U.S. 8,536,274 B2
BASF Coatings Japan Ltd. has been granted
a patent for a clear paint composition comprised of an acrylic copolymer comprised
from 35%-50% weight caprolactone structural units, based on the resin solid fraction,
a hydroxyl group number of from 200-340
mg KOH/g and a weight average molecular
weight of from 5,000-15,000, and a non-yellowing type polyisocyanate compound,
wherein the isocyanate group of the component is included in a proportion of from 0.5-
2 equivalents per one equivalent of hydroxyl
group of the component, and wherein the
paint composition is hardened solely by
baking, not hardening by ultraviolet radiation, such that the Young’s modulus of the
hardened paint film obtained from the paint
composition is not more than 1.5 GPa, the
molecular weight of intercrosslinking of the
cured coating film (Mc) is not more than
350 g/mol, and the glass transition temperature (Tg) of the hardened paint film is at
least 65° C.
Huntsman Patents Coating
System
U.S. 8,263,687 B2
Huntsman International LLC has been
granted a patent for a curable composi-
tion comprised of an epoxy resin contain-
ing on average more than one epoxy group
per molecule; and as curing agent, a hybrid
hardener; wherein the hybrid hardener is a
blend of an aminic compound selected from
the group consisting of aliphatic amines,
cycloaliphatic amines, araliphatic amines,
imidazoline group-containing amidoamines
based on mono- or polybasic acids, adducts
of said amines or amidoamines and glycidyl
compounds, and adducts of said amines
or amidoamines and cyclic carbonates,
wherein said aminic compound contains,
on average per molecule, at least two reac-
tive hydrogen atoms bound to nitrogen at-
oms; and a polyphenol novolac, wherein the
polyphenol novolac is present in an amount
of from 30%-45% by weight, based on
the total weight of the blend; wherein the
hybrid hardener is a liquid having a viscosity
lower than 20,000 mPa·s at a temperature
of 20± 5° C; and wherein the curable com-
position is a protective coating curable at
a temperature of from about − 5° C to ap-
proximately 50° C.
Peel-Off Coating
Composition
U.S. 8,263,231 B2
Cal-West Specialty Coatings, Inc. has obtained a patent for a composition for the
formation of a peelable protective coating
on a surface, the composition is comprised
of a liquid aqueous mixture or solution
comprised of a polyvinyl butyral film former; an extender; a zinc oxide; a surfactant;
and a thickener; wherein the mixture or solution does not include a polyurethane, and
wherein the coating formed by drying the
composition on a surface is removable by
mechanical peeling.
Coatex Patents Method for
Dispersing Alkyd Reins with
Associative Polymers
U.S. 8,263,699 B2
Coatex S.A.S. has been awarded a patent for a method comprised of blending
a polymer comprised of, in polymerized
form: (meth)acrylic acid, a (meth)acrylic
ester, and at least one hydrophobic monomer, with at least one alkyd resin and water to obtain a blend; adjusting the pH of
the blend to a value greater than six, to obtain a dispersion of the blend in the water;
and then) precipitating the dispersion by
adjusting the pH to a value less than six.
NanoSteel Patents
Protective Coatings for
Concrete Delivery Systems
U.S. 8,535,764 B2
The NanoSteel Company, Inc. has been
granted a patent for a method of coating a
concrete delivery component comprised of
providing a substrate comprised of alumi-
num, for a concrete delivery component hav-
ing a surface; providing a multi-component
alloy comprised of more than 50% by weight
Fe plus Cr, Mo, W, Mn, Si, B and C having
a critical cooling rate for metallic glass for-
mation of less than 105K/s and a melting
point in the range of 800° C-1,500° C; and
thermally depositing the multi-component
alloy onto at least a portion of the substrate
to form a protective coating, wherein the
protective coating includes Fe phases along
with combinations of carbides, oxides and
borides and is a metallic glass wherein at
least a portion of the alloy has a combina-
tion of structural association sizes according
to the following: (i) 5 to 100 Angstroms, (ii)
10 to 150 nm, and (iii) 150 nm to 1000 nm
wherein the size range of 150 nm to 1,000
nm is present at a level of at least 50% by
volume of the protective coating, the coat-
ing has a hardness of 64 to 80 Rockwell C,
and the interface between the substrate and
the multi-component alloy exhibits a bond
strength in the range of 5,000 to 10,000 psi.
USG Interiors Patents
Formaldehyle-Free Coating
for Panels
US 8,536,259 B2
USG Interiors, LLC has been awarded a
patent for a curable, formaldehyde-free
coating composition comprised of a composition comprised of a polyacid copolymer
comprised of at least two carboxylic acid
groups, anhydride groups, or salts thereof,
a hydroxyl group-containing compound
bearing at least two hydroxyl groups as an
independent compound or incorporated
into the polyacid copolymer backbone and
a phosphorus-containing catalyst; andncal-cium aluminosilicate powder having a total
alkali content of less than about 2% weight
based on the total weight of the calcium aluminosilicate powder, a median particle size
of approximately 250 microns or less and
a surface area from approximately 1 m2/g
to 3 m2/g, wherein the ratio of the number of equivalents of the carboxylic acid
groups, anhydride groups or salts thereof to
the number of equivalents of the hydroxyl
groups is from 1/0.01-1/3. CW
BASF Coatings Japan
Patents Paint Composition
