The Dow Chemical Company

Dow Global Technolgoies LLC

Washington State University

Dowelanco

James J Jakubowski

Wayne R Willkomm

Rick L Tabor

James E Pate, Iii

Alan K Schrock

Robert A Kirchhoff

Richard Allen Lundgard

Daniel H Haigh

Ralph D Priester, Jr

Ronald R Pelletier

Victor E Meyer

Wilfred C Meyer

James Peters

Douglas R Moore

Lisa J Rheaume

Ruben Solis

James G Kennedy

Michael Y Gribble

Ravanasamudram V Subramanian

Paulus C J M Van Bellegem

Julia A Gegner

Werner A Lidy

James E Iii Pate

Ralph D Priester

Disclosed are stable aqueous polyurethane latexes prepared from prepolymer formulations including a polyisocyanate component and polyol component, wherein from 5 to 40 percent of the weight of the polyol component is ethylene oxide in the form of ethylene oxide applied as an end cap onto a propylene oxide or higher oxyalkylene polyoxyalkylene polyol, and no more than 45 percent of the weight of polyol component is ethylene oxide. These latexes are prepared without the use of organic solvents.

Polyurethane latexes, processes for preparing them and polymers prepared therewith

The present invention provides a process for preparing a stable dispersion of a preformed polymer in a polyol in a single mixer. A preformed polymer is mixed under sufficient heat and shear to reduce its particle size to a desired size in the presence of a polyol. The present invention also provides stable dispersions of polymers in polyols and polyurethane formulations containing stable dispersions made by the process of the present invention.

Dispersion of a preformed polymer in a polyol

The present invention is polyurethane dispersion composition that can be mechanically frothed to yield a foam that has good resiliency. Frothed foams of the present invention can be useful in cushioned flooring applications such as attached cushion broadloom, carpet tiles, carpet underlay, or vinyl flooring. Frothed foams of the present invention can also be useful as coatings for various textiles and for diapers.

Polyurethane foams prepared from mechanically frothed polyurethane dispersions

A polyurethane/urea/thiourea latex having a narrow molecular weight polydispersity and sub-micron particle size can be prepared by first preparing a high internal phase ratio (HIPR) emulsion of a polyurethane/urea/thiourea prepolymer, then contacting the emulsion with a chain-extending reagent under such conditions to form the polymer latex.

Continuous process for preparing a polyurethane latex

The invention concerns certain insecticidal compositions of ingestible insecticides selected from the group consisting of DNA viruses, RNA viruses and bacteria of the order Bacillus such as, for example, Bacillus thuringiensis var. israelensis entrapped by a suitable charged polymer. The invention also concerns a process for the preparation of and the use of such insecticidal compositions.

Insecticidal compositions and process for preparation thereof

This invention is a froth flotation process for beneficiating finely sized mineral matter from a finely sized mineral ore pulp comprising floating the finely sized mineral ore pulp in a frothing aqueous medium comprising a collector and a carrier particle in an effective amount for beneficiating the finely sized mineral matter by flotation, wherein the carrier particles are adapted for selectively floating the finely sized mineral matter. The carrier particles of this invention should have a particle size and a density which are suitable for selectively beneficiating the finely sized mineral ore particles by froth flotation and have a surface treated with a condensation product, or acid derivative of a condensation product, of an alkanolamine with a fatty acid, a fatty acid ester, a dibasic fatty acid or a tribasic fatty acid, in a sufficient amount to render the carrier particle sufficiently hydrophobic to float in the frothing aqueous medium.

Carrier particle for the froth flotation of fine ores

A filled resin composition having thixotropic properties is prepared by blending (a) a liquid polyester resin, and (b) a solid filler (such as calcium carbonate), which has been treated with an effective amount of a polymer prepared from (1) an addition polymerizable organic monomer which does not contain an acid group and (2) an addition polymerizable acid. The preferred polymer is ethylene/acrylic acid.

Thixotropic mixtures of liquid polyesters and polymer-treated fillers

Filler particles useful for filling organic resins such as polyethylene are produced by mixing a filler, such as calcium carbonate, with a halogenated polar polymer such as a halogenated ethylene/acrylic acid copolymer. The fillers of the invention impart improved physical properties such as tensile, flexural and impact strength to organic resins.

Halogenated polar polymer treatment of inorganic fillers

Carbon fibers are electrocoated by electrodeposition or electropolymerization to facilitate the formation of char, a nonconductive residue or fiber clumps when the coated fibers within a composite are subsequently exposed to fire. Coating materials or precursors are phosphorus compounds, titanates, polyimides, polyquinoxalines, nitriles, or boric acid.

Treatment of carbon fibers to decrease electrical hazards of conductive

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Midland, MI, United States of America

James J Jakubowski