A Novel Approach to Clear Barrier on Packaging Films

Howard Kravitz, CEOTel: 484-367-7015, ext 302

hkravitz88@nanopackinc.com

NanoPack Inc.

•Business Materials science

•Location Wayne, PA

•Founding date 2004

•Commercial late 2008

•Employees 4 + 2*0.5

NanoPack Background

2

Materials Science Company

Singularize particles in a solubilized resin that is printed on flexible films.

Goal: barrier to maintain shelf life

3

Replaces traditional materials

•Standard materials•Polyvinylidene chloride•EVOH co-ex•PVOH•Glassy coatings•SiOx•AlOx

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Packaging Structure

Structural Film

Adhesive

Sealant Film

Ink

Barrier

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Coating Structure

30-40 layers of platelets

0.3µ

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Goal: Good barrier resin gets better with added tortuous path.

Choice of Resin is Important

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Good Barrier Resins

Low* loading of platelets• Barrier improved by orders of

magnitude• Excellent clarity• Destruct bond strengths

* Less than 10% platelet loading

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1 10 100 1000 1000010

100

1000

10000CLAYS: OTR vs. Aspect Ratio

Aspect Ratio

OTR

In

dex

Substrate alone

HectoriteMontmorilonite

Vermiculite

Constant Loading

Choice of Clay is Important

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__

__+++

+ ++

+

Choice of Vermiculite is ImportantSurface Charge is Key to Platelet Singularity

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Choice of Vermiculite is Important

__

_

__

__+++

+ ++

+

Singularity in solution requires proprietary chemistry

= NanoPack IP

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SEM: NanoSeal on Flexible Film

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_

__

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Aroma Barrier

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Another Feature of Vermiculite

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PrintedSide of Film

Film

CoatingTrough

Impression Roll

GravureCylinder

DoctorBlade

Dry barriercoating

Gravureapplication

Coating

film Barrier Film

film

Application of NanoSeal

Drying

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Oxygen Barrier

Better

Good

• PVdC (“saran”)

• EVOH co-ex• PVOH0.3

µ

0.6µ

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Note 1: %RH inside of package @ 0% when external RH is 0%; %RH inside of package @ 50% when external RH is ≥50%.

0% 20% 40% 60% 80% 100%0.1

1

10

NanoSeal on PET, 0.3µ

NanoSeal on BOPP, 0.3µ

EVOH: 10µ co-ex laminated to PET

PVDC, 1µ on PET

% Relative Humidity

OTR

, cc/1

00

in

²/d

ay·a

tm

Oxygen Barrier

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0 10 20 30 40 50 60 70 80 900.01

0.1

1

10

PVOH on BOPP, 2µ

NanoSeal on BOPP, 0.3µ

% Relative Humidty

OTR

, cc/1

00

in²/

day

Note 1: %RH inside of package @ 0% when external RH is 0%; %RH inside of package @ 50% when external RH is ≥50%.

Oxygen Barrier - continued

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Barrier – New Technology

0.001

0.01

0.1

0.1 0.05 0.002

NanoSeal™, 0.3µ Metal @ 25 Optical DensityNanoSeal™ & Metal

OTR

, cc/1

00

in

²Coated PET

NanoSeal™ Metal NanoSeal™ + Metal

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Economics

LowCost

HighCost

• PVOH

• EVOH co-ex (purchased)

• PVdC (“saran”)

• EVOH co-ex (in-house)

Illustrative

NP coated film

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Economics

LowCost

HighCost

• PVOH

• EVOH co-ex (purchased)

• PVdC (“saran”)

• EVOH co-ex (in-house)

Illustrative

PurchaseNanoSeal™ coating

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Environmentally Friendly

• Less material used

• No toxic chlorine

• Biodegradable

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Other Advantages

• Clarity (non-yellowing)• Scratch resistance• Flexibility• Oil resistance• Solvent resistance

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Commercial Status

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New Developments

•PLA•PE

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New Developments – anticipated

•Moisture barrier• Incorporation into adhesives

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Thank you

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