2,2,6,6-Tetramethyl-4-piperidyl spiro aliphatic ethers as stabilizers for synthetic polymers

Claim 1

2,2,6,6-Tetramethyl-4-piperidyl spiro aliphatic ethers having the general formula: ##STR117## wherein: Y 1 is ##STR118## A 1 , A 2 , A 3 , A 4 , A 5 , and A 6 each are selected from the group consisting of hydrogen; alkyl and hydroxyalkyl having from one to about eighteen carbon atoms; cycloalkyl having from three to about eight carbon atoms; aryl having from about six to about eighteen carbon atoms; acyl having from one to about eighteen carbon atoms ##STR119## wherein R 4 is selected from the group consisting of aliphatic having from one to about eighteen carbon atoms; cycloaliphatic having from three to about eight carbon atoms; heterocyclic having from six to about eighteen carbon atoms; and aromatic having from six to about eighteen carbon atoms; carbamoyl ##STR120## wherein R 5 is selected from the group consisting of aliphatic having from one to about eighteen carbon atoms; cycloaliphatic hving from three to about eight carbon atoms; heterocyclic having from six to about eighteen carbon atoms; and aromatic having from six to about eighteen carbon atoms; ##STR121## and monovalent oxyacid groups; at least one pair of A 1 and A 2 ; A 3 and A 4 ; and A 5 and A 6 being taken together to form the group: ##STR122## wherein: Z is selected from the group consisting of hydrogen; oxyl O.; alkyl and hydroxyalkyl having from one to about twenty carbon atoms; and aryl and hydroxyaryl having from six to about twenty carbon atoms; X is selected from the group consisting of alkylene having from one to about eighteen carbon atoms; cycloalkylene having from three to about eight carbon atoms; arylene having from about six to about eighteen carbon atoms; polyacyl ##STR123## wherein R 4 is as above and n 1 is a number from 2 to 4; polycarbamoyl ##STR124## wherein R 5 is as above and n 2 is a number from 2 to 4; ##STR125## and di- and trivalent oxyacid groups; R 1 and R 2 each are selected from the group consisting of hydrogen; alkyl having from one to about eighteen carbon atoms; cycloalkyl having from three to about eight carbon atoms; aryl having from about six to about eighteen carbon atoms; carbamoyl ##STR126## wherein R 5 is selected from the group consisting of aliphatic having from one to about eighteen carbon atoms; cycloaliphatic having from three to about eight carbon atoms; heterocyclic having from six to about eighteen carbon atoms; and aromatic having from six to about eighteen carbon atoms; ##STR127## and monovalent oxyacid groups; R 3 is selected from the group consisting of alkyl having from one to about eighteen carbon atoms; cycloalkyl having from three to about eight carbon atoms; aryl having from about six to about eighteen carbon atoms; and --X--O--R 1 ; R 7 is selected from the group consisting of the residues of monohydric alcohols having from one to about eighteen carbon atoms and phenols having from six to about fifty carbon atoms; R 11 is selected from the group consisting of alkylene and oxyalkylene having from two to about ten carbon atoms and from zero to about five oxyether groups; cycloalkylene having from three to about eight carbon atoms; and arylene having from six to about fifty carbon atoms; and isocyanurate; m is a number from zero to 10; and p is zero or 1.