Title:
WEATHER-RESISTANT WATERPROOF SHEET AND WATERPROOFING METHOD
Document Type and Number:
Japanese Patent JP2003313992
Kind Code:
A
Abstract:
To develop a waterproof sheet which is excellent in weather resistance and rarely degraded even under exposure of sunlight over a long period of time.
The sheet 1 formed of a polymeric material has a light-reflective thin layer 3 arranged therein. The sheet 1 also has a layer 6 formed of inorganic impalpable powder, arranged on at least one of front and rear surfaces of the thin layer 3.
Inventors:
OKAWA YOSHIMICHI
Application Number:
JP2002118638A
Publication Date:
November 06, 2003
Filing Date:
April 22, 2002
Export Citation:
Assignee:
OKAWA YOSHIMICHI
International Classes:
E04B1/92; B32B5/16; B32B7/02; E04D5/10; (IPC1-7): E04D5/10; B32B5/16; B32B7/02; E04B1/92
Attorney, Agent or Firm:
Yoshihiro Morimoto