Vulcanization accelerators
US4866138A · kind A · utility
2Cited by
8References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 15, 1988 |
| Grant date | Sep 12, 1989 |
| Priority date | — |
| Expiry date | Mar 15, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/43
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A method for, and compositions, providing vulcanizable compounds of unsaturated polymers having an improved balance of scorch time and cure rates, ie., slow scorch times and fast cure rates, comprising adding to said vulcanizable polymers accelerating amounts of benzothiazolesulfenamides selected from the group consisting of N-oxydiethylene-2-benzothiazole sulfenamide, N-t-butyl-2-benzothiazole sulfenamide and N-cyclohexyl-2-benzothiazole sulfenamide, with N-oxydiethylenethiocarbamyl-N'-t-alkyl sulfenamides wherein the alkyl radicals contain 4 to 8 carbon atoms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.