Enhancing Polyolefin Films for Retort Applications Using Cyclic Olefin Copolymers

Polyolefin Film Enhancement Using
Cyclic Olefin Copolymers
For Retort Applications
Paul D. Tatarka

SPE Polyolefins & FlexPack Conference
February 25-27, 2008

SPE Polyolefins & FlexPackCon www.topas.com

Project Objectives
Desired Enhancements for Commercial Retort Films
TOPAS COC Value Proposition
COC Test Film Structures:
▶ Monolayer Cast Films (4)
▶ Multilayer Blown FIlms (2)
▶ Multilayer Cast Films with PP Skin Layers (5)
Retort Pouch Preparation
Understand How COC Responds Under Retort Conditions
▶ Appearance, Burst Strength, Gelbo Flex and Barrier
▶ Identify Most Promising COC Film Structures
Conclusions and Recommendations for Future Study


Desired Enhancements for Retort
Extend Product Shelf Life From 3 To 5 Years
Eliminate Foil To Offer Package Clarity
Increase Barrier:
▶OTR
▶MVTR
Increase Retort Temperature & Reduce Cycle Time
Enhance Package Durability To Prevent Loss of Barrier
Increase Package Stiffness For Pouches & Rigid Containers

Commercial Retort (4.58 mil)

PET / adh / Foil / adh / Nylon / adh / cast PP

0.48 mil 0.50 mil 0.60 mil 3.00 mil


What Are Cyclic Olefin Copolymers (COC)?

The cyclic olefin copolymer (COC) molecule is a
linear chain of small CH2-CH2 links randomly
interspersed with large bridged ring elements
It cannot fold up to make a regular structure, i.e., a
crystallite

NB NB NB NB

COC has no crystalline melting point, but only a
glass transition temperature, Tg , at which the
polymer goes from “glassy” to “rubbery” behavior


TOPAS® COC - Basic Properties

Glass transition temperatures, °C(°F) Glass Clear, Transparent
70 - 180 (154 – 356)
Sterilizable via Steam, EtO,
Modulus of elasticity, N/mm2 (kpsi) gamma, beta (E-beam)
2300 – 3200 (330 – 460)
Resistant to Alcohols,
Tensile strength, N/mm2 (kpsi) Acids, Bases, Polar
63 (9.1) Solvents

Density, g/cm3
High Purity, Low
1.02 Extractables

Water uptake, %
Low Water Transmission
< 0.01 Rate
(WVTR)
WVTR, g-mil/100 in2 × day (38°C/90%RH)

0.24 – 0.40 Biocompatible

Halogen-free

TOPAS® COC – Value Proposition in Retort

Moisture & Oxygen Barrier - 1.5X to 5X barrier of polyolefins

Add Heat Resistance - High Tg grades available (138 -

180ºC)

Enhance Stiffness - >2X modulus other polyolefins;

enhances dimensional stability

Polyolefin Compatible - Improve performance of PE & PP

components in retort

Transparency - Could offer good package clarity


Test Structures: TOPAS Blends I
ID T1: 70/30 TOPAS 6013 / LLDPE T7: 5-Layer 6013 / LLDPE & 6013 / HDPE Blends
T8: 5-Layer 6013 / LLDPE & 6013 / HDPE Blends
Purpose Forming Film, Steam Sterilizable Stiff, Heat Resistant Blown Film
Process Cast Monolayer Blown Multilayer
Gauge 4-mil 4.5-mil 3.0-mil

Layer Material Layer Material
Layer Thickness Percentage Resin Density M.I. Thickness Percentage Resin Density M.I.
(%) In Layer Type (g/cc) (dg/min) (%) In Layer Type (g/cc) (dg/min)

