Behr Patents Exterior Paint
U.S. 8,236,885 B2
Behr Process Corporation has been granted a patent for a process for producing a
paint composition comprised of the steps
of dispersing a titanium dioxide pigment
particles in a solvent to form a dispersion;
mixing the dispersion with grind additives and metal oxide nanoparticles having an average particle size of less than
100 nanometers; adding a first acrylic
primer binder consisting of a 100%
acrylic resin and a second acrylic topcoat
binder consisting of a 100% acrylic resin
to the dispersion; and adding letdown
additives to the dispersion, wherein the
resulting composition includes a PVC of
approximately; 4 to 55 and a percentage
of solid by weight of between 30 and 55;
wherein the ratio of the first acrylic primer binder to the second acrylic topcoat
binder is 80: 20.
Valspar Patents Coating for
Metal Substrates
U.S. 8,231,951 B2
Valspar Sourcing, Inc. has been granted
a patent for a coating composition comprised of a blend of two or more polyester resins each formed by the reaction of
one or more polyacid molecules and one
or more polyol molecules, wherein the
blend has between approximately 60%-
90% weight polyester resin having a Tg
less than 25° C and between 10%-40%
weight polyester resin having a Tg greater
than 50° C and a carrier; wherein the
coating composition is a liquid composition that is substantially free of mobile
BPA and aromatic glycidyl ether compounds and is suitable for use in forming
a food contact packaging coating.
BASF Coatings Japan
Patents Paint
U.S. 8,236,895 B2
BASF Coatings Japan Ltd. has been
awarded a patent for a paint composition
comprised of a hydroxyl group containing resin comprised of a hydroxyl group
July 2013
value of from 80 to 220 mg KOH/g, a
glass transition temperature of − 50° C or
above but below 0° C, and from 25 to
55 mass percent of units of 4-hydroxy-
butyl (meth)acrylate origin, a hydroxyl
group containing resin comprised of a
hydroxyl group value of from 80 to 220
mg KOH/g, and a glass transition temperature of from 0 to 50° C and a crosslinking agent comprised of a polyisocyanate
compound having isocyanate groups,
wherein the proportions of hydroxyl
group containing resin and hydroxyl
group containing resin are, as a ratio of
solid fraction masses, from 95/5 to 50/50,
and the proportion of isocyanate groups
of the crosslinking agent with respect to
the hydroxyl groups in total of the hydroxyl group containing resin and the
hydroxyl group containing resin, as the
NCO/OH mol ratio, is from 0.5 to 1.5.
DuPont Patents Coating
Composition
U.S. 8,227,050 B1
E I du Pont de Nemours and Company
has obtained a patent for a coating composition, which upon cure forms a coating. The composition is comprised of Ia
component A comprised in the range of
0.01%-10% of one or more monomers;
a component B comprised in the range of
5%-50% of one or more multifunctional
oligomers; a component C comprised in
the range of 10%-70% of one or more
pigments, fillers or a combination thereof;
a component D comprised in the range of
0.5%-15% of one or more photoinitia-tors; and a component E comprised in the
range of 21%-40% of volatile organic
solvent, wherein all of the percentages
are in weight percent based on the total
weight of the composition; and wherein,
the cured coating composition is free
from any sticky, uncured material.
Sensient Patents Self-
Dispersed Pigments
U.S. 8,226,761 B2
www.coatingsworld.com
Sensient Colors LLC has been granted
a method of modifying a pigment. The
method is comprised of attaching a reactive group X—Y to a surface of a pigment; and subsequently displacing Y with
an organic substrate N—S—ZM to form
a surface-modified pigment having attached X—N—S—ZM; wherein X is a
sulfonyl, phosphoryl, or 1, 3,5-triazine
group; Y is fluorine, chlorine, bromine or
iodine; N is an amine, an imine, a pyridine, or a thiol group; S is substituted or
unsubstituted alkyls, aryls, or polymer
chains having a molecular weight range
from approximately 300-8000; Z is a
carboxyl, sulfonyl, phenolic, phosphoryl,
ammonium, trimethylammonium, or tri-butylammonium group; and M is a halide, a negatively charged ion, a proton in
salt form, or a cation in salt form.
Si Chem Patents Paint with
Silicate Resin
U.S. 8,211,220 B2
Si Chem Co. has obtained a patent for
a method for preventing corrosion of a
structure without influencing an electrical flow in the structure. The method
is comprised of applying a silicate urethane paint composition to the structure,
wherein the composition is comprised,
by weight: approximately 100 parts of
a urethane resin, 10 to approximately 20
parts of a silicate resin, 10-40 parts of a
silicone resin, 100-250 parts of a functional pigment wherein the functional the
pigment is comprised of 40-50 parts of
TiO2, 30-50 parts of Al2O3, 20-80 parts
of graphite, and 10-30 parts of crosslinkable polystyrene, and 1-2 parts of a functional additive comprising a dispersing
agent.
Taki Chemical Patents
Photocatalytic Titanium
Oxide Sol and Coating
U.S. 8,207,085 B2
Taki Chemical Co. has been granted
a patent for a photocatalytic coating
