DuPont TM Viton®Introduction to Our Next Generation DiPolymers (NGDP)

DuPont Performance Polymers ConferenceDuPont Performance Polymers Conference

May 20th, 2010May 20th, 2010

AlbergoAlbergo CoccaCocca HotelHotel

SarnicoSarnico ((BgBg))

Patrick Patrick PagliaPaglia

2

Outline

Background: Why Develop the Next Generation Dipolym er (NGDP) Product Line

NGDP Product Line

NGDP for Increased Productivity

NGDP for Improved Part Performance

Summary

3

TechnologyTechnology Evolution of VitonEvolution of Viton ®®

Impr

oved

Pro

cess

ing

Improved end-use Performance

GF and

GLT

GF andGF and

GLTGLT

APAAPAAPA

Viton® A

Diak™ 1

VitonViton®® AA

DiakDiak™™ 11

E-60CEE--60C60C

VTR-9160

A-601C

A-206C

A-401C

E-60C

VTRVTR--91609160

AA--601C601C

AA--206C206C

AA--401C401C

EE--60C60C

NGDPNGDPNGDP

Impr

oved

Pro

cess

ing

Improved end-use Performance

GF and

GLT

GF andGF and

GLTGLT

APAAPAAPA

Viton® A

Diak™ 1

VitonViton®® AA

DiakDiak™™ 11

E-60CEE--60C60C

VTR-9160

A-601C

A-206C

A-401C

E-60C

VTRVTR--91609160

AA--601C601C

AA--206C206C

AA--401C401C

EE--60C60C

NGDPNGDPNGDP

APA delivered break-through technology inspecialty fluoroelastomersin 2002.

NGDP balances the Viton®portfolio by advancing thestate of the art in dipolymerfluoroelastomers

4

Why Develop A Next Generation Dipolymer Product Lin e?Why Develop A Next Generation Dipolymer Product Lin e?

Key Objective: Key Objective: Create A Superior Fluoroelastomer Dipolymer (66%F) OfferingCreate A Superior Fluoroelastomer Dipolymer (66%F) Offering

• Improved flow in injection and transfer molding• Improved compression set resistance• Fast cure rate

Resulting In Resulting In

•• Increased productivity Increased productivity •• Improved final part performanceImproved final part performance

5

NGDP NGDP -- Polymer LinePolymer Line

• 20 ML VTX-7619 & 70 ML VTX-7620 gum polymer sheets• Bisphenol curable

• VTX-7619 has (ML@121°C) of 20

• VTX-7619 useful for injection and transfer molding

• VTX-7620 has (ML@121°C) of 70

• VTX-7620 targeted at compression molding

• Can be compounded with VC50/VC30

• Can be blended with precompounds (PCs)

• Can be blended to make polymers ranging from 20ML to 70ML

6

NGDP NGDP -- PrecompoundPrecompound LineLine

• precompounds forming NGDP triangle• 60 Mooney – standard cure rate – VTR-7621

• 20 Mooney – standard cure rate – VTR-7622

• 20 Mooney – slower cure rate – VTX-7624

• Other precompound developed• 35 Mooney – precompound (for bonded parts) – VTX-7625

7

NGDP NGDP –– Compound Data with Gums VTXCompound Data with Gums VTX --7619 & VTX7619 & VTX--76207620

In typical compounds, NGDPgums yield fast, square curecurves while retaining excellent scorch safety

E113064 -Compound # A72-06 A72-07

Descr.

