Dow Polyurethanes, a business of The Dow Chemical Company has expanded their methylene
diphenyl diisocyante (MDI) product
family. As highly, versatile chemistry, the
expanded MDI offering provides customers the option of these products as
components or in fully formulated systems for opportunities in a wide range
of markets, the company stated. The
new products include VORAMER MN
2314 Prepolymer, PAPI 23 High Airflow
Isocyanate, VORASTAR 7000 Spray
Elastomer System and ISONATE 128
modified MDI.
The new products serve a diverse mix
of markets – from industrial and infra-
structure to consumer comfort:
•VORAMER MN 2314 Prepolymer is
a highly-processable, cost-effective poly-
urethane solution for formulating concrete
adhesives and sealants. Providing desir-
able processing and reactivity for use in
moisture-cure systems because of its low
viscosity, VORAMER MN Prepolymer
eliminates extra work and time associated
with stripping old coatings and provides
distinct advantages when compared to in-
cumbent products, including performance
in standing water, resistance to dirt pick up
and strong adhesion and paintability.
•PAPI 23 High Airflow Isocyanate is a
superior performing MDI for use in high-end viscoelastic foams for the bedding
industry, helping customers provide consumers with quality bedding to achieve a
cool sleep effect. PAPI 23 High Airflow
Isocyanate has high o,p’ content providing excellent processing, and enhanced
foam physical properties. Inherent to the
polymer’s molecular design, PAPI 23 enables good airflow in and out of the foam
cells to help consumers achieve a better
night’s rest.
•VORASTAR 7000 polyurethane
spray elastomer system is a novel prod-
uct designed for use in surface protec-
tion of porous concrete containment
structures and steel exposed to advanced
chemical attack. A high performance,
two-component polyurea hybrid coat-
ing material, infrastructure owners using
VORASTAR 7000 system can extend the
life of steel tanks, pipeline and chemical
holding tanks thus enabling lower total
cost of ownership. The low viscosity of
VORASTAR 7000 facilitates process-
ing and allows applicators to achieve a
smooth high gloss finish and fast return
to service, as well as a good balance of
strength and elongation, abrasion, and
wear and tear resistance due to its elas-
tomeric properties. The system performs
very well in low temperature environ-
ments and maintains its flexibility even
in temperatures down to negative 50 de-
grees Celsius.
•ISONATE 128 is a modified MDI of -
fering superior handling and storage stability. ISONATE 128 MDI was designed
to balance needs for ease of processing
without sacrificing excellent mechanical
properties in end use applications, like
elastomers. Also, the new ISONATE 128
enables less energy consumption required
for storage, providing customers the flexibility to manufacture products through
a longer period of the year without additional insulation during storage.
Union Process Manufactures
“Two Mills in One” for
Laboratory Use
Union Process, Inc. has manufactured
a combination laboratory mill that
offers the versatility of two mills in a
single footprint. For customers who
require the ability to process both fine
and coarse material and/or want to perform multiple-stage grinding, the Union
Process HD-01/HDDM-01 combination lab Attritor is the solution. Using a
single motor, frame and set of controls,
the customer can mill coarser material using larger grinding media (3mm
to 6mm) at lower agitator shaft speeds
(200-650 RPM) using the HD mode.
For submicron and nanometer range
target particle sizes, the mill can be op-
erated in HDDM mode which utilizes
smaller grinding media (0.25mm to
2mm) and higher agitator shaft speeds
(1500-3000 RPM).
The combination mill is available
with a choice of two drive systems--the
electronic variable frequency drive (
explosion-proof or non-explosion-proof)
or the mechanical variable speed drive
(explosion-proof). The HD-01/HDDM-
01 combination lab Attritor can be configured with metal-free contact parts
when necessary and is compatible with
the full line of HD-01 and HDDM-01
interchangeable parts and accessories to
maximize versatility.
Charles Ross & Son Co.
Introduces New Vertical
Cone Screw Blender/Dryers
Ross Vertical Blender/Dryers are ideal
for vacuum drying a wide range of applications in either solid or liquid state,
such as powders, granules, pellets, fibers,
pastes and slurries. This type of drying
equipment features a slow-turning auger screw that gently lifts batch materials upward as it orbits around a conical
vessel. Materials carried to the top of
batch then cascade slowly back down
into regions opposite the moving auger
screw. The constant exchange of materials between the heated sidewalls and
center of the blender accelerates the drying process.
A common issue in agitated dryers
is the risk of product attrition or generation of fines. This concern is well
minimized in a Vertical Blender/Dryer
because the blending action is thorough
but very low impact.
Available in many sizes from one
through 500 cu.ft., Ross Vertical Blender/
Dryers do not require a bottom support
bearing to keep the screw steady so discharge is virtually 100% complete. This
“unsupported screw” design also simpli-fies cleaning and maintenance. CW
Dow Unveils
MDI-based Products
