Title:
VINYL CHLORIDE-BASED WATERPROOF SHEET
Document Type and Number:
Japanese Patent JP2017043063
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a vinyl chloride-based waterproof sheet having further excellent durability and excellent low temperature workability.SOLUTION: There is provided a vinyl chloride-based waterproof sheet which comprises a surface layer (A) and a base layer (B). The surface layer (A) contains an ultraviolet-ray shielding agent in a (meth)acrylic resin which is a main component. Further, the surface layer (A) has an ultraviolet ray transmittance at a wavelength of 280 nm or more and 400 nm or less of 0.01% or less, a tensile modulus at normal temperatures of 0.1 MPa or more and 500 MPa or less and a bending elastic modulus at -20°C of 1 MPa or more and 500 MPa or less. The base layer (B) may contain a liquid plasticizer in the vinyl chloride-based resin which is a main component and the content of the liquid plasticizer is 25 wt.% or less. That is, the base layer (B) may contain no liquid plasticizer and may contain 0 wt.% or more and 25 wt.% or less of the liquid plasticizer. Further, the base layer (B) has a tensile modulus at normal temperatures of 0.1 MPa or more and 500 MPa or less and a bending elastic modulus at -20°C of 1 MPa or more and 500 MPa or less.SELECTED DRAWING: None
Inventors:
MATSUNARI YASUHIRO
KUBO YOSHIHIRO
GOTO TAKUMA
KUBO YOSHIHIRO
GOTO TAKUMA
Application Number:
JP2015169322A
Publication Date:
March 02, 2017
Filing Date:
August 28, 2015
Export Citation:
Assignee:
SEKISUI CHEMICAL CO LTD
International Classes:
B32B27/30; B32B27/18; B32B27/22; C08K7/14; C08L27/06; C08L51/06; E04D5/10
Domestic Patent References:
| JP2001061356A | 2001-03-13 | |||
| JPH11221878A | 1999-08-17 | |||
| JPS61115949A | 1986-06-03 | |||
| JP2000119475A | 2000-04-25 | |||
| JP2000234005A | 2000-08-29 | |||
| JP2002127319A | 2002-05-08 |
Attorney, Agent or Firm:
Patent Business Corporation Claire Patent Office