JP2020075989A5 - - Google Patents

Claims (8)

It contains a thermoplastic resin and tungsten oxide-based photothermally convertible particles and heat-retaining particles dispersed in the thermoplastic resin, and the content of the photothermally convertible particles is 0.01 % by mass or more and 0.50% by mass. %, And the content of the heat-retaining particles is 0.01 to 70% by mass or less. The photothermally convertible resin composition according to claim 1, wherein the photothermally convertible particles are selected from the following:
General formula (1): M _x W _{y Oz} {In the formula, M is H, He, alkali metal element, alkaline earth metal element, rare earth element, Mg, Zr, Cr, Mn, Fe, Ru, Co, Rh, Ir, Ni, Pd, Pt, Cu, Ag, Au, Zn, Cd, Al, Ga, In, Tl, Si, Ge, Sn, Pb, Sb, B, F, P, S, Se, Br, One or more elements selected from the group consisting of Te, Ti, Nb, V, Mo, Ta, Re, Be, Hf, Os, Bi, and I, where W is tungsten and O is oxygen. , X, y and z are positive numbers, respectively, and are represented by 0 <x / y ≦ 1 and 2.2 ≦ z / y ≦ 3.0}. Or general formula (2): W _y O _z {In the formula, W is tungsten, O is oxygen, y and z are positive numbers, respectively, and 2.45 ≦ z / y ≦ 2.999. A tungsten oxide particle having a magnetic phase represented by}. The photothermally convertible resin composition according to claim 1 or 2, wherein the dispersed particle size of the volume average of the photothermally convertible particles is 1 nm or more and 800 nm or less. The photothermal conversion resin composition according to any one of claims 1 to 3, wherein the heat-retaining particles are inorganic oxide particles. The photothermal conversion resin composition according to any one of claims 1 to 4, wherein the average primary particle size of the heat-retaining particles is 10 nm or more and 5 μm or less. The thermoplastic resin is a polyolefin resin, a polystyrene resin, a polyester resin, an acrylic resin, a polyamide resin, a polyvinyl alcohol resin, a polyurethane resin, a polycarbonate resin, a polysulfone resin, derivatives thereof, and a mixture thereof. The photothermally convertible resin composition according to any one of claims 1 to 5, which is selected from the group consisting of. A photothermal conversion film containing the photothermal conversion resin composition according to any one of claims 1 to 6. A photothermally convertible fiber comprising the photothermally convertible resin composition according to any one of claims 1 to 6.