Flexible polyester foams

C - Chemistry – Metallurgy – 08 – J

Patent

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Details

C08J 9/22 (2006.01) B29C 44/34 (2006.01) C08J 9/36 (2006.01) C08L 67/02 (2006.01)

Patent

CA 2255315

A foamed cellular material which can be obtained from foamed aromatic polyester resins with a bulk density of 50 to 700 kg/m3 by heating in vacuum to temperatures which are higher than the Tg of the material and lower than its melting point. The foamed material, generally in the form of a sheet or panel, has high-level characteristics in terms of flexibility and dimensional thermostability depending on the degree of crystallinity after the vacuum treatment

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