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ELVALOY™ - Copolymers

Solving your problems, one modification at a time

ELVALOY™ Copolymer Alloys enhance the characteristics of other resins, making them more durable, flexible, and longer-lasting. DOW uses their super power to save the day in:

• Ready-to-eat meal packaging

• Asphalt paving

• Cable jacketing

• Roofing membranes

• PVC and other plastics modification

Don’t spill your food

Brand owners want consistent drop-impact toughness in dual ovenable trays. ELVALOY™ is a premium impact modifier that, when combined with ELVALOY™ AC or similar resins, provides the desired level of low-temperature PET toughness in refrigerated and frozen meals. For CPET converters, ELVALOY™:

• Lowers processing costs

• Improves efficiency by maximising regrind utilisation

• Allows the use of cheaper, lower viscosity PET resins

Paving the way to better performance

No one wants to be stuck in road construction. That’s why Dow offers ELVALOY™ Reactive Elastomeric Terpolymers (RET) for polymer modified asphalt to build longer-lasting and higher load-carrying roads. ELVALOY™ RET:

• Supplied as free-flowing pellets that melt into hot asphalt

• Creates a permanently modified asphaltic (bitumen) binder

• Remains easy-to-use but delivers improved long-term resilience and climate resistance

• Locks itself in during a fluid-stage reaction

• Stays homogenous with good aggregate coating and adhesion performance

Stay warm and dry through all the weather conditions

There’s nothing like a leaky roof when you least expect it. ELVALOY™ Ketone Ethylene Ester (KEE) terpolymer delivers longer service life in demanding environments when used in durable low-slope PVC roofing membranes to avoid that leaky roof. When soft, high-molecular-weight ELVALOY™ KEE is mixed with a more rigid material such as PVC, the resulting compound becomes:

• Tougher and more flexible

• Ideal for coating onto woven fabrics or scrim materials

• Embedded in high-quality PVC roofing membranes to help fight against cutting, punctures or shrinkage

• Easier to heat-weld during installation and repair

As a solid-phase flexibiliser, ELVALOY™ KEE won't migrate out of the PVC roofing system, even when exposed to chemical pollutants such as grease or fuels. Chemicals such as these tend to extract many other plasticisers, causing membranes to lose flexibility and become brittle. The permanent flexibility and chemical resistance of roofing membranes made with ELVALOY™ KEE makes them a proven performance leader in single-ply PVC roofing.

PVC roofing membranes made with ELVALOY™ KEE are among the most:

• Durable

• Fastest to install

• Easiest to maintain in the industry

Roofers experienced with thermoplastic membranes enjoy the reliable heat-welded seams and carefree performance of a strong, high-quality roofing product. Building owners who want their PVC roofing to last as long as possible, or who need extra resistance to weather and chemical attack, can specify PVC roofing made with ELVALOY™ KEE to assure decades of problem-free service.

Benefits of PVC roofing made with ELVALOY™ KEE:

• Labour-saving installation

• Strong, heat-welded seams

• Easy tie-ins

• Easy cut-outs or repairs

• Outstanding chemical resistance

• Enables light coloured and cool roofing

Let’s modify your PVC

ELVALOY™ is a flexible polymer that is highly miscible with PVC during the PVC compounding stage. This makes it a useful PVC plasticiser. Because it is a high-molecular-weight, solids-phase (non-liquid) PVC plasticiser, ELVALOY™ adds permanent flexibility to the PVC compound, enabling higher-value use in more demanding applications. PVC plasticiser extraction issues, from PVC weathering or exposure to chemicals, can be reduced by using a polymer such as ELVALOY™ that locks itself into the flexibilised compound. ELVALOY™ performance helps increase the compound’s acceptance of other performance additives such as:

• Flame retardants

• Fillers

• Stabilisers

Skip the trash. Recycle your PET and PET/HDPE

Consider using an impact modifier for recycled PET (RPET) resins, or a compatibiliser for blends of RPET and HDPE. ELVALOY™, either alone or combined with ELVALOY™ AC or other acrylates, improves the mechanical and impact properties of the modified materials. It also:

• Maximises regrind utilisation

• Allows the use of lower viscosity RPET resins

• Helps lower processing costs

• Improves efficiency

General Information

The value proposition of Elvaloy™ AC is universal compatibility with most polymers for use as a modifier and in adhesive applications. Elvaloy™ AC is the best choice when you are looking for properties like:

• Softness

• Flexibility

• Polarity

• Impact resistance

Elvaloy™ AC is a random copolymer of ethylene and various acrylate monomers which ensure specific properties:

• EMA for higher thermal stability

• EEA for less sticking to metal surfaces

• EBA for low temperature flexibility

Unique features of Elvaloy™ AC include:

• Good compatibility with both polar and non-polar polymers (PA, PET, PBT, PC, ABS, PP, PE, PVC)

• Higher melting temperature (avoid sticking in compounding feed)

• Superior thermal stability (vs. EVA)

• Higher melt strength

• Low temperature flexibility of EBA

• Oil resistance

• HF weldable (for > 9wt% comonomer level)

• Printable - high surface energy

Typical packaging applications for Elvaloy™ AC:

• Improves low temperature toughness of PET

• CPET trays: Elvaloy™ AC 1224 or 1124, Elvaloy™ PTW or 4170

• APET trays (only used in coloured trays): Elvaloy™ AC 1224

• Blends are always opaque

• Comply with Food Regulations (FDA, European) – Up to 24 % wt. MA

• Ability to use high scrap content

Elvaloy™ AC Soft Touch Applications

• Cosmetic bottles: Elvaloy™ 1209AC, Elvaloy™ 1224AC, Elvaloy™ 3217AC

• Tubes, Soft touch sleeves for bottles

• Elvaloy™ AC to improve ink adhesion to corona treated PE films