Expanded particulate material of polyolefin resin

Details Expanded particulate material of polyolefin resin Expanded particulate material of polyolefin resin

C - Chemistry, Metallurgy

08

J

18/639, 403/77,

C08J 9/16 (2006.01) B29C 44/00 (2006.01) C08J 9/228 (2006.01) C08J 9/232 (2006.01) C08L 23/00 (2006.01)

Patent

CA 1108350

Abstract of the disclosure: Expanded particles of a crosslinked polyolefin resin, each particle with uniformly spherical shape, hav- ing an average diameter of 1.4 to 5.5 mm, an average expansion ratio of 18 to 37 and specific compression coefficient of 1.6 x 10-3 to 4.0 x 10-3, are found to be produced by two-step foaming operations. They are useful for various purposes such as filtrating material, fillers in stuffed specimens and, especially for preparation of molded articles having constricted portions, giving excellent moldings having smooth surface without failure at corner or edge portions. - 1 -

309185

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