A 100 30 m-h-LLDPE 0.918 1.00 10 60 o-LLDPE 0.920 1.00
COC: COC:
70 6013F-04 1.020 0.90 40 6013F-04 1.020 0.90

B 20 85 o-LLDPE 0.920 1.00
COC:
15 6013F-04 1.020 0.90

C 40 65 HDPE 0.962 1.00
20 o-LLDPE 0.920 1.00
COC:
15 6013F-04 1.020 0.90

B 20 85 o-LLDPE 0.920 1.00
COC:
15 6013F-04 1.020 0.90

A 10 60 o-LLDPE 0.920 1.00
COC:
40 6013F-04 1.020 0.90


Test Structures: TOPAS Blends II

ID T5: PP / LLDPE+LDPE / PP T12: 36% TOPAS 6015 PP Coex T14: 21% TOPAS 6015 PP Coex
T16: 36% TOPAS 5013 PP Coex T18: 21% TOPAS 5013 PP Coex
Purpose PP Homopolymer LLDPE/LDPE Coex Without COC High COC Content Coex with PP Low COC Content Coex with PP
Process Cast 3-Layer Cast 5-Layer Cast 5-Layer
Gauge 6.0-mil 6-mil 6-mil

Layer Material Layer Material Layer Material
Layer Thickness Percentage Resin Density M.I. Thickness Percentage Resin Density M.I. Thickness Percentage Resin Density M.I.
(%) In Layer Type (g/cc) (dg/min) (%) In Layer Type (g/cc) (dg/min) (%) In Layer Type (g/cc) (dg/min)

PP PP PP
D 20 100 Homopolymer 0.900 8.50 10 100 Homopolymer 0.900 8.50 10 100 Homopolymer 0.900 8.50

B 10 100 o-LLDPE 0.920 1.00 10 100 o-LLDPE 0.920 1.00

A 60 80 o-LLDPE 0.920 1.00 60 35 o-LLDPE 0.923 0.75 60 55 o-LLDPE 0.923 0.75
20 LDPE 0.918 12.00 60 COC 1.02 3.6 / 43 35 COC 1.02 3.6 / 43
5 LDPE 0.918 12.00 10 LDPE 0.918 12.00

B 10 100 o-LLDPE 0.920 1.00 10 100 o-LLDPE 0.920 1.00

PP PP Random PP Random
C 20 100 Homopolymer 0.900 8.50 10 100 Copolymer 0.902 6.50 10 100 Copolymer 0.902 6.50


Flat Film Properties


Tensile Strength At Yield (ASTM D882)
MD TD

6000

5000
Tensile Yield Strength (psi)

4000

3000

2000

1000

0
T5: PP / T1: TOPAS 6013 T7: T8: T12: 36% T16: 36% T14: 21% T18: 21%
LLDPE+LDPE / / LLDPE 4.0 mil 6013+LLDPE & 6013+LLDPE & TOPAS 6015 PP TOPAS 5013 PP TOPAS 6015 PP TOPAS 5013 PP
PP 6.0 mil 6013+HDPE 4.5 6013+HDPE 3.0 Coex Coex Coex Coex
mil mil

COC Improves Film Yield Strength By 50 – 200%
Good Balance Between Machine and Transverse Directions (20 IPM)


Impact Resistance

Film Slow Puncture Slow Puncture Fast Puncture
Gauge TOPAS® Break Force Energy to Fast Puncture Total Energy (ft-
Film Description (mil) COC (%) (lb) Break (lbf-in) Peak Force (lb) lb)
Test Method ASTM F1306-90 ASTM F1306-90 ISO 7765-2 ISO 7765-2

T5: PP / LLDPE+LDPE / PP 6.0 0 9.7 6.9 32.4 1.6
T1: TOPAS 6013 / LLDPE 4.0 70 10.2 1.8 11.8 0.1

T7: 5-Layer 6013 / LLDPE & 6013 / HDPE Blends 4.5 20 5.4 3.1 17.8 0.6

T8: 5-Layer 6013 / LLDPE & 6013 / HDPE Blends 3.0 20 3.8 1.5 9.4 0.4
T12: 36% TOPAS 6015 PP Coex 6.0 36 16.9 6.3 25.2 0.8
T16:36% TOPAS 5013 PP Coex 6.0 36 5.1 2.2 26.5 0.3
T14: 21% TOPAS 6015 PP Coex 6.0 21 13.0 6.4 40.5 1.7
T18: 21% TOPAS 5013 PP Coex 6.0 21 11.4 5.4 28.3 0.7

