公开(公告)号：JPS61244373A

公开(公告)日：1986-10-30

申请号：JP8449485

申请日：1985-04-22

Applicant: BRIDGESTONE CORP

Inventor： OYACHI TOMIO ,  ENDO MASAAKI ,  IINO TAKAHIRO ,  OHASHI TAKASHI

IPC: A61N1/06

公开(公告)号：JPH0218037A

公开(公告)日：1990-01-22

申请号：JP16772688

申请日：1988-07-07

Applicant: BRIDGESTONE CORP

Inventor： DOBASHI MASASHI ,  HORI KAZUNAO ,  ENDO MASAAKI

IPC: B32B5/18 ,  B32B11/04 ,  B32B25/08

Abstract: PURPOSE:To improve the property of water stopping by putting into a close- contact with the attaching part of a water stopping region or the like by forming a layer consisting of a rubber and asphalt on a polyurethane foam sheet. CONSTITUTION:Formed is two layers consisting of rubber and asphalt on at least one surface of a polyurethane foam sheet, preferably, a polyurethane foam sheet 1 impregnated with an asphalt. In the case wherein the sheet is for example adhered to the water stopping surface, the density is excellent, and even in the case wherein the urethane foam sheet is used in the condition of being pressed weakly, the occurrence of water leakage never happens from the boundary of urethane foam sheet and the water stopping surface. And, since it is adhered easily to the attaching surface by the adhesive strength, the workability is good, and it may be suitably employed for a water stopping material, sound insulating material and the like.