Polyvinyl ultraviolet light absorbers for personal care
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United States of America Patent
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Aug 2, 2011
Grant Date -
Jul 23, 2009
app pub date -
Jan 17, 2008
filing date -
Jan 17, 2008
priority date (Note) -
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Abstract
UV-absorbing polymers and copolymers suitable for Composition into sunscreens for the protection of human skin. The UV-absorbing chromophoric monomers chosen are simple and easily synthesized. With the correct choice of chromophoric monomer or mixture of monomers, protection against UV-A radiation or against both UV-A and UV-B radiation can be achieved. With the correct choice of comonomer, copolymers produced as aqueous latex emulsions or as Polyethylene Glycol solutions can also be achieved.
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