EN (PDF | 5.6 MB) - Wacker Chemie

vAE – ThE TEChNOLOGY dEfINING
TOdAY ANd ShApING TOMORROW
WACKER developed VAE technology
in the mid-60s and began industrial
scale production in 1966. Today,
WACKER still pioneers the technology’s
development and is responsible
for one of the largest share of global
VAE production.
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The High-Performance Choice
Vinyl acetate-ethylene (VAE) technology is
increasingly replacing other technologies
due to the continuous refinement of its
core benefits, which include high adhesion,
broad formulation flexibility, high
setting speed and excellent cost-in-use.
Recent developments in the VINNAPAS ®
range have extended its applicability
beyond the traditional paper and packaging,
wood working, flooring and construction
markets to new markets, such as
pressure-sensitive labeling and automotive
adhesives.
The VINNAPAS ® range offers a broad
selection of products to enable adhesives
manufacturers to formulate the right balance
of cost and performance for their
end-customer’s adhesive application.
Designed with Market-Leading Insight
Due to their copolymer composition, vinyl
acetate-ethylene copolymer dispersions
enable the formulation of adhesives with
low migration potential and reduce or
avoid the need for a film-forming agent.
VINNAPAS ® dispersions are stabilized
with colloid systems and/or surfactant
systems. The most common colloid
system used in adhesive applications is
poly(vinyl alcohol), a large water-soluble
molecule. It provides the optimum
rheology for a wide range of adhesive
applications, e.g. paper and packaging
applications.
Surfactant stabilized dispersions typically
show higher shear thinning than PVOH
stabilized dispersions. Their advantages
include better adhesion to plastics,
clearer films, higher water resistance
and good spray ability.
Superior Properties Enabling
Long-Lasting Adhesives
VINNAPAS ® VAE dispersions feature an
excellent adhesion and cohesion balance
as well as high degrees of wet tack. In
addition, they bond to a wide variety of
substrates. Specific VINNAPAS ® products
also offer the advantage of being suitable
for both roller applications and the nozzle
technology that is replacing the roller
technology in many markets.
Environmental and Health Impact
All of our VINNAPAS ® dispersions for
the adhesives market are water-based,
and produced without organic solvents
or plasticizers. Furthermore, APEO
surfactants are not used as stabilizers
in the adhesive dispersion range. These
characteristics put them in line with evertightening
consumer health legislation,
especially for food packaging, – in this
sector, the migration of constituents from
packaging materials into food is under
intense scrutiny.