Nickel stabilizers for synthetic polymers
US4077902A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 3, 1976 |
| Grant date | Mar 7, 1978 |
| Priority date | — |
| Expiry date | Mar 3, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/0091
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Mixtures consisting of a compound of the formula I ##STR1## wherein either R.sub.1 represents a hydroxyl group and R.sub.2 represents hydrogen or R.sub.1 represents hydrogen and R.sub.2 represents a hydroxyl group, R.sub.3 and R.sub.4 independently of one another represent hydrogen or alkyl, and n represents a value from 0 to 2, and a compound of the formula II ##STR2## wherein R.sub.5 represents alkyl, cycloalkyl, aralkyl, aryl or aralkyl or aryl groups which are mono-, di or tri-substituted by hydroxyl, alkyl, chlorine and/or alkoxy groups, alkoxy, cycloalkoxy, aralkoxy, aryloxy or aralkoxy or aryloxy which are mono-substituted or di-substituted in the aryl radical by alkyl, chlorine and/or alkoxy, R.sub.6 represents hydrogen, alkyl, cycloalkyl, aralkyl, aryl or aralkyl or aryl groups which are mono-, di- or tri-substituted by hydroxyl, alkyl, chlorine and/or alkoxy groups, alkoxy, cycloalkoxy, aralkoxy, aryloxy or aralkoxy or aryloxy which are mono-substituted or di-substituted in the aryl radical by alkyl, chlorine and/or alkoxy, and m represents a value from 0 to 2.5, are valuable for stabilizing polymeric substrates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.