Silica reinforced elastomers
US5089554A · kind A · utility
32Cited by
5References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 13, 1989 |
| Grant date | Feb 18, 1992 |
| Priority date | — |
| Expiry date | Jun 13, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2006/19
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Mechanically improved elastomeric shaped articles include reinforcing amounts of a particulate silica filler material, said silica filler material comprising at least one precipitated silica having (i) a CTAB surface area of from 20 to 200 m.sup.2 /g, (ii) a mean projected area of aggregates of greater than about 10,000 nm.sup.2, and (iii) an inter-aggregate volume of at least 1 cm.sup.3 /g and an essentially homogeneous inter-aggregate pore population.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.