公开(公告)号：NZ712155A

公开(公告)日：2020-11-27

申请号：NZ71215514

申请日：2014-03-11

Applicant: BASF SE

Inventor： FITZGERALD SHAWN ,  KLOTS TIMOTHY ,  TANGUAY CHRISTOPHER

IPC: C09K8/80 ,  C09K8/62 ,  E21B43/267

Abstract: A proppant includes a particle present in an amount of from 90 to 99.5 percent by weight 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 and an isocyanate. The acrylate copolymer includes styrene units and has a hydroxyl number of from 20 to 500 mg KOH/g. A method of forming the proppant includes the steps of combining the acrylate copolymer and the isocyanate to react and form the polymeric coating and coating the particle with the polymeric coating to form the proppant.

公开(公告)号：EP3204444A4

公开(公告)日：2018-05-16

申请号：EP15848199

申请日：2015-10-07

Applicant: BASF SE

Inventor： CALHOUN ERIC ,  KLOTS TIMOTHY

IPC: C08G79/02 ,  C08F230/02 ,  C08G18/62 ,  C08G18/79 ,  C08L85/02 ,  C09D143/02 ,  C09D175/04 ,  C09D185/02

CPC classification number: C08G18/6233 ,  C08F230/02 ,  C08G18/792 ,  C08G79/02 ,  C08L85/02 ,  C09D143/02 ,  C09D175/04 ,  C09D185/02

Abstract: A composition includes a polyphosphoric acid-modified acrylic polyol, wherein the polyphosphoric acid-modified acrylic polyol has greater than zero, but less than 1.0 wt % modification with polyphosphoric acid.