Puncture Resistance Can Be Enhanced By TOPAS COC; Depends On Content & Molecular Weight
Lower Percentage Of Higher Molecular Weight COC Improves Puncture Resistance


Tensile Modulus (ASTM D882)
MD TD

200,000

180,000

160,000

140,000
odulus (psi)

120,000

100,000
Tensile M

80,000

60,000

40,000

20,000

0
T5: PP / T1: TOPAS 6013 / T7: 6013+LLDPE & T8: 6013+LLDPE & T12: 36% TOPAS T16: 36% TOPAS T14: 21% TOPAS T18: 21% TOPAS
LLDPE+LDPE / PP LLDPE 4.0 mil 6013+HDPE 4.5 6013+HDPE 3.0 6015 PP Coex 5013 PP Coex 6015 PP Coex 5013 PP Coex
6.0 mil mil mil

COC Improves Film Stiffness By 50 – 200%
Good Balance Between Machine and Transverse Directions (20 IPM)


Tear Resistance (ASTM D1922)
MD TD

3500

3000

2500
T a R s ta c (g m )
e r e is n e ra s

2000

1500

1000

500

0
T5: PP / T1: TOPAS 6013 T7: T8: T12: 36% T16: 36% T14: 21% T18: 21%
LLDPE+LDPE / / LLDPE 4.0 mil 6013+LLDPE & 6013+LLDPE & TOPAS 6015 PP TOPAS 5013 PP TOPAS 6015 PP TOPAS 5013 PP
PP 6.0 mil 6013+HDPE 4.5 6013+HDPE 3.0 Coex Coex Coex Coex
mil mil

Ordered Alignment Of COC Domains In Films Reduces Tear Resistance
Low Tear Resistance Does Not Imply Poor Durability


Retort Pouch Preparation


Pouch Preparation

Lamination
▶ Faustel Pilot Size Laminator
▶ 50 FPM Line Speed
▶ 48 Gauge Corona Treated PET
Film Applied to All Untreated Test
Films
▶ Retortable Henkel Adhesive (3.0
– 4.0 lb/ream Basis Weight)
▶ Dryer: 150ºF
▶ Nip: 160ºF


Pouch Preparation

Pouch Fabrication

▶ Pouch Machine: Shanghi
Gaoqin Packaging Machinery
FSD-600SZ

▶ 100 – 125 4-Side Seal Pouches
per Test Film

▶ Size: 5.0 x 7.5 Inches

▶ Bottom Seal: ½-inch

▶ Side Seals: 3/16-inch

▶ Top Seal: 3/8-inch


Pouch Preparation

Pouch Filling and Sealing
▶ Pouch Filling Machine: Toyo
Jidoki Model PMS
▶ Filled With 8 oz Of Water
▶ Pouches Sealed At 140ºC.
▶ PET Removed Prior To Retort


Pouch Seal Strength (ASTM F88-05)
TOPAS® Bottom Seal Side Seal Gauge
Film Description COC (%) (gram/inch) (gram/inch) (mil)
Seal Dimension (inch) 0.5000 0.1875

T5: PP / LLDPE+LDPE / PP 0 163 803 6.0
T1: TOPAS 6013 / LLDPE 70 2,765 1,266 4.0
T7: 5-Layer 6013 / LLDPE & 6013 / HDPE Blends 20 2,200 1,242 4.5
T8: 5-Layer 6013 / LLDPE & 6013 / HDPE Blends 20 2,916 2,008 3.0
T12: 36% TOPAS 6015 PP Coex 36 1,216 862 6.0
T16: 36% TOPAS 5013 PP Coex 36 1,442 933 6.0
T14: 21% TOPAS 6015 PP Coex 21 1,678 414 6.0
T18: 21% TOPAs 5013 PP Coex 21 1,389 753 6.0

Commercial Retort
PET / adh / Foil / adh / Nylon / adh / cast PP 0 3,262 2,963 3.9

All Films Have Excellent Seal Strength
COC Enhances Seal Strength


Retort Program: Standard 250ºF

Program Temperature
Sequence (ºF) Time (Minute) Pressure (psi)

