Process for reducing the color of an emulsion containing functionalized polyolefin wax
AssigneeEastman Chemical Company
InventorsPaul Andrew Rundquist, Ernest Phillip Smith, Stephen Louis Poteat, Dante Joseph Rutstrom, Richard Kingsley Stuart, Jr.
Life of this patent
Estimating the term…
Abstract
Disclosed herein is a method for reducing the color of an emulsion of functionalized polyolefin wax by treating an emulsion with a water soluble oxidizing agent at a temperature above the freezing point and below the boiling point of the emulsion and below the softening point of the wax. Disclosed herein, also, is the essentially colorless emulsion produced according to the disclosed method which is useful as an additive to floor polishes and other coating products.
Claims15
A method of reducing the color of a wax emulsion, comprising treating a wax emulsion with a water soluble oxidizing agent at a temperature above the freezing point and below the boiling point of the emulsion and below the softening point of the wax, wherein said wax emulsion contains functionalized polyolefin wax, water and surfactant.
A composition comprising an essentially colorless emulsion having a translucent appearance and having a correlate of perceived chroma value (C*) of at least 8.5, according to the Commission Internationale De L'Eclairage (CIE) colorimetric scale, determined using the D65 standard illuminant and the 10 degree standard observer, said emulsion comprising:
- (a) at least 55 weight percent water, based on the total weight of the emulsion;
- (b) at least 20 weight percent, based on the total weight of the emulsion, of suspended particles of maleated polypropylene wax having an average particle diameter less than about 0.1 micron, said functionalized polyolefin wax having a polydispersity index of less than 0.5 and a weight average molecular weight of at least 1,000;
- and
- (c) a surfactant.
Dependencies are inferred from the claim text.