, even when a ratio of recycled material in recycled resin composition used as molding material is increased. A recycled resin composition obtained by compounding a mixture containing (a) a raw material resin, (b) at least one kind of additives for resin, and (c) a pulverized material of a recovered molded article generated at the time of molding of a raw material resin composition comprising (a) said raw material resin and (b) said at least one kind of additives for resin and/or a recycled resin composition comprising (a) said raw material resin and (b) said at least one kind of additives for resin, is provided.