Rubber additive granulate, a process for its preparation and its use
US6277901A · kind A · utility
3Cited by
1References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 26, 1998 |
| Grant date | Aug 21, 2001 |
| Priority date | — |
| Expiry date | Jun 26, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2004/50
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention relates to an additive compositions for rubbers and rubber mixtures which contain at least one solid, powdery substance and at least one dispersant, the at least one additive substance being coated with the at least one dispersant. The compositions are present as granulate and are prepared by means of a multi-stage fluidized-bed process. The invention also relates to the use of the additive compositions in the preparation of rubber and products obtained using them.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.