Title:
THERMOPLASTIC ELASTOMER COMPOSITION AND MOLDED BODY OF SAME
Document Type and Number:
WIPO Patent Application WO/2024/058181
Kind Code:
A1
Abstract:
Provided is a thermoplastic elastomer composition, etc. that has excellent thermal aging resistance during long-term exposure to a high-temperature environment, excellent hardness and mechanical properties, and excellent extrusion processability. The thermoplastic elastomer composition (I) contains a crosslinked product of an α-olefin-unconjugated polyene copolymer (A) having a weight average molecular weight of 350,000 or more and a phenolic resin crosslinking agent (E), and contains 360 mass parts to 460 mass parts of a crystalline polyolefin (B), 2 to 6 mass parts of a fatty acid lubricant (D), and 80 mass parts or more of a softening agent (C1) per 100 mass parts of the copolymer (A); the ½ crystallization time of the thermoplastic elastomer composition (I) at 120°C is 200 seconds or less, and the maximum spherulite size of the polyolefin component contained in the thermoplastic elastomer composition (I) is in the range of 8 μm or less.
Inventors:
SHIBATA YASUHIRO (JP)
CHIGAMA KAKERU (JP)
YAMAMOTO AKIHIRO (JP)
CHIGAMA KAKERU (JP)
YAMAMOTO AKIHIRO (JP)
Application Number:
PCT/JP2023/033220
Publication Date:
March 21, 2024
Filing Date:
September 12, 2023
Export Citation:
Assignee:
MITSUI CHEMICALS INC (JP)
International Classes:
C08L23/16; B32B27/32; B60J10/16; C08K5/20; C08L23/12; C08L61/06; C08L91/00
Domestic Patent References:
| WO2020189633A1 | 2020-09-24 |
Foreign References:
| JP2000212351A | 2000-08-02 |
Attorney, Agent or Firm:
SSINPAT PATENT FIRM (JP)
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