Title:
POLYPROPYLENE RESIN COMPOSITION AND MOLDED ARTICLES COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2021/049585
Kind Code:
A1
Abstract:
By keeping a polypropylene component having a molecular weight of at least 106.5 to less than 0.05 wt% in a polypropylene resin composition comprising the following components (A) to (D) in prescribed amounts, a propylene resin composition can be provided that contains an impact polypropylene and a high-flow homopolypropylene and that is particularly suitable for use for foam molding. Molded articles containing the propylene resin composition can also be provided. Impact polypropylene (A) having an MFR (230°C, 2.16 kg) of 30-200 g/10 min and containing 5-20 wt% of a propylene-ethylene copolymer having an intrinsic viscosity [η] of 1.5-3.8 dl/g, high-flow homopolypropylene (B) having an MFR (230°C, 2.16 kg) of 200-1,000 g/10 min, ethylenic elastomer (C) having an MFR (190°C, 2.16 kg) of 0.5-40 g/10 min, and inorganic filler (D).
Inventors:
MINOWA AKIRA (JP)
KAWAMURA TATSUJI (JP)
KAWAMURA TATSUJI (JP)
Application Number:
PCT/JP2020/034351
Publication Date:
March 18, 2021
Filing Date:
September 10, 2020
Export Citation:
Assignee:
PRIME POLYMER CO LTD (JP)
International Classes:
C08L23/08; C08J9/04; C08K3/013; C08L23/12; C08L23/14
Domestic Patent References:
| WO2017082358A1 | 2017-05-18 | |||
| WO2010050509A1 | 2010-05-06 |
Foreign References:
| JP2008274265A | 2008-11-13 | |||
| JP2014196398A | 2014-10-16 | |||
| JP2014205760A | 2014-10-30 | |||
| JP2010144133A | 2010-07-01 | |||
| JP2014196398A | 2014-10-16 |
Attorney, Agent or Firm:
ISHIBASHI, Masayuki et al. (JP)
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