Sun patents universal colorants
Patent No. U.S. 7,776,146 B2
Sun Chemical Corporation has received a
patent for a method of preparing a universal
base composition comprised of dispersing a
pigment in a resin that is soluble in both
water and organic solvent and wherein the
resin is comprised of both hydrophobic and
hydrophilic monomers; the total weight of
the hydrophobic and hydrophilic monomers
is at least approximately 20% of the total
weight of the resin; and the weight ratio of
hydrophobic monomers to hydrophilic
monomers is from approximately ⅕ to 5.
merizing monomers in at least one first stage
(core monomers), then polymerizing mon-
omers in at least one further, second stage
(transition stage), and finally polymerizing
monomers in a third stage which form a
filmable shell (shell monomers), where,
based on the percentage constitution of the
monomer mixtures of the three stages, at
most 30% by weight of the monomers of the
first stage are identical with those of the third
stage, and at least 5% by weight of the
monomers of the second stage are identical
with, respectively, those of the first and those
of the third stage, and not more than 60%
by weight of the monomers of the second
stage are monomers absent in the first stage
and also absent in the third stage, wherein
the polymeric film is comprised of a matrix
and discrete polymer particles distributed in
the matrix, wherein the shells form the ma-
trix and the cores form the discrete polymer
particles.
PPG patents primer
composition
Patent No. U.S. 7,767,310 B2
PPG Industries has been granted a patent
for an aircraft transparency, comprised a
substrate comprised of a thermoplastic
material; a primer formed over at least a
portion of the substrate, the primer comprised of the reaction product of phenol,
4, 4′-(1-methylethylidene)bis-, polymer
with 2,2′-[(1-methylethylidene) bis( 4,1-
phenyleneoxymethylene)] bis[oxirane];
and bis(trimethoxysilylpropyl)amine,
wherein the reaction product, when hydrolyzed, comprised of at least 12 silanol
groups; a radiation protective coating
formed over at least a portion of the
primer, the protective coating is comprised
of indium tin oxide and having a sheet resistance less than or equal to 10 ohms per
square; and an overcoat formed over at
least a portion of the radiation protective
coating, wherein the overcoat comprises
at least one of polyurethane or siloxane.
Kanisai patents photocurable
for anti-fogging coating
Patent No. U.S. 7,776,937 B2
Kansai Paint Co. has been granted a patent
for a photocurable composition for forming
an anti-fogging coating. It is comprised of
(A) a urethane compound containing at
least two (meth)acryloyl groups and a poly-oxyalkylene chain in a molecule thereof; (B)
a compound having at least two (
meth)acryloyl groups and at least two hydroxyl
groups in a molecule thereof, obtained by
reacting at least two components consisting
of an epoxy compound and (meth)acrylic
acid; (C) a compound having an ethylenic
unsaturated group other than the components (A) and (B). CW
BASF patents color effect
polymer dispersion
Patent No. U.S. 7,776,237 B2
BASF has been granted a patent for a process
which is comprised of forming a film from
an aqueous emulsion of a polymer with
core/shell structure, and then removing
water from the aqueous film, thereby forming a polymeric film, wherein the polymeric
film produces a visual effect upon reflection
of electromagnetic radiation, and wherein
the emulsion polymer is obtained by poly-
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