積層体、包装材料、包装袋およびスタンドパウチ

Title:

積層体、包装材料、包装袋およびスタンドパウチ

Document Type and Number:

Japanese Patent JP7392276

Kind Code:

B2

Abstract:

To provide a laminate that enables production of a packaging material which has sufficient strength and heat resistance, and is excellent in recyclability and resistance to content physical properties.SOLUTION: A laminate 10 includes a base material 11, an adhesive layer 12 and a heat seal layer 13, in which both the base material and the heat seal layer are polyethylene (PE) or polypropylene (PP), the base material is subjected to stretching and/or electron beam irradiation treatment, the adhesive layer contains a PE polymer containing 0.01 mass% or more and 5 mass% or less of a component derived from an unsaturated carboxylic acid/or its anhydride (A) when both the base material and the heat seal layer contain PE, and contains a PP polymer containing 0.01 mass% or more and 5 mass% or less of a component derived from an unsaturated carboxylic acid/or its anhydride (B) when both of the base material and the heat seal layer contain PP, and the base material and/or the heat seal layer contains PE or PP derived from biomass as PE or PP.SELECTED DRAWING: Figure 1

Inventors:

Saito Fumihiko
Kenichi Yamada

Application Number:

JP2019062548A

Publication Date:

December 06, 2023

Filing Date:

March 28, 2019

Export Citation:

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Assignee:

Dai Nippon Printing Co.,Ltd.

International Classes:

B32B27/32; B32B27/00; B65D30/16; B65D65/40

Domestic Patent References:

JP2017030751A
JP2016028133A
JP2014144570A
JP2014188677A
JP2003136653A
JP2018520908A
JP2015163688A
JP2018052120A
JP2017179380A

Foreign References:

US6716499
CN104059579A

Attorney, Agent or Firm:

Hiroyuki Nagai
Yukitaka Nakamura
Satoru Asakura
Mari Asano
Takaaki Suemori

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