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Wacker to Reveal Non Alkylphenol Ethoxylates VINNAPAS® EAF 68 Polymer Dispersion at ECS 2011

Published on 2011-02-10. Author : SpecialChem

MUNICH -- VINNAPAS® EAF 68 polymer dispersion and GENIOSIL® N hybrid sealants & adhesives will feature prominently among the products that Munich-based chemical company WACKER will unveil for the adhesives and sealants industry at the European Coatings Show (ECS) 2011. VINNAPAS® EAF 68 stands for a new generation of all-round, high-performance binders that are made without the assistance of alkylphenol ethoxylates (APEOs). Boasting excellent technical properties and an outstanding price-performance ratio, the dispersion is ideal for hard-to-bond floor coverings, such as linoleum and polyvinyl chloride (PVC). With WACKER's hybrid technology, rapid-curing one-component GENIOSIL® N adhesives and sealants have become feasible. The range of applications stretches from highly flexible, paintable sealants through to high-tensile-strength assembly adhesives. The ECS takes place in Nuremberg from March 29 to 31, 2011. (Booth 417, Hall 9)

For the adhesives and sealants sector, WACKER will premiere its VINNAPAS® EAF 68, an aqueous dispersion based on the monomers vinyl acetate, ethylene and acrylate. There were two fundamental reasons for this new development. On one hand, the market is looking increasingly for flooring adhesives with a low content of volatile organic compounds (VOCs). On the other, the use of alkylphenol ethoxylates (APEOs) in the manufacture of adhesives is increasingly being restricted.

The task was to eliminate APEO-containing substances while matching or even exceeding the quality and performance characteristics of existing binders - such as VINNAPAS® EAF 60, which has been a standard in dispersions for flooring adhesives for 30 years.

WACKER rose to the challenge by developing VINNAPAS® EAF 68. This new dispersion features excellent technical properties, such as high cohesion, good heat resistance, and excellent transfer to backings. At the same time, it improves the dimensional stability of bonded flexible floor coverings. The new dispersion also exhibits good adhesion to various substrates, a good open time and an excellent price/performance ratio compared to alternative technologies such as acrylates.

Dispersion VINNAPAS® EAF 68 thus makes an ideal all-round product for hard-to-bond floor coverings, ranging from linoleum and polyvinyl chloride (PVC) to carpets.

Due to its fine balance of adhesion and cohesion, the product also acts as an adhesion promoter, so that it can be added to VINNAPAS® VAE-based adhesives for paper and packaging applications.

GENIOSIL® STP-E - Hybrid Adhesives with Turbo Power

The future belongs to adhesives offering the combination of strength and elasticity needed for a broad range of challenging applications. WACKER has developed its innovative GENIOSIL® STP-E technology especially for this class of adhesives. They are based on alpha-silanes that exhibit extremely high reactivity. This can be exploited to produce completely novel, fast-curing, one-component adhesives and sealants. The α-effect even permits the formulation of tin-free systems - representing a technological leap in user safety. Adhesives formulated with GENIOSIL® STP-E possess outstanding mechanical properties. They do not require labeling, formulations being free of plasticizers and solvents. GENIOSIL® STP-E is used in numerous sophisticated adhesive formulations, e.g. in the automotive sector, in container construction and for bonding parquet floors.

WACKER also uses GENIOSIL® STP-E prepolymers for the formulation of a new range of adhesives and sealants called GENIOSIL® N. The product line includes a large selection of ready-formulated products. These range from highly elastic sealants (GENIOSIL® N25 and GENIOSIL® N35) to the mirror adhesive GENIOSIL® N45, to the high-strength, plasticizer-free adhesive GENIOSIL® N70. WACKER's crystal-clear sealant GENIOSIL® N35C is indispensible for interior applications such as furniture and cabinet construction, especially when the adhesive joint shouldn't be visible.


WACKER POLYMERS is a leading producer of state-of-the-art binders and polymer additives based on polyvinyl acetate and vinyl acetate copolymers in the form of dispersible polymer powders, dispersions, solid resins and solutions. These products are used by companies in the construction, paints and coatings, adhesives, paper and nonwovens industries, as well as by manufacturers of fiber composites and polymer materials based on renewable resources. WACKER POLYMERS has production sites in Germany, China, South Korea and the USA, as well as a global sales network and technical centers in all major regions.

Source: WACKER

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