Inerting process for impurities
US9624129B2 · kind B2 · utility
0Cited by
6References
22Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 12, 2010 |
| Grant date | Apr 18, 2017 |
| Priority date | — |
| Expiry date | Nov 14, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B28/02
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An inerting process for impurities in aggregates intended for preparation of hydraulic or hydrocarbon compositions, includes adding to the composition or to one of its constituents a cationic polymer corresponding to at least one derivative of a natural polymer or a polymer of natural origin selected from the group including dextrin (in particular yellow dextrin and white dextrin), chitosan, chitin, alginates, hemicellulose, pectin, polyols or proteins.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.