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US 10,703,964 B2Granted
Proppant coating having preformed isocyanurate
AssigneeDow Global Technologies LLC
InventorsSachit Goyal, Kaoru Aou, Juan Carlos Medina, Arjun Raghuraman, Armin Hassanzadeh
Life of this patent
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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.
Claims13
A coated proppant, comprising:
- a solid core proppant particle;
- a first resin coating;
- and
- a second coating on the first resin coating, the second coating including 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, the one or more preformed aliphatic or cycloaliphatic based isocyanurate tri-isocyanates being formed prior to formation of the second coating.
1 more element
A method for the preparation of a coated proppant, the method comprising:
- providing a solid core proppant particle;
- providing a first resin coating on the solid core proppant particle;
- and
- forming a second coating on the solid core proppant particle, by reacting 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, the one or more preformed aliphatic or cycloaliphatic based isocyanurate tri-isocyanates being formed prior to formation of the second coating.
1 more element
Dependencies are inferred from the claim text.