Orevac® T reactive vinyl acetate Terpolymers Clever Solution to Boost Adhesion

August 2019

Orevac® T reactive resins are used as an adhesion promoter in films or hot melt formulations for adhesion enhancement. These ethylene vinyl acetate maleic anhydride terpolymers allow bonding on many substrates, such as PA, PET, PP, ABS, PU, PE, metallic foils, textile, fiberglass, artificial leather, wood and natural fibers, non-woven, foam, etc.

Thermo-adhesive film applications

Films containing Orevac® T resins help improving adhesion in many applications.

Automotive Industry: assembling of door panels, seats and roofing (bonding of textile substrate in seat covers and headliners), carpets, soundproofing and heat insulation materials.

Sport & Leisure: skis, sails, shoes (textile upper, liner, adhesion midsole/upper)

Furniture: decorative films, mattresses, seats, wall covering (bonding of foams on woven and nonwoven).

Recommended grades:

Orevac® T 9318

Orevac® T 9304

Hot melt adhesive applications

Orevac® T reactive Terpolymer improve adhesion on difficult substrates. They enhance bonding where classical polyolefin-based hot melt adhesives suffer from a lack of adhesion onto non-porous and polar surfaces. Significant improvement is achieved on glass, metal foil, ABS, PP, etc.

Orevac® T resins are formulated with EVA copolymers, waxes, tackifying resins, plasticizers and fillers as standard HMA.

To optimize performance and cost, Orevac® T terpolymers are combined with Evatane® copolymers (at about 5-10%).

Recommended grades:

Orevac® T 9304

Orevac® T 9305

For polyurethane hot melt (HMPU), the maleic anhydride group in the Orevac T backbone reacts with isocyanate. For this reason, Orevac T product range is the polymer of choice to improve green strength and global adhesion performance of HMPU.