Use of mesoporous silica
US11142868B2 · kind B2 · utility
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Key dates
| Filing date | Jul 12, 2017 |
| Grant date | Oct 12, 2021 |
| Priority date | — |
| Expiry date | May 17, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2439/70
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A use of organofunctionalized mesoporous silica for the production of recycled paper; the organofunctionalized mesoporous silica comprises a base mesoporous silica having, on its surface, groups having the following general formula (I), wherein Si1 is a silicon atom of the base mesoporous silica, R1 is a C1-C5 aliphatic; R2 is chosen in the group consisting of: a C1-C5 aliphatic and an oxygen atom bound with a silicon atom of the base mesoporous silica; and R3 is chosen in the group consisting of: a hydroxyl, a C1-C5 aliphatic and an oxygen atom bound with a silicon atom of the base mesoporous silica (I).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.