1 220 6 20
2 250 10 30
3 250 60 30
4 220 8 25
5 80 8 25
6 80 20 15

Sudry Model APR-95 Pilot Retort
Retort All Pouches In Still Water Spray


Pouch Appearance After 250ºF Retort
®
TOPAS Seal Gauge
Film Description COC (%) Leaks Coloration Appearance (mil)

T5: PP / LLDPE+LDPE / PP 0 No leakage Discolored Slight stress on seals 6.0
Holes where water Stress on side and
T1: TOPAS 6013 / LLDPE 70 sprayed None botom seals 4.0

T7: 5-Layer 6013 / LLDPE & 6013 / HDPE Blends 20 Many leaks Discolored Much stress on seals 4.5

T8: 5-Layer 6013 / LLDPE & 6013 / HDPE Blends 20 Many leaks Discolored Much stress on seals 3.0

T12: 36% TOPAS 6015 PP Coex 36 No leakage None Slight stress on seals 6.0


Stress on side and
T18: 21% TOPAS 5013 PP Coex 21 No leakage Discolored at seals botom seals 6.0

Commercial Retort
PET / adh / Foil / adh / Nylon / adh / cast PP 0 No leakage None Slight stress on seals 3.9

All PP Coextruded Films Survived 250ºF Retort
Films T12 & T18 Were Very Strong After Retort


Retort Program: Elevated 260ºF

Program Temperature
Sequence (ºF) Time (Minute) Pressure (psi)

1 220 4 15
2 250 2 30
3 260 2 30
4 260 60 30
5 200 3 30
6 140 2 25
7 80 2 20
8 80 20 15

Sudry Model APR-95 Pilot Retort
Retort All Pouches In Still Water Spray
Program Time Reduced From 112 to 95 Minutes
Higher Retort Temperatures Increases Productivity


Pouch Appearance After 260ºF Retort

TOPAS® Seal Gauge
Film Description COC (%) Leaks Coloration Appearance (mil)

T5: PP / LLDPE+LDPE / PP 0 No leakage Slight discoloration Stress on seals 6.0
T12: 36% TOPAS 6015 PP Coex 36 No leakage Slight discoloration Stress on seals 6.0

Commercial Retort
PET / adh / Foil / adh / Nylon / adh / cast PP 0 No leakage None Slight stress on seals 3.9

Films That Survived 250ºF Retort Were Retorted at 260ºF
All Films Tested Survived Retort at 260ºF


Retort Results


Tensile Modulus (ASTM D882)
Preretort Post 250 Post 260

200

180

160

140
Tensile Modulus (ksi)

120

100

80

60

40

20

0
T5: PP / T1: TOPAS T7: T8: T12: 36% T14: 21% T16: 36% T18: 21%
LLDPE+LDPE 6013 / LLDPE 6013+LLDPE 6013+LLDPE 6015 / PP 6015 / PP 5013 / PP 5013 / PP
/ PP 6.0 mil 4.0 mil (MD / & 6013+HDPE & 6013+HDPE Coex (MD Coex (MD / Coex (MD / Coex (MD /
(MD / TD) TD) 4.5 mil (MD 3.0 mil (MD / /TD) TD) TD) TD)
/TD) TD)

All Films Show Higher Stiffness Post Retort; Common Phenomenon
Higher Stiffness Appears Proportional to COC Content (2 IPM)


Tensile Strength (ASTM D882)

8

7

6

5
Tensile Strength (ksi)

4

3

2

1

0
/TD) TD)

Modest Change of Tensile Strength Post Retort
Magnitude of Tensile Strength Is Proportional to COC Content & MW (2 IPM)


Yield Elongation (ASTM D882)

30

25

20
Yield Elongation (%)

15

10

5

0
/TD) TD)

Modest Reduction In Yield Elongation Post Retort
Yield Elongation Is More Asymmetric Pre – Vs. Post Retort


