Gas-permeable, waterproof nonwoven fabric and process for its production

摘要

PCT No. PCT JP87/00889 Sec. 371 Date Jul. 28, 1988 Sec. 102(e) Date Jul. 28, 1988 PCT Filed Nov. 17, 1987 PCT Pub. No. WO88/03870 PCT Pub. Date Jun. 2, 1988.A porous waterproof nonwoven fabric having a superior gas-permeability and waterproofness, capable of being produced at cheap cost under simple processing conditions and by means of simple processing equipments, having superior mechanical strengths and a good feeling and useful for disposable uses and a process for producing the fabric are provided, which fabric comprises a thermoplastic resin composition film comprising a thermoplastic resin and a specified quantity of a filler, the thermoplastic resin composition film having fine pores formed by calender processing.