摘要:
PROBLEM TO BE SOLVED: To provide a retardation film with a reverse wavelength dispersion property made of polycarbonate.SOLUTION: A transparent film made of a polycarbonate resin composition has a ratio of the retardation R450 measured at the wavelength of 450 nm to the retardation R550 measured at the wavelength of 550 nm satisfying the following expression: 0.5
摘要:
PROBLEM TO BE SOLVED: To provide a method for producing a foam molded part having high heat resistance.SOLUTION: A method for producing a foam molded part includes the steps of: (i) preparing polymer foam granules; (ii) mixing the polymer foam granules with an adhesive composition; (iii) adding a heat transfer medium to the mixture obtained in step (ii) to obtain the foam molded part.
摘要:
PROBLEM TO BE SOLVED: To provide a method of manufacturing a composite thermoplastic resin particle of a cylindrical shape containing an olefinic resin and a styrenic resin, which can be manufacture in a mold a composite thermoplastic resin foamed particle molding in which porosity is high, and which is excellent in adhesiveness between foamed particles and strength; and to provide a foaming composite thermoplastic resin particle, a composite thermoplastic resin foamed particle, and a composite thermoplastic resin foamed particle molding.SOLUTION: An olefinic resin seed particle 1 of a specific cylindrical shape is dispersed in an aqueous medium to obtain a seed particle dispersion. Subsequently, a styrene monomer is impregnated into the olefinic resin seed particle 1, and the polystyrene monomer is heated within a specific temperature range under the presence of a polymerization initiator and is polymerized to obtain the composite thermoplastic resin particle of a cylindrical shape. Moreover, the foaming composite thermoplastic resin particle formed by impregnating the foaming agent into the composite thermoplastic resin particle, the composite thermoplastic resin foamed particle formed by foaming the same, and the composite thermoplastic resin foamed particle molding formed by fabricating the same are disclosed.