AT Plastics, the basic polymers business of Celanese, is a leading North American
manufacturer of a full range of EVA Copolymers. AT Plastics offers a complete line of low density polyethylene and specialty, ethylene vinyl acetate
(EVA) resins and compounds. Our products, marketed under the Ateva® trade name, are used in many applications including flexible
packaging, lamination products, hot melt adhesive, medical tubing and automotive parts.
Ateva®
- Copolymers
for Coating and Laminating Applications
AT Plastics has set the industry standard
for LDPE and EVA resins for extrusion coating and laminating. AT Plastics autoclave reactors produce
resins with excellent processability and very low neck-in properties. State-of-the-art automated gel
detection equipment is used to ensure the lowest possible level of gel within resins. - Copolymers
Hot Melt Applications
EVA's are the most widely used polymers for hot melt adhesives,
finding applications in labeling, case and carton closing, laminating, bookbinding and the vast area
of product assembly including glue sticks. - COPOLYMERS Medical Applications
Ateva®
EVA copolymers with 7% to 15% VA content are used extensively for the production of corrugated hose
for medical applications. Uses range from disposable hose for anesthesia purposes to ventilator hose
for assisted breathing over longer periods. - Cap Liner Applications
Ateva®
EVA copolymers with 9% to 18% VA and 3 to 10 MI are used in liners for metal or plastic caps of PET
bottles containing water or carbonated drinks. Our customers compound Ateva® with proprietary ingredients
for these applications. The compound is either extruded into sheeting and the liners stamped, or the
liners are compression molded in-situ. - Automotive Applications
Ateva®
EVA and LDPE polymers are finding increased use in the automotive applications in carpet backing and
noise reduction. Ateva® EVA and LDPE polymers are used to precoat the back of carpets to lock the fiber
tufts to the scrim. For this application, usually high MI EVA (VA content of 18%) or LDPE polymers are
chosen, with good balance between the adhesive and cohesive strength of the polymer. To improve wear,
a higher MI helps penetration of the melt through the carpet fibers, and higher adhesion is achieved
by increased VA content.
