3 patents
Utility
Surfactant, Dispersion and Adhesive Composition
6 Jul 23
The invention relates to a surfactant comprising a grafted rosin ester which is a rosin ester grafted with a capped polyalkylene glycol, wherein the capped polyalkylene glycol is a polyalkylene glycol capped by an alkyl ether and an aqueous dispersion consisting of an aqueous phase and resin particles dispersed in the aqueous phase, wherein the dispersion comprises the surfactant according to the invention.
John HAZEN
Filed: 3 Jun 21
Utility
Polyamide resins for coating of sand or ceramic proppants used in hydraulic fracturing
6 Apr 20
A proppant includes coating of a polyamide resin.
Eva Ramos, John Schneider
Filed: 4 Jan 16
Utility
Biorenewable Resin Composition for Well Treatment
25 Dec 19
A proppant includes coating of a lignin containing phenolic resin.
Eva RAMOS
Filed: 22 Jan 18
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