SYNTHETIC METHOD FOR THE PREPARATION OF RHEOLOGICAL MODIFYING POLYMERS AND THE USE THEREOF

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United States of America Patent

APP PUB NO 20210317249A1
SERIAL NO

17261122

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Abstract

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The invention relates to a UV-initiated RAFT-type polymerization for producing hydrophobically associative terpolymers in an aqueous solution. The terpolymers produced by this method can be used as aqueous rheological modifiers. Specifically, the invention relates to a hydrophobically associating terpolymers and a method to produce same using a light initiated iniferter. The monomers used in the present invention are selected from: a monomer having a water-soluble monoethylenically unsaturated group; a monomer having an ionic water-soluble monoethylenically unsaturated group; and a monomer having a monoethylenically unsaturated monomer capable of forming hydrophobically associative bonds in aqueous medium. The iniferter is initiated with light of wavelength between 250-400 nm. The resultant terpolymer is produced in a cost-effective, simple, and one-step process and can be used to thicken aqueous mediums with less or equal amounts of polymer than currently available.

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Patent Owner(s)

Patent OwnerAddress
POLYANALYTIK INC700 COLLIP CIRCLE SUITE 202 LONDON ON N6G 4X8

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ebied, Amer London, CA 4 14
Landry, Eric D London, CA 2 0
Oyeneye, Olabode O London, CA 3 2
Paquette, Joseph A London, CA 2 2

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