Method for manufacturing material in the form of granules that can be used as road binder or sealing binder and device for manufacturing same
US11198105B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 5, 2017 |
| Grant date | Dec 14, 2021 |
| Priority date | — |
| Expiry date | Sep 5, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29B2009/163
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method for manufacturing a material in divided form solid at ambient temperature and usable as a road binder or as a sealing binder, such as a road bitumen, a pitch, a stock solution for a bitumen/polymer composition, a clear binder, the method including the implementation of a device intended for granulation having at least two coaxial drums and a horizontal running belt: a fixed inner drum having an orifice and rotating outer drum with orifices, the method including: (i) heating a first composition to a temperature at which it is fluid, (ii) introducing the first composition in the fluid state into the inner drum of the granulation device, (iii) distributing the first composition outwards in drops through the orifices in the rotating outer drum, (iv) depositing the drops on the running belt, and (v) optionally, coating the drops with the second composition. A device for manufacturing these materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.