Chemical Engineering September 2016 - 33

Lanxess
Oligomer resin proves worthy
of 3-D inject printing systems
Bomar BR-970H is a stain-resistant
oligomer with high modulus, making
it ideal for 2-D and 3-D inkjet printing
applications and graphic art applications
(photo; p. 28). As a low-viscosity,
di-functional, aliphatic urethane
acrylate, BR-970H offers rapid cure
and non-yellowing properties for
higher optical clarity and color stability.
Its relatively low shrinkage (0.7%)
during curing makes it ideal for 3-D
printing
applications
where good
mechanical properties and aesthetics
are expected, says the company.
It also provides low water absorption
(0.15), making it perfectly suitable
for applications where 3-D printed
parts are exposed to high-humidity
environments or washed with waterbased
solutions. - Dymax, Torrington,
Conn.
www.dynamax.com
G. Otto Gehrckens
SGL Graphite
Three glass-fiber-reinforced
polymers are 'food-safe'
Ryton polyphenylene sulfide (PPS)
compounds combine long-term heat
resistance with excellent dimensional
stability, very low moisture absorption,
strong chemical resistance
and inherent flame retardancy, says
the manufacturer. Three new Ryton
PPS products are now available for
use in food-and-beverage applications.
Two of them (Ryton R-4-242
and Ryton R-7-232 PPS) are entirely
new products; the third (Ryton
R-4-232 PPS) is a previously available
product that is now approved
for food-contact applications. These
food-safe resins provide suitable alternatives
to metal and thermosets
in many applications, says the company.
They comply with U.S. Food
and Drug Administration NSF51 requirements,
as well as the European
Union's EU 10/2011 regulations for
use as a component material intended
for use in food-contact applications.
- Solvay Specialty Polymers,
Alpharetta, Ga.
www.solvayspecialtypolymers.
com
This thermoplastic blend is
ideal for complex geometries
Thermplastics with good melt-flow
characteristics facilitate the design
of large, thin-walled components of
complex geometry (photo). Pocan
C3230 XF (XtremeFlow) is a blend of
34
polybutyleneterephthalate and polycarbonate
(PBT/PC), reinforced with
30% glass fibers. This material can
be used to produce precision components
that can be subjected to
high mechanical loads, and experience
low warpage and good dimensional
stability, says the company.
The material displays roughly 40%
better flow than a comparable standard
PBT/PC blend reinforced with
30% glass fibers. This material has
a tensile modulus of 7,500 MPa and
a tensile strength nearly 100 MPa.
These performance advantages result,
in part, from the ability to uniformly
distribute the compound's
glass fibers, even in areas with a very
low wall thickness, says the company.
- Lanxess AG, Cologne, Germany
www.lanxess.com
Seal
material remains flexible
at extremely low temperatures
This company's temperature-flexible
Vi 840 FKM fluoroelastomer compound
allows
precision
O-rings
(photo)
and elastomer seals to be
manufactured to provides sustained
low-temperature flexibility. It maintains
low-temperature flexibility
to
-40°C, and conforms to the DIN EN
14141 standard. And with a TR-10
value of -40.1°C, this performance
compound is suitable for use at
temperatures down to -46°C, fulfilling
API 6A and 6D standards, says
the company. - G. Otto Gehrckens
GmbH, Pinneberg, Germany
www.cog.de
Resin-impregnated resin helps
to produce rugged parts
The synthetic resin-impregnated
Diabon NS2 graphite (photo) is available
for pressure equipment that
experiences temperatures up to
220°C, such as heat exchangers,
columns, quenchers, syntheses,
systems and related components.
This product uses a special posttreatment
process, which maintains
the outstanding thermal conductivity
and complete impregnability of the
components, enabling the resin-impregnated
proportion to be reduced
from 20% to approximately 12%.
The reduces corrosion and helps to
maintain a stable structure. - SGL
Group, Wiesbaden, Germany
www.sglgroup.com
n
Suzanne Shelley
CHEMICAL ENGINEERING WWW.CHEMENGONLINE.COM
SEPTEMBER 2016
http://www.lanxess.com http://www.dynamax.com http://www.cog.de http://www.solvayspecialtypolymers http://www.sglgroup.com http://WWW.CHEMENGONLINE.COM
Chemical Engineering September 2016

Table of Contents for the Digital Edition of Chemical Engineering September 2016
