Expandable styrene type resin particles and foamed articles...

C - Chemistry – Metallurgy – 08 – F

Patent

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C08F 279/02 (2006.01) B29B 11/06 (2006.01) B65D 81/09 (2006.01) C08J 9/14 (2006.01) C08J 9/18 (2006.01)

Patent

CA 2129180

ABSTRACT OF THE DISCLOSURE A foamed article of styrene type resin, in which base resin particles are styrene type resin particles ob- tainable by a graft polymerization of a cis-rich polybutadi- ene with a styrene type monomer, a blowing agent contains n-pentane as its main component and the foamed article shows a density of 0.015-0.040 g/cm3, an average foam diameter of 60-300 micrometers and a closed cell foam rate of not less than 50%.

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