Toyochem Co., Ltd., a member of the Toyo Ink Group of Japan, announced today that it has developed a new
Cyabine series of polyurethane
pressure-sensitive adhesives (PSAs) with
a ultra-high solids content of 99% or more. The new adhesive composition
achieves the same performance levels as conventional solvent-based PSAs, while
reducing solvent and volatile content to minimal
levels. They are suitable for use in a wide range of industrial applications such as protective films.
In recent years, countries
around the world have been taking urgent action
to mitigate climate change and its impact. This is also true in the field of adhesives, where much research is being
conducted in the area of renewable
materials derived from bio-based polymers. While petroleum solvents had been extensively used in adhesive systems of
the past, there has been a growing call to
reduce or eliminate the solvent content
as a countermeasure to address environmental concerns.
To meet the demand for lower
VOC-emitting products, Toyochem has been gradually
building on its lineup of high-solids content adhesive compositions with high levels of non-volatile content.
The new PSA product announced today was
the outcome of new technological developments
in synthesis and crosslinking methods developed by it. These advances allowed the company to engineer a
new high solids system that contributes
to reduced CO2 gases during coating and drying
processes, for a safer, more environmentally sound work environment.
Typically, the more solids
that an adhesive mixture contains, the higher
its viscosity is, making it more difficult to coat. To resolve this issue, Toyochem researchers applied its original
polymer and crosslink design technology
to control chemical reactivity in the development
of a new formulation with low viscosity and high solids content while maintaining performance standards. In
addition, a unique synthesis method was
introduced, making it possible to keep solvent content down to very low levels. These new developments enabled it to achieve near-100% solids formulations that
exhibit excellent transparency,
reworkability and air release properties on a par with conventional pressure-sensitive adhesives.
Cyabine ultra-high solids
polyurethane PSAs are currently available in Japan with a worldwide release to follow in the next few years. With
an ever-growing portfolio of biodegradable,
bio-based and water-based adhesive
products, Toyochem will continually work to create innovative solutions that help to reduce the environmental load
on society.
www.toyo-chem.com/en/ / schd.toyoinkgroup.com/en/
