Sherwin-Williams patents metal coating
US 8,084,137 B2
The Sherwin-Williams Company has been
awarded a patent for a coating composition comprised of a phosphate functional
polyester polyol, which is the esterification
reaction product of a monomer blend
comprised of at least one phosphorus containing monomer selected from the group
consisting of phosphonopolycarboxylic
acids and phosphonopolycarboxylic anhydrides and at least one other non-phos-phorus containing monomer selected from
di- or higher polyols, diacids, and anhydrides; and a curing agent suitable for
crosslinking with at least one of the hydroxyl groups of the phosphate functional
polyester polyol.
Kansai patents thermosetting
aqueous paint
US 7,838,076 B2
Kansai Paint Co., Ltd. has received a patent
for a thermosetting aqueous paint comprised of a polyester resin (A-2) and a
crosslinking agent (B), wherein the polyester resin (A-2) has a hydroxyl value
within the range of 10 to 300 mgKOH/g,
an acid value within the range of 10 to 100
mgKOH/g, and a number average molecular weight within the range of 400 to 6,000,
and is a polyester resin obtained by reacting
a polyvalent carboxylic acid and/or polyvalent carboxylic acid anhydride (a- 3)
and/or a polyisocyanate compound (a- 4)
with an oligomer (A-1), wherein the
oligomer (A-1) has a hydroxyl value within
the range of 30 to 500 mgKOH/g, an acid
value within the range of 20 to 200
mgKOH/g, and a number average molecular weight within the range of 300 to 2,000,
and is obtained by reacting a compound (a-
1) having at least one hydroxyl group and
at least one carboxyl group in a molecule
thereof, and a monoepoxide compound (a-
2) having a long-chain hydrocarbon group,
and wherein the number average molecular
weight of the polyester resin (A-2) is larger
than that of the polyester oligomer (A-1) by
400 to 2,000.
Dupont-Mitsui
Fluorochemicalson patents
non-stick coating
US 7,858,188 B2
Dupont-Mitsui Fluorochemicals Co. Ltd.
has obtained a patent for a structure comprised of a substrate and a non-stick coating applied to the substrate. The coating is
comprised of an undercoat and an overcoat
wherein the undercoat is comprised of a
primer layer and a midcoat layer, the primer
layer adheres to the substrate and is free
from the presence of ceramic particles of inorganic film hardener having an average
particle size of at least 14 micrometers, the
primer layer is comprised of a non-fluo-ropolymer containing polymer binder, and
the midcoat layer has diamond particles,
and the midcoat diamond particles are present only in the midcoat layer.
Word Pharmaceutical Trust
patents antimicrobial coating
US 8,084,132 B1
World Pharmaceutical Trust has been
granted a patent for a water-based
polyurethane coating system, the improvement is comprised of incorporating
into the system antimicrobial phenolic
complexes in an amount of approximately
2% to 10% by weight, the phenolic complexes is comprised of the reaction products of a member of the group consisting
of phenol and O-phenyl phenol with a
member of the group consisting of succinic acid and an antimicrobial diamine.
BASF Coatings patents process
for coating electrically
conductive substratetes
US 7,862,851 B2
BASF Coatings AG has been granted a
patent for a process for coating electrically
conductive substrates by applying at least
one electrocoat material to an electrically
conductive substrate and curing it to give an
electrocoat and subsequently applying at
least one layer of at least one pulverulent
coating material to the electrocoat and cur-
ing it to give a powder coat or alternatively
applying at least one electrocoat material to
an electrically conductive substrate and drying it without fully curing it to provide a
dried electrocoat film, applying at least one
layer of at least one pulverulent coating material to the dried electrocoat film and jointly
curing the dried electrocoat film and layer of
the pulverulent coating material to give an
electrocoat and a powder coat, wherein the
pulverulent coating material is comprised of
at least one epoxy resin having at least one
of a melting point, melting range or glass
transition temperature that is greater than
30° C, at least one carboxyl-containing polyester resin having at least one of a melting
point, melting range or glass transition temperature that is greater than 30° C, and at
least one polycarboxylic acid having a melting point of between 80° and 160° C.
PPG patents acrylic polymer
coatings for food cans
US 7,858,162 B2
PPG Industries has been granted a patent
for a food can coated at least in part on the
interior with a composition comprised of a
greater than 7% weight, based on total
solids weight, of an acrylic polymer having
a weight average molecular weight of
greater than or equal to 60,000 and an acid
value of < 30 mg KOH/g; and a crosslinker,
wherein the composition is substantially
epoxy-free and substantially polyester-free.
Cytec Surface Specialties SA
patents IR-shielding radiation
curable compositions
WO2011067261
IR-shielding radiation curable compositions
(relates to a radiation curable compositions
comprising at least one radiation curable
(meth)acrylated oligomer having a number
average molecular weight Mn of at least
1000, at least one at least one radiation curable monomer and at least one IR shielding
component comprising hexaboride particles and an organic dispersant and their use
to make solar control glass laminates). CW
