Buckman Laboratories, Inc.

Buckman Laboratories International, Inc.

John D Pera

Joseph G Fenyes

John D Buckman

S Rao Rayudu

Stanley J Buckman

Gerald D Mercer

Betty S Johnson

Wood E Hunter

Miguel L Pulido

Philip M Hoekstra

Kenneth J Flanagan

Robert H Buckman

Lawrence S Conaway

Lester A Wienert

Loel L Hickman

Lawrence S Conoway

Marc F Nagel

Robert M Taylor

Compounds of the formula ##STR1## wherein X is an anion selected from the group consisting of phosphate, borate and molybdate groups, and a method for making these compounds. The compounds are useful in the control of microorganisms in aqueous systems and in the inhibition of corrosion of metal surfaces in contact with aqueous systems.

1-methyl-3,5,7-triaza-1-azoniatricyclodecane compounds, a method for

A process for the manufacture of 2-thiocyanomethylthiobenzothiazole. 2-Chloromethylthiobenzothiazole is reacted, in the presence of at least one glycol ether as a solvent for the reaction, with either an alkali metal or an ammonium thiocyanate at a temperature and for a time sufficient to produce the 2-thiocyanomethylthiobenzothiazole.

Process for the production of 2-thiocyanomethylthiobenzothiazole

The present invention relates to a silica-coated calcium pyroborate pigment in particulate form and to its use as a corrosion inhibitor and film preservative in paints.

Fungicidal and corrosion inhibiting paint pigments

1-methyl-3,5,7-triaza-1-azoniatricyclodecane compounds

A method of inhibiting the growth and proliferation of microorganisms by the use of a polymeric quaternary ammonium composition is provided. The composition is prepared by reacting dimethylamine and a polyfunctional amine with epichlorohydrin.

Microbicidal compositions of dimethylamine-epichlorohydrin amines

Novel capped polymeric quaternary ammonium compositions formed by reacting ionene type polymers with tertiary amines are useful as microbicides, corrosion inhibitors, debonding agents, flocculants, softeners, plant growth regulators, and demulsifiers.

Ionene polymeric compositions, their preparation and use

A method of preserving an aqueous system which is susceptible to microbiological degradation, comprising the step of adding to the system a compound having the formula ##STR1## wherein X is an anion selected from the group consisting of sulfate, acetate and citrate groups, and wherein the compound is added in an amount sufficient to inhibit the growth and proleferation of at least one microogranism in the aqueous system. The compounds 1-methyl-3,5,7-triaza-1-azoniatricyclodecane acetate and 1-methyl-3,5,7-triaza-1-azoniatricyclodecane citrate, and a method for preparing these compounds comprising the reaction of ammonium citrate, or ammonium acetate, with methylamine, formaldehyde and ammonia in an aqueous medium.

Novel capped polymeric quaternary ammonium compositions formed by reacting ionene type polymers with tertiary amines are useful as microbicides, corrosion inhibitors, debonding agents, flocculants, softeners, and demulsifiers.

Polymeric quaternary ammonium compounds, their preparation and use

Novel polyquaternary ammonium compounds prepared from N,N'-bis(dialkylaminoalkyl)ureas, hydrochloric acid, epichlorohydrin and tertiary amines are useful as microbicides, corrosion inhibitors, debonding agents, flocculants, softeners, anti-static agents, and demulsifiers.

Polymeric quaternary ammonium compounds and their uses

Quaternary ammonium salts formed by the reaction of hexamethylenetetramine with carboxylic acids and esters, amides and nitriles substituted in the alpha position by chlorine or bromine are preservatives for aqueous solutions, emulsions, and suspensions which are susceptible to microbiological degradation.

Method of preservation of aqueous systems by addition to said systems of

Aminoalkylenephosphonic acids and their alkali metal salts prepared by a reaction utilizing a primary or secondary tetrahydrothiophenamine 1,1-dioxide or the hydrochloride thereof, an aldehyde or a ketone, and orthophosphorous acid are useful in the control of scale and sludge deposition in aqueous systems. When used in combination with known corrosion inhibitors they show synergistic results in inhibiting corrosion of metal surfaces in contact with an aqueous system that is normally corrosive to such metals.

Growing community of inventors

Memphis, TN, United States of America

John D Pera