Pyrimidine-2,4,6-trione compounds

Details Pyrimidine-2,4,6-trione compounds Pyrimidine-2,4,6-trione compounds

C - Chemistry, Metallurgy

07

D

C07D 239/60 (2006.01) C07D 239/62 (2006.01) C07F 7/08 (2006.01) C07F 7/10 (2006.01) C08G 77/388 (2006.01) C08K 5/3492 (2006.01) C08K 5/5455 (2006.01) C09K 15/30 (2006.01) C09K 15/32 (2006.01)

Patent

CA 2318296

Compounds of the general formula I (see formula I) wherein R1 and R2 each independently are C2-C18 alkyl or C5-C7 cycloalkyl, or C2-C18 alkyl in which at least one methylene group is replaced by oxygen; R3 is hydrogen, C1-C18 alkyl or C2-C18 alkyl in which at least one methylene group is replaced by oxygen, or is C1-C18 alkyl carbonyl, C3-C18 alkenyl, C3- C18 alkynyl or a group YS; R4 is hydrogen, C1-C8 alkyl or a group OR3; Y is a linker group; Z is a silane-, an oligosiloxane- or a polysiloxane-moiety. are effective in absorbing ultra violet radiation and can be used as sunscreen agents.

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