Title:
WATERPROOF SHEET
Document Type and Number:
Japanese Patent JP2018028256
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a waterproof sheet that excels in initial tensile breaking elongation and weather resistance and can maintain, therefore, mechanical properties for a long time.SOLUTION: A waterproof sheet has a first layer, and a second layer disposed on the external surface of the first layer. The second layer contains a specific polyvinyl chloride resin, and a thermoplastic elastomer. The polyvinyl chloride resin is a copolymer of an acrylic copolymer and a vinyl chloride monomer, or a copolymer of an acrylic copolymer, a vinyl chloride monomer and a copolymerizable monomer other than the vinyl chloride monomer. The tensile breaking elongation at a test speed of 200 mm/min is 100% or more.SELECTED DRAWING: Figure 1
Inventors:
NAGAKI MARINA
NAGAHASHI SHOICHI
GOTO TAKUMA
NAGAHASHI SHOICHI
GOTO TAKUMA
Application Number:
JP2017151739A
Publication Date:
February 22, 2018
Filing Date:
August 04, 2017
Export Citation:
Assignee:
SEKISUI CHEMICAL CO LTD
International Classes:
E04D5/10; B32B25/08; B32B27/28; B32B27/30
Attorney, Agent or Firm:
Patent business corporation Miya saki, table of contents patent office