Title:
ポリエステル樹脂層を備える積層体およびそれを備える包装製品
Document Type and Number:
Japanese Patent JP7108982
Kind Code:
B2
Abstract:
To provide a laminate having a polyester resin layer comprising a polyester derived form conventional fossil fuel and a laminate having a polyester resin layer comprising a biomass polyester which is not inferior in physical properties such as mechanical characteristics.SOLUTION: There is provided a laminate having at least a paper base material layer, a polyester resin layer and a thermoplastic resin layer in this order, wherein the polyester resin layer contains a biomass polyester containing ethylene glycol derived from biomass as a diol unit and dicarboxylic acid derived from fossil fuel as a dicarboxylic acid unit and the biomass degree in the polyester resin layer is 5% or more.SELECTED DRAWING: Figure 1
Inventors:
Atsuhiko Takeda
Katsuhiro Sozono
Takeya Nozawa
Katsuhiro Sozono
Takeya Nozawa
Application Number:
JP2021042672A
Publication Date:
July 29, 2022
Filing Date:
March 16, 2021
Export Citation:
Assignee:
Dai Nippon Printing Co.,Ltd.
International Classes:
B65D3/22; B32B27/00; B32B27/10; B32B27/32
Domestic Patent References:
| JP2015036208A | ||||
| JP2015205719A | ||||
| JP2015101057A | ||||
| JP2012096411A | ||||
| JP2014133338A |
Attorney, Agent or Firm:
Nakamura Yukitaka
Miyajima Manabu
Asano Mari
Yuta Kanazawa
Miyajima Manabu
Asano Mari
Yuta Kanazawa