| A series of VECTORŽ styrenic block copolymers (SBC)
are specifically designed for use in a wide range
of adhesive and sealant applications such as disposables
(assembly of baby diapers and training pants, adult
incontinent products, feminine care pads etc.),
tapes, labels, product assembly and construction
adhesives. The ability of the hard styrene endblocks
and soft elastomeric midblocks of these styrenic
block copolymers to phase separate over a wide end-use
temperature range makes them one of the key polymer
tools used to formulate hot melt adhesives.
VECTOR SBC's come in a variety of compositions
(isoprene or butadiene mid-block), styrene content
(14 to 45%), and molecular architecture (linear,
radial, tapered). In addition, Dexco Polymers
LP, was the first to commercialize linear SIS
and SBS triblocks, i.e., without residual SI or
SB diblock component typically present in competitor
coupling processes. Pure SIS and SBS triblocks
provide enhanced elasticity, cohesive strength,
and heat resistance required in more demanding
applications such as packaging tapes. Where the
presence of diblock brings desirable attributes,
such as easier die-cutting of paper or film label
laminates, it is made separately and volumetrically
added to the triblock prior to finishing.
The adhesive compounder will experience new formulating
flexibility not only with diblock-free VECTOR styrenic block copolymers but also with our unique
4-arm radial technology. These SBC's can achieve
performance specifications using less elastomer
by substituting lower-cost tackifier resins or
extender oils. In addition, the diblock-free triblocks
and 4-arm radial architecture can be used to develop
high-performance adhesive products that are not
achievable with lower strength SBC alternatives.
Coupling formulating flexibility with exceptional
color and molecular stability from Dexco Polymers
LP's precisely controlled processes provides to
the compounder an opportunity to develop adhesives
with competitive advantages.
For more information about this application please
contact :
Gary Dunn
(281) 870-6258 Work
(281) 588-4624 Fax
gary.w.dunn@exxonmobil.com
www.escorez.com
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