Siloxane containing benzotriazolyl/tetraalkylpiperidyl substituent

Claim 1

A siloxane containing at least one benzotriazolyl/tetraalkylpiperidyl substituent and having the general formula, S-Z, in which S represents a siloxane moiety and Z represents a pendant benzotriazolyl/tetraalkylpiperidyl group attached by means of a divalent connecting group to a silicon atom, in which: (A) the benzotriazolyl moiety is represented by the general formula, ##STR16## in which (1) R 1 is (a) a monovalent goup selected from the group consisting of hydrogen and chloro; (b) a tetraalkylpiperidyl group; or (c) a divalent connecting group; (2) R 2 is (a) a monovalent group selected from the group consisting of hydrogen, chloro, carboxy, sulfo, ethylsulfonyl, C 1 -C 8 alkyl, C 1 -C 4 alkoxy, vinylbenzyloxy, and alkoxycarbonyl in which the alkoxy moiety contains from 2 to 9 carbon atoms; (b) a tetraalkylpiperidyl group; or (c) a divalent connecting group; R 3 is (a) a monovalent group selected from the group consisting of hydrogen, chloro, carboxyethyl, C 1 -C 14 alkyl, C 1 -C 4 alkoxy, cyclopentyl, cyclohexyl, phenyl, phenyl substituted with C 1 -C 8 alkyl groups, C 7 -C 9 phenylalkyl, and alkoxycarbonyl in which the alkoxy moiety contains from 2 to 9 carbon atoms; (b) a tetraalkylpiperidyl group; or (c) a divalent connecting group; (4) R 4 is a monovalent goup selected from the group consisting of hydrogen, chloro, hydroxy, C 1 -C 14 alkyl, C 1 -C 8 alkoxy, and vinylbenzyloxy; and (5) R 5 is (a) a monovalent group selected from the group consisting of hydrogen, chloro, carboxyethyl, C 1 -C 14 alkyl, cyclopentyl, cyclohexyl, phenyl, and C 7 -C 9 phenyalkyl; (b) a tetraalkylpiperidyl group; or (c) a divalent connecting group; and (B) the tetraalkylpiperidyl moiety is represented by the general formula, ##STR17## in which (1) R 6 is (a) a monovalent group selected from the group consisting of hydrogen; hydroxy; C 1 -C 18 alkyl; C 2 -C 4 hydroxyalkyl; C 8 -C 12 phenylhydroxyalkyl; C 3 -C 8 alkenyl; C 7 -C 12 phenylalkyl; C 1 -C 8 alkanoyl; C 3 -C 5 alkenoyl; and -CO-N(R 11 )(R 12 ), in which each of R 11 and R 12 is a monovalent group independently selected from the group consisting of hydrogen, C 1 -C 18 alkyl, C 3 -C 12 alkoxyalkyl, C 2 -C 8 hydroxyalkyl, C 3 -C 12 alkenyl, C 7 -C 14 phenyalkyl, C 6 -C 14 aryl, C 7 -C 14 alkaryl, C 3 -C 7 cycloakyl, and 2 ,2,6,6, -tetramethyl-4-piperidyl; (b) a benzotriazolyl group; or (c) a divalent connecting group; (2) R 7 is C 1 -C 5 alkyl; (3) R 8 is hydrogen or C 1 -C 5 alkyl; (4) R 9 is (a) a monovalent group selected from the group consisting of hydrogen; hydroxy; C 1 -C 12 alkoxy; C 3 -C 14 alkoxyalkoxy (oxaalkoxy); C 3 -C 5 alkenoxy; poly(oxyethylene) having from 1 to 10 oxyethylene repeating units; carboxy; C 1 -C 18 alkoxycarbonyl; C 3 -C 5 alkenoxycarbonyl; C 3 -C 8 cycloalkoxycarbonyl; C 6 -C 10 aryloxycarbonyl; C 7 -C 12 alkylaryloxycarbonyl; C 7 -C 12 phenylalkoxycarbonyl; carboxymethyl; C 1 -C 18 alkoxycarbonylmethyl; C 3 -C 5 alkenoxycarbonylmethyl; C 5 -C 8 cycloalkoxycarbonylmethyl; C 6 -C 10 aryloxycarbonylmethyl; C 7 -C 12 alkylaryloxycarbonylmethyl; C 7 -C 12 phenylalkoxycarbonylmethyl; C 2 -C 20 alkanoyloxy (alkoxycarbonyloxy); cyano; cyanomethyl; 2-cyanoethoxy; --N(R 13 )(R 14 ), in which each of R 13 and R 14 independently is a monovalent group selected from the group consisting of C 1 -C 18 alkyl, C 2 -C 14 alkoxyalkyl, C 3 -C 5 alkenyl, C 5 -C 8 cycloalkyl, C 7 -C 12 phenylalkyl, C 6 -C 10 aryl, C 2 -C 5 hydroxyalkyl, and C 7 -C 10 cycloakylalkyl; --CH 2 CH 2 N(R 13 )(R 14 ), in which R 13 and R 14 are as already defined; --CO--N(R 15 )(R 16 ), in which each of R 15 and R 16 independently is hydrogen, a group as defined for R 11 and R 12 , or a monovalent group selected from the group consisting of C 3 -C 12 alkoxyalkyl, C 3 -C 12 alkenyl, C 2 -C 8 hydroxyalkyl, C 7 -C 14 phenylalkyl, C 6 -C 14 aryl, and C 7 -C 14 alkaryl; --N(R 17 )--CO--R 18 , in which R 17 is hydrogen or a group as defined for R 13 and R 14 and R 18 is a monovalent group selected from the group consisting of C 1 -C 12 alkyl, C 3 -C 14 alkoxyalkyl, C 2 -C 14 alkyl which is substituted with carboxy or the C 1 -C 4 alkyl ester thereof, C 2 -C 5 alkenyl; C 5 -C 8 cycloalkyl, C 7 -C 12 phenylalkyl, C 6 -C 10 aryl, and C 7 -C 12 alkaryl; --O--CO--R 19 , in which R 19 is a monovalent group selected from the group consising of C 1 -C 18 alkyl, C 3 -C 14 alkoxyalkyl, C 2 -C 14 alkyl which is substituted by carboxy or the C 1 -C 4 alkyl ester thereof, C 2 -C 5 alkenyl, C 5 -C 8 cycloalkyl, C 7 -C 12 phenylalkyl, C 6 -C 10 aryl, C 7 -C 12 alkylaryl, and phenyl or C 7 -C 10 phenylalkyl which is substituted by hydroxy and 1-3 C 1 -C 4 alkyl groups; --N(R 17 )--CO--O--R 20 , in which R 17 is as already defined and R 20 is a monovalent group selected from the group consisting of C 1 -C 12 alkyl, C 3 -C 5 alkenyl, C 5 -C 8 cycloalkyl, phenyl, and C 7 -C 12 phenylalkyl; --O--CO--O--R 20 , in which R 20 is as already defined; and --O--CO--N(R 21 )(R 22 ), in which each of R 21 and R 22 independently is hydrogen or a group as defined for R 13 and R 14; (b) a benzotriazolyl group; or b) a divalent connecting group; and (5) R 10 is C 1 -C 5 alkyl; with the selection of (A)(1)-(A)(5) and (B)(1)-(B)(5) such that Z contains at least one benzotriazolyl moiety and at least one tetraalkylpiperidyl moiety, one of which is covalently coupled to a silicon atom of the siloxane moiety, S, by means of a divalent connecting group.