U.S. 8,540,974 B2
BASF has been granted a patent for an aqueous dispersion comprised of water-soluble
and/or water-swellable anionic polymers of
ethylenically unsaturated, anionic monomers; an aqueous medium; and a stabilizer
comprised of (a) at least one water-soluble
polymer selected from the groups consisting
of graft polymers of vinyl acetate and/or vinyl
propionate on (i) polyethylene glycols or (ii)
polyethylene glycols or polypropylene glycols blocked at one or both terminal groups
with alkyl, carboxyl or amino groups, polyalkylene glycols, polyalkylene glycols blocked
at one or both terminal groups with alkyl,
carboxyl or amino groups and (b) at least
one water-soluble copolymer comprised of
(b1) nonionic monoethylenically unsaturated monomers, (b2) cationic monoethylenically unsaturated monomers and optionally
(b3) anionic monoethylenically unsaturated
monomers, the fraction of the interpolymer-ized cationic monomers being greater than
that of the anionic monomers.
Polyurethane Coatings with
Improved Adhesion
U.S. 8,541,059 B2
PRC-DeSoto International has obtained a
patent for a polyurethane coating composition comprised of (a) an isocyanate component comprised of 70 to 99 weight percent of
an aliphatic isocyanate, wherein the aliphatic
isocyanate is comprised of polymeric hexamethylene diisocyanate; and 1 to 30 weight
percent of of an aromatic isocyanate, wherein the aromatic isocyanate is comprised of
polymeric methylene diphenyl diisocyanate;
wherein weight percent is based on the total
solids weight of the isocyanate component;
and b) a polyol component comprised of
40 weight percent to 80 weight percent of a
hard acrylic polyol; 10 weight percent to 40
weight percent of a soft acrylic polyol; and
5 weight percent to 30 weight percent of a
polyester polyol; wherein weight percent is
based on the total solids weight of the polyol
component; and wherein the coating composition cures at room temperature.
Multi-Layer Anti-Reflecting
Coating
U.S. 8,541,062 B2
Guardian Industries Corp. has been awarded a patent for a method of making a multi-layer anti-reflective coating comprised of
preparing at least two un-solgel precursor
compositions, wherein each of the at least
two un-solgel precursor compositions are
comprised of at least one inorganic oxide precursor and at least one UV curable
monomer; depositing a first coating layer
of one of said un-solgel precursor compositions on a substrate; curing the first coating
layer by exposing the first coating layer to
electromagnetic radiation; depositing at
least one additional coating layer of one of
the un-solgel precursor compositions on the
first cured coating layer; curing the at least
one additional coating layer by exposing
the at least one additional coating layer to
electromagnetic radiation; and heating the
cured coating layers to remove substantially
all organic content and form a multi-layer
anti-reflective coating.
Temperature Controlled
Variable Reflectivity
Coatings
U.S. 8,541,094 B2
Empire Technology Development has re-
ceived a patent for a coated substrate
comprised of a substrate and a coating on
the substrate, the coating is configured to
change between a relatively higher reflec-
tivity state and a relatively lower reflectiv-
ity state depending at least partially upon a
temperature of at least a portion of the coat-
ing, the coating is comprised of a selectively
reflective layer comprised of a plurality of
microcapsules, the plurality of microcap-
sules comprised of an ionic liquid and a
surfactant within a shell, the plurality of mi-
crocapsules having a relatively higher reflec-
tively when at temperatures above a cloud
transition temperature and a relatively lower
reflectivity when at temperatures below the
cloud transition temperature; wherein, when
at temperatures above the cloud transition
temperature, the selectively reflective layer
reflects a first fraction of incident light; and
when at temperatures below the cloud tran-
sition temperature, the selectively reflective
layer reflects a second fraction of the inci-
dent light, the first fraction of the incident
light being greater than the second fraction
of the incident light.
Toagosei Patents Adhesive
U.S. 8,541,495 B2
Toagosei Co. has been granted a patent for
an adhesive comprised of (a) a 2-cyanoacry-
late; and (b) from 1 to 400 parts by weight,
based on 100 parts by weight of the 2-cya-
noacrylate, of a cyanoacrylate comprised
of two or more 2-cyanoacryloyl groups,
wherein the cyanoacrylate (b) is an ester
obtained by reacting 2-cyanoacrylic acid
with a polyoxyallsylene polyol, a polyester
polyol, a polycarbonate polyol, a polybutadiene polyol, a hydrogenated polybutadiene
polyol, a polyisoprene polyol, or a hydrogenated polyisoprene polyol, and wherein the
number average molecular weight of the
cyanoacrylate (b) is in the range from 1,000
to 50,000.
Nitto Denko Patents
Pressure-Sensitive Adhesive
U.S. 8,541,501 B2
Nitto Denko Corporation has been granted
a patent for a water-dispersed pressure-sensitive adhesive composition comprised
of a (meth)acrylic polymer, a latex containing a rubber component, and a tackifier: the
(meth)acrylic polymer is obtained by polymerizing a monomer composition comprised
of as a primary component an alkyl (meth)
acrylate having an alkyl group with 1 to 18
carbon atoms; the rubber component is immiscible with the (meth)acrylic polymer and
has a loss tangent peak temperature of − 5°
C or below when determined by a dynamic
viscoelastic measurement in which shear
strain is applied at a frequency of 1 Hz;
and the tackifier is miscible with the rubber
component, but immiscible with the (meth)
acrylic polymer. CW
BASF Patents Aqueous Dispersions
of Water-Soluble Anionic Polymers
