PURPOSE: To provide a tubular separation membrane comprising a membrane as a starting material constructed to a structure also having the advantage of a hollow fiber shape by a method wherein both end parts of two or more superposed functional polymer separation membranes are sealed and a plurality of linear adhesive seal parts are provided to the inside thereof.
CONSTITUTION: The left and the right both end parts 3, 3' of two functional polymer separation membranes 1, 2 are sealed to form a tubular shape and the inside part thereof is further adhered and sealed by linear adhesive seal parts 4, 4', 4"... to form a structure having plural groups of fine tubular parts fromed thereto. As the result, each one of fine tubular groups exhibit effect equal to that of one hollow fiber. The adhesive seal parts may be formed from arrangement of curved lines or a spot in addition to linear lines. In this case, it can be also performed that each seal parts is formed into a loop shape and a slit is cut into the loop while seal is held so as to be capable of freely communicating an external fluid with the surface and the back of a membrane.
KOJIMA SHIGEZOU
KURIHARA KAZUHIKO
TANI HARUHISA
YAZAWA HIROSHI
| JPS483069A |