PPG Patents Decorative Coating
with Homogeneous Hue
U.S. 8,178,160 B2
PPG Industries has been granted a patent
for a method for preparing a decorative
and durable coating having a homogeneous hue comprised of dry-blend mixing
a first powder coating composition having
a first hue and a second powder coating
composition having a second hue different
than the first hue to form a heterogeneous
association of the first powder coating and
the second powder coating; and directly
applying the heterogeneous association
of the first powder coating composition
and the second powder coating composition to at least a portion of a substrate,
wherein the first powder coating and/or the
second powder coating is comprised of a
particulate film-forming resin and polymer-enclosed color-imparting nanoparticles,
the color-imparting nanoparticles having
average particle size of 300 nanometers or
less, wherein the particulate film-forming
resin is comprised of an epoxy functional
resin, wherein the polymer-enclosed color-imparting nanoparticles are enclosed by
a polymer different from the particulate
film-forming resin, wherein the polymer-enclosed color-imparting nanoparticles
comprised of a polymer comprised of
the reaction product of an ethylenically
unsaturated water-dispersible polymerizable dispersant, and an ethylenically
unsaturated monomer, and wherein the
water-dispersible polymerizable dispersant
comprised of a polymer selected from the
group consisting of polyurethane polymers,
polyester polymers, polyether polymers, sil-icon-based polymers, co-polymers thereof
and mixtures thereof.
Bostik Patents High-Styrene
SBS Hot Melt Adhesive
U.S. 8,163,824 B2
Bostik, Inc. has been granted a patent for a hot
melt adhesive comprised of a blend of 5%-
40% weight of a styrene-butadiene-styrene
block copolymer, the styrene-butadiene-styrene block copolymer is a substantially linear
styrene-butadiene-styrene block copolymer
having a styrene content of 38%-50% by
weight and 0% diblock, and a melt flow index of 3 g/10 min to 11 g/10 min at 190°
C with a 5 kg weight, and a polydispersity
of 1.01-1.30, and has a weight average molecular weight of 100,000 or higher; 2%-
30% weight of an endblock resin wherein
the end-block resin has a softening point of
from 100˚ to 160° C; 20%-70% of a tackifier; 0%-25% weight of a compatible non-functionalized block copolymer 0%-30%
weight of an oil; and 0%-4% weight of an
antioxidant; wherein the tackifier is present
in an amount greater than the block copolymer and wherein the components total
100% by weight of the composition so that
the adhesive has a viscosity less than 10,000
cP at 325° F and a cold flow value equal to
or greater than 70% at 49° C after 48 hours.
Functional Surface Coating
U.S. 8,178,602 B2
Accelr8 Technology Corp. has been granted a patent for a packaged formulation for
preparing functionalized surface coatings
having low non-specific binding characteristics suitable for application to a substrate
comprised of an effective amount of active
component, an effective amount of a cross-linking component and an effective amount
of matrix forming component, whereby
the three components form an integrally
enmeshed matrix that provides a functionalized surface having low non-specific
binding characteristics; and instructions
to apply the components onto a substrate
surface.
BASF Patents Electrocoat
U.S. 8,192,603 B2
BASF Coatings GmbH has been granted a
patent for an aqueous coating composition
comprised of a metal oxide selected from
the group consisting of bismuth oxide, vanadium oxide, manganese oxide, cobalt
oxide, zinc oxide, strontium oxide, yttrium
oxide, molybdenum oxide, zirconium oxide, lanthanum oxide, oxides of the lanthanide series of elements and combinations
thereof and an electrodepositable binder,
the binder is comprised of resin(s) comprised of a phosphorous-containing group
in which X is a hydrogen, a monovalent
hydrocarbon or an oxygen atom having a
single covalent bond to the phosphorous
atom, and each oxygen atom has a covalent
bond to a hydrogen atom, an alkyl group,
an aryl group, an alkylaryl group, an ary-lalkyl group, or the resin or one of the resins, with the caveat that at least one oxygen
atom has a covalent bond to the resin or
one of the resins; a carboxylate group separated by from 2-4 carbons from an ester
group; and a tridentate amine ligand.
DuPont Patents High Solids
Coatings
U.S. 8,197,905 B2
E I du Pont de Nemours and Co. has been
granted a patent for a process which is comprised of applying a solvent-based coating
having a low content of VOCs of 2.1 lbs/
gal and below on a substrate to obtain a
clear coating layer of a multi-layer coating, the solvent-based coating is comprised
of a binder component and a crosslinking
component, wherein the binder component is comprised of at least one hydroxy-functional polyether having at least two
secondary hydroxyl groups per molecule,
a number average molecular weight Mn in
the range of 200-5,000 and a polydispersity
of <2, the polyether is obtained from at least
one polyol having at least three hydroxyl
groups and at least one monoglycidyl ester
of a branched monocarboxylic acid, having
5 carbon atoms in the molecule, and the
crosslinking component is comprised of at
least one cross-linking agent which is capable of entering into a crosslinking reaction
with the hydroxyl groups of the hydroxy-functional polyether, the binder component consists of 80%-100% by weight of
the one hydroxy-functional 0%-20% by
weight of at least one additional hydroxyl-functional binder that is different from the
hydroxyl-functional polyether and curing
the multi-layer coating. CW
