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Advantages and applications of LLDPE Quaterpolymer

Technology

Antônio Xavier

Head of Product Development

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Braskem Pluris®

� Agenda� Braskem introduction

� Pluris ® a new generation of LLDPE

� Production background

� Properties

� Applications

� Automatic Packaging

� Shrink Film

� Heavy Duty Bags

� Pet Food

� Agricultural silage

� Adhesion agent for PP / PE

� Questions and Answers

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Braskem introduction

� Braskem is the leader in the Latin America thermoplastics resins market

� Integrated operations

3rd 3rd generationgeneration

Plastic Products

RefiningRefining

RawMaterial

1st 1st generationgeneration

Basic Petrochemicals

2nd. 2nd. generationgeneration

Thermoplastic Resins

Integration

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Braskem introduction

14 industrial units in Brazil

Triunfo

Camaçari

Maceió

São Paulo

HDPE / LLDPE Unipol

HDPE / UTEC Mitsubishi

HDPE / LLDPE Sclairtech

LDPE / EVA Sumitomo

Polyolefins technologies

LDPE Equistar

LLDPE Spherilene

PP Spheripol

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Center of Technology and Innovation

� Focus on value creation for

customers

– Product customization

– New applications

– Client services

� 200 researchers

� 8 pilot plants

� US$ 100 MM in technology

assets

� Partnerships with

customers, suppliers,

universities and research

centers

� Development of products,

technologies, catalysts and

applications

�159 patents filled until

2007

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Development of new product families

Internally developed technology for the production of UHMWPE

Pioneer on the production of metallocene PE in Latin America

High clarity PP grades for rigid packaging

BOPP sealant layer

Ideal product for kitchen cutting boards and playground toys

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Braskem Pluris®

Quaterpolymer LLDPE

Ethylene – Propylene - Butene - Hexene

Produced exclusively at Spherilene ® technology

plant in a four reactors line

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Braskem Pluris®

Spherilene® Process

Catalyst

M

1st ReactorC3-C4-C2

Pelletizing Pelletizing systemsystem

Comonomers

M

2nd ReactorC2-C4-C6

M

Ethylene

Comonomers

Hydrogen

Prepolimerization section

Polimerization section

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Braskem Pluris®

�Braskem Pluris ® main advantages:

�Unique mechanical properties balance

�Higher stiffness

�Excellent impact strength

�Better bubble stability compared to other LLDPE’s

�Low blocking force

�High sealing strength

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Braskem Pluris®

Unique properties

69/155109/238kgf/cmD-1922Elmendorff Tear Strength (DM/DT)

127146gD-1709Dart Drop ImpactStrength

196/223261/291MPaD-8821% Secant Modulus(DM/DT)

973/1228863/1197%D-882Elongation at break(DM/DT)

40/3156/39MPaD-882Tensile at break(DM/DT)

11.57.5%D-2457Gloss - 60 °

8.616.0%D-1003Haze0.9210.920g/cm³D-1505Density

0.70.55g/10 minD-1238Melt Flow Index(190°C/2,160kg)

LLDPE C4

UnitsASTM Method

Braskem Pluris ®

97/153

>850

132/151

1007/1207

72/63

12.06.7

0.917

1.0

MetalloceneLLDPE

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Braskem Pluris®Sealing strength

0,0

0,5

1,0

1,5

2,0

2,5

95 100 105 110 115 120 125 130 135

Temperature (ºC)

Force (N)

Braskem Pluris®Conventional LLDPE

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Braskem Pluris® - a pplications

High PerformanceAutomatic Packaging Films

(Form Fill Seal)

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High PerformanceAutomatic Packaging Films

Advanced solution for food packaging

�High gloss and clarity

�Very good stiffness/toughness balance

�Excellent sealing properties

�Braskem proposes a combination of Pluris®, Flexus®, conventional LLDPE and LDPE

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High PerformanceAutomatic Packaging Films

80-90% Braskem Flexus ® 9211 + 10-20% LDPE

80% Pluris ® 9310 + 20% LDPE

70-80% C4 LLDPE + 20-30% LDPE

“Braskem Solution” 3 layer coex structure

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High PerformanceAutomatic Packaging Films

Film samples: 3 coex layer, 80 micra thickness, 20% LDPE

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High PerformanceAutomatic Packaging Films

Film samples: 3 coex layer, 80 micra thickness, 20% LDPE

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High PerformanceAutomatic Packaging Films

Film samples: 3 coex layer, 80 micra thickness, 20% LDPE

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High PerformanceAutomatic Packaging Films

Film samples: 3 coex layer, 80 micra thickness, 20% LDPE

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Braskem Pluris® - a pplications

Shrink Films

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Shrink Film

�Secondary package for handling, storage and transportation

�High Stiffness/Tear strength

�Competitive to LDPE shrinkage levels

�Lower failures in handling, storage and transportation

�Integrity of the package

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Shrink Film

�Braskem: 70% Pluris® 9300 + 30% blown molding HDPE�Standard: 60% LDPE + 30% HDPE + 10% LLDPE

0,250,26External COF

0,230,23Internal COF

70/1070/11Shrinkage (%) MD/TD

5458Thickness (µm)

