Title:
POLYPROPYLENE-BASED RESIN COMPOSITION FOR AUTOMOBILE INTERIOR PART, METHOD FOR PRODUCING THE SAME AND MOLDING FOR AUTOMOBILE INTERIOR PART
Document Type and Number:
Japanese Patent JP2021176923
Kind Code:
A
Abstract:
To provide a polypropylene-based resin composition for an automobile interior part which affords an injection molding that is excellent in scratch resistance and reduced in poor appearance, and is excellent in balance in mechanical properties such as rigidity, low temperature impact resistance and tensile characteristics, a method for producing the same, and a molding for an automobile interior part.SOLUTION: A polypropylene-based resin composition contains a polypropylene-based resin (component A) containing a continuous phase composed of a propylene polymer and a rubber phase composed of an ethylene-propylene copolymer, a propylene homopolymer (component B), an ethylene-α-olefin copolymer (component C), and as necessary, an inorganic filler (component D). A content ratio of the component A is 60-90 mass%, a content ratio of the component B is 10-20 mass%, a content ratio of the component C is 5-15 mass%, a content ratio of the component D is 0-2 mass%, an MFR is more than 50 to 80 g/10 min, and the propylene polymer and the ethylene-propylene copolymer of the component A satisfy predetermined physical properties.SELECTED DRAWING: None
Inventors:
BEPPU TAKAYUKI
Application Number:
JP2020081923A
Publication Date:
November 11, 2021
Filing Date:
May 07, 2020
Export Citation:
Assignee:
SUNALLOMER LTD
International Classes:
C08L51/06; C08F2/44; C08F4/654; C08F255/02; C08K3/013; C08L23/08; C08L23/12
Attorney, Agent or Firm:
Sumio Tanai
Shiro Suzuki
Yuichiro Kawagoe
Shiro Suzuki
Yuichiro Kawagoe
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