Proppant coating having preformed isocyanurate
US10703964B2 · kind B2 · utility
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Key dates
| Filing date | Mar 22, 2016 |
| Grant date | Jul 7, 2020 |
| Priority date | — |
| Expiry date | Mar 22, 2036 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/267
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A coated proppant includes a solid core proppant particle, a first resin coating, and a second coating on the first resin coating. The second coating includes the reaction product of one or more curatives and one or more preformed aliphatic or cycloaliphatic based isocyanurate tri-isocyanates, derived from aliphatic diisocyanates, cycloaliphatic diisocyanates, or a combination of aliphatic and cycloaliphatic diisocyanates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.