Pilot Polymer Technologies, Inc.

Atrp Solutions, Inc.

Sparkling Tycoon Limited

Yuanxi Liao

Patrick McCarthy

Liang Huang

Hao Zhang

Donald Bogus

Patrick Mccarthy

Provided herein are perfluoro copolymers of a perfluoro dioxole monomer, a perfluoro dioxane monomer, and an optional perhalo monomer. Methods of making the perfluoro copolymers and methods of using the perfluoro copolymers are also disclosed.

Perfluoro copolymers

The present invention relates to a composition comprising at least one sulfonated surfactant composition and one or more multi-arm star macromolecules having a core and a plurality of polymeric arms, and methods of preparing and using the same. In one aspect of the invention, this composition is capable of increasing the viscosity, and/or temperature-stability to an aqueous system.

Combination of a sulfonated surfactant composition and star macromolecules

The present invention relates to multi-arm salt-tolerant star macromolecules, and methods of preparing and using the same. In one aspect of the invention, a salt-tolerant star macromolecule is capable of providing salt-tolerance to an aqueous composition.

Salt-tolerant star macromolecules

The present invention relates to multi-arm star macromolecules which are used as thickening agents or rheology modifiers, including use in hydraulic fracturing fluid compositions. In one aspect of the invention, a star macromolecule is capable of thickening via a dual mechanism comprising (1) self-assembly of the hydrophobic polymerized segments of the star macromolecules via hydrophobic interactions or associations, and (2) association, reaction, or combination of the hydroxyl-containing polymerized segments of one or more of the star macromolecules.

Dual-mechanism thickening agents for hydraulic fracturing fluids

The present invention relates to multi-arm surfactant-system thickening star macromolecules, and methods of preparing and using the same. In one aspect of the invention, a surfactant-system thickening star macromolecule is capable of providing surfactant-compatibility, increase the viscosity of a surfactant-containing system, and/or temperature-stability to an aqueous composition.

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Pittsburgh, PA, United States of America

Yuanxi Liao