Biodegradable barrier package materials

Nichigo G-Polymer™ as a Biodegradable Barrier Packaging Material

Fully biodegradable barrier package materials can be designed by using Nichigo G-Polymer™ as an intermediate barrier layer and combining it with biodegradable resins such as polylactic acid (PLA) and polybutylene succinate (PBS) and a biodegradable bonding resin developed by Mitsubishi Chemical.

Nichigo G-Polymer™ is used as an intermediate layer (barrier layer) for biodegradable barrier packaging materials, as shown in the photo below.


Recommended grades when using Nichigo G-Polymer™ as a material for biodegradable gas barrier packaging

The table below lists recommended grades and corresponding products, MFR, and OTR for using Nichigo G-Polymer™ as a material for biodegradable gas barrier packaging. The corresponding product and MFR of biodegradable bonding resins are also listed. All grades are recommended for food package applications.

TypeGrades

MFR 1)
(g/10min)

OTR 2)
(oc 30µm/㎡ day atm)

StandardBVE8049P4.30.4
High MFRAVE8077P300.4
FlexibilityOKS-8074P3.50.5
Biodegradable tie resin

G-Connect™ BTR8002P

≦5

1): 2,160 gf, 210°C
2): 23°C, 65%RH
OKS: product under development

The numbers above are sample values, and are not guaranteed.

Biodegradability of Nichigo G-Polymer™

Nichigo G-Polymer™ BVE8049P, AVE8077P, OKS-8074P, and biodegradable bonding resin G-Connect™ BTR8002P have acquired the EU biodegradability certification of “OK compost” and US biodegradability certification.

 

Oxygen permeability of multilayer containers

The table below lists the oxygen permeability of Nichigo G-Polymer™ when used as a material for multilayer containers.

Layer (µm)OTR(cc/tray day air)23℃,
inner 85%RH, outer 50%RH
PLA/G-Connect™ BTR8002P/
Nichigo G-Polymer™ BVE8049P/
G-Connect™ BTR8002P/PLA93/9/9/9/93
0.001

 

Tailoring our recommendations to suit your specific applications and desired performance, we propose the optimal functional polyvinyl alcohol products for your needs!

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