C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
260/298, 260/313
C07D 263/56 (2006.01) C07D 263/57 (2006.01) C08K 5/00 (2006.01) C08K 5/35 (2006.01)
Patent
CA 1120037
Abstract of the Disclosure The invention relates to certain bichromophoric compounds which have been found to be effective ultraviolet stabilizers. The invention also relates to ultraviolet degradable organic compositions containing a stabilizing amount of a certain bichromopheric compound to prevent such degradation. These stabilizers are effective in the presence of other additives commonly employed in polymeric compositions including, for example, pigments, colorants, fillers, reinforcing agents and the like. These ultraviolet stabilizers may also be in- corporated into the organic composition such as polymers by adding to the polymer melt or dissolved in the polymer dope, coated on the exterior of the shaped or molded article, film or extruded fiber. The bichromophoric compounds of the invention are diesters of resorcinol compounds having the general formula: Image wherein A and A' are an aromatic or heterocyclic substituent and B is a resorcinol substituent. - i -
228630
Eastman Kodak Company
Gowling Lafleur Henderson Llp
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