Filled rubbers comprising blocked mercaptosilanes and thiuram deblocking agents
US6127468A · kind A · utility
84Cited by
8References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 19, 1999 |
| Grant date | Oct 3, 2000 |
| Priority date | — |
| Expiry date | Feb 19, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L9/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
This invention describes the use of novel blocked mercaptosilanes, wherein the hydrogen atom of the mercaptan functionality has been substituted, in filled polymers. The blocked mercaptosilanes described are unique in that they allow the mixing of fillers with organic polymers to proceed while remaining inert toward coupling to the polymer. The coupling reactions of these blocked mercaptosilicon compounds are triggered by addition of an appropriate deblocking agent, which preferably is tetramethylthiuram monosulfide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.