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1. (WO2018164161) PROPYLENE-BASED POLYMER, AND ELASTIC BODY

Pub. No.:    WO/2018/164161    International Application No.:    PCT/JP2018/008686
Publication Date: Fri Sep 14 01:59:59 CEST 2018 International Filing Date: Thu Mar 08 00:59:59 CET 2018
IPC: C08F 10/06
C08F 4/6592
Applicants: IDEMITSU KOSAN CO.,LTD.
出光興産株式会社
Inventors: FUJII, Nozomu
藤井 望
TAKEBE, Tomoaki
武部 智明
KANAMARU, Masami
金丸 正実
OKAMOTO, Takuji
岡本 卓治
Title: PROPYLENE-BASED POLYMER, AND ELASTIC BODY
Abstract:
Provided is a propylene-based polymer which satisfies (1)-(4) below: (1) the intrinsic viscosity [η] measured at 135˚C in a tetralin solvent is 0.3-5.0 dL/g; (2) the melting endotherm (ΔH-D), which is obtained from a melting endotherm curve acquired using a differential scanning calorimeter (DSC) as a result of holding a sample at -10˚C for 5 minutes in a nitrogen atmosphere, and subsequently increasing the temperature by 10˚C/min, is 3-30 J/g; (3) at least one melting point (Tm-D), of which the peak top is defined as the maximum point of the melting endotherm curve acquired using the DSC as a result of holding the sample at -10˚C for 5 minutes in the nitrogen atmosphere, and subsequently raising the temperature by 10˚C/min, is present in the range 20-65˚C; and (4) the melting endotherm (ΔH-D) in the range of 20-65˚C in the melting endotherm curve acquired using the DSC as a result of holding the sample at -10˚C for 5 minutes in the nitrogen atmosphere, and subsequently raising the temperature by 10˚C/minute, is at least 30% of the melting endotherm (ΔH-D) in (2).