Invention Grant
- Patent Title: Coated particles, methods for their manufacture and for their use as proppants
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Application No.: US16459720Application Date: 2019-07-02
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Publication No.: US10647911B2Publication Date: 2020-05-12
- Inventor: Stephen J. Harasin , Kenneth R. Riddle , Michael T. Wellman
- Applicant: Covestro LLC
- Applicant Address: US PA Pittsburgh
- Assignee: Covestro LLC
- Current Assignee: Covestro LLC
- Current Assignee Address: US PA Pittsburgh
- Agent Donald R. Palladino; Jed C. Benson
- Main IPC: C09K8/80
- IPC: C09K8/80 ; C09D175/06 ; E21B43/267 ; E21B43/26 ; C08G18/66 ; C08L75/04 ; C08G18/24 ; C08G18/28 ; C08G18/78 ; C09K8/62 ; C08G18/76 ; C08G18/32 ; C08G18/42
Abstract:
Disclosed are coated particles. The coated particles include substrate particles and a coating disposed over at least a portion of the substrate particles. The coating includes a condensation reaction product of a reaction mixture that includes a liquid isocyanate-functional component and an isocyanate-reactive composition. Also disclosed are methods for making such particles and methods for using such particles as proppants in hydraulic fracturing.
Public/Granted literature
- US20190330521A1 COATED PARTICLES, METHODS FOR THEIR MANUFACTURE AND FOR THEIR USE AS PROPPANTS Public/Granted day:2019-10-31
Information query
