B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
B32B 27/10 (2006.01) C08K 3/22 (2006.01) D21H 19/22 (2006.01) D21H 19/58 (2006.01) D21H 21/34 (2006.01) D21H 27/20 (2006.01)
Patent
CA 2073079
ABSTRACT OF THE DISCLOSURE Wallpaper comprising flame retardant paper having laminated thereon an expanded sheet is disclosed, in which the expanded sheet is obtained by expanding at an expansion ratio of 1.5 or more a resin composition containing (A) 100 parts by weight of an ethylene-.alpha.-olefin copolymer having a melt flow rate of from 0.2 to 50 g/10 min, a density of not more than 0.91 g/cm3, and a maximum melting peak temperature of 100°C or higher and a heat of fusion at 100°C or higher of 10 J/g or more as measured with a differential scanning calorimeter and (B) 60 parts by weight or more of magnesium hydroxide or a mixture of magnesium hydroxide and aluminum hydroxide at a weight ratio of from 100/0 to 20/80. The wallpaper has high safety, is free from bleeding of a plasticizer, gives off no offensive odor, and satisfies the requirements of 2nd class (semi-noncombustible) of fireproof wall coverings. - 18 -
Kobayashi Shigeichi
Kubo Kouji
Riches Mckenzie & Herbert Llp
Sumitomo Chemical Co. Ltd.
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