facturers can now offer the pigment as
another option to brand managers and
designers to generate an effect similar to
the appearance of a rainbow flowing
over a liquid silver color, according to
the company. Proprietary processes from
JDSU were used to develop the SpectraFlair Plus 25 pigment that is comprised of thin flakes that are very
uniform in size. These unique material
characteristics allow the new pigment to
provide up to three times the hiding
power compared to products in JDSU’s
existing SpectraFlair line, reducing the
amount pigment required to coat a product and decreasing pigment costs up to
60 percent. Because of its low applied
cost, the pigment can be used to enhance
a wider range of consumer products. The
uniform property also increases the diffractive color of SpectraFlair Plus 25, delivering bright and dramatic effects both
indoors and outdoors under various
lighting conditions. The new pigment is
the first in a series of SpectraFlair Plus
pigments developed by JDSU that will
come out over the next year in a range
of flake sizes enabling designers to customize colors to achieve a desired effect.
Variants with smaller flake sizes will
provide a satiny finish whereas larger
flake sizes will create a more granular or
sparkly diamond-like finish. The entire
series will maintain a thin flake size to
ensure optimum hiding power and efficient applied costs.
Sachtleben launches
functionalized barium sulfate
powder coating
Sachtleben, the synthetic barium sulfates
specialist, has introduced for powder
coating producers a functionalized barium sulfate—Sachtoperse EP.
Sachtleben’s special barium sulfate particles are inert, and are less abrasive than
the extenders most frequently used, such
as calcium carbonate and ground quartz,
the company said. Their tailor-made surface modification improves the resistance of powder coating systems to
chemicals. The combination of the particles and the binder is achieved by
means of a complex organic surface
coating. Sachtoperse EP, the permanent
protecting ingredient for powder coating
systems, is currently undergoing its
global market launch.
Hydrite Advanced Resins
introduces new epoxy resins
Hydrite Advanced Resins, LLC (HAR) introduced two new epoxy resins for a wide
range of composites, coatings and adhesive applications at the recent 2011 Ther-moset Resin Formulators Association
(TRFA) annual meeting in Niagara Falls,
Canada. Two grades of Resorcinol Digly-cidyl Ether (RDGE), a difunctional aromatic resin, are now offered by HAR.
HAR 2120 has properties that are similar
to other commercial RDGE resins, including a relatively low viscosity (500-
1,000 cps), making it a good choice as a
reactive additive to reduce viscosity while
enhancing physical properties, the company said. HAR 2140 is a higher molecular weight RDGE with viscosity of
3,500-4,500 cps enabling the formulator
to use HAR 2140 in higher concentrations
or even as the sole resin system. In addition, unlike HAR 2120 and other commercial RDGE resins, HAR 2140 will not
crystallize in storage eliminating the need
for heated storage and/or melting ovens,
the company said.
Momentive introduces odor-free technology for UV curable
coatings
Momentive Performance Materials Inc.
has introduced a technology that offers
the use of odor-free UV curable release
coatings for sensitive applications where
odor may not be acceptable to end-users.
The new SilForce products can be considered for applications such as tapes on
disposable diapers and feminine hygiene
products. SilForce UV9880C photoinitiator is an odor-free catalyst, produced
without the use of organic solvents, for
use with Momentive’s SilForce low odor
UV curable polymers. In addition to
odor-free cure, typical performance properties include: low temperature cure typically needed for thermally sensitive
paper and film substrates; rapid photocure in ambient atmosphere; general
compatibility with medium pressure mercury vapor UV lamps; high reactivity;
and cationic type photocure. SilForce UV9800 and SilForce
UV9815 silicone release polymers are new products offered
for use with SilForce UV9880C photoinitiator for odorless release coating
applications. When used with SilForce
UV9880C photoinitiator, the odor-free
polymers, also manufactured without organic solvents, can provide benefits, including: a rating of 1 on a 1 (none or
slight) to 5 (strong) scale used in independent odor panel testing; highly
crosslinked coating with minimal silicone
transfer; stable release from a wide range
of adhesives; lengthy catalyzed bath life
when stored in cool, dark conditions.
Croda launches Zephrym PD
4974 for iron oxide pigments
Croda has introduced Zephrym PD
4974, a low-VOC, high performance
polymeric dispersant specially designed
for iron oxide pigments. A key advantage
of Zephrym PD 4974 is its ability to provide formulation stability in systems containing iron oxide pigments said the
company. In one laboratory test, the
paint, comprised of 70 percent red iron
oxide pigment by weight, an aqueous
binder and two percent dispersant
Zephrym PD 4974 or competitive material, was compared for stability. The
paint containing the competitive material
separated after 120 hours ( 5 days) at
room temperature. The same paint formulated with Zephrym PD 4974 never
separated, even after 60 days of testing,
the company said. In addition to its ability to stabilize formulations, Zephrym
PD 4974 is able to enhance color development and reduce, or even eliminate,
the level of thickeners in the formulation.
Cytec launches Resydrol AY
6705 resin
Cytec Industries, Inc., has introduced
Resydrol AY 6705, a waterborne acrylic
modified alkyd resin with 44 percent
solid content that was designed to extend durability with its penetration for
timber substrates. It is ideal for feeding
and protecting exterior wood stains and
timber decking. CW
