Monsanto Company

Quentin E Thompson

John F Herber

James W Gambell

Ralph H Munch

Michael C Robach

James Kern Sears

A heat transfer fluid which maintains a low hydrogen permeation rate at temperatures of 350.degree.-400.degree. c. or higher and its pumpability at temperatures of -10.degree. C. or lower is provided. The fluid is especially useful in solar energy collection applications. A method of reducing fluid impurities from polyphenyls is also disclosed.

Heat transfer fluids

Certain furanones are shown to inhibit growth of food poisoning organisms in laboratory culture media.

Method for inhibiting growth of food poisoning organisms

Biodegradable functional fluids useful as dielectric fluids, heat transfer fluids, hydraulic fluids, plasticizers or dye solvents comprise at least one halogenated diphenylmethane compound represented by the structure ##STR1## where each X is individually chlorine, bromine or fluorine; n is a whole number from 1 to 4; each R is individually an alkyl group having from 1 to 5 carbon atoms; and m is zero or a whole number from 1 to 3.

Hydraulic pressure device utilizing biodegradable halogenated diphenyl

Benzyl aryl ethers are useful solvents for chromogenic materials in preparing pressure-sensitive record material wherein a colorless or substantially colorless chromogen is reacted in the presence of a benzyl aryl ether solvent with an acidic sensitizing material to form a colored mark in a pattern determined by the application of localized pressure to the record material. The benzyl aryl ether solvents are heat stable and give particularly fast color development on phenolic resin coated papers.

Growing community of inventors

Belleville, IL, United States of America

Quentin E Thompson