Abstract: A method of producing a microproduct comprises: providing a resin composition including 30 to 90 wt % of a polypropylene-based resin and 10 to 70 wt % of a hydrogenated derivative of a block copolymer shown by “X-Y” (X represents a polymer block immiscible with the polypropylene-based resin, Y represents an elastomeric polymer block of a conjugated diene that's miscible with the polypropylene-based resin after hydrogenation); attaching a silicon stamper to a mold cavity of an injection molding machine, the silicon stamper having micromachined features formed by etching the surface of a silicon plate; and precisely transferring the micromachined features of the silicon stamper to the resin composition by injecting the resin composition into the mold cavity, a resulting molded surface having recesses and/or protrusions that are 0.3 to 200 ?m deep or tall and 0.3 to 100 ?m wide.

Abstract: A bonded structure formed by bonding a first structure and a second structure at opposed bonding surfaces to form a microstructure or the like. At least one of the first structure and the second structure is formed of a resin composition including a polypropylene resin and a hydrogenated derivative of a block copolymer of the following general formula X-Y (X is a polymer block immiscible with the polypropylene resin, and Y is a conjugated diene elastomer polymer block). The bonding surfaces are bonded by heating an alkoxysilane or alkylsilane compound or a mixture prepared by adding a hydrogenated derivative of a block copolymer of the general formula X-Y to an alkoxysilane or alkylsilane compound applied to the bonding surface.

Abstract: A method of producing a microproduct comprises: providing a resin composition including 30 to 90 wt % of a polypropylene-based resin and 10 to 70 wt % of a hydrogenated derivative of a block copolymer shown by “X-Y” (X represents a polymer block immiscible with the polypropylene-based resin, Y represents an elastomeric polymer block of a conjugated diene that's miscible with the polypropylene-based resin after hydrogenation); attaching a silicon stamper to a mold cavity of an injection molding machine, the silicon stamper having micromachined features formed by etching the surface of a silicon plate; and precisely transferring the micromachined features of the silicon stamper to the resin composition by injecting the resin composition into the mold cavity, a resulting molded surface having recesses and/or protrusions that are 0.3 to 200 ?m deep or tall and 0.3 to 100 ?m wide.

Abstract: A bonded structure formed by bonding a first structure and a second structure at opposed bonding surfaces to form a microstructure or the like. At least one of the first structure and the second structure is formed of a resin composition including a polypropylene resin and a hydrogenated derivative of a block copolymer of the following general formula X-Y (X is a polymer block immiscible with the polypropylene resin, and Y is a conjugated diene elastomer polymer block). The bonding surfaces are bonded by heating an alkoxysilane or alkylsilane compound or a mixture prepared by adding a hydrogenated derivative of a block copolymer of the general formula X-Y to an alkoxysilane or alkylsilane compound applied to the bonding surface.

Abstract: A bonded structure formed by bonding a first structure and a second structure at opposed bonding surfaces to form a microstructure or the like. At least one of the first structure and the second structure is formed of a resin composition including a polypropylene resin and a hydrogenated derivative of a block copolymer of the following general formula X-Y (X is a polymer block immiscible with the polypropylene resin, and Y is a conjugated diene elastomer polymer block). The bonding surfaces are bonded by heating an alkoxysilane or alkylsilane compound or a mixture prepared by adding a hydrogenated derivative of a block copolymer of the general formula X-Y to an alkoxysilane or alkylsilane compound applied to the bonding surface.

Abstract: A bonded structure formed by bonding a first structure and a second structure at opposed bonding surfaces to form a microstructure or the like. At least one of the first structure and the second structure is formed of a resin composition including a polypropylene resin and a hydrogenated derivative of a block copolymer of the following general formula X-Y (X is a polymer block immiscible with the polypropylene resin, and Y is a conjugated diene elastomer polymer block). The bonding surfaces are bonded by heating an alkoxysilane or alkylsilane compound or a mixture prepared by adding a hydrogenated derivative of a block copolymer of the general formula X-Y to an alkoxysilane or alkylsilane compound applied to the bonding surface.

Abstract: A microproduct includes a resin composition including a polypropylene-based resin and a hydrogenated derivative of a block copolymer shown by the general formula “X-Y”. The microproduct has micromachined features of a stamper precisely transferred by injection molding and a molded surface has a plurality of recesses and/or protrusions. In this case, X represents a polymer block immiscible with the polypropylene-based resin, and Y represents an elastomeric polymer block of a conjugated diene.