70 Mooney, VTX-7620 std. cmpd

20 Mooney, VTX-7619 std. cmpd

VTX-7620 sheet 97.3 -VTX-7619 sheet - 97.3VC50 2.2 2.2VC30 0.5 0.5ELASTOMAG 170 3 3N990 30 30Ca(OH)2 HP-XL 6 6

Mooney Scorch @ 121°CMinimum 56 205 Pt. Rise (min) 23.4 >3010 Pt. Rise (min) >30 -

MDR @ 177°C, 0.5 Degree Arc, 100 Range, 6 Minute Cl ock M-L (dNm) 2.6 0.6ts-2 (min) 1.0 1.2t'50 (min) 1.3 1.3t'90 (min) 1.9 2.1t'95 (min) 2.3 2.6M-H (dNm) 32.7 26.7

8

Product Offer Product Offer -- NGDP Precompound NGDP Precompound ““ TriangleTriangle ””

NGDP Pcmpd Triangle; Mooney vs ts2 time

0

10

20

30

40

50

60

70

0.8 1.0 1.2 1.4 1.6 1.8

MDR ts2 time (min)P

cmpd

Moo

ney,

ML

@ 1

21°C

High viscosity

Low viscosity Fast cure /

short flowSlower cure / Longer flow

Injection molded O-ring pcmds like

VTR-9160 are in 30-35 Mooney area.

VTR-9160

Benefits:Benefits:• Blending options:

• to vary compound viscosity • to vary compound ts2 & tc90 cure speed

• Increased compounding flexibility• Reduced inventory levels

9

NGDP precompound triangle, Mooney vs. ts2 time

10

20

30

40

50

60

1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6

ts2 time (minutes)

Pcm

pd M

oone

y (M

L) @

121

°C

aa

VTR-7621

VTX-7624VTR-7622

Product Offer Product Offer -- NGDP Precompound NGDP Precompound ““ TriangleTriangle ”” ::Increased Compounding Flexibility with Precompounds and GumsIncreased Compounding Flexibility with Precompounds and Gums

Blends can be made to modify viscosity, cure speed or both. Blends can be done with VTR-7619 and 7620 as well

10

Product Construction with NGDP Precompound Product Construction with NGDP Precompound TriangleTriangle

• NGDP triangle precompounds can be blended with one another to replicate the nominal viscosity & cure characteristics of current commercial precompounds

• In this example

1- A NGDP blend for compression molding like A401C

2- A second NGDP blend is made for injection molding like VTR-9160

11

NGDP:NGDP: Increased ProductivityIncreased ProductivityThrough Broader Operating WindowThrough Broader Operating Window

Benefits:Benefits:• Option to reduce process aid levels -> further improved compression set resistance • Option to increase filler levels and reduce curative level while maintaining equal final viscosity, compression set resistance, and hardness• Injection molding flow improved – NEXT SLIDE

Current technology NGDP blend

VTR-9160 VTX-7622 / VTX-7621

Starting Pcmpd Mooney @ 121°C 35 35

71 55

36 20

Full compound Mooney after black and metal oxides added

Mooney viscoisty rise when compounded

NGDP pcmpd blend

VTX-7622 / 7623 16

31

15

~20 Mooney Pcmpd ~35 Mooney Pcmpds

viscosity

Current technology NGDP blend

VTR-9160 VTX-7622 / VTX-7621

Starting Pcmpd Mooney @ 121°C 35 35

71 55

36 20

Full compound Mooney after black and metal oxides added

Mooney viscoisty rise when compounded

NGDP pcmpd blend

VTX-7622 / 7623 16

31

15

~20 Mooney Pcmpd ~35 Mooney Pcmpds

viscosity

Current technology NGDP blend

VTR-9160 VTX-7622 / VTX-7621

Starting Pcmpd Mooney @ 121°C 35 35

71 55

36 20

Full compound Mooney after black and metal oxides added

Mooney viscoisty rise when compounded

NGDP pcmpd blend

VTX-7622 / 7623 16

31

15

~20 Mooney Pcmpd ~35 Mooney Pcmpds

viscosity

In a 35 Mooney viscosity (MV) precompoundcomparison, a NGDP black loaded compound shows a16 point lower Mooney viscosity rise than current standard Viton® VTR-9160

12

NGDP: Increased Productivity NGDP: Increased Productivity Through Better Injection Molding (IM) FlowThrough Better Injection Molding (IM) Flow

Benefits:Benefits:• faster IM fill times - shorter cycle times• option to use more cavities tool at a given press tonnage • option to use smaller runners resulting in less scrap

• 35 Mooney NGDP PC blend shows superior flow by filling the mold much faster than current standard 35 Mooney VTR-9160

• 20 Mooney NGDP PC blend can lower mold fill times even further, or can be injected at lower pressures

(Standard)

-214 O-ring Injection molding fill times (sec.)

