
AT Plastics is a customer-responsive, growth-oriented company. They are constantly striving to produce advanced, world class ethylene vinyl acetate (EVA) polymers for molding and extrusion applications.
AT Plastics has a proud history dating back to 1953, having led industry in the development of many new Polymers, Films, and unique Packaging products.
In 1994, AT Plastics became a public company and now AT Plastics Inc. is a wholly owned subsidiary of Celanese.
AT Plastics' polymer production facility in Edmonton has been registered by QMI to the ISO 9002 standard since 1987, and in 1998 this facility, along with their Brampton Technical Center, was registered by QMI to the ISO 9001 standard.
These leading edge facilities have helped AT Plastics create and produce some of the industry¡¯s outstanding new products, such as Ateva EVA copolymers ¨C the beginning of a whole new generation of copolymer products.
For more information, please visit www.atplas.com or contact us.


EVAs 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.
AT Polymers offers AtevaTM EVA copolymers with VA levels ranging from 18% to 40%. In 28% EVA copolymers alone, AT Polymers offers a choice of seven different grades. These differ principally in melt index, ranging from 3.0 to 850. They are also developing new high-flow grades, over 1000 in melt index grades are used to obtain high polymer content at low application viscosity. Intermediate melt index grades provide the ability to formulate to differing melt viscosities. The combination of a high and low melt index is frequently used to ¡°fine tune¡± the adhesive viscosity without changing the total polymer content.

AtevaTM EVA copolymers for Flexible Packaging are used in applications as a sealant layer, as an adhesive layer, for R-F seal ability, lamination, and as a tough puncture resistant film.
AT Plastics is very aware of the challenges that gels can cause in a high quality expensive products that must meet just-in-time shipping requirements. This is why they have invested significantly in modifying their production process and equipment to reduce the amount of gel in their EVA resins-even their 32% EVA copolymers. To ensure that they are delivering a quality product, they use state of the art electronic gel detection equipment with enormous computing power in each on-line monitoring and final product test station.
In the production of any polymer that may come in contact with food, there is always the concern that some of the residual monomers, and other raw materials used in the process, may still remain in the final product. For EVA, this is particularly important, since it is often used as a sealant layer in food packaging. This means the EVA comes in direct contact with the food and can quite easily affect the flavor. Through special process modification, they are able to ensure a lower residual content in the food contact layer made from their AtevaTM EVA copolymers

AtevaTM EVA copolymers with 9% to 28% VA content and 1.5 to 10 MI are widely used in cross-linked foam applications because they are easy to crosslink and the foams are light, soft, and highly resilient. Cross-linking the foam results in higher temperature, abrasion resistance and produces a more consistent foam, with small, uniform microcells. End-uses include sport equipment padding, flotation aids, midsoles for athletic shoes, outsoles for casual comfort shoes, golf cart and buggy wheels, and recreational floor matting. This wide range of application is attributable to EVA foams¡¯ low density, low compression set, good elastic recovery, and shock absorbing properties. Oil resistance of EVA shoe soles is superior to that of rubber or TPR soles, and the COF grip to a variety of substrates is excellent.

AtevaTM 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.
Hose is usually made by an extrusion blow molding process where an extruded molten tube passes through a corrugator, continuously forming shape by pressure or vacuum. AtevaTM is particularly suited for these applications due to its soft feel and draping characteristics, which improve with higher vinyl acetate content. Also, ease of fabrication, lack of migratory plasticizers, low toxicity, and no restrictions on incineration of EVA hospital waste lend to the increasing use of EVA in medical applications.
AT Plastics offers full regulatory support of our products. Many AtevaTM EVA copolymer grades are listed in FDA Device/Drug Master Files.
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