High stiffness propylene polymer composition

Details High stiffness propylene polymer composition High stiffness propylene polymer composition

C - Chemistry, Metallurgy

08

K

400/3079, 400/94

C08K 5/52 (2006.01) C08F 297/08 (2006.01) C08K 5/527 (2006.01) C08L 53/00 (2006.01)

Patent

CA 1318056

ABSTRACT OF THE DISCLOSURE A high stiffness propylene polymer composition comprising 100 parts by weight of a crystalline propylene homopolymer or crystalline ethylene-propylene block copolymer having a specific molecular weight distribution and a specific isotactic pentad ratio and from 0.01 to 1 part by weight of a phosphate compound represented by formula (I) wherein R1, R2, R3, M and n are as defined in the specification. The composition is excellent in post- processability of a sheet when molded into a sheet, blow moldability, stiffness, and heat distortion resistance.

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