0

2

4

6

8

10

12

14

50 60 70 80 90 100 110 120

Injection pressure (bars)

Inec

tion

time

(s)

.

VTR-916035 Mooney NGDP blend20 Mooney NGDP blend

13

Lab data confirms: Excellent Injection Molding (IM) Flow Lab data confirms: Excellent Injection Molding (IM) Flow of NGDP Precompoundsof NGDP Precompounds

• Same precompound viscosity• Lower compound viscosity with NGDP

0

2

4

6

8

10

12

14

16

0 5 10 15 20 25 30

Shot #

Inje

ctio

n tim

e - s

ec

Standard

NGDP

ML (1+10), 121 CPC 33cmpd 55MDR t90 2.2 min

ML (1+10), 121 CPC 32cmpd 64.3MDR t90 2.7 min

40 cavity D-214 O-ring, injection molding

14

BenefitsBenefits• Shorter mold closed time –> shorter cycle times

NGDP: Increased Productivity NGDP: Increased Productivity Through Fast Cure RatesThrough Fast Cure Rates

Compoundsidentical BpAF and accelerator = to standard A-type Viton® VTR-9129 recipe 30phr N990 black

Standard NGDP

t95 (min) 3.1 2.5 MH (dN-m) 30.3 30.2

Standard NGDP

t95 (min) 4.7 3.8 MH (dN-m) 22.3 22.9

9 MgO

Torque at MH % increase3 min 6 min after 3 min

VTR-9129 15.8 22.3 29.1VTX-7604 20.8 22.9 9.2

0

5

10

15

20

25

0 1 2 3 4 5 6

Time (min)T

orqu

e (d

N-m

) NGDP

Standard

177 C 9 MgO

0

5

10

15

20

25

30

35

0 1 2 3 4

Time (min)

Tor

que

(dN

-m)

177 C

VTX-7604

VTR-9129

6 Ca(OH)2, 3 MgO

Standard

NGDP

9 MgO

Torque at MH % increase3 min 6 min after 3 min

VTR-9129 15.8 22.3 29.1VTX-7604 20.8 22.9 9.2

0

5

10

15

20

25

0 1 2 3 4 5 6

Time (min)T

orqu

e (d

N-m

) NGDP

Standard

177 C 9 MgO9 MgO

Torque at MH % increase3 min 6 min after 3 min

VTR-9129 15.8 22.3 29.1VTX-7604 20.8 22.9 9.2

0

5

10

15

20

25

0 1 2 3 4 5 6

Time (min)T

orqu

e (d

N-m

) NGDP

Standard

177 C 9 MgO

0

5

10

15

20

25

30

35

0 1 2 3 4

Time (min)

Tor

que

(dN

-m)

177 C

VTX-7604

VTR-9129

6 Ca(OH)2, 3 MgO

Standard

NGDP

0

5

10

15

20

25

30

35

0 1 2 3 4

Time (min)

Tor

que

(dN

-m)

177 C

VTX-7604

VTR-9129

6 Ca(OH)2, 3 MgO

Standard

NGDP

15

BenefitsBenefits• Lower accelerator levels reduce gas generation that can lead to dieseling or voids -> higher quality parts -> less scrap• Reduced gas generation also permits higher mold temperature for faster cycles

Lab data confirms: Faster Cure Rates for NGDP Lab data confirms: Faster Cure Rates for NGDP PrecompoundsPrecompounds

NGDP gums cure faster than current standard Viton®

Example: 70 Mooney NDGP precompound made with VTX-7620 gum has similar cure rate as A-601C with 12 % lessaccelerator!