T5: After & Before Retort / DMA
Sample: AL1367-9 Topas multi-L film File: C:TADataDMAQ306AL1367_9.001
Size: 21.5500 x 6.3500 x 0.1500 mm DMA Operator: RTC
Method: Topas-Blend-TempSwe Run Date: 05-Jul-2006 07:54
Comment: AL1367-9 Topas multi-L filmm Instrument: 2980 DMA V1.7B
1000 1000

137.89°C

100

] Storage Modulus (MPa)

] Loss Modulus (MPa)
100 1

] Tan Delta
10

[
10 0.1

[
[
1

1 0.1
30 50 70 90 110 130 150 170
Temperature (°C) Universal V4.1D TA Instruments

PP - LLDPE+LDPE - PP
Discoloration After Retort At 250ºF
High Modulus Retained Over Broad Temperature


Method: Topas-Blend-TempSwe Run Date: 30-Jun-2006 12:35
Comment: AL1367-5 Topas multi-L film Instrument: 2980 DMA V1.7B
1000 100


100 1 10

] Tan Delta
[
10 0.1 1

[
[
157.25°C

1 0.1
30 50 70 90 110 130 150 170

70% 6013 COC + 30% LLDPE
Commercial Steam Sterilization Film
Softens Gradually Up To Glass Transition Temperature



Sample: AL1367-3 Topas blend film File: C:TADataDMAQ306AL1367_3.001
Comment: AL1367-3 Topas blend film Instrument: 2980 DMA V1.7B
1000 1000

122.80°C

100


100 1

] Tan Delta
10

[
10 0.1

[
[
1

1 0.1
30 50 70 90 110 130 150 170

5-Layer 6013 / LDPE + 6013 / HDPE Blended Blown Film
4.5-mil, Failed Retort at 250ºF
Glass Transition Temperature Occurs at Retort


Sample: AL1367-4 Topas blend film File: C:TADataDMAQ306Al1367_4.001
1000 1000

108.56°C
100


100 1

] Tan Delta
10

[
10 0.1

[
[
1

1 0.1
30 50 70 90 110 130 150 170

5-Layer 6013 / LDPE + 6013 / HDPE Blended Blown Film
3.0-mil, Failed Retort at 250ºF
Glass Transition Temperature Occurs Significantly Below Retort


T12: Before & After Retort / DMA
Sample: AL1367-1B Topas blend film File: C:TADataDMAQ306AL1367_1B.001
1000 100

149.45°C


100 1 10

] Tan Delta
[
10 0.1 1

[
[
1 0.1
30 50 70 90 110 130 150 170

36% TOPAS 6015
Slight Discoloration, But Excellent Integrity After Retort at 250ºF
Stiffer At Much Higher Temperatures vs. TOPAS 5013


T16: Pouches Before & After Retort

Sample: AL1367-2 Topas blend film File: C:TADataDMAQ306AL1367_2.001
1000 1000

139.37°C

100


100 1

] Tan Delta
10

[
10 0.1

[
[
1

1 0.1
30 50 70 90 110 130 150 170

36% TOPAS 5013
Good Appearance After Retort At 250ºF.
High Modulus Retained Over Broad Temperature



1000 1000

100


100 1
124.83°C

] Tan Delta
10

[
10 0.1

[
[
1

1 0.1
30 50 70 90 110 130 150 170

21% TOPAS 6015
Slight Discoloration, But Excellent Integrity After Retort at 250ºF
Stiffer At Higher Temperatures vs. TOPAS 5013


T18: Pouches Before & After Retort

1000 1000

100


100 1

] Tan Delta
10
133.63°C

[
10 0.1

[
[
1

1 0.1
30 50 70 90 110 130 150 170

21% TOPAS 5013
Good Appearance After Retort At 250ºF.
Package Maintains Integrity & Dimensional Stability.


