At the heart of better plastics

Reasons to buy

• Wide ranging effects

• Technical expertise• Internal and external lubricants

Speciality additives for PVC

External additivesExternal additives provide metal release and particulate flow properties in the melt. External additives work at the metal / polymer surface interface to reduce friction to enable the polymer to slide. They are active in both the melt phase and the solid phase and can help deliver :

l Lower friction between the melt and processing surfacel Improved mold releasel Reduced adhesion of resin

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Internal additivesInternal additives are designed to be highly compatible with the PVC polymer matrix, helping reduce friction from within the melt. They are active in the molten phase and can help deliver :

l Lower melt viscosityl Improved flowl Better mold fillingl Reduced energy consumption

Speciality additives for PVCCroda offers a comprehensive range of internal and external additives to improve the properties of PVC and other polymers. As well as being high performance lubricants, the range of additives from Croda can also be used effectively as dispersion aids for pigments, anti-static and anti- fogging additives and speciality plasticisers in various systems.

An additive can be classed as either an internal or external lubricant each providing different characteristics during polymer processing. Choosing an additive depends upon the polymer formulation, processing technique and final application. Dosing levels are usually between 0.5% and 2% inclusion and can be added directly to the resin or via a suitable masterbatch. This is dependent upon the formulation, final application and effect required.

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Lubrication / Mold ReleaseVirgin PVC generates high frictional heat during processing which can lead to stability problems and poor performance. Choosing a PVC lubricant from the range below will help improve flow by lowering melt viscosity and reducing friction between the melt and machine surfaces.

As well as improving polymer performance, our products are designed to optimise processes by improving flow and aiding mold release. Choosing the right additive for your polymer can improve your polymer process.

Key Benefitsl Increased output efficiencyl Minimised machine wearl Reduced energy consumptionl Consistent mold releasel Improved surface finishl Less rejects and waste

*Only available in Asia† Only available in USA‡ Vegetable grade also available

Trade name Chemical description

Physical form at 25°C

Raw material origin

Internal/ External

Primary effect

Recommended use

AtmerTM 121 Glycerol ester Liquid Non-vegetable Internal Friction reduction,dispersion aid

Effective internal additive particularly useful in plasticised PVC film providing good flow, surface finish and clarity. Can also improve dispersion of pigments and fillers

Atmer 1006* Glycerol ester Liquid Vegetable Internal

Atmer 1010† Glycerol ester Paste Vegetable Internal

Atmer 1440 Glycerol ester Paste Non-vegetable Internal

CithrolTM EGDS Ethylene glycol distearate

Pastille Vegetable Internal/ External

Friction reduction

Use in rigid PVC extrusion and molding and can be used in clear applications

CrodamideTM EBS‡ Ethylene bis stearamide

Powder/microbead

Non-vegetable External Friction reduction

Use in molding and extrusion as a process lubricant in opaque applications. Excellent thermal stability

Crodamide ER Erucamide Powder/microbead/ bead/pastille

Vegetable External Friction reduction

Useful for plasticised films and molding applications

Crodamide OR‡ Oleamide Powder/microbead/pastille

Non-vegetable Internal Friction reduction

Useful for plasticized films and molding applications

Crodamide SR‡ Stearamide Powder/bead Non-vegetable Internal Friction reduction

Useful for plasticized films and molding applications

CrodamolTM BS Butyl stearate Liquid Vegetable/ synthetic

Internal Friction reduction

Useful in clear extrusion molding and can be used as a secondary plasticiser in PVC plastisols and as an effective dispersion aid for pigments and fillers

Stearyl stearate 3138

Stearyl stearate

Pastille Vegetable Internal/ External

Friction reduction

Excellent general purpose lubricant which enhances flow properties and improves surface finish

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Anti-staticPVC is a good insulator and has the ability to support high static charge. The Atmer range of anti-static additives can be added to the polymer in the melt phase or via masterbatch to give anti-static benefits during processing and handling.

