Pollution removal composition and use thereof
US10316230B2 · kind B2 · utility
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11Claims
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Key dates
| Filing date | Nov 28, 2013 |
| Grant date | Jun 11, 2019 |
| Priority date | — |
| Expiry date | Nov 28, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K3/32
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A composition includes: (a) at least one neutralizing agent; (b) at least one absorbent agent; and (c) at least one texturing mixture in the form of a mixture including silica gel and an amphoteric texturing agent of which the two pKa (pKa1 and pKa2, pKa1 being less than pKa2) fulfill the following conditions: pKa1>2, pKa2<12, and <(pKa1+pKa2)/2<10. The composition is useful for removal of pollution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.