US 12,187,959 B2
Emulsion polymers and methods for improving pumpability
Kerry Charles Brinkman, Sugar Land, TX (US); Izabela A. Owsik, College Station, TX (US); Chad Gilmer, Richmond, TX (US); Anoop Chengara, Iowa Colony, TX (US); Pious Kurian, Sugar Land, TX (US); Tri T. Phan, Sugar Land, TX (US); Jeremy Moloney, Katy, TX (US); and Michael Cash, Richmond, TX (US)
Assigned to ChampionX LLC, Sugar Land, TX (US)
Filed by ChampionX USA Inc., Sugar Land, TX (US)
Filed on Jul. 28, 2023, as Appl. No. 18/361,113.
Claims priority of provisional application 63/369,895, filed on Jul. 29, 2022.
Prior Publication US 2024/0034922 A1, Feb. 1, 2024
Int. Cl. C09K 8/524 (2006.01); C09K 8/54 (2006.01)
CPC C09K 8/524 (2013.01) [C09K 8/54 (2013.01); C09K 2208/22 (2013.01); C09K 2208/28 (2013.01); C09K 2208/32 (2013.01); C09K 2208/34 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A polymer composition comprising:
an oil-in-water emulsion comprising
an aqueous phase comprising water and an emulsifying surfactant having a cloud point of less than 80° C. and a hydrophilic-lipophilic balance (HLB) of greater than or equal to 8, and
an oil phase comprising a high molecular weight oil-soluble polymer, wherein the oil-soluble polymer comprises a copolymer derived from reaction of a hydrophobic monomer and an ionizable monomer in a weight ratio from about 999:1 to about 80:20.