To obtain the subject composition capable of producing a molding product having excellent balance of rigidity, impact resistance (especially low- temperature impact resistance) and heat resistance by including a specific propylene block copolymer with an inorganic filler in a prescribed ratio.
This composition is obtained by compounding (A) 20-99 wt.% of a propylene block copolymer which comprises (i) a polymer block composed of a propylene homopolymer or a random copolymer of (a) propylene and (b) ≤10 mol.% of a copolymerizable monomer of ethylene and/or a 4-20C α-olefin and (ii) a polymer block composed of a random copolymer of the component (a) and 10-80 mol.% of the component (b), satisfying the equation nb≤n+1.5 (nb is the average chain length of block of the component (b); (n) is the total average chain length of the component (b)) and has 0.1-200 g/10 minutes melt flow rate with (B) 1-80 wt.% of an inorganic filler (e.g. fine powder talc).
| JPH07292233 | FLAME-RETARDANT RESIN COMPOSITION |
| WO/2023/054414 | COMPOSITE MATERIAL AND PRODUCTION METHOD FOR COMPOSITE MATERIAL |
| JP4254538 | Elastomer molded product |
FUJITA YUJI
SUZUKI TORU
SUGANO TOSHIHIKO
TAYANO TAKAO
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