Encapsulated activator and its use to trigger a gelling system by physical means
US10611949B2 · kind B2 · utility
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16Claims
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Key dates
| Filing date | Oct 13, 2016 |
| Grant date | Apr 7, 2020 |
| Priority date | — |
| Expiry date | Mar 6, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2208/14
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present disclosure relates to aqueous gelling systems comprising an encapsulated polymerization accelerator with water soluble or dispersable monomers comprising acrylated or methacrylated polyethylene and/or polyoxypropylene monomers and a polymerization initiator dispersed in said monomers, useful i.a. for sealing subterranean environments or consolidation of a soil or sealing of a subterranean structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.