Wallpaper

U.S. Patent Number: 5316840

Abstract: 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/cm.sup.3, and a maximum melting peak temperature of 100.degree. C. or higher and a heat of fusion at 100.degree. 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.

Inventors: Kubo; Kouji (Chiba, JP), Kobayashi; Shigeichi (Chiba, JP)

Assignee: Sumitomo Chemical Company, Limited (Osaka, JP)

Application Number: 07/907,621

Issued: 1994-05-31

Expired: 2006-05-31

Classes: 428/318.4 ; 428/513; 428/537.5; 428/904.4

Field of search: 428/211,314,326,318.4,513,537.5

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