Title:
積層体、積層体の製造方法、積層体の施工方法及びコンクリート片のはく落防止工法
Document Type and Number:
Japanese Patent JP7007228
Kind Code:
B2
Abstract:
To provide a laminate excellent in adhesion of a fiber sheet in the laminate, and having excellent adhesiveness to a concrete structure even when overlapped and adhered.SOLUTION: There is provided a laminate by laminating at least an A layer, a B layer, a C layer and a D layer in this order. The A layer contains a resin component A containing 50 mass% or more of a polyvinylidene fluoride resin. The B layer contains a resin component B containing 50 mass% or more of a poly(meth)acrylic acid ester resin. The C layer consists of an acrylic adhesive composition, storage elastic modulus of an adhesive composition (G') obtained in a viscoelasticity measurement under a condition of temperature of 25°C and frequency of 1.0 Hz is 5.0×10to 1.0×10Pa, loss tangent of the adhesive composition (tanδ) obtained in the viscoelasticity measurement under a condition of temperature of 100°C and frequency of 1.0 Hz is 0.8 or less. The D layer consists of a fiber sheet, and coating area ratio of the C layer to the B layer is 10 to 90%.SELECTED DRAWING: Figure 1
Inventors:
Masayuki Oishi
Tomohiro Yamashita
Keiji Takano
Tomohiro Yamashita
Keiji Takano
Application Number:
JP2018074978A
Publication Date:
January 24, 2022
Filing Date:
April 09, 2018
Export Citation:
Assignee:
Denka Co., Ltd.
International Classes:
B32B27/12; B32B27/30; B32B37/12; E04G23/02
Domestic Patent References:
| JP2016125193A | ||||
| JP2017089193A | ||||
| JP50056772U | ||||
| JP2008119832A | ||||
| JP2014015582A | ||||
| JP2018053601A | ||||
| JP2016203517A | ||||
| JP2004027718A | ||||
| JP2016124105A |
Attorney, Agent or Firm:
Yoshiki Hasegawa
Yoshinori Shimizu
Takeshi Nakatsuka
Toshimasa Takabe
Yoshinori Shimizu
Takeshi Nakatsuka
Toshimasa Takabe