has been granted a patent for a radiation-curable composition comprised of a urethane (meth)acrylate oligomer comprised of an alkyd backbone, the alkyd backbone being derived from a polyester, the polyester having pendant ester groups protruding off of a main polymer chain of ester linkages, the pendant ester groups being derived from a compound selected from the group consisting of coconut oil, palm Kernel oil, and hydrogenated varieties of unsaturated oils or fatty acids having an Iodine value below 100 centigrams
Iodine I gram sample; a reactive diluent; and a photoinitiator wherein the composition, when cured, has a hydrolysis resistance of less than 30% loss in equilibrium modulus after 30 days exposure at 85[degrees]C and 85% relative humidity.
Each double bond takes up two atoms of iodine, so unsaturation is quantified as the number of centigrams
of iodine absorbed/gram of fat.
The black or dark-colored (gray or greenish) eggs are spherical, 2-3 mm in diameter, and weigh 1-2 centigrams
each; they are rich in proteins (28%), fat (15%), phosphorus, and vitamins.