C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 23/10 (2006.01) B29C 45/00 (2006.01) C08J 9/32 (2006.01) C08K 7/22 (2006.01) C08K 7/24 (2006.01) C08L 23/26 (2006.01) C08L 53/00 (2006.01)
Patent
CA 2089462
ABSTRACT OF THE DISCLOSURE A process for producing a molded product of propylene resin which comprises melting and kneading at least a part of the following component (a), adding to the resulting melt the following component (b) or the component (b) and the remainder of the component (a) and kneading the resulting mixture to prepare a resin composition having a melt flow rate of 1 to 100 g/10 min, and then molding the resin composition into a molded product in which the breakage rate of the component (b) is 30% by weight or less: (a) 100 parts by weight of a crystalline propylene polymer having a melt flow rate of 1 to 300 g/10 min and (b) 3 to 80 parts by weight of a filler in the form of hollow particles having a mean particle density (true density) of 0.1 to 0.9 g/cm3, as measured according to ASTM-D2840, a mean particle diameter of 7 to 100 µm and a 10%-by-weight breakage pressure resistance of 100 kg/cm2 or more, as measured according to ASTM-D3102.
Hamaura Masahide
Imamura Itsushi
Sobajima Yoshihiro
Macrae & Co.
Mitsubishi Chemical Corporation
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