エチレン−ビニルアルコール系共重合体ペレット、樹脂組成物および多層構造体

Title:

エチレン−ビニルアルコール系共重合体ペレット、樹脂組成物および多層構造体

Document Type and Number:

Japanese Patent JP6973084

Kind Code:

B2

Abstract:

Ethylene-vinyl alcohol copolymer pellets comprise an ethylene-vinyl alcohol copolymer and water, and have a water content of not higher than 0.5 wt.%, wherein the ratio (Y/Z) of a lactone ring content (Y) to the sum (Z) of a carboxylic acid content (X) and the lactone ring content (Y) in terminal structures of the ethylene-vinyl alcohol copolymer is not less than 60 mol %. The pellets are excellent in high-temperature thermal decomposition-suppressing effect and thermal stability, and are free from odor emanation and coloration even if being processed at a higher temperature.

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Inventors:

Kota Inoue
Hashimoto Hoka
Nobuaki Sato

Application Number:

JP2017562386A

Publication Date:

November 24, 2021

Filing Date:

November 29, 2017

Export Citation:

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Assignee:

Mitsubishi Chemical Corporation

International Classes:

C08J3/12; B32B27/28; C08F216/06; C08L29/04

Domestic Patent References:

JP200280606A
JP2001163921A
JP2001164070A
JP2000309607A

Foreign References:

WO2017047559A1
WO2004092234A1
WO2013005807A1
WO2011125736A1

Attorney, Agent or Firm:

Masahiko Nishito
Iisaki Aika
Yuko Saito

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