Poly-methine compounds, condensation polymer having a...

Details Poly-methine compounds, condensation polymer having a... Poly-methine compounds, condensation polymer having a...

C - Chemistry, Metallurgy

08

K

C08K 5/16 (2006.01) C07C 255/41 (2006.01) C07C 317/18 (2006.01) C07C 317/46 (2006.01) C07C 323/12 (2006.01) C07C 323/65 (2006.01) C07D 207/404 (2006.01) C07D 209/18 (2006.01) C07D 209/48 (2006.01) C07D 215/14 (2006.01) C07D 233/32 (2006.01) C07D 235/16 (2006.01) C07D 239/74 (2006.01) C07D 251/34 (2006.01) C07D 261/20 (2006.01) C07D 263/56 (2006.01) C07D 275/04 (2006.01) C07D 277/20 (2006.01) C07D 277/64 (2006.01) C07D 285/12 (2006.01) C07D 295/185 (2006.01) C07D 307/16 (2006.01) C07D 307/54 (2006.01) C07D 3

Patent

CA 2053904

2053904 9013597 PCTABS00002 Disclosed are poly-methine compounds having formula (I), wherein R1 is an unsubstituted or substituted alkoxycarbonyl, cycloalkoxycarbonyl or aryloxycarbonyl radical; an unsubstituted or substituted carbamoyl radical; or an unsubstituted or substituted alkylsulfonyl, cycloalkyl-sulfonyl or arylsulfonyl radical, or an unsubstituted or substituted aryl radical; R2 is an unsubstituted or substituted alkyl, cycloalkyl or aryl radical; R3 is hydrogen, alkyl, -OR2 or halogen; and L is an organic linking group bonded by non-oxo carbon atoms to the oxygen atoms adjacent to L. Also disclosed are admixtures of 100 to 10,000 ppm of at least one of the poly-methine compounds and certain condensation polymers. The resulting polymer compositions are useful to protect substrates or materials susceptible to degradation by ultraviolet light.

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