Title:
IONOMER CONTAINING METAL OF GROUP 2 OF PERIODIC TABLE
Document Type and Number:
WIPO Patent Application WO/2023/182498
Kind Code:
A1
Abstract:
Provided is an ionomer characterized in that: a copolymer (P) contains structural units (A) derived from ethylene and/or an α-olefin having 3-20 carbon atoms and structural units (B) derived from a monomer having a carboxyl group and/or a dicarboxylic acid anhydride group as essential constituent units and in which the proportion of structural units (B) is 1-20 mol%, and in the copolymer (P), at least some carboxyl groups and/or dicarboxylic acid anhydride groups are converted through neutralization into metal-containing carboxylates containing ions of at least one type of metal selected from among group 2 of the periodic table; (a) the phase angle δ is 50-75° when the absolute value G* of the complex modulus of elasticity measured using a rotational rheometer is 0.1 MPa; and (b) the degree of neutralization is 1-90 mol%. This ionomer achieves an excellent balance between fluidity, impact resistance, and adhesion to highly polar dissimilar materials.
Inventors:
UEMATSU MASAHIRO (JP)
KOTO YUMA (JP)
KOTO YUMA (JP)
Application Number:
PCT/JP2023/011827
Publication Date:
September 28, 2023
Filing Date:
March 24, 2023
Export Citation:
Assignee:
JAPAN POLYETHYLENE CORP (JP)
International Classes:
C08F8/42
Foreign References:
| JP2015195374A | 2015-11-05 | |||
| JP2006103181A | 2006-04-20 | |||
| JP2021533216A | 2021-12-02 | |||
| JP2022515731A | 2022-02-22 | |||
| JP2016079408A | 2016-05-16 | |||
| JP2021007744A | 2021-01-28 |
Attorney, Agent or Firm:
TSUKUNI & ASSOCIATES et al. (JP)
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