Key Benefitsl Decreased static build-up in the polymerl Decreased attraction of dust, leading to superior quality and appearance of the partl Reduced risk of electric shock to employees and consumers

UV ProtectionIn sheet, film and bottle packaging, the unique patented technology of the SolasorbTM range provides superior dispersion and UV protection. Unlike the commonly used organic UV absorbers, the stable metal oxide dispersions are proven to deliver low migration and permanent UV protection.

The use of Solasorb can aid colour dispersion and preserve colour intensity over time, helping to maintain a constant colour of an article even after prolonged exposure to sun light.

Key Benefitsl Superior UV absorption and colour protection when compared to metal oxide powdersl Reduced re-agglomeration due to stable optimised dispersionl UV absorption in the same order as organic UV absorbersl Permanent, non-migratory and non-degrading

Control Atmer 129 Atmer 154

Figure 1: Anti-static effect of Atmer 129 and Atmer 154 in flexible PVC at 3 phr

Trade name Chemical description

Physical form at 25°C

Raw material origin Recommended use

Atmer 129 Glycerol ester Microbead Vegetable Anti-static additive for flexible PVC

Atmer 154 Alkoxylated fatty acid ester

Liquid Vegetable Internal anti-static additive for flexible PVC

Atmer 190 Alkyl sulphonate Pastille Synthetic Anti-static additive for non-transparent, rigid PVC

Trade name Chemical description

Physical form at 25°C

Raw material origin

Recommended use

Solasorb UV 100 TiO2 dispersion White liquid Inorganic mineral Absorbance in the 240 - 360 nm range

Solasorb UV 200 ZnO dispersion White liquid Inorganic mineral Wide ranging UV absorbance

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Anti-FogThe Atmer range of anti-fog additives work by migration to the polymer surface allowing condensed water droplets to spread into a continuous and uniform transparent layer on the film. The range includes additives for both food wrap and agricultural films.

Food Wrapl Improved transparency of the packaging and durability of the contentsl Improved presentation of food and customer appeal

Agricultural filmsl Improved light transmission resulting in higher plant growth ratesl Reduced burning of plants and crop spoilagel Reduced water dripping

* Only available in USA† Only available in Asia

Trade name Chemical description

Physical form at 25°C

Raw material origin

Recommended use

Atmer 103 Sorbitan ester Microbead Vegetable

Non-vegetable*

Recommended for use in agricultural films

Atmer 121 Glycerol ester Liquid Non-vegetable Recommended for use in food wrap

Atmer 645* Proprietary blend Liquid Vegetable/Synthetic Recommended for use in food wrap

Atmer 674* Proprietary blend Liquid Vegetable/Synthetic Recommended for use in food wrap

Atmer 1006† Glycerol ester Liquid Vegetable Recommended for use in food wrap

Atmer 1010 Glycerol ester Paste Vegetable Cling in food wrap, used in conjunction with Atmer 116

Trade name Chemical description

Physical form at 25°C

Raw material origin

Recommended use

Atmer 103 Sorbitan ester Microbead Vegetable

Non-vegetable*

Recommended for use in agricultural films

Atmer 121 Glycerol ester Liquid Non-vegetable Recommended for use in food wrap

Atmer 645* Proprietary blend Liquid Vegetable/Synthetic Recommended for use in food wrap

Atmer 674* Proprietary blend Liquid Vegetable/Synthetic Recommended for use in food wrap

Atmer 1006† Glycerol ester Liquid Vegetable Recommended for use in food wrap

Atmer 1010 Glycerol ester Paste Vegetable Cling in food wrap, used in conjunction with Atmer 116

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PlasticisersCroda’s range of speciality plasticisers work by solvating the PVC molecules, reducing intermolecular forces resulting in improved flexibility in the solid phase.

