Applications of Celanese Ateva 1813 EVA in Industrial Manufacturing

As a high-performance ethylene vinyl acetate copolymer, Celanese Ateva 1813 EVA delivers specific material properties essential for demanding industrial sectors. The material supports advanced processing and strict end-use requirements across several certified downstream routes. Below, we detail key application scenarios, process parameters, and representative downstream products for this formulation.

1. Solar Photovoltaic Encapsulant Films

Solar manufacturers use Ateva 1813 EVA in encapsulant film production, leveraging its vinyl acetate content for strong adhesion, light transmittance, and crosslinking response. In this scenario, line control for gel content and shrinkage is critical. The material integrates during film extrusion, responding precisely to downstream lamination and curing windows required for reliable PV module sealing and environmental resistance.

Industry compliance standards

• IEC 61215 (Crystalline silicon terrestrial PV modules design qualification)
• UL 1703 (Standard for Safety: Flat-plate Photovoltaic Modules and Panels)
• RoHS Directive 2011/65/EU compliance
• ISO 9001:2015 (for manufacturing QC management)

Typical usage ratio

• 100% as single-layer encapsulant, or 60-95% in coextruded blends depending on project module design, with adjustments based on required crosslink degree and lamination throughput.

Downstream process integration

• Continuous sheet extrusion for film thickness control
• In-line dosing of crosslinking additives and UV stabilizers pre-extrusion
• Direct downstream lamination onto solar cells under heat/pressure
• Curing and stabilization within vacuum laminators

Final product types

• Mono and polycrystalline PV module encapsulant sheets
• Backsheet-protected solar cell laminates
• Bifacial panel encapsulants
• Flexible thin-film module support layers

2. Hot Melt Adhesive Formulations

Producers of hot melt adhesives value Ateva 1813 EVA’s consistent melt index and polarity for precise viscosity adjustment and open time control. The material enables strong substrate bonding, holding hot tack and flexibility in multi-substrate assembly settings. It enters directly into compounding, working with tackifiers and waxes for a balance between adhesion and processability, particularly in packaging and woodworking operations.

Industry compliance standards

• FDA 21 CFR 175.105 (Adhesives in indirect food contact)
• REACH Regulation (EC) No 1907/2006 compliance
• ISO 14001 (environmental management, adhesive factories)
• EN 923 (Adhesives - Terms and Definitions)

Typical usage ratio

• 20-48% in finished adhesive mass, varying with targeted open time, viscosity, and flexibility—modified based on softening point or peel strength requirements.

Downstream process integration

• Hopper loading for co-melting with resins and waxes
• On-line blending via Banbury mixers or Z-blade kneaders
• Hot-filtering before pelletizing, drum filling, or block casting
• Final adhesive is granulated or slabbed for further use

Final product types

• Hot melt packaging adhesives
• Bookbinding adhesives
• Automotive interior assembly glues
• Disposable hygiene article adhesives

3. Wire and Cable Insulation Compounds

Cable compounders use the material for sheathing and insulation, exploiting its dielectric stability and flexibility. The resin is compounded with stabilizers, antioxidants, and plasticizers—or co-crosslinked for higher durability—in cable jacketing lines. Process engineers maintain a balance between throughput, melt fracture control, and mechanical elongation to ensure compliance with electrical and safety regulations in telecom, automotive, and power line manufacturing.

Industry compliance standards

• UL 1581 (Electrical wires, cables, and flexible cords standard)
• IEC 60332 (Flame Retardant Tests on Electric Cables)
• RoHS and REACH for heavy metal content and phthalate limitations
• ISO 6722 (Road vehicles wire)

Typical usage ratio

• 30-70% in total compound, adjusted for jacket vs insulation layer; higher ratios provide enhanced flexibility, lower ratios optimize extrusion speed and process cost.

Downstream process integration

• Batch mixing with fire retardants, UV stabilizers, and processing oils
• Pelletizing for subsequent feeding
• High-speed extrusion over copper or aluminum conductors
• On-line curing for crosslinked cables where required

Final product types

• Low- and medium-voltage power cable sheathing
• Data communication cable insulation
• Automotive wiring harness insulation
• Audio/video cable jackets

4. Flexible Packaging Film and Laminate Layer

Converters in the flexible packaging industry use the copolymer as a core layer for food-safe pouches and medical packaging. Its clarity, impact strength, and thermal sealability support multilayer coextrusion or lamination. The resin forms a functional tie or bulk layer; process engineers adjust melt temperature and cooling speed for gauge uniformity and surface adhesion, while maintaining full regulatory traceability from incoming batch to final packaging rolls.

Industry compliance standards

• FDA 21 CFR 177.1350 (Ethylene-vinyl acetate copolymers contact with food)
• EU Regulation (EU) No 10/2011 (Plastics for food contact)
• BRCGS Packaging Materials Issue 6 (global standard for packaging QC)
• ISO 22000 (Food safety management for packaging suppliers)

Typical usage ratio

• 15-35% in coextruded films, adjusted for peel strength, clarity, and sealing requirements; ratios may shift for specialty medical or vacuum pouch constructions.

Downstream process integration

• Direct dosing into multi-zone blown film lines
• Coextrusion as adhesive, core, or sealing layer
• Heat lamination with oriented PET or PE layers
• Final conversion to pouches, lidding, or sterilizable wrappers

Final product types

• Food-grade pouch and bag films
• Medical device packaging films
• Easy-peel and reclosable film wraps
• Retort and freezer-stable multilayer bags

5. Foam Production for Footwear and Sporting Goods

The copolymer enables controlled closed-cell foam creation in midsole and pad manufacturing, delivering resilience and tear strength for footwear, floor mats, and sports equipment. Its flexibility window and processing response allow tunable hardness and rebound, with process engineers modifying blend ratios, foaming agents, and crosslinking systems according to final application load cycles and abrasion expectations.

Industry compliance standards

• ISO 20871 (Footwear - test methods for soles)
• EN 13602 (Footwear - monolithic materials assessments)
• REACH SVHC List compliance (limited chemical content)
• ISO 9001 (for in-plant QC and batch traceability)

Typical usage ratio

• 35-80% in foam formulations; varying by blend partner, required hardness, and target density. High ratios yield soft, resilient foams; lower ratios allow stiffer, abrasion-resistant foams.

Downstream process integration

• In-line blending with blowing agents, crosslinkers, and color masterbatches
• Continuous or batch foam extrusion and sheet molding
• Compression or injection molding for final shaping
• Post-foaming curing and die cutting to dimensional tolerances

Final product types

• Shoe midsoles and sock liners
• Sporting goods padding and mats
• Shock-absorbing playfloor tiles
• Yoga and exercise mats