Title:
THERMAL INSULATION SHEET
Document Type and Number:
Japanese Patent JP2022178562
Kind Code:
A
Abstract:
To provide a thermal insulation sheet material which allows a thermal insulation layer thereof to be easily detached due to gradual deterioration thereof caused by outdoor use.SOLUTION: In a thermal insulation sheet 10 where a thermal insulation layer 30 is formed on a surface of a sheet-shaped substrate 20 of polyolefin, with the visible light transmissivity of 27% or more, the thermal insulation layer 30 includes a base resin 31 and a thermal insulation material 32, the base resin includes natural rubber and polylactic acid, the thermal insulation material includes fine particles with the average particle size of 10 μm or less and coarse particles with the average particle size of higher than 10 μm. The fine particles are contained 10 to 20 pts.wt. with respect to the base resin of 100 pts.wt. and the coarse particles are contained 50 to 120 pts.wt. with respect to the base resin of 100 pts.wt., so that the thermal insulation layer 30 can gradually deteriorate and can be easily removed.SELECTED DRAWING: Figure 1
Inventors:
YAMAMOTO YOSHIMASA
Application Number:
JP2021085444A
Publication Date:
December 02, 2022
Filing Date:
May 20, 2021
Export Citation:
Assignee:
SEKISUI JUSHI KK
International Classes:
B32B27/32; A01G9/14; A01G13/02; B32B7/023