Polymerized sunscreen absorbers
AssigneeUniversity of Florida Research Foundation, Inc.
InventorsKenneth B. Wagener, Brian S. Aitken, Kenneth B. Sloan, Jason D. Heffley
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AssigneeUniversity of Florida Research Foundation, Inc.
InventorsKenneth B. Wagener, Brian S. Aitken, Kenneth B. Sloan, Jason D. Heffley
Estimating the term…
A soluble UVA and/or UVB absorbing chromophore-comprising polymer useful for preparation of a sunscreen lotion has a multiplicity of repeating units where one or more of the repeating units includes at least one UVA and/or UVB absorbing chromophore. The repeating units are those formed from the ring-opening metathesis polymerization (ROMP) of a strained cycloakene, cycloalkadiene, bicycloalkene, or bicycloalkadiene, or where one or more sp3 hybridized carbons of the strained cycloakene, cycloalkadiene, bicycloalkene, or bicycloalkadiene is replaced with a heteroatom. The UVA and/or UVB absorbing chromophore-comprising polymer can be formed from a UVA and/or UVB absorbing chromophore-comprising monomer, which can be homopolymerized or copolymerized by ROMP. Alternately, the UVA and/or UVB absorbing chromophore-comprising polymer can be formed by polymerization of monomers that can subsequently be substituted with UVA and/or UVB absorbing chromophores.
A UVA and/or UVB absorbing chromophore-comprising polymer, comprising a multiplicity of repeating units, wherein at least one of the repeating units comprises at least one UVA and/or UVB absorbing chromophore, and wherein independently the repeating units are derived from metathesis of a strained cycloakene, cycloalkadiene, bicycloalkene, or bicycloalkadiene, wherein optionally one or more sp3 hybridized carbons of the strained cycloakene, cycloalkadiene, bicycloalkene, or bicycloalkadiene is replaced with a heteroatom, and wherein the UVA and/or UVB absorbing chromophore-comprising polymer is soluble in at least one solvent.
A UVA and/or UVB absorbing chromophore-comprising monomer, comprising a UVA and/or UVB absorbing chromophore and a strained cycloakene, cycloalkadiene, bicycloalkene, or bicycloalkadiene, wherein one or more sp3 hybridized carbons of the strained cycloakene, cycloalkadiene, bicycloalkene, or bicycloalkadiene is optionally replaced with a heteroatom.
A method of preparing a UVA and/or UVB absorbing chromophore-comprising polymer comprising:
Dependencies are inferred from the claim text.