Low viscous p-phenylene diamine stabilizers
US4360621A · kind A · utility
2Cited by
6References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 16, 1981 |
| Grant date | Nov 23, 1982 |
| Priority date | — |
| Expiry date | Mar 16, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S524/925
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A normally liquid stabilizer for rubber or urethane resin, obtained by reacting hydroquinone with a mixture of aromatic amines of the formula: ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3, independently of each other, are hydrogen or C.sub.1-18 alkyl, said aromatic amine mixture containing 7-26 weight % of p-ethylaniline and 8-40 weight % of 2,4-xylidine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.