POLYMERIZED SUNSCREEN ABSORBERS
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United States of America Patent
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Issued Date -
Aug 14, 2014
app pub date -
Sep 10, 2012
filing date -
Sep 9, 2011
priority date (Note) -
Abandoned
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Abstract
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.
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