Title:
THERMOPLASTIC ELASTOMER COMPOSITION AND MOLDED ARTICLE COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2023/013772
Kind Code:
A1
Abstract:
A thermoplastic elastomer composition that contains (A) 100 parts by mass of a polypropylene resin, (B) 40–80 parts by mass of an ethylene/α-olefin copolymer that includes ethylene units and C3–20 α-olefin units, (C) 80–200 parts by mass of a hydrogenated block copolymer that is a hydrogenate of a block copolymer that has at least one each of a block (c1) that is mainly conjugated diene monomer units and a block (c2) that is mainly vinyl aromatic monomer units, (D) 100–250 parts by mass of a softener that is no more than 29% a component (R) that has a relative molecular weight in terms of polystyrene of no more than 600 as measured by gel permeation chromatography (GPC), and (E) 5–20 parts by mass of a polyorganosiloxane. At least a portion of the thermoplastic elastomer composition is cross-linked.
Inventors:
SAEKI RYOHEI (JP)
NAKATSUJI RYO (JP)
JITSUKATA MASAKAZU (JP)
NAKATSUJI RYO (JP)
JITSUKATA MASAKAZU (JP)
Application Number:
PCT/JP2022/030141
Publication Date:
February 09, 2023
Filing Date:
August 05, 2022
Export Citation:
Assignee:
MITSUI CHEMICALS INC (JP)
International Classes:
C08L15/00; C08J5/18; C08L9/06; C08L23/08; C08L23/12; C08L53/02; C08L83/04; C08L91/00
Domestic Patent References:
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| WO2010067564A1 | 2010-06-17 | |||
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Other References:
I. M. KOLTHOFF ET AL., J. POLYM. SCI., vol. 1, 1946, pages 429
Attorney, Agent or Firm:
SSINPAT PATENT FIRM (JP)
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