Other

Symbiotech Incorporated

Olin Corporation

University of Connecticut

University Patents, Inc.

Robert W Coughlin

Marvin Charles

Edward M Davis

Jon R Geiger

John D Nelson, Jr

Michael W Glynn

Robert F Vieth

Robert T Vinopal

Billy R Allen

A Halim El-Sayed

Wafaa M Mahmoud

Pramod Z Rao

Disclosed herein is an antimicrobial composition characterized by synergistic antibacterial and antifungal efficacy and comprising a pyrithione salt or pyrithione acid, and at least one compound selected from the group consisting of benzyl and lower alkyl esters of para-hydroxybenzoic acid, salts thereof, carboxylic acids, salts thereof, and combinations thereof. Also disclosed is a method of imparting antimicrobial activity to a composition comprising water or an organic solvent which comprises adding thereto an antimicrobially effective amount of the above-described antimicrobial composition.

Synergistic biocide composition containing pyrithione plus an additive

Solid residues formed as byproducts during the refining of sugars (e.g., beet sugar or cane sugar) are employed to sorb acidic gases such as oxides of sulfur or nitrogen. Calcines of the solid residues can also be used. Sorption of acidic gases from gaseous mixtures containing acidic gases is thus accomplished.

Sorption of acidic gases by solid residue from sugar refining

Method and apparatus are provided for accomplishing improved separation and purification of an analyte by mass transfer between immiscible phases employing microporous hollow-fiber membranes. The invention eliminates several problems of the prior art. A number of possible modes of separation by mass transfer are possible according to the invention, including liquid-liquid extraction, back extraction, simultaneous forward and back extraction, gas absorption into a liquid, gas stripping from a liquid and simultaneous gas absorption and stripping.

Purification of samples by interphase mass transfer using microporous

Method and apparatus are provided for accomplishing improved liquid-liquid extraction employing microporous hollow-fiber membranes. A number of possible modes of liquid-liquid extraction are possible according to the invention.

Preparation of analytical samples by liquid-liquid extraction using

Method and apparatus are provided for the bioconversion of toxic substrates with increased yields of product. The invention makes use of immobilized cells as biocatalyst and complexing agent in either dissolved or solid form. The invention also employs various schemes and apparatus for separating immobilized cells and complexing agent for recycle and re-use in bioconversion reactions. A preferred embodiment of the invention produces improved yields and titers of L-phenylacetyl carbinol by the bioconversion of acetaldehyde using yeast cells.

Enhanced bioconversion of toxic substances

A particle which is capable of removing heavy metal ions from aqueous solution, which comprises chitin having formed thereon a layer of chitosan, wherein the particle has a size of from 0.2 to 1.5 cm, and the chitosan layer on the surface thereof has a depth of form 0.01 microns to 10% of the particle diameter.

Partially treated shellfish waste for removal of heavy metals from

An activated carbon sorbent in which oxygen has been substantially removed from said carbon by outgassing and said oxygen has been replaced by subsequent reaction of the outgassed carbon with a passivating substance.

Desensitizing activated carbon sorbents to the effects of humidity

Electrochemical method and associated apparatus permit carbonaceous materials to be gasified to carbon oxides under mild conditions with the attendant formation of fuels or high energy intermediates such as hydrogen, or light hydrocarbons and production of electric power.

Method of gasifying carbonaceous materials

Electrochemical gasification of carbonaceous materials by anodic oxidation produces oxides of carbon at the anode and hydrogen or metallic elements at the cathode of an electrolysis cell. In another embodiment carbonaceous materials are hydrogenated at the cathode by electrochemical reactions during which carbonaceous material may also be anodically reacted within the anode compartment of an electrolysis cell.

Method for electrowinning metals

Insoluble supports are preactivated by precipitating thereon a hydrous metal oxide employing a hydrolysis reaction of a salt of said metal in the presence of said insoluble support. The resulting composite materials are employed as supports for immobilizing biologically active substances.

Method of immobilization of biologically active organic substances

A liquid stream containing the reactants is passed through a bed of enzyme catalyst, made up of enzymes bonded to small, dense particles of carrier or support materials, in a manner which causes the bed to expand or fluidize and a chemical reaction is thereby carried out in a process that is simultaneously free from limitations due to plugging and excessive pressure drop and which also has the advantage of the high mass transfer rates that can be realized between the liquid and small particles.

Method of carrying out enzyme catalyzed reactions

A liquid stream containing the reactants is passed through a bed of enzyme catalyst, made up of enzymes bonded to small, dense particles of carrier or support materials, in a manner which causes the bed to expand or fluidize and a chemical reaction is thereby carried out in a process that is simultaneously free from limitations due to plugging and excessive pressure drop and which also has the advantage of the high mass transfer rates that can be realized between the liquid and small particles. Reactions are carried out in this manner using enzymes bound to porous and non-porous inorganic supporting particles. This process has been employed for treating cheese whey with the enzyme lactase in a fluidized bed of inert particles to which the lactase is bound.

Growing community of inventors

Storrs, CT, United States of America

Robert W Coughlin