Title:
CYCLIC OLEFIN-BASED POLYMER FOR FIBER, AND FIBER
Document Type and Number:
Japanese Patent JP2022190330
Kind Code:
A
Abstract:
To provide a cyclic olefin-based polymer for a fiber, in which deterioration is suppressed, and fibers can be continuously spun.SOLUTION: A cyclic olefin-based polymer for fibers of the present invention satisfies the following conditions: a ratio of complex viscosity when a shear is continuously applied at 260°C, a frequency of 1 Hz, and in the atmosphere is 1≤η*2/η*1≤5, in which η*1 is a complex viscosity (Pa sec) immediately after a shear is applied, and η*2 is a complex viscosity (Pa sec) after 3600 sec from application of a shear.SELECTED DRAWING: None
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Inventors:
NAKAJIMA MAMI
FUJIMURA FUTOSHI
FUJIMURA FUTOSHI
Application Number:
JP2021098604A
Publication Date:
December 26, 2022
Filing Date:
June 14, 2021
Export Citation:
Assignee:
MITSUI CHEMICALS INC
International Classes:
D01F6/04; C08F232/00; D01F6/46
Attorney, Agent or Firm:
Shinji Hayami