Patent ID: 6407049
Filing Date: 2002-06-18
Classification: C11D

Abstract:
A singlet oxygen generator having the formula: wherein P is a photosensitizer unit having the formula: or the formula: wherein M is a photoactive metal or non-metal having a valence greater than 3, rings A, B, C, and D are aromatic rings, each of said rings independently selected from the group consisting of benzene, 1,2-naphthalene, 2,3-naphthalene, anthracene, phenanthrene, and mixtures thereof; R is an axial moiety which mediates the solubility of the singlet oxygen generator; and D is a unit which increases the fabric substantivity of the singlet oxygen generator, said unit having the formula: â€”L1â€”E or â€”L1â€”Bâ€”[L2â€”E]m wherein E is a unit which comprises a tetravalent nitrogen having the formula: wherein each R30-R35 is linear C1-C22 alkyl branched C3-C22 alkyl, linear C1-C22 alkenyl, branched C3-C22 alkenyl, substituted aryl, unsubstituted aryl, substituted alkylenearyl, unsubstituted alkylenearyl, substituted aryloxy, unsubstituted aryloxy, substituted alkyleneoxyaryl, unsubstituted alkyleneoxyaryl, substituted oxyalkylenearyl, unsubstituted oxyalkylenearyl, oxyalkyl or any R30-R35 can be taken together to form a nitrogen-containing ring, and mixtures thereof; X is a water soluble anion; B is a branching unit having the formula: wherein B is selected from the group consisting of boron, aluminum, nitrogen, phosphorous, carbon, silicon, tin, germanium, and mixtures thereof, preferably carbon or silicon; and L1 and L2 are linking units independently selected from the group consisting of oxygen, linear or branched alkyl, linear of branched alkenyl, linear or branched alkyloxy, substituted or unsubstituted aryl, substituted or unsubstituted alkylaryl, substituted or unsubstituted alkyloxyaryl, substituted or unsubstituted oxyalkylaryl, and mixtures thereof, provided said linking units when taken together with said B unit comprise a total of at least 2 continuous covalent bonds from said P unit to said E units; m is from 2 to 4.