| abstract |
To provide: a fiber having excellent adhesiveness, which is able to be bonded to a polar resin, a resin containing an inorganic filler (especially a glass fiber), a ceramic, glass, a metal or the like, without being subjected to a primer treatment or the like; and a nonwoven fabric. A fiber which is formed of a thermoplastic polymer composition that contains (A) a block copolymer which has (a1) at least one polymer block containing a aromatic vinyl compound unit and (a2) at least one polymer block containing a conjugated diene compound unit, (B) a polyvinyl acetal resin and (C) a compatibilizer, said thermoplastic polymer composition containing 5-100 parts by mass of the compatibilizer (C) per 100 parts by mass of the block copolymer (A). |