Ethers based on polyalkyl-1-oxadiazaspirodecanes

Claim 1

An ether or epoxide, containing polyalkylpiperidine groups, of the formula (I) ##STR8## in which n is an integer from 1 to 50, when n equals 1, an oxirane ring being completed via the free bonds, X denotes a group of the formula (II) or (III) ##STR9## wherein the indices 3 and 4 indicate the ring positions in the diazaspirodecane system and one bond of the nitrogen is attached to the CH 2 group of the ether radial, R 1 is hydrogen, oxygen or C 1 - to C 12 -alkyl, R 2 and R 3 are either identical and denote hydrogen or a C 1 - to C 5 -alkyl group, in which case R 4 is a methyl group, or R 2 is hydrogen or C 1 - to C 5 -alkyl and R 3 and R 4 , conjointly with the carbon atoms to which they are linked, represent a C 5 - or C 6 -cycloalkyl group or a group of the formula ##STR10## R 5 and R 6 are identical or different and represent hydrogen, C 1 - to C 30 -alkyl, a phenyl or naphthyl grop which is unsubstituted or substituted by chlorine or C 1 - to C 4 -alkyl, or a C 7 - to C 12 -phenylalkyl group which is unsubstituted or substituted by C 1 - to C 4 -alkyl, or R 5 and R 6 , conjointly with the carbon atom which is linked to them, denote a C 5 - to C 18 -cycloalkyl group which is unsubstituted or substituted by up to four C 1 - to C 4 -alkyl groups, or denote a group of the formula ##STR11##