A method for producing an air-permeable adhesive tape.,申请号EP19900308901-传众专利搜索

A method for producing an air-permeable adhesive tape.

申请公布号：EP0437916(B1)

申请号：EP19900308901

申请日期：1990.08.13

申请公布日期：1993.12.22

申请人：

SEKISUI KAGAKU KOGYO KABUSHIKI KAISHA

发明人：TSUBOTA, KENJI;HANATANI, NOBUO

分类号：A61F13/00;A61F13/02;A61L15/58;C09J7/02

主分类号：A61F13/00

摘要：A method for producing an air-permeable adhesive tape comprising a substrate and a porous adhesive layer formed on said substrate is provided. The method comprises the steps of: forming a layer of a solution on a substrate, said solution containing an adhesive material in an organic solvent; applying water drops on said layer of said solution while said organic solvent remains in said layer, thereby allowing water drops to sink into said layer, the diameter of said water drops being in the range of 10 to 1000 mu m, and the total amount of said water drops applied onto the surface of said layer being 5 to 200 g/m<2>; evaporating said organic solvent contained in said layer of the solution, thereby forming an adhesive layer that contains said water drops; and evaporating said water from said adhesive layer, thereby forming communicating pores extending from the external surface to the inner surface of said adhesive layer. <IMAGE>