C - Chemistry – Metallurgy – 08 – J
Patent
C - Chemistry, Metallurgy
08
J
C08J 5/18 (2006.01) B65D 65/02 (2006.01) C08L 25/06 (2006.01) C08L 25/10 (2006.01)
Patent
CA 2255380
A film consisting essentially of polystyrene and styrene-butadiene copolymer. The film has a haze of less than about 15 % when haze is measured with a sample of the film being 15 mil thick by ASTM D1003-92 and has a ductility greater than about 1 in-lbs as measured by the Gardner impact test (ASTM D5420-93) at room temperature with a sample of film being 15 mil thick. The film is biaxially oriented and comprises from about 60 to about 94 wt.% polystyrene and from about 6 to about 40 wt.% styrene-butadiene copolymer of the total weight of the film. The styrene-butadiene copolymer has a butadiene content of from about 10 to 50 wt.% of the styrene-butadiene copolymer. The film may be formed into a container for transporting food.
Menawat Arun S.
Okamoto Kelvin T.
Marks & Clerk
Tenneco Packaging Inc.
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