| 摘要 |
An automotive part made of a polypropylene resin composition which comprises (A1) a propylene homopolymer, (B) an elastomer, and (C) an inorganic filler or which comprises (A2) a propylene block copolymer and (C) an inorganic filler and optionally contains (B) an elastomer, wherein the propylene homopolymer (A1) and the propylene homopolymer of the propylene block copolymer (A2) have the following features (i) to (iii). The MFR (230°C) is 20 to 300 g/10 min. The proportion of irregularly positioned propylene monomer units based on 2,1- or 1,3-insertion in all structural propylene units, as determined from a <13>C-NMR spectrum, is 0.2% or lower. The Mw/Mn is 1 to 3. The automotive part can be efficiently produced by injection molding.
|
| 申请人 |
MITSUI CHEMICALS, INC.;KAWAI, KOJI;YAMASHITA, MASAHIRO;TOHI, YASUSHI;ITAKURA, KEITA;SAKAI, IKUNORI;HASHIMOTO, MIKIO;MINODA, TAKESHI;NAITO, MASAMICHI;TAKAOKA, TORU;KAWAHARA, NOBUO;KANEYOSHI, HIROMU |
发明人 |
KAWAI, KOJI;YAMASHITA, MASAHIRO;TOHI, YASUSHI;ITAKURA, KEITA;SAKAI, IKUNORI;HASHIMOTO, MIKIO;MINODA, TAKESHI;NAITO, MASAMICHI;TAKAOKA, TORU;KAWAHARA, NOBUO;KANEYOSHI, HIROMU |
