Foam and process for producing same

Details Foam and process for producing same Foam and process for producing same

C - Chemistry, Metallurgy

08

J

18/661, 403/77

C08J 9/14 (2006.01) C08J 9/00 (2006.01)

Patent

CA 1205950

ABSTRACT OF THE DISCLOSURE A novel foam composed of closed cells having an average cell diameter of 0.05 - 3 mm, said foam having a foam density of 0.007 - 0.10 g/cm3, a variation in cell wall thickness of ?30% or less and a variation factor of cell diameter of 70% or less can be produced by foaming a composition consisting essentially of 100 parts by weight of substantially non-crosslinked ethylenic polymer having a density of 0.935 g/cm3 or more and a melting point of 117°C or more and 0.05 - 10 parts by weight of a foaming decelerant having an ability to prolong the foaming time by at least one second as compared with the case of absence of the foaming decele- rant as measured by a glass tube blowing test method. Said foam is excellent in mechanical properties and heat-resistance and has a good appearance.

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