Compounds derived from polyanhydride resins with film-forming, UV-absorbing, and photostablizing properties, compositions containing same, and methods of using the same
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United States of America Patent
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May 19, 2009
Grant Date -
Sep 1, 2005
app pub date -
Feb 25, 2004
filing date -
Feb 25, 2004
priority date (Note) -
Expired
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Abstract
Polymers containing one or more crylene and fluorene moieties attached to the polymer backbone, sunscreen compositions including a mixture of a photoactive compound and a polymer containing one or more crylene and fluorene moieties attached to the polymer backbone are described herein. Also disclosed are methods for stabilizing a sunscreen composition and methods of filtering out ultra-violet light from a substrate by the addition of one or more of the foregoing polymers, and methods of waterproofing and forming a film with one or more of the foregoing polymer are described herein.
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