Monomeric Plasticisersl Low temperature flexibilityl Low viscosityl Phthalate free

Polymeric plasticisersl Low extractability (water, solvent, oil and detergent)l Low volatilityl Low migration

Trade name Chemical description

Physical form at 25°C

Raw material origin Recommended use

SyncroflexTM 3019 Di-fatty acid ester Liquid Vegetable/Synthetic Cables, gaskets, upholstery

Syncroflex 3114 Polyadipate ester Liquid Vegetable/Synthetic Coated fabrics, food wrapping, surgical tapes

Syncroflex 3142 Polyazelate ester Liquid Vegetable/Synthetic Flexible pipes, conveyor belts, oil resistant applications

Syncroflex 3155 Polyadipate ester Liquid Vegetable/Synthetic Electrical tapes, inks, roofing films

Syncroflex 3157 Polyadipate ester Liquid Vegetable/Synthetic Electrical tapes, protective clothing, crash pads

Syncroflex 3159 Polyadipate ester Liquid Vegetable/Synthetic Can coating, conveyor belts, crash pads, NBR

ATBC Citrate ester Liquid Synthetic Food contact applications including plasticised PVC

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Syncroflex delivers coated fabrics for oilfield protective clothing

Croda were approached by a customer looking for a plasticiser to use in coated fabrics in oilfield protective clothing.The customer had experienced problems with traditional phthalates migrating out of the fabric when in contact with oils causing the fabric coating to crack dramatically, which reduced the working life of the clothing.

From the table below the customer was able to identify Syncroflex 3155 and Syncroflex 3114 as the products with the best oil extraction resistance. As a secondary parameter the customer also stated that they would like good detergent resistance, as the items of clothing could come into contact with them during cleaning. Again using the table they were able to differentiate between Syncroflex 3155 and 3114 based on detergent extraction with Syncroflex 3155 showing improved detergent extraction resistance when compared to Syncroflex 3114.

udy St Ca se

Product Brittle point (°C)

Volatillity (%) Detergent extraction (%)

Mineral oil extraction (%)

Soybean oil extraction (%)

Petrol extraction (%)

Dyn. viscosity (cP)

DOP -29 -10 -6.1 -8.1 -12.2 -20 -

Syncroflex 3114

-22 -1.1 -7.5 -1.8 -1.9 -1.9 3000-3500

Syncroflex 3142

-23 -0.9 -1.4 -7.1 -0.3 -0.6 35000-45000

Syncroflex 3155

-16 -2.1 -2.4 -0.1 -2.6 -5 8500-10500

Syncroflex 3157

-20 -1.6 -4.6 -3.8 -1.1 -1.5 4200-5000

Syncroflex 3159

-21 -1.3 -5.4 -4.9 -0.7 -0.5 35000-45000

Excellent Moderate Fair

Product Brittle point (°C)

Volatillity (%) Detergent extraction (%)

Mineral oil extraction (%)

Soybean oil extraction (%)

Petrol extraction (%)

Dyn. viscosity (cP)

DOP -29 -10 -6.1 -8.1 -12.2 -20 -

Syncroflex 3114

-22 -1.1 -7.5 -1.8 -1.9 -1.9 3000-3500

Syncroflex 3142

-23 -0.9 -1.4 -7.1 -0.3 -0.6 35000-45000

Syncroflex 3155

-16 -2.1 -2.4 -0.1 -2.6 -5 8500-10500

Syncroflex 3157

-20 -1.6 -4.6 -3.8 -1.1 -1.5 4200-5000

Syncroflex 3159

-21 -1.3 -5.4 -4.9 -0.7 -0.5 35000-45000

Non-warranty:The information in this publication is believed to be accurate and is given in good faith, but no representation or warranty as to its completeness or accuracy is made. Suggestions for uses or applications are only opinions. Users are responsible for determining the suitability of these products for their own particular purpose. No representation or warranty, expressed or implied, is made with respect to information or products including, without limitation, warranties of merchantability, fitness for a particular purpose, non-infringement of any third party patent or other intellectual property rights including, without limit, copyright, trademark and designs. Any trademarks identified herein are trademarks of the Croda group of companies. ©2014 Croda Europe Ltd 09/14 PAMB015v01

Croda Europe LtdTel +44 (0)1405 860551pa-europe@croda.com

Croda SingaporeTel +65 65519600 pa-asia@croda.com

Croda BrasilTel +55 19 3765 3500 marketinglatam@croda.com

Croda Inc, USATel +1 732 417 0800pa-northamerica@croda.com

Further information

Croda sales and distribution are coordinated through an extensive worldwide network of associates and agents. For details of your local representative please contact your nearest Croda regional office.

Visit our global website at www.crodapolymeradditives.com