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HIGH MOLECULAR WEIGHT EXTENDER OILS IN TPE PERFORMANCE

Extra High MW Group II alternatives to standard Group II oils

TPE 2017

OUTLINE

• Introduction to Renkert Oil

• Standard Group II oils in TPEs

• Benefits over Group I

• Typical grades and applications

• New High MW, Low Volatility Oil Option

• Impact on SEBS properties

• Fogging benefits of Renoil 1500-LV

• Summary

TPE 2017

RENKERT OIL

• Founded 30 years ago to support the rubber process oil industry

• Expanded to support a wide range of industries with product expertise and logistics

• Rubber, plastics and TPEs

• Food and medical grade applications

• Base oil and lubrication

• Electrical insulating oils and specialties

• Focus on Americas and Europe using Group II and III water-white process oils

TPE 2017

EVOLUTION OF REFINING• Group I: Refining crude oil began with separation technologies – Distillation, wax chilling, solvent extraction to purify the desired paraffinic oils.

• Group II: Use of catalysts and high pressure hydrogen has allowed refiners to convert and reform the molecules so even poor crudes can be used and improved without wax and aromatics byproducts.

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40

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1985 1995 2005 2015 2025

1000 barrels per day

Year

US Process Oil Capacity 1988-2020

Group I kbpd Group II kbpd

66% Group II

GROUP II OILS IN THE TPE MARKET

• Advantages of Group II process oils have been embraced for specific applications

• Automotive interiors meeting Fogging tests

• Color stability and color match

• Especially for white and lighter colors

• Clean, nontoxic and environmentally safe also available

in USP / European Pharmacopeia grades

• Supply security as Group I plants close

TPE 2017

RANGE OF GROUP II PROCESS OILS

TPE 2017

Standard Grades

New High MW

Low Volatility

Low Fogging

Car interiorsToys,

shoe solesTools, mats

GROUP II CLEAR PROCESS OILS COMPARED

Oil

MWAverage

Carbon Number

Viscosity @ 100 C cSt

Viscosity @ 100F SUS

Flash Point F (C)

ParaLux 6001Lot 160315 528 38 12.0 538 530(277)

Renoil 1500-LVLot 170509 680 48 24.1 1483 543(284)

TPE 2017

Simulated

Distillation

ParaLux = Blue

Renoil–LV = Red

SEBS 65 SHORE A TEST

• Produced three samples based on a standard SEBS compound:

• PolyPropylene

• Hydrogenated Styrene/Butadiene Copolymer

• Antioxidant package

• Extender Oil

• A base sample with zero extender oil

• Standard ParaLux 6001 low fogging oil

• New High MW Renoil 1500-LV extender oil

Testing for Fogging to separate any polymer influence

TPE 2017

TPE 2017

Automotive Fogging Results

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100

500 600 700 800 900 1000 1100

Fogging SEBS with different oils

1 hr 16hr -photometric 100-grav final

No Oil

Renoil 1500-LV

ParaLux 6001

Molecular Weight

Fogging %

TPE 2017

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0 10 20 30 40 50 60

Tensile Strength psi

540

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0 10 20 30 40 50 60

Elongation at break %

Elongation at break Linear (Elongation at break)Extender Oil %

RESULTS OF OIL STUDY

• Higher Molecular Weight Process Oil performs better in Fogging (Photometric)

• Base polymer is a small component of fogging (0.8%)

• Standard ParaLux Oil adds about 7.8%

• Renoil 1500-LV reduces this impact by almost half to 4.4%

• Gravimetric fogging results show similar 43% reduction when using High Molecular Weight Extender Oil.

• Equal weight percent of the higher viscosity/MW oil gave similar Shore A hardness, but slightly more high MW oil may be utilized.

• 50% ParaLux 6001 66 Shore A

• 50% Renoil 1500-LV 69 Shore A

• 0% extender oil 97 Shore A

TPE 2017

SUMMARYThe global supply of process oils is changing with advanced refining replacing Group I

• Group II process oils

• Are available worldwide

• Have been embraced in TPEs especially colors

• ParaLux 6001 meets current fogging requirements

• Renoil 1500-LV high MW clear process oil

• Performs significantly better in automotive fogging

providing some flexibility with polymer choice

• Similar to volatility, the expected mobility of the

higher MW oil is much lower

TPE 2017

TPE 2017

Mark Proudfoot, PE

Managing Director Renkert Oil Europe

VP Technology Renkert Oil (US)

Worldwide Distributor Chevron Process Oils