MOISTURE PERMEABLE WATERPROOF CIVIL ENGINEERING SHEET AND ITS MANUFACTURING METHOD

PROBLEM TO BE SOLVED: To provide a moisture permeable waterproof civil engineering sheet capable of permitting the sufficient permeation of air while suppressing the penetration of rainwater into the ground, and its manufacturing method. SOLUTION: This moisture permeable waterproof civil engineering...

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Bibliographic Details
Main Authors HONNA HIROSHI, KANO HIKARI, ONO FUMIYOSHI, TAKANAKA MICHIHITO, UCHIKAWA TETSUSHIGE
Format Patent
LanguageEnglish
Published 07.10.2004
Edition7
Subjects
LAYERED PRODUCTS
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
PERFORMING OPERATIONS
TRANSPORTING
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Summary:PROBLEM TO BE SOLVED: To provide a moisture permeable waterproof civil engineering sheet capable of permitting the sufficient permeation of air while suppressing the penetration of rainwater into the ground, and its manufacturing method. SOLUTION: This moisture permeable waterproof civil engineering sheet is manufactured by laminating a nonwoven fabric comprising thermoplastic fibers and a polymeric compound having a low melting point and thermally fusion-bonding them integrally. The civil engineering sheet has a coefficient of water permeation of about 1.5×10-2cm/s or below, an air permeability of about 0.25 cc/cm2/s or above and moisture permeable waterproof properties. COPYRIGHT: (C)2005,JPO&NCIPI
Bibliography:Application Number: JP20030068700