To provide a joint tape which can prevent the appearance of wrinkles etc. on the surface of a waterproof layer 62, so as to solve the problem that the wrinkles etc. appear because stress is concentrated on the portion of the coating waterproof layer 62 immediately above the edge of a conventional joint tape, when a substrate is displaced by an earthquake etc.
In this joint tape 10 for the waterproof substrate, a polyurethane film 14 is superposed on the upside surface of a long base material (thermocompression-bonded type nonwoven fabric 11); and an adhesive layer 16 is provided on a downside surface. The basis weight of the thermocompression-bonded type nonwoven fabric 11 is in the range of 15-100 g/m2, and the thickness of the polyurethane film is in the range of 20-100 μm. Since the joint tape 10 is soft, the stress generated through the displacement of the substrate 51 is relaxed. When the substrate 51 is greatly displaced, the nonwoven fabric 14 causes a material failure, or the nonwoven fabric 11 and the polyurethane film 14 are separated from each other. Thus, the waterproof layer 62 can bear the stress over the width (C) of the joint tape 10.
YAMAMOTO TOSHIYA
MASUDA NORIHIKO
TOYO BOSEKI
TOYOBO SPECIALTIES TRADING CO
| JP2007125734A | 2007-05-24 | |||
| JPH10227075A | 1998-08-25 | |||
| JP2007113268A | 2007-05-10 | |||
| JPH07144393A | 1995-06-06 | |||
| JPH04189959A | 1992-07-08 | |||
| JP2007125734A | 2007-05-24 | |||
| JPH10227075A | 1998-08-25 |
Tadashi Sugakawa
Osamu Futakuchi
Hiroaki Ito
Hisahiko Ueki