Coatings World - September 2012

BASF Coatings Japan patents
phosphonate-containing two-
component coating system
U.S. 8,138,249 B2
BASF Coatings Japan Ltd. has been
awarded a patent for a two-component
coating system comprised of a compo-
nent (a) comprised of one or more poly-
isocyanates, a component (b) comprised
of one or more oligomeric and/or poly-
meric compounds that are reactive with
component (a), which component (b) has
an acid number of up to 30 mg KOH/g,
wherein component (b) is comprised of at
least one member selected from the group
consisting of a polyester having at least
two hydroxyl groups or a poly(meth)acry-
late having at least two hydroxyl groups;
and a component (c) comprised of one or
more phosphonates selected from the
group consisting of phosphonic diesters
and diphosphonic diesters. Where (i) com-
ponent (b) contains all oligomeric and/or
polymeric compounds that are present in
the two-component coating system and
are reactive with component (a) and (ii)
component (b) contains not more than
15% by weight, based on the total weight
of component (b), of oligomeric and/or
polymeric compounds which carry iso-
cyanate-reactive amino groups; wherein
component (c) is capable of reacting with
moisture to suppress secondary reactions
of polyisocyanates with condensation that
give rise to unwanted gelling.

DuPont patents powder
coating compositions
U.S. 8,158,698 B2
E. I. du Pont de Nemours and Company
has been granted a patent for a powder
coating composition comprised of at least
one glycidyl-functionalized (meth) acrylic
resin, 1%-30% weight, the weight percent
based on the total weight of the first com-
ponent, of at least one hydroxyl-function-
alized alkyl acrylate alkyl
methacrylate copolymer additive
and at least one component se-
lected from the group consisting of pig-
ments, fillers, cross-linking agents and/or
coating additives, different from compo-
nent the second component.

ADM patents lecithin and plasticzer compositions U.S. 2011219983 Lecithin and plasticiser compositions and methods (discloses compositions having lecithin and a plasticiser. Processes for producing such compositions are further disclosed. The present invention is also directed towards uses of the novel compositions as a dispersant in order to disperse compounds, such as in the fields of coatings, inks, cosmetics and the like. In one embodiment, the dispersants of the present invention are used to disperse pigments). CW