Pouch Burst Test: (ASTM D642-00)

TOPAS® COC 250ºF Retort 260ºF Retort
Film Description (%) Force (lb) Force (lb)

T5: PP / LLDPE+LDPE / PP 0 729 424
T12: 36% TOPAS 6015 PP Coex 36 228 243
T16: 36% TOPAS 5013 PP Coex 36 311 372
T14: 21% TOPAS 6015 PP Coex 21 123 258
T18: 21% TOPAS 5013 PP Coex 21 706 943

Commercial Retort
PET / adh / Foil / adh / Nylon / adh / cast PP 0 1,075 1,000

Burst Tester - Lansmont M13710
Pouches Containng COC Had Higher Force After Retorting At 260ºF vs. 250ºF
TOPAS 5013 Enhanced Burst Bettter Than TOPAS 6015


Gelbo Flex: (ASTM D392-93)

Film
®
Gauge TOPAS
Film Description (mil) COC (%) Pre-Retort 250ºF Retort 260ºF Retort
T5: PP / LLDPE+LDPE / PP 6.0 0 No Pinholes No Pinholes Pinholes
T1: TOPAS 6013 / LLDPE 4.0 70 Pinholes Pinholes Pinholes

T7: 5-Layer 6013 / LLDPE & 6013 / HDPE Blends 4.5 20 No Pinholes No Pinholes No Pinholes

T8: 5-Layer 6013 / LLDPE & 6013 / HDPE Blends 3.0 20 No Pinholes No Pinholes No Pinholes
T12: 36% TOPAS 6015 PP Coex 6.0 36 Pinholes No Pinholes No Pinholes
T16: 36% TOPAS 5013 PP Coex 6.0 36 Pinholes No Pinholes No Pinholes
T14: 21% TOPAS 6015 PP Coex 6.0 21 Pinholes Pinholes Pinholes
T18: 21% TOPAS 5013 PP Coex 6.0 21 Pinholes Pinholes Pinholes

Commercial Retort
PET / adh / Foil / adh / Nylon / adh / cast PP 0 26 No Pinholes Not Tested No Pinholes

Gelbo Flex Tester Model 500ES
All Samples Flexed At 250 Cycles
Pinholes Detected By Penetration Of Red Dye Through Film On To White Background
Four COC Coextrueded Films Exhibit Excellent Durability & Flex Crack Resistance


MVTR @ 37.8ºC; 100% R.H. (ASTM F1249-01)

Post 250ºF Post 260ºF
Pre-Retort Retort MVTR Retort MVTR
TOPAS® MVTR (g/100 (g/100 in2 / (g/100 in2 /
Film Description COC (%) in2 / day) day) day)

T5: PP / LLDPE+LDPE / PP 0 0.157 --- 0.110
T7: 5-Layer 6013 / LLDPE & 6013 / HDPE Blends 20 0.211 0.200 0.176
T8: 5-Layer 6013 / LLDPE & 6013 / HDPE Blends 20 0.129 --- ---
T12: 36% TOPAS 6015 PP Coex 36 0.074 --- 0.053
T16: 36% TOPAS 5013 PP Coex 36 0.071 0.050 ---

Commercial Retort
PET / adh / Foil / adh / Nylon / adh / cast PP 0 0.019 --- 0.031

Foil Based Commercial Retort Pouches Loses MVTR When Excessively Flexed
COC Containing Structures Maintain Good MVTR After Retort
COC Containing Structures Can Improve Post Retort MVTR Of Polyolefin Film


OTR @ 37.8ºC; 0% R.H. (ASTM D3985-02)
Post 250ºF Post 260ºF
Pre-Retort Retort OTR Retort OTR
TOPAS® OTR (cc/100 (cc/100 in2 / (cc/100 in2 /
Film Description COC (%) in2 / day atm) day atm) day atm)

T5: PP / LLDPE+LDPE / PP 0 67 38 ---
T7: 5-Layer 6013 / LLDPE & 6013 / HDPE Blends 20 71 85 ---
T8: 5-Layer 6013 / LLDPE & 6013 / HDPE Blends 20 63 --- ---
T12: 36% TOPAS 6015 PP Coex 36 22 --- 15
T16: 36% TOPAS 5013 PP Coex 36 26 35 ---

Commercial Retort
PET / adh / Foil / adh / Nylon / adh / cast PP 0 26 --- Fail

Foil Based Commercial Retort Pouches Loses Barrier When Excessively Flexed
COC Containing Structures Maintain Good OTR After Retort
COC Containing Structures Can Improve Post Retort OTR Of Polyolefin Film


