Title:
MANDREL, AND METHOD FOR PRODUCING RUBBER HOSE USING SAID MANDREL
Document Type and Number:
WIPO Patent Application WO/2023/074232
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a mandrel that is flexible while maintaining heat resistance, releasability, and recyclability capable of tolerating a thermal history of repeated use, which are characteristics of 4-methyl-1-pentene polymers. The present invention relates to a mandrel formed from a resin composition (X) containing 50-90 parts by mass of a 4-methyl-1-pentene polymer (A) that satisfies specific requirements, 5-40 parts by mass of a propylene polymer (B), and 5-30 parts by mass of a 4-methyl-1-pentene/α-olefin copolymer (C) that satisfies specific requirements (where the total of (A), (B), and (C) is 100 parts by mass).
Inventors:
YASUI MOTOYASU (JP)
UEKUSA TAKAYUKI (JP)
FUKAGAWA YOSHISADA (JP)
UEKUSA TAKAYUKI (JP)
FUKAGAWA YOSHISADA (JP)
Application Number:
PCT/JP2022/036094
Publication Date:
May 04, 2023
Filing Date:
September 28, 2022
Export Citation:
Assignee:
MITSUI CHEMICALS INC (JP)
International Classes:
B29C33/40; B29C33/76; B29C48/34; C08L23/14; C08L23/20; F16L11/04
Domestic Patent References:
| WO2011055803A1 | 2011-05-12 |
Foreign References:
| JP2018145350A | 2018-09-20 | |||
| JP2019093551A | 2019-06-20 |
Attorney, Agent or Firm:
SSINPAT PATENT FIRM (JP)
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