BraskemStandard

MD: machine direction / TD: transverse direction

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Shrink Film

MD: machine direction / TD: transverse direction

302324

375413

100

150

200

250

300

350

400

450

Standard Braskem

1% Secant Modulus (MPa) MD

1% Secant Modulus (MPa) TD

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Shrink Film

MD: machine direction / TD: transverse direction

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169

28

180

0

50

100

150

200

Standard Braskem

Elmendorf Tear (Kgf/cm) MD

Elmendorf Tear (Kgf/cm) TD

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Shrink Film

0,22

0,29

0

0,1

0,2

0,3

0,4

Standard Braskem

Dart Drop Impact Strength (Joule)

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Braskem Pluris® - a pplications

Heavy Duty Bags

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Heavy Duty Bags

�Chemicals, Agricultural Products,Fertilizers

�Higher Stiffness�Very good Impact Strength�Superior Sealing strength�High Coefficient of Friction (COF)

�Low bag deformation�Better stack stability�Package storage handling & shelf life integrity

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Heavy Duty Bags

80-90% Braskem Flexus ® 9200 + 10-20% LDPE

80-90% Pluris ® 9300 + 10-20% LDPE

70-80% Pluris ® 9300 + 20-30% LDPE

“Braskem Solution” 3 layer coex structure

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Heavy Duty Bags

C8 LLDPE

Braskem Solution

-

50,00

100,00

150,00

200,00

250,00

300,00

1% S

ecan

t Modu

lus M

D (MPa)

1% S

ecan

t Modu

lus T

D (MPa)

Tensil

e at

Break

MD (M

Pa)

MPa

Stiffness

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Braskem Pluris® - a pplications

Pet Food Packaging

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Pet Food Packaging

�High stiffness and toughness

�Excellent sealing properties

�Good fat barrier

�Braskem developed a structure combining Pluris®, Flexus®,

HDPE and LDPE that leads to superior films

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Pet Food PackagingBraskem Solution

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Pet Food PackagingC8/PP based Solution

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Pet Food PackagingBetter Properties Combination

43,248Fat barrier – time to failure (h)

1,441,52Dart Drop - energy at Max Load (J)

118/20799/267Elmendorf Tear Strength MD/TD (kgf/cm)

1098/12131115/1112Elongation at Break MD/TD (%)

34,9/33,540,0/36,8Tensile at Break MD/TD (MPa)

190/200195/2231% Secant Modulus MD/TD (MPa)

C8 LLDPE/PP based Solution

Braskem Solution

Remarks: 130 µm thickness film % of HDPE and PP = 20%

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Hot Tack STL 869/2004

0,0

2,0

4,0

6,0

8,0

10,0

12,0

95 100 105 110 115 120 125

Temperatura (ºC)

For

ça (

N)

Braskem Solution

C8/PP Based

Pet Food PackagingExcellent Sealing Performance

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Pet Food PackagingExcellent Sealing Performance

Ultimate Strength STL 869/2004

0,0

5,0

10,0

15,0

20,0

25,0

30,0

35,0

40,0

45,0

95 100 105 110 115 120 125 130

Temperatura (ºC)

For

ça (

N)

C8/PP Based

Braskem Solution

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Braskem Pluris® - a pplications

Silos for

agricultural

application

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Silos for agricultural application

Braskem Solution for agricultural silage – expected

benefits with Pluris and LDPE in the formulation:

�Higher stiffness

�Better mechanical properties

�Higher gloss

�To increase grain protection

�To increase silo capacity

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Silos for agricultural application

Tear strength

101

51 5777

169132

106

148

0

50

100

150

200

Brk Silo 1 Silo 2 Silo 3

MD TD

Better mechanical properties increase protection of the grains

Puncture test

16,7

12,414,5 13,4

0

5

10

15

20

Brk Silo 1 Silo 2 Silo 3

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Silos for agricultural application

Tensile at break X Elongation

310 250 200 250

1050 950

12501100

0

500

1000

1500

Brk Silo 1 Silo 2 Silo 3

Tensile Elongation

Higher stiffness / tensile at break and lower elongation

increase silo capacity

Stiffness

0,19

0,14

0,17 0,17

0

0,05

0,1

0,15

0,2

Brk Silo 1 Silo 2 Silo 3

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Silos for agricultural application

Higher gloss improves sunlight reflection and implies in a low temperature inside

the silo and better protection of the grains

Gloss 45º

5141

3039

0102030405060

Brk Silo 1 Silo 2 Silo 3

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Braskem Pluris® - a pplications

Pluris:

adhesion agent

for PE/PP

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Adhesion Agent between PE/PP

Polyethylene

Pluris ®

Polypropylene

3 layer coex structureWith or without Slip agent, depending on the applic ation

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Adhesion Agent between PE/PP

Core Layer

Pluris or

C4 LLDPE

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Adhesion Agent between PE/PP

0,0

5,0

10,0

15,0

20,0

25,0

30,0

35,0

40,0

45,0

50,0

95 100 105 110 115 120 125 130 135 140 145 150 155 160

Temperature (ºC)

For

ce (

N)

Pluris in Core Layer PE in Core Layer

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Braskem Pluris®

�Summary of benefits of Pluris ® technology

� Improved quality of packaging

� Optimal pallet and stack stability

� Excellent compatibility within PE/PP coex layers

� Important opportunities of film downgauging

� Higher stiffness than conventional LLDPE’s

� Mechanical resistance like C6 LLDPE

� Good sealability

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Braskem Pluris®

Questions and answers