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Spherilex 60 AB was developed for blown and cast film produced from polyolefins and polyesters

Spherilex 60 AB was developed for blown and cast film produced from polyolefins and polyesters



Evonik unveils 2 new antiblocking agents

Spherilex 30 AB and Spherilex 60 AB are specialty precipitated silica, which has attractive properties for antiblocking application of polymer films

July 2019

Evonik, one of the world leaders in specialty chemicals, has introduced two new grades of precipitated silica for use as antiblocking agents: Spherilex 60 AB and Spherilex 30 AB.

Antiblocking agents are essential additives in the production of plastic films. These additives help facilitate film winding operations and improve the handling properties of films during subsequent processing.

Both Spherilex grades are produced using a new, patented manufacturing process that simultaneously allows spherical particle shape, controlled particle size, and narrow particle size distribution to be achieved. Spherilex 60 AB was developed for standard films based on PE and PP, whereas Spherilex 30 AB is specially designed for very thin films such as biaxially oriented films.

Spherilex 30 AB is specially designed for very thin films such as biaxially oriented film applications

Spherilex 30 AB is specially designed for very thin films such as biaxially oriented film applications

This combination of product properties mentioned above enables the application as a highly efficient antiblocking agent in blown and cast films including polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET), and polyamide (PA).

Evonik is one of the world’s leading manufacturers of silica. In addition to the fumed silica Aerosil and the precipitated silica Ultrasil, Sipernat, Zeodent and Spherilex, Evonik also produces silica-based matting agents under the brand name Acematt and other fumed metal oxides under the brand Aeroxide. Overall, Evonik has a global production capacity for all silica based products of about 1 million metric tonnes per year.

“We are happy to announce the official launch of two new products for the plastics industry: Spherilex 30 AB and Spherilex 60 AB. Spherilex 30 AB and Spherilex 60 AB is a specialty precipitated silica, which has attractive properties for antiblocking application of polymer films” said Mohan Konar, senior business manager for Silica, Evonik Middle East and Africa.

“As shown in antiblocking testing, its spherical particle morphology and uniform particle size distribution provides optimal clarity and antiblocking efficiency in plastic films. Based on its low absorptivity it performs also excellent in combination with slip agents. High masterbatch loadings are possible due to its easy incorporation and dispersion during thermoplastic compounding process” Konar added. 

Evonik is active in over 100 countries around the world. In fiscal 2018, the enterprise with more than 32,000 employees generated sales of €13.3 billion and an operating profit (adjusted EBITDA) of €2.15 billion from continuing operations.

The Resource Efficiency segment is led by Evonik Resource Efficiency and produces high performance materials and specialty additives for environmentally friendly as well as energy-efficient systems to the automotive, paints and coatings, adhesives, construction, and many other industries. This segment employed about 10,000 employees, and generated sales of around €5.5 billion in 2018 from continuing operations.




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