Process of manufacturing thickeners and the use of thus produced thickeners in high-viscosity epoxy resin formulations

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United States of America Patent

PATENT NO 9670339
SERIAL NO

15355447

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Abstract

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The invention relates to the use of at least one mixed mineral organoclay rheology additive in a liquid composition comprising at least one epoxy resin, the additive comprises or consists of a quaternary alkyl-ammonium salt treated mineral clay mixture prepared by forming an aqueous hormite clay slurry (a), forming an aqueous smectite clay slurry (b), combining the aqueous hormite clay slurry (a) with the aqueous smectite clay slurry (b) to form a combined clay slurry (c), treating the combined clay slurry (c) with one or more quaternary alkyl-ammonium salts, and separating the produced quaternary alkyl-ammonium salt treated mineral clay mixture from the aqueous medium. The invention also relates to a process for producing a mixed mineral organoclay rheology additive and the use of the thus produced additive as a thickening agent in liquid compositions.

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Patent Owner(s)

Patent OwnerAddress
BYK-CHEMIE GMBH46483 WESEL

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Briell, Robert G Seguin, US 6 17
Coutelle, Helmut Freising, DE 12 68
Dziwok, Klaus Freilassing, DE 11 33
Nash, Tyler Dale, US 6 3

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