Summary & Conclusions


Film & Retort Pouch Property Comparative
T5: PP / (LLDPE+LDPE) / PP T12: PP / (LLDPE+LDPE+6015) / PP

(+) Slow Puncture Force (lb)
250

200
(+) MVTR @ 260ºF Retort (g/100in2 day) ( - ) Slow Puncture Energy (in-lb)
150

100

50

(+) MVTR Pre-Retort (g/100in2 day) 0 (+) MD Tensile Yield (ksi)

(+) OTR @ Post Retort (cc/100in2 day atm) (+) TD Tensile Yield (ksi)

(+) Glass Transition Temperature (ºC)


TOPAS® COC – Conclusions & Benefits

TOPAS COC Enhances Stiffness, Dimensional Stability &
Package Integrity At Retort Temperatures

TOPAS COC Enables Use Of PE, Especially LLDPE, In
Retort Applications

TOPAS COC Improves Moisture And Oxygen Barrier
Properties Of Polyolefins

COC Coextruded Structures With PP Are Most Effective

TOPAS 6015 (Higher Molecular Weight and Tg) Is More
Effective Than TOPAS 5013 For Property Enhancement.
TOPAS 6017, Tg = 180ºC, Should Be Included In Future
Development Programs


Acknowledgments

TOPAS® Retort Team:
Adam Barton, Wolfram Goerlitz, Randy Jester,
Tim Kneale, Robert Roschen, Bernd Sparenberg

CEFPACK Consortium, Clemson University:
Dr. Duncan Darby, Dr. Scott Whiteside &
Ms. Pat Marcondes

TOPAS® Cyclic Olefin Copolymer (COC)
Your Clear Advantage in Retort.
Any questions?


NOTICE TO USERS: To the best of our knowledge, the information contained in this publication is accurate, however we do not assume
any liability whatsoever for the accuracy and completeness of such information. The information contained in this publication should not be
construed as a promise or guarantee of specific properties of our products. All technical information and services of TOPAS Advanced
Polymers, Inc. are intended for use by persons having skill and experience in the use of such information or service, at their own risk.

Further, the analysis techniques included in this publication are often simplifications and, therefore, approximate in nature. More vigorous
analysis techniques and prototype testing are strongly recommended to verify satisfactory part performance. Anyone intending to rely on
any recommendation or to use any equipment, processing technique or material mentioned in this publication should satisfy themselves
that they can meet all applicable safety and health standards.

It is the sole responsibility of the users to investigate whether any existing patents are infringed by the use of the materials mentioned in
this publication.

Properties of molded parts, sheets and films can be influenced by a wide variety of factors including, but not limited to, material selection,
additives, part design, processing conditions and environmental exposure. Any determination of the suitability of a particular material and
part design for any use contemplated by the user is the sole responsibility of the user. The user must verify that the material, as
subsequently processed, meets the requirements of the particular product or use. The user is encouraged to test prototypes or samples of
the product under the harshest conditions to be encountered to determine the suitability of the materials.

Material data and values included in this publication are either based on testing of laboratory test specimens and represent data that fall
within the normal range of properties for natural material or were extracted from various published sources. All are believed to be
representative. These values alone do not represent a sufficient basis for any part design and are not intended for use in establishing
maximum, minimum, or ranges of values for specification purposes. Colorants or other additives may cause significant variations in data
values.

We strongly recommend that users seek and adhere to the manufacturer’s current instructions for handling each material they use, and to
entrust the handling of such material to adequately trained personnel only. Please call TOPAS Advanced Polymers, Inc. - hotline (859)
746-6447 x4400 for additional technical information. Call Customer Services at (859) 746-6447 x4402 for the appropriate Material Safety
Data Sheets (MSDS) before attempting to process our products. Moreover, there is a need to reduce human exposure to many materials
to the lowest practical limits in view of possible adverse effects. To the extent that any hazards may have been mentioned in this
publication, we neither suggest nor guarantee that such hazards are the only ones that exist.

The products mentioned herein are not intended for use in medical or dental implants.


Enhancing Polyolefin Films for Retort Applications Using Cyclic Olefin Copolymers

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