Abstract: A flame-retardant metal-resin composite material in which metal layers are respectively stacked on both surfaces of a core material layer containing a resin, wherein: the core material layer contains a metal hydroxide and a resin, the core material layer has a combustion calorific value of 2.0 MJ/kg or less, and the metal-resin composite material has a surface material peel strength of 2.4 N/mm or more. Preferably, the resin contained in the core material layer has a tensile strength of 30 MPa or more.

Abstract: In a nonwoven fiber assembly which comprises a fiber comprising a thermal adhesive fiber under moisture and in which the fiber are entangled with each other, the fibers are bonded at contacting points of the fibers by melting the thermal adhesive fiber under moisture to distribute the bonded points approximately uniformly, thereby obtaining a buffer substrate. The buffer substrate may further comprises a conjugated fiber comprising a plurality of resins which are different in thermal shrinkage and form a phase separation structure, and the conjugated fibers may have an approximately uniform crimps having an average curvature radius of 20 to 200 ?m and are entangled with the fibers constituting the nonwoven fiber assembly.

Abstract: The solar cell module having a configuration in which a solar cell is formed on the metal-resin composite substrate, and exhibiting excellent durability. The solar cell module 10 includes a metal-resin composite substrate 16 consisting of a resin layer 16A having a melting point of not less than 125° C. sandwiched between metal layers 16B; a lower encapsulation layer 15 and/or an adhesion layer 15B arranged on the metal-resin composite substrate 16; and a power generation element 13 including a power generation layer sandwiched between a couple of electrodes, and arranged on the lower encapsulation layer 16 or the adhesion layer 15B.

Abstract: In a nonwoven fiber assembly which comprises a fiber comprising a thermal adhesive fiber under moisture and in which the fiber are entangled with each other, the fibers are bonded at contacting points of the fibers by melting the thermal adhesive fiber under moisture to distribute the bonded points approximately uniformly, thereby obtaining a buffer substrate. The buffer substrate may further comprises a conjugated fiber comprising a plurality of resins which are different in thermal shrinkage and form a phase separation structure, and the conjugated fibers may have an approximately uniform crimps having an average curvature radius of 20 to 200 ?m and are entangled with the fibers constituting the nonwoven fiber assembly.