Title:
METHOD FOR PRODUCING AIR-PERMEABLE ADHESIVE TAPE
Document Type and Number:
Japanese Patent JP3927286
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method for producing an air-permeable adhesive tape which can be directly applied on the porous substrate of a solvent-type adhesive.
SOLUTION: A 3-10 μm layer of low density polyethylene whose density is 0.93 g/cm3 and less is formed on one surface of an air-permeable substrate whose air-permeability as prescribed in JIS P 8117 is 0.01-20 sec/100 ml. And an organic solvent solution of a pressure sensitive adhesive whose solid content is 10-70 weight% is applied on the surface of the polyethylene layer on the substrate so that the applied quantity of the dried organic solvent solution is 5-100 g/m2. After that, the polyethylene layer with the organic solvent solution is heated at a temperature in the range between 130°C and 200°C and dried, and innumerable minute pores are formed on the low density polyethylene layer.
Inventors:
Funabiki Kotaro
Application Number:
JP19687397A
Publication Date:
June 06, 2007
Filing Date:
July 23, 1997
Export Citation:
Assignee:
Sekisui Chemical Co.,Ltd.
International Classes:
A61F13/02; A61L15/58; (IPC1-7): A61L15/58; A61F13/02; A61F13/02
Domestic Patent References:
| JP49097848A | ||||
| JP2296881A | ||||
| JP62106671U |