发明名称 |
A PROPPANT |
摘要 |
A proppant comprises a particle present in an amount of from 90 to 99.5 percent by weight based on the total weight of the proppant, and a polymeric coating disposed about the particle and present in an amount of from 0.5 to 10 percent by weight based on the total weight of the proppant. The polymeric coating includes the reaction product of an acrylate copolymer comprising styrene units and having a hydroxyl number of from 20 to 500 mg KOH/g or an acid value of from 20 to 500 mg KOH/g, and an epoxy and/or a melamine. |
申请公布号 |
EP2970756(A1) |
申请公布日期 |
2016.01.20 |
申请号 |
EP20140715523 |
申请日期 |
2014.03.14 |
申请人 |
BASF SE |
发明人 |
FITZGERALD, SHAWN;TANGUAY, CHRISTOPHER, M.;KLOTS, TIMOTHY, D. |
分类号 |
C09K8/80;C09K8/62;E21B43/267 |
主分类号 |
C09K8/80 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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