Rubber stabilizers derived from N-phenyl-p-phenylenediamine
US4855346A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 4, 1984 |
| Grant date | Aug 8, 1989 |
| Priority date | — |
| Expiry date | Sep 4, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S524/925
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
There are disclosed novel compounds of the formula: ##STR1## wherein n=0 or 1, R.sub.1 is selected from the group consisting of a hydrogen atom, straight chain and branched chain alkyl groups and alkoxy groups, and cycloalkyl groups and cycloalkoxy groups having 5 to 8 carbon atoms, R.sub.2 is selected from the group consisting of lower alkyl groups having 1 to 5 carbon atoms, X is an oxygen atom if n=0 or a nitrogen atom if n=1, Y is selected from the group consisting of a hydrogen atom, straight chain and branched chain alkyl groups having 1 to 18 carbon atoms, cycloalkyl groups having 5 to 8 carbon atoms, alkenyl groups having 3 to 18 carbon atoms, phenyl groups, alkylphenyl groups having 7 to 14 carbon atoms and aralkyl groups having 7 to 15 carbon atoms, and R.sub.3 is selected from the same group as Y, or together with X and Y forms part of a heterocyclic ring composed of 5 or 6 atoms in which X is the hetero-nitrogen atom. Also disclosed is the use of the foregoing compounds as stabilizers in rubber or rubber latex.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.