C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 23/08 (2006.01) B29C 67/02 (2006.01) C08L 23/10 (2006.01) C08L 23/16 (2006.01)
Patent
CA 2064978
A thermoplastic elastomer powder composition for powder molding, comprising 100 parts by weight of the following thermoplastic elastomer powder (A) and 0.05 to 20 parts by weight of a fine powder having an average particle diameter of 30 µm or less: (A) (i) a powder of a thermoplastic elastomer comprising a composition composed of an ethylene-.alpha.-olefin copolymer rubber and a polyolefin resin or (ii) a powder of a thermoplastic elastomer comprising a partially crosslinked composition composed of an ethylene-.alpha.-olefin copolymer rubber and a polyolefin resin, the thermoplastic elastomer powder having a complex dynamic viscosity ~*(1), as measured at a frequency of 1 radian/sec and at 250°C, of 1.5 x 10 5 poise or less and a Newtonian viscosity index ~, calculated from the following formula by using the above-mentioned complex dynamic viscosity ~*(1) and the complex dynamic viscosity ~*(100) measured at a frequency of 100 radian/sec of 0.67 or less: n = (log~*(1) - log~*(100))/2.
Hikasa Tadashi
Igarashi Toshio
Mendori Hiroaki
Shinohara Sueharu
Tatsumi Masayuki
Bull Housser & Tupper Llp
Sumitomo Chemical Co. Ltd.
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