C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 63/68 (2006.01) C07C 63/66 (2006.01) C08G 63/547 (2006.01) C08G 69/44 (2006.01) D06M 15/507 (2006.01) D06M 15/59 (2006.01) A61K 7/42 (1990.01)
Patent
CA 2099625
ABSTRACT Novel water-dispersible copolymers which contain at least one UVA light-absorbing monomer, one UVB light-absorbing monomer, one hydrophillic monomer, and optionally one hydrophobic monomer component and their use within compositions are disclosed. The UVA light-absorbing monomer absorbs at .lambda. max ultraviolet light in the 320 - 400 nm range. The UVB light-absorbing monomer absorbs at .gamma. max ultraviolet light in the 290 - 320 nm range. Because of the R3 group used in the invention, the copolymers of the invention permit higher loading of UV monomers than previously obtainable.
Hessel John F.
Khorshahi Ferial
Langer Matthew E.
Sinfield Dennis
Bereskin & Parr
Plc Unilever
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