B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
B32B 5/22 (2006.01) B32B 5/26 (2006.01) B32B 27/32 (2006.01) D04H 13/00 (2006.01) E04D 5/10 (2006.01) E04D 12/00 (2006.01) E04B 1/62 (2006.01)
Patent
CA 2353157
The laminated sheet of the present invention comprises (A) a nonwoven fabric having a basis weight of 30 g/m2 or less made of polyolefin-based ultra- fine fibers of 5 µm or less in average fiber diameter; (B) a heat-bonding nonwoven fabric having a basis weight of 15 g/m2 or less made of thermoplastic elastomer ultra-fine fibers of 15 µm or less in average fiber diameter; and (C) a spun-bonded nonwoven fabric having a basis weight of 30 g/m2 or more made of thermoplastic polymer fibers. The nonwoven fabric A and the spun-bonded nonwoven fabric C are face-bonded via the heat-bonding nonwoven fabric B. The laminated sheet is excellent and well-balanced in a wind breaking performance, a water vapor permeability and a waterproof performance. The laminated sheet is also excellent mechanical properties and durability. With these excellent properties, the laminated sheet is suitably used as house wrap materials and roof underlay sheets.
Araida Yasurou
Hatta Nobuo
Tadokoro Masami
Chori Co. Ltd.
Kuraray Co. Ltd.
Smart & Biggar
LandOfFree
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