PPG patents undercoating layers providing
improved photoactive topcoat functionality
U.S. 8,133,599 B2
PPG Industries has received a patent for a
coated article comprised of a substrate; a
first coating formed over at least a portion
of the substrate, the first coating is comprised of a mixture of at least two oxides
selected from the group consisting of oxides
of P, Si, Ti, Al and Zr; and a photoactive
coating formed over at least a portion of the
first coating, wherein the first coating is a
multi-layer coating comprised of a first
layer comprised of phosphorous oxide, silica and titania, with silica present in the
range of 70%-80% volume; a second layer
comprised of phosphorous oxide, silica and
titania, with silica present in the range of
48%-62% volume; and a third layer comprised of phosphorous oxide, silica and titania, with silica present in the range of
70%-80% volume.
Valspar patents coating
compositions for cans
U.S. 8,142,868 B2
Valspar Sourcing has obtained a patent
for an article comprised of a body portion or an end portion of a food or beverage can comprised of a metal substrate;
and a coating composition disposed on
an inside surface thereon, wherein the
coating composition includes an emulsion polymerized latex polymer, and
wherein the emulsion polymerized latex
polymer is comprised of a reaction product of an ethylenically unsaturated
monomer component polymerized in the
presence of an aqueous dispersion of a
polyurethane resin.
HRD Corp. patents wax for
reducing mar and abrasion in
inks and coatings
U.S. 8,138,250 B2
H R D Corporation has been granted a
patent for an ink composition, com-
prised of between 20%-60% weight
percent of an acrylic resin dispersion;
between 5%-30% weight percent of a
pigment; between 20%-75% weight
percent of an aqueous solvent; and be-
tween 0.5% to 5% weight percent of a
hydrogenated, vegetable-derived wax,
the wax being characterized by an io-
dine value between 2 to 5, and wherein
the wax is a wax comprising 20% castor
wax and 80% soybean wax by weight.
Poly Coat patents paintable
primer system
U.S. 8,158,703 B2
Poly Coat Pty. Ltd. has been granted a
patent for a dispersion comprised of a thermoplastic cellulose polymer or a derivative
thereof, a phthalate ester of a C1-C6 alky-lated aromatic alcohol, an alkaline earth
metal salt of a C9-C20 aliphatic fatty acid,
a surfactant, a C1-C4 alkyl methacrylate
polymer and a solvent, wherein the dispersion adheres to a substrate selected from
the group consisting of a plastic, a metal
and a composite when applied to the substrate as part of a primer.
Verdezyne granted US patent for a biobased
adipic acid production process
Verdezyne, Inc., a privately-held industrial biotechnology company focused on producing renewable chemicals from non-petroleum sources, has been granted a United States Patent for a
bio-based adipic acid production process. U.S. Patent No.
8,241,879, titled"Biological Methods for Preparing Adipic Acid",
covers one of the company's proprietary processes for selectively
converting non-petroleum oils into adipic acid, a key component
used to manufacture sustainable nylon 6, 6, thermoplastic
polyurethane resins and coatings from renewable sources.
"Building on the patent we secured earlier this year on engineered microorganisms, this intellectual property protection
for our adipic acid production process is another strong milestone in our technology development program," said E.
William Radany, Ph.D., president and CEO of Verdezyne. "Our
feedstock-flexible approach is just one of many factors that
sets Verdezyne apart from other players in the renewable
chemicals landscape."
Verdezyne has designed its proprietary adipic acid process
specifically for the production of nylon 6, 6. The company be-
lieves its renewably sourced adipic acid will be cost-advan-
taged compared with standard adipic acid, as well as being
more environmentally-friendly.
28 | Coatings World
www.coatingsworld.com
September 2012