Pa tents Update
Rohm and Haas patents pigmented polymer
Patent No. U.S. 7,408,003 B2
Rohm and Haas has received a
patent for a polymer composition comprised of organic colorant particles; and
polymer particles comprised of polymerized units of phosphorus acid
monomer and having first phosphorus
acid groups, wherein: i) the polymer
particles are prepared by aqueous
emulsion polymerization of the phosphorus acid monomer at a pH of less
than 2, or ii) the polymer composition is
comprised of a level of water soluble
polymer having second phosphorus acid
groups defined by ratios of equivalents
of second phosphorus acid groups to
equivalents of first phosphorus acid
groups in the range of less than or
equal to 1.5, wherein each of the polymer particles are multistage polymer
particles comprised of a) a first polymer
comprised of a polymerized unit of a
multiethylenically unsaturated
monomer, polymerized units of the
phosphorus acid monomer, and the first
phosphorus acid groups, wherein the
first polymer has a glass transition
temperature in the range of from -60° C
to 35° C; and b) a second polymer having a glass transition temperature in
the range of from -60° C to 35° C,
wherein a weight percent of the first
phosphorus acid groups in the second
polymer, based on a weight of the second polymer, is 10% weight or less of a
weight percent of the first phosphorus
acid groups in the first polymer, based
on a weight of the first polymer and
wherein the average weight ratio of the
first polymer to the second polymer is
in the range of from 1:2 to 1: 20.
VALSPAR PATENTS
COATING COMPOSITION
Patent No. U.S. 7,390,858 B2
Valspar Sourcing, Inc. has obtained a
patent for a coating composition comprised of an epoxy-modified fatty acid
ester resin; an oxirane-functional
resin different from the epoxy-modified fatty acid ester resin; a carboxyl
functional polyester resin; and an
alkyl acid phosphate.
IMERYS PIGMENTS PATENTS
KAOLIN PRODUCTS
Patent No. U.S. 7,413,601 B2
Imerys Pigments has been granted a
patent for a particulate kaolin,wherein
the kaolin has a mean particle size
ranging from 0.9 μm to 2.5 μm, and a
shape factor of at least 60.
HONDA PATENTS WHITE
PEARLESCENT PAINT
Patent No. U.S. 7,404,987 B2
Honda Motor Company has been
granted a patent for a process for producing a pearlescent white finish on a
cured white primer surface of a substrate which process is comprisef of
spray coat applying an improved
pearlescent white paint composition
comprised of a film-former and a solids
material consisting of at least 90% w/w
non-coated mica, 4-7% w/w TiO , and
2
0.2-3.0% w/w particulate metallic aluminum, in effective whitening and hiding amounts to the cured white primer
surface of the substrate; and curing the
composition on the substrate to provide
a cured pearlescent white finish.
EFFECT PIGMENTS OF
UNIFORM SHAPE AND SIZE
Patent No. U.S. 7,396,401 B2
Merck Patent has received a patent
for an effect pigment of uniform shape
and size based on a flake-form, inorganic substrate comprised of inorganic
flake-form substrates which are uniform in shape and size and have a circular or elliptical shape or a polygon Vn
shape, where n=the number of corners
and n> 3, wherein the flake-form inorganic substrate is comprised of one or
more metal oxides, and on the substrate
one or more layers comprised of a metal
oxide, metal oxide hydrates, metal suboxides, metal, metal fluorides, metal
nitrides, metal oxynitrides or mixtures.
NON-TOXIC CORROSION-PROTECTION
CONVERSION COATS BASED
ON RARE EARTH ELEMENTS
Patent No. U.S. 7,407,711 B2
University of Dayton, Dayton, Ohio
has received a patent for solid corrosion-inhibiting conversion coating
formed on a substrate metal, the conversion coating is comprised of a rare
earth element and an inorganic
valence stabilizer combined to form a
rare earth/valence stabilizer complex
within the solid corrosion-inhibiting
conversion coating, wherein the rare
earth element is selected from cerium,
praseodymium, terbium, or a combination thereof, and at least one rare
earth element is in the tetravalent
oxidation state in the rare
earth/valence stabilizer complex in
the solid corrosion-inhibiting conversion coating.
RADIATION-CURABLE COATINGS
FOR METAL SUBSTRATES
Patent No. U.S. 7,407,707 B2
Ashland Licensing and Intellectual
Property LLC has been granted a
patent for a UV-curable Michael resin
comprised of the resinous Michael addition product of a β-dicarbonyl compound and a multifunctional
(meth)acrylate metallic monomer.
PPG PATENTS COATING
Patent No. U.S. 7,351,475 B2
PPG Industries has obtained a coating composition comprised of a film-forming resin, a radiation cure initiator,
a colorant, and a diluent, wherein the
coating composition is substantially
free of radiation curable material. CW
