WATERPROOF SHEET

PROBLEM TO BE SOLVED: To provide a waterproof sheet which prevents water leakage through staple-nail holes formed by a staple etc. used for fixation. SOLUTION: In this waterproof sheet, at least a synthetic resin film or an asphalt waterproof material 1 and a water sealing sheet 2 are sequentially s...

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Bibliographische Detailangaben
Hauptverfasser:	TAKAMATSU MASAHIKO, KINDEI HIDENORI, MIYAIE NOBORU
Format:	Patent
Sprache:	eng
Schlagworte:	BUILDING FIXED CONSTRUCTIONS GUTTERS LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM PERFORMING OPERATIONS ROOF COVERINGS ROOF-WORKING TOOLS SKY-LIGHTS TRANSPORTING
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a waterproof sheet which prevents water leakage through staple-nail holes formed by a staple etc. used for fixation. SOLUTION: In this waterproof sheet, at least a synthetic resin film or an asphalt waterproof material 1 and a water sealing sheet 2 are sequentially superposed. In the water sealing sheet 2, a fiber sheet with a mass per unit area of 12-40 g/m2is impregnated with a solution containing a 50-70 pts.wt. high water-absorption resin based on a 10 pts.wt. urethane resin, and dried; and the 6 g/m2or more high water-absorption resin is homogeneously fixed to voids among fibers of the fiber sheet. COPYRIGHT: (C)2011,JPO&INPIT