The Dow Chemical Company

Dow Global Technolgoies LLC

Invoy Holdings Inc.

Kemeta, LLC

Kamata, LLC

James A McIntyre

Robert F Phillips

Joseph D Lefevre

Paul E Cranley

Jeffrey Allen

Kristine L Danowski

Bettina M Rosner

Larry Sun

Debkumar Bhattacharjee

Steven P Webb

William Aaron Koonce

Theodore E Miller, Jr

Alan D Strickland

Joan K Vrtis

John R Moyer

Reed A Shick

Barbara E Landini

Venkiteswaran Subramanian

Karel A Snoble

Roberta Druyor-Sanchez

Michael Y Gribble

David Luttrull

Shane Bravard

Reed A Schick

Joseph D Lefever

Max R Oswald

John M Kalnins

Jeffrey R Allen

Some embodiments of the invention provide a mouthpiece for use with an electronic analyzer for breath analyte detection in an individual. The mouthpiece includes a biosensor and a hydration system. The biosensor includes a chemically active area where a chemical reaction takes place and the hydration system delivers a liquid to the chemically active area of the biosensor to at least one of enhance, enable, and facilitate the chemical reaction. The mouthpiece further includes hardware to transmit breath analyte data.

Breath delivery system and method

Described are enzyme systems specific for acetone and methods of using these enzyme systems to detect acetone in biological or environmental samples. Biosensors containing these enzyme systems are disclosed, in which detection of acetone may be achieved by linking electrochemical, photometric, or other detection means to one or more acetone-specific enzyme reactions or pathways. Methods of using such acetone-specific biosensors include subject management of weight loss, disease detection, and bioavailability monitoring of therapeutics. 

Enzyme-based system and sensor for measuring acetone

The subject invention provides a hand-held medical apparatus () for detecting a predetermined component of user breath and producing a breath-component signal over a measurement time. Such breath-component signal may be correlated to a user fat metabolism indicator.

Hand-held medical apparatus

A process for preparing polyurethane films is disclosed, comprising electrodepositing the film onto a substrate from a polyurethane dispersion. One advantage of the electrodeposition process of the present invention is that there is no need for an additional step to remove coagulants from the films, as with conventional coagulation processes. Another advantage is that in using electrodeposition, the amount of water that must be removed during a dewatering step is minimized. A third advantage is that the resulting film demonstrates much greater uniformity in thickness as compare to films prepared by conventional coagulation techniques. The present invention has applicability in, for example, medical applications.

Polyurethane films prepared by electrodeposition from polyurethane dispersions

This invention is a composite membrane for chemical synthesis, a chemical reactor into which the composite membrane might be incorporated, and a method of using the composite membrane. The composite membrane comprises a substrate, a first side, and a second side, wherein the substrate operatively connects the first side and second side, the first side comprises an oxidizing catalyst and the second side comprises a reducing catalyst. The reducing catalyst comprises, in elemental or combinative form, lanthanum, zinc, cerium, praeseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium, bismuth, or indium. A chemical reactor utilizing this composite membrane can react hydrogen and oxygen to form hydrogen peroxide without direct mixture of the reactants.

Composite membrane and use thereof for synthesis of hydrogen peroxide

This invention is a composite membrane for chemical synthesis, a method of using the composite membrane, and a chemical reactor into which the composite membrane might be incorporated. The composite membrane comprises a multiphase conducting path having both a cation conductive phase and an electron conductive phase. Surfaces of the composite membrane can be supplied with appropriate catalyst layers in order to increase favorability of a given reaction. By placing appropriate composition(s) in contact with each surface of the composite membrane, cations and electrons are conducted from one surface through the composite membrane to the other surface in order to form reaction products without the use of an external electrical circuit. A chemical reactor utilizing this composite membrane may safely react such elements as H.sub.2 and O.sub.2 to form H.sub.2 O.sub.2 at room temperature without input of external electricity or use of complex electrical equipment or organic solvents.

Method for chemical synthesis employing a composite membrane

The invention is an electrochemical cell comprising:

Catalyst for the electroreduction of oxygen

A method comprising contacting an organic polymer viscosified halide ion-containing, aqueous solution with a sufficient amount of an in situ, electrochemically generated breaker suitable to reduce the viscosity of the solution.

Electrochemical methods for breaking high viscosity fluids

The invention is a method for dissolving copper in the presence of iron comprising:

Method for dissolving copper in the presence of iron

The invention is a separator-gas electrode combination comprising a separator having a first and a second face adapted to permit the flow of fluids or ions therethrough; a gas electrode adapted to permit a liquid and a gas to enter and exit the electrode and having at least a first and a second face; and a non-conductive self-draining member having a fluid outlet. The self-draining member has at least two faces; at least a portion of a first face contiguous to at least a portion of one face of the separator and at least a portion of a second face contiguous to at least a portion of one face of the gas electrode. The self-draining member has a plurality of interconnected passageways which are in fluid transferring communication with the separator, the gas electrode, and the fluid outlet and provide the major conduit therebetween.

Separator-gas electrode combination

The invention includes in its scope a method for electrochemically reacting a liquid with a gas in an electrochemical cell of the type having at least two electrodes separated by a liquid permeable separator. At least one of said electrodes is in physical contact with the separator and is porous and self-draining. A gas is flowed into at least a portion of the pores of the self-draining electrode and a liquid is controllably flowed through the separator and into the self-draining electrode at a rate about equal to the drainage rate of the electrode and in a quantity sufficient to fill only a portion of the electrode pores. The liquid and the gas are electrochemically reacted to form at least one nonvolatile product. Thereafter, the products of the electrochemical reaction are removed from said self-draining electrode.

Method of operating a liquid-gas electrochemical cell

The invention includes within its scope a method for producing a dual porosity body from a substrate having a plurality of passageways traversing the substrate and connecting a first surface with a generally opposing second surface by depositing a solid material onto the walls of at least a portion of the passageways adjoining only the first surface and stopping the deposition when the diameter of the passageways being coated have been reduced to a predetermined value.

Method for producing a dual porosity body

A particle suitable for use as an electrode material comprising a substrate at least partially coated with an admixture of a hydrophobic material and an electrochemically active, electrically conductive catalyst. The invention includes a method for producing the coated particles.

Electrode material

The invention is an electrochemical cell containing a separator-gas electrode combination comprising a separator having a first and a second face adapted to permit the flow of fluids or ions therethrough; a gas electrode adapted to permit a liquid and a gas to enter and exit the electrode and having at least a first and a second face; and a nonconductive self-draining member having a fluid outlet. The self-draining member has at least two faces; at least a portion of a first face contiguous to at least a portion of one face of the separator and at least a portion of a second face contiguous to at least a portion of one face of the gas electrode. The self-draining member has a plurality of interconnected passageways which are in fluid transferring communication with the separator, the gas electrode, and the fluid outlet and provide the major conduit therebetween. The invention also includes a method for electrochemically reacting a gas with a liquid in the cell above.

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Midland, MI, United States of America

James A McIntyre