Polyethers containing 2,2,6,6-tetramethyl piperidinyl carboxylic acid ester groups and synthetic resin compositions
US4460725A · kind A · utility
Inventors
Key dates
| Filing date | Mar 7, 1983 |
| Grant date | Jul 17, 1984 |
| Priority date | — |
| Expiry date | Mar 7, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/3435
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Polyethers containing 2,2,6,6-tetramethyl piperidinyl carboxylic acid ester or ether groups are provided, comprising polymeric units having the structure ##STR1## wherein X is selected from the group consisting of: ##STR2## R.sub.1 is selected from the group consisting of hydrogen, --O, alkyl, hydroxy alkyl and epoxyalkyl having from one to about eighteen carbon atoms, acyl having from one to about eighteen carbon atoms, cycloalkyl having from three to about eighteen carbon atoms; phenyl; phenalkyl and alkylphenyl having from seven to about twenty-four carbon atoms; PA1 R.sub.2 is hydrogen or hydroxy; PA1 n.sub.1 is 0 or 1; PA1 R.sub.3 is lower alkyl having from one to about six carbon atoms; and PA1 n is the average number of such units in the polymer; as well as stabilized synthetic resin compositions comprising such polyethers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.