Patent ID: 6551437
Filing Date: 2003-04-22
Classification: B32B,B60R,C09J,F16J,Y10S,Y10T

Abstract:
A method for producing a sealing tape, comprising:preparing a sealing-tape material, said sealing-tape material containing an unvulcanized rubber-base material and its vulcanization accelerator; forming said sealing-tape material into a substantially square-shaped sheet while keeping its unvulcanized condition; applying an adhesive sheet to a bottom of said substantially square-shaped sheet, said adhesive sheet being coated with an adhesive; and cutting said substantially square-shaped sheet into at least one of said sealing tapes each of which assumes an elongated shape having a bottom surface and a predetermined thickness measured in a direction perpendicular to said bottom surface of said sealing tape, wherein said substantially square-shaped sheet is moved while having its upper surface brought into press-contact with a roll cutter provided with at least a pair of circular blades axially spaced apart from each other through an annular concave portion formed in a peripheral portion of said roll cutter.