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DSM PATENTS RADIATIONCURABLE



Published August 16, 2005
DSM PATENTS RADIATIONCURABLE
COMPOSITION
Patent No. U.S. 6,852,770 B2
DSM IP Assets has been granted a
patent for a radiation curable composition
comprised of at least one radiation-
curable oligomer. The oligomer
includes diisocyanate residues, wherein
at least 50% mole of the diisocyanates
used to form the oligomer is
absent a cyclic structure; and zero to
10% weight, relative to the total
weight of the composition, of monofunctional
reactive diluents, wherein
at least 50% weight of the monofunctional
reactive diluents is absent an
aromatic ring; wherein the composition
has a viscosity of less than 10,000
cps at 25° C; and, after cure, a secant
modulus of less than five MPa.


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