Petrolite Corporation

Patrick M Quinlan

Richard D McBride

This invention relates to compositions of the formula ##STR1## where R is a hydrocarbon, A is alkylene, and Z is S, SO, SO.sub.2, and salts thereof. This invention also relates to uses thereof, for example as microbiocidal agents, corrosion inhibitors, etc