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US 2016/0236982 A1Published application
Additive for suspensions
AssigneeSabanci Universitesi
InventorsYusuf MENCELOGLU, Omid AKHLAGHI, Özge AKBULUT
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AssigneeSabanci Universitesi
InventorsYusuf MENCELOGLU, Omid AKHLAGHI, Özge AKBULUT
Estimating the term…
The present invention proposes a polyczuboxylate ether-based additive having the general formula (I) for use as flow modifier in suspensions. The present invention further proposes a method for obtainment of such additive, wherein the method comprises the sequential steps of esterification of polyethylene glycol (PEG) with maleic anhydride (MA) and thus obtainment of a chemical product (PEGMA) and free radical polymerization in a mixture comprising acrylic acid (AA), 2-acrylamido-2 methylpropanesulfonic acid (AMPS) and PEGMA as reactants, further comprising water and an initiator, initial pH value of said mixture is within the range between 7.5 and 8.5, and any free oxygen is removed from the mixture throughout the free radical polymerization.
A polycarboxylate ether-based additive (PCE) having the general formula (I) for use in suspensions,
A method for obtainment of a polycarboxylate ether-based additive for use in suspensions, wherein the method comprises the sequential steps of:
A method according to the claim 4, wherein the total reactants content in the mixture of step (b) is between 10 to 20% w/w, and more preferably between 12 to 18% w/w.
Dependencies are inferred from the claim text.