Compostable Gas Barrier Film with Nichigo G-Polymer™

  • In low humidity conditions, Nichigo G-Polymer™ has the highest gas barrier performance of any thermoplastic resin.
  • In order to prevent loss of gas barrier performance in high humidity conditions, application of multiple layers is effective.
  • COMPOSTABLE AND HIGH GAS BARRIER FILM; Fully biodegradable barrier package material can be made by combination of biodegradable resin such as Poly Lactic Acid(PLA) and Poly Butylene Succinate (PBS), biodegradable adhesion resin (BTR8002P: produced by Mitsubishi Chemical) and Nichigo G-Polymer™ as an intermediate barrier layer.

Recommended Grades

Melting Point*1
190 deg C

Tg*1
71 deg C

MFR*2
4.0 g/10min

OTR*3
0.4 cc * 30 um / m2*day*atm

Extrusion Method
T-Die Cast/Blown

Note
Standard type, Pellet form

Melting Point*1
185 deg C

Tg*1
71 deg C

MFR*2
3.0 g/10min

OTR*3
0.4 cc * 30 um / m2*day*atm

Extrusion Method
T-Die Cast/Blown

Note
Flexibility type, Pellet form

Melting Point*1
180 deg C

Tg*1
71 deg C

MFR*2
2.0 g/10min

OTR*3
1.2 cc * 30 um / m2*day*atm

Extrusion Method
T-Die Cast/Blown

Note
High flexibility type, Pellet form

Melting Point*1
120 deg C

MFR*2
< 5.0 g/10min

Extrusion Method
T-Die Cast/Blown

Note
Biodegradable tie resin, Pellet form

The numbers above are sample values, not guaranteed values.

*1: Measured with DSC, both heating and cooling speeds of 10 deg C/min
*2: Measured with Melt Indexer (210 deg C, 2160g)
*3: Measured at 23 deg C / 65%RH

Oxygen permeability

Fully biodegradable film made by Nichigo G-Polymer™ shows excellent gas barrier performance.

Nichigo G-Polymer™ BVE8049P

Layer (um) OTR (cc / tray day air) 23°C, inner 85%RH, outer 50%RH
PLA/BTR8002P/Nichigo G-Polymer™/BTR8002P/PLA 93 / 9 / 9 / 9 / 93 0.001

Nichigo G-Polymer™ exhibits excellent barrier performance in low humidity conditions.

Nichigo G-Polymer™ BVE8049P
Sample: multilayer film PP/tie/Nichigo G-Polymer™ (or EVOH)/tie/PP
Measurement conditions: 23 degree C

Film layer structure examples

[Co-extruded multilayer film (Fully biodegradable)]
PLA/tie(BTR8002P)/Nichigo G-Polymer™/tie(BTR8002P)/PLA
PBS/tie(BTR8002P)/Nichigo G-Polymer™/tie(BTR8002P)/PBS

[Co-extruded multilayer film]
PE/tie/Nichigo G-Polymer™/tie/PE
PP/tie/Nichigo G-Polymer™/tie/PP
Ny/tie/Nichigo G-Polymer™/tie/sealant

[Extrusion coated film]
O-PET/Nichigo G-Polymer™/tie/PE

[Paper coating]
Paper/Nichigo G-Polymer™/tie/PE
(When collected, the Nichigo G-Polymer™ layer is melted, and the paper and PE layers are easily detached)
Paper/PE/tie/Nichigo G-Polymer™/tie/PE

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