16

Lab Data Demonstrates:Lab Data Demonstrates:Operating FlexibilityOperating Flexibility Provides Increased Productivity Provides Increased Productivity ……

0

2

4

6

8

10

12

14

16

NGDP 1.1 phrprocess aid

NGDP 0.9 phrprocess aid

NGDP 0.7 phrproces aid

NGDP 0.5 phrprocess aid

Standard 1.1phr process

aid

Inje

ctio

n tim

e -

seco

nds

40 cavity D-214 O-ring, injection molding

• Injection time to fill in a 40 cavity D-214 o-ring mold• Even wih 45 % process aids of the standard Viton®, NGDP flow is better• Less process aids for better end use properties with no processing compromise• With lower levels of process aids, NGDP flows better than standard Viton®…..

17

…… AND Improved PerformanceAND Improved Performance

• … for further better compression set & less surface defects like welding lines

Compression set of injection moulded D-214 o-rings (200 °C / 70 Hr)

10

15

20

25

30

35

40

45

No Post Cure Post Cure 1 Hr /230 °C

Post Cure 4 Hrs /230 °C

Post Cure 16 Hrs /230 °C

% c

ompr

essi

on s

et

NGDP - 0.5 phrprocess aid

NGDP - 0.7 phrprocess aid

NGDP - 0.9 phrprocess aid

NGDP - 1.1 phrprocess aid

Standard - 1.1 phrprocess aid

• NGDP allows shorter post cure times to develop the same compression set of standard Viton® post cured with much longer cycles

18

…… while maintaining excellent release propertieswhile maintaining excellent release properties

0

20

40

60

80

100

0 10 20 30 40 50 60 70 80 90Shot #

% r

elea

se Self releasing

Manual release1.1

NGDP0.9

NGDP0.7

NGDP0.5

NGDP1.1Std

19

% of self release at steady state

80

82

84

86

88

90

92

94

96

NGDP 1.10phr

NGDP, 0.90phr

NGDP, 0.70phr

NGDP, 0.50phr

Standard,1.10 phr

% s

elf r

elea

se

20

NGDP: Improved PerformanceNGDP: Improved PerformanceThrough Excellent Compression SetThrough Excellent Compression Set

Benefits:Benefits:• Option for short post cure cycle resulting in faster production cycles • High quality sealing• Meet demanding end users specifications

30-35 Mooney injection molding stocks 40-60 Mooney c ompression molding stocks

Compression set, O-rings, 336 hr @ 200°C

21

24

27

30

33

36

39

A401C control A601C control NGDP VTX-7621

% C

omp

set

.

4 hr hr @ 250°C postcure16 hr @ 232°C postcure

Compression set @ 200°C, O-rings

1520253035404550

VTR-9160 NGDPblend

NGDPblend2

VTR-9180

% c

omp

set

.

70 hr @ 200°C336 hr @ 200°C

16 hr PC @ 232°C

• 336 hr comp set of low Mooney NGDP blend with process aids is improved –10% better than current VTR-9160 & VTR-9180• High Mooney NGDP comp set best in class. Low C/S with 4 hr PC

21

NGDP: Improved PerformanceNGDP: Improved PerformanceThrough Excellent Sealing PropertyThrough Excellent Sealing Property

22

NGDP: Lab Data Confirms Good Low Temperature NGDP: Lab Data Confirms Good Low Temperature Performance Performance

Benefits:Benefits:• Equivalent or slightly better low temperature sealing

• NGDP does not compromise low temperature Glass Transition (Tg) and TR-10 properties. Same to slight improvement

Low temperature properties

-18.0-17.8

-17.6-17.4-17.2-17.0

-16.8-16.6-16.4

-16.2-16.0

A-401C A-601C NGDP,VTX-7620

NGDP,VTX-7619

A-201C

°C

Tg, 4 hr PCTR-10, 4 hr PC

23

• NGDP O-ring precompounds are formulated like standard 66%F bisphenol curable FKM – like Viton®A201C run as a control in the table to the left

• NGDP shows similar tensile and elongation to A201C

• Physicals & compression set are good with a short 4 hr postcure and optimal with a 16 hr PC

• Fluids resistance to 7700 fluid is similar to A201C

NGDP: Lab Data Confirms Good Physical PropertiesNGDP: Lab Data Confirms Good Physical PropertiesStand.

Descr. VTR-7621 VTR-7622 VTX-7624A201C control

Viton® A 601C - - - -VTR-7621 100 - - -VTR-7622 - 100 - -VTX-7624 - - 100 -Viton® A 201C - - - 100ELASTOMAG 170 3 3 3 3N990 30 30 30 30Ca(OH)2 HP-XL 6 6 6 6

Physical Properties @ R.T. - Original (Cure 7' @ 177°C, Postcure 4 hrs @ 250°C)M-25, MPa 2.0 2.1 1.9 2.3M-100, MPa 6.4 5.2 5.1 6.3Tensile, MPa 14.2 13.4 13.1 14.3Elongation , % 218 231 216 215

Hardness, A, pts 75 80 74 76

Physical Properties @ R.T. - Original (Cure 7' @ 177°C, Postcure 16 hrs @ 232°C)M-25, MPa 2.2 2.3 2.0 2.2M-100, MPa 6.6 5.6 5.2 6.0Tensile, MPa 14.8 13.5 12.9 13.3Elongation , % 220 231 214 208

Hardness, A, pts 76 80 79 75

Compression Set , Method B , O-Rings70 Hrs @ 200°C- PC, 4 hr @ 250°C 14 17 15 17- PC, 16 hr @ 232°C 13 12 15 15

Volume swell - % increase , 7700 Fluid , 70 hr @ 200°C , %- PC1, 4 hr @ 250°C 16.2 16.9 17.7 16.6- PC2, 16 hr @ 232°C 16.0 17.0 17.1 16.6

NGDP precompounds

VTR-7261, 7622,

7624 data sheet

24

Product Offer Product Offer -- NGDP AvailabilityNGDP Availability

• VTX-7619 & 7620 gums available now• Can be compounded with VC50/VC30

• Can be blended with precompounds

• precompounds forming NGDP triangle available• 60 Mooney – standard cure rate VTR-7621

• 20 Mooney – standard cure rate VTR-7622

• 20 Mooney – slower cure rate VTX-7624

• Other precompounds developed• 35 Mooney oil seal precompound (for bonded parts) – VTX-7625

• Sampling quantities available in 2Q 2010

25

Key Messages for NGDPKey Messages for NGDP

• increased productivity

• shorter injection molding fill times

• faster cure rates leading to shorter cycle times

• Shorter post cure times

• Lower process aid levels leading to higher quality yield (fewer parts with defects like flowmarks or knitlines)

• enhanced part performance

• through better compression set resistance

• additional flexibility with available gums and precompounds

• through blend options within in the precompound tria ngle to develop customized formulas for specific applications

26

The information set forth herein is furnished free of charge and is based on technical data that DuPont believes to be reliable and falls within the normal range of properties. It is intended for use by persons having technical skill, at their own discretion and risk. This data should not be used to establish specification limits nor used alone as the basis of design. Handling precaution information is given with the understanding that those using it will satisfy themselves that their particular conditions of use present no health or safety hazards. Since conditions of product use and disposal are outside our control, we make no warranties, express or implied, and assume no liability in connection with any use of this information. As with any product, evaluation under end-use conditions prior to specification is essential. Nothing herein is to be taken as a license to operate or a recommendation to infringe on patents.

Caution: Do not use in medical applications involving permanent implantation in the human body. For other medical applications, discuss with your DuPont customer service representative and read Medical Caution Statement H-50103-3.

Copyright© 2010 DuPont™. The DuPont Oval logo, DuPont™, The miracles of science™, DuPont™ Viton® are registered trademarks of E.I. du Pont de Nemours or its affiliates. All rights reserved.

27