Sealing membrane, and its manufacture

Details Sealing membrane, and its manufacture Sealing membrane, and its manufacture

B - Operations, Transporting

32

B

117/177

B32B 11/10 (2006.01) D04H 3/14 (2006.01) D06N 3/00 (2006.01) D06N 5/00 (2006.01)

Patent

CA 1216198

PRECIS DE LA DIVULGATION: L'invention concerne une membrane d'étanchéité constituée d'une armature bitumée non-tissée de filaments continus thermoliés contenant: de 70 à 90% de polytéré- phtalate d'éthylène glycol et, de 30 à 10% de polytéré- phtalate de butylène glycol. Les filaments sont bilames, concentriques ou côte à côte. La membrane est constituée de filaments en chacun des deux types de polymères. L'invention concerne également un procédé pour sa fabrica- tion par thermoliaison. Ces membranes sont notamment utiles dans la bâtiment (toiture, terrasse, plancher et toute application d'étanchéité).

453705

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