Ethox Chemicals, LLC

Edward R Godwin

Paul David Weipert

James T Tanner

Charles V Hinton

Lawrence C Davis

Richard Walton

Charles Francis Palmer, Jr

Gerald Vandezande

Charles Francis Palmer

Jr Charles Francis Palmer

An epoxy or hardener mixture comprising (a) optionally water, (b) at least one hardener or epoxy resin, and (c) from 0.1 to 20 weight percent, based on epoxy resin of at least one distyryl phenol, tristyryl phenol or cumylphenol based additive surfactant with phosphate or sulfonate end groups having the structure R&#x2014;OXn-W wherein R designates a polystyrylphenol or cumylphenol, preferentially chosen from among distyrylphenol, tristyrylphenol or cumylphenol, and mixtures thereof, and wherein OX designates ethylene oxide and/or propylene oxide. The number of groups 'n' varies from 0 to 200, and W designates H, sulfate (&#x2014;SO) or phosphate (&#x2014;POH or &#x2014;PO&#x2014;OXnR). Freeze thaw resistance and improved stability is obtained in epoxy mixtures used in dispersion form. Improved pot life and cure time is obtained using either the epoxy mixture, the hardener mixture or a combination of the two in epoxy hardener formulations.

Water borne epoxy resin dispersions and epoxy hardener compositions

The present invention relates to the use of Styrenated Phenol Ethoxylates as surfactants in emulsion polymerization. The present invention further relates to the use of both anionic and nonionic Styrenated Phenol Ethoxylates in emulsion polymerization. Latexes with small average particle and narrow particle size distributions are obtained. Prepared latexes also have low coagulum levels and exhibit excellent mechanical and chemical stability.

Styrenated phenol ethoxylates in emulsion polymerization

The present invention provides a dispersant for aqueous and non-aqueous systems which can disperse insoluble fine powders in non-aqueous liquids in a short period of time and give long-term dispersion stability to the resulting dispersions without allowing the formation of hard cake or precipitates. The dispersant is a compound of the formula wherein SO is styrene oxide; R is a C-Csaturated or unsaturated group; x=0-100; y=1-3; z=0-100 and s=0-100. The dispersant of the invention is also particularly effective for dispersing additives into polymers such as polyesters, polyamides, polycarbonates, polyethylene and polypropylene.

Dispersions containing fatty acid esters of styrenated phenol alkoxylates

The present invention provides a dispersant for aqueous and non-aqueous systems which can disperse insoluble fine powders in non-aqueous liquids in a short period of time and give long-term dispersion stability to the resulting dispersions without allowing the formation of hard cake or precipitates. The dispersant is a compound of the formula wherein SO is styrene oxide; R is a C&#x2013;Csaturated or unsaturated group; x=1&#x2013;100; y=1&#x2013;3; z=1&#x2013;100 and s=1&#x2013;100. The dispersant of the invention is also particularly effective for dispersing additives into polymers such as polyesters, polyamides, polycarbonates, polyethylene and polypropylene.

The present invention provides sulfated and carboxymethylated surfactants and dispersants produced by reacting a styrenated phenol alkoxylate with sulfamic acid and then neutralizing with a base such as ammonium hydroxide. The instant invention also provides pigment dispersion comprising: (a) a pigment; and (b) a dispersant based on sulfated and carboxymethylated styrenated phenol alkoxylates. Carbon black dispersions are also provided containing carbon black and the dispersants of the invention.

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Davidson, NC, United States of America

Edward R Godwin