C - Chemistry – Metallurgy – 09 – J
Patent
C - Chemistry, Metallurgy
09
J
C09J 175/14 (2006.01) C08F 290/14 (2006.01) C09D 4/00 (2006.01) C09J 163/00 (2006.01) C09J 201/00 (2006.01)
Patent
CA 2076504
K-18765/A/CGC 1570 Radiation curable composition with high temperature oil resistance Abstract of the Disclosure The present invention relates to a radiation curable composition with high temperature oil resistance comprising (1) a (meth)acrylated urethane component comprising (a) the reaction product of hydroxyethyl(meth)acrylate and a monomeric or polymeric aromatic isocyanate, (b) hydroxyethyl(methy)acrylate and optionally (c) a (meth)acrylated prepolymer of a monomeric or polymeric aromatic isocyanate and at least one polycaprolactone polyol with a functionality > 2 and a molecular weight in the range of about 500 to about 3000, or (d) a (meth)acrylated prepolymer of a monomeric or polymeric aromatic isocyanate and at least one polyether polyol with a functionality > 2 and a molecular weight in the range of about 90 to about 7000, or a mixture of (c) and (d), (2) an aromatic multifunctional epoxy (meth)acrylate having a molecular weight of less than about 1000, (3) at least one free radical polymerizable monomer and (4) a free radical photoinitiator, which composition exhibits at 25°C (i) a Tg greater than about 45°C, (ii) an elongation of greater than about 3%, (iii) a tensile strength of greater than about 9 N/mm2 and (iv) a shear storage modulus of greater than about 30 N/mm2.
Bielat Richard A.
Drain Kieran F.
Ag Ciba-Geigy
Bielat Richard A.
Drain Kieran F.
Fetherstonhaugh & Co.
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