Patents Update
Rohm and Haas patents traffic paint
Patent No. U.S. 7,235,595 B2
Rohm and Haas has been granted a
patent for an aqueous traffic paint comprised of hard-soft polymer particles
comprised of pendant acid-functional
groups; wherein each of the hard-soft
polymer particles comprise, based on
weight of the hard-soft polymer particles, from 65-95% weight of a soft polymer having a glass transition temperature in the range of from - 40-20°C, and
from 5-35% weight of a hard polymer
having a glass transition temperature
of at least 40°C, wherein the hard-soft
polymer particles have a Hansch
parameter of at least 3; polyfunctional
amine; and an amount of volatile base
sufficient to raise the pH of the aqueous
traffic paint to a point where substantially all of the polyfunctional amine is
in a non-ionic state.
JDS UNIPHASE PATENTS
TITANIUM INTERFERENCE PIGMENT
Patent No. U.S. 7,235,300 B2
JDS Uniphase Corp. has been granted a patent for a plurality of color shifting pigment flakes, each flake is comprised of a first titanium nitride
absorber layer; a dielectric layer on the
first titanium nitride absorber layer;
and a second titanium nitride absorber
layer on the dielectric layer; the flake
exhibiting a discrete color shift such
that the flake has a first color at a first
angle of incident light or viewing and a
second color different from the first
color at a second angle of incident light
or viewing.
RADIATION-CURABLE ADHESIVE
Patent No. U.S. 7,238,732 B2
Eastman Chemical has been granted a patent for a radiation-curable
adhesive composition comprised of at
least one tackifier resin and at least one
radiation-curable composition wherein
the tackifier resin comprises monomer
repeating units from at least one aromatic monomer and at least one acrylate monomer; wherein the radiation-curable composition can be cured by
exposure to radiation, wherein the tackifier resin has a residual monomer concentration of less than 600 ppm by
weight based on the weight of the tackifier resin.
EFFECT PIGMENTS BASED
ON COATED GLASS FLAKES
Patent No. U.S. 7,226,503 B2
Merck Patent GmbH has obtained a
patent for an effect pigment comprised
of a glass flake with a thickness of <1.0
μm coated with one or more layers and
the softening point of the glass flake
being >800°C.
CORROSION-RESISTANT COATING
FOR METAL SUBSTRATE
Patent No. U.S. 7,229,700 B2
Innovation Services, Inc. has been
granted a patent for a composition comprised of a first nonionic nonylphenol
surfactant having an HLB value ranging from approximately 10-15; a second
nonionic nonylphenol surfactant having an HLB value ranging from approximately 16-20; optionally, a bio-film per-meation agent; and an aqueous solvent,
wherein a total of the first surfactant
and the second surfactant in the composition ranges from approximately 2-
20% by weight of a total weight of the
composition and a ratio of the second
surfactant to the first surfactant in the
composition ranges from 2:1-4:1.
CORROSION-RESISTANT COATING
FOR METAL SUBSTRATE
Patent No. U.S. 7,229,700 B2
BASF Catalysts has obtained a
patent for an aluminum or aluminum
alloy metal substrate coated by a high-velocity oxygen fuel thermal spray coating process with a corrosion- and wear-
resistant coating composition comprised of an aluminum-zinc alloy containing 0.1–10% weight zinc mixed
with a hard, inert matrix.
ABRASION RESISTANT COATING
FOR FIBER CEMENT SIDING
Patent No. U.S. 7,238,391 B2
Valspar has received a patent for a
method of making a fiberboard cement
siding product, comprised of providing a
fiberboard cement substrate, coating a
first major surface of the fiberboard
cement substrate with a sealer; coating
the exposed surface of the sealer with a
primer; coating the exposed surface of
the primer with a decorative coating;
coating the exposed surface of the decorative coating with a topcoat layer comprised of a polyurethane dispersion;
and curing the topcoat layer to provide
a mar and abrasion resistant coated
fiberboard cement siding product;
wherein the curing step comprises a
thermal curing process that does not
expose the siding to a board surface
temperature in excess of 100°C, wherein the fiberboard cement substrate has
a density of at least 1 g/cm3 and comprises wood pulp, silica and cement,
and the outer topcoat layer has a dry
thickness of at least 8 microns.
COATING STACK COMPRISING
A LAYER OF BARRIER COATING
Patent No. U.S. 7,232,615 B2
PPG Industries has obtained a
patent for a coating composition comprised of a functional coating comprised
of an inner layer and an outer layer; at
least one degradable layer located
between the inner layer and the outer
layer; and at least one layer of barrier
coating located between the inner layer
and the outer layer,wherein the barrier
coating has a permeability to oxygen no
greater than 10 grams per m2 per day
at a temperature of 900°F. CW
