WATER PROOFING MEMBRANE, AND A METHOD FOR MAKING A WATER PROOFING MEMBRANE

• Main Authors: VIDAL, FLORENCE, MADEC, YVES, BADER, SEVERINE, DUJEANCOURT, FRANCK
• Format: Patent
• Language: English; French
• Published: 20.07.2021
• Subjects: BUILDING; FIXED CONSTRUCTIONS; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR; GUTTERS; LAUNDERING; 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; TEXTILES; TRANSPORTING; TREATMENT OF TEXTILES OR THE LIKE; WALL, FLOOR OR LIKE COVERING MATERIALS, e.g. LINOLEUM,OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF AFIBROUS WEB COATED WITH A LAYER OF MACROMOLECULARMATERIAL

The invention relates to a waterproofing membrane (1) comprising a structure in- corporating a fibre layer (10) and carrying a bituminous mass (15) on one side, the other side carrying a layer (20) of a first substance comprising between 10% and 40% by dry weight of an acrylic polymer mixed with between 4% and 40%, preferably between 20% and 40%, by dry weight of titanium dioxide and at least 1% by dry weight of a transparent or translucent hydrophobic material, said layer (20) defining a surface (S) of said membrane (1). (fig. a) 10 L'invention porte sur une membrane de protection vis-à-vis de l'eau (1), laquelle membrane comprend une structure incorporant une couche de fibres (10) et portant une masse bitumineuse (15) sur un côté, l'autre côté portant une couche (20) en une première substance comprenant entre 10 % et 40 % en poids sec d'un polymère acrylique mélangé à entre 4 % et 40 %, de préférence entre 20 % et 40 %, en poids sec, de dioxyde de titane et au moins 1 % en poids sec d'un matériau hydrophobe transparent ou translucide, ladite couche (20) définissant une surface (S) de ladite membrane (1) (figure a).