Antihardeners for polymers
US4021404A · kind A · utility
3Cited by
7References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 1, 1975 |
| Grant date | May 3, 1977 |
| Priority date | — |
| Expiry date | Oct 1, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S524/925
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Amide compounds such as N-(phenyl)propenamide and N-(phenyl)-2-methylpropenamide are added to certain diene polymers such as SBR, NBR and natural rubber, preferably prior to compounding with reinforcing agents such as carbon black, thereby improving the hardening resistance of the subsequently sulfur vulcanized polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.