Blocked mercaptosilane coupling agents for filled rubbers
US7081500B2 · kind B2 · utility
27Cited by
16References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 9, 2001 |
| Grant date | Jul 25, 2006 |
| Priority date | — |
| Expiry date | Sep 28, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L9/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Blocked mercaptosilanes are provided in which the blocking group contains and unsaturated heteroatom or carbon chemically bound directly to sulfur via a single bond. This blocking group optionally may be substituted with one or more carboxylate ester or carboxylic acid functional groups. These silanes are used in manufacture of inorganic filled rubbers, with the silanes deblocked by a deblocking agent. Synthesis of the blocked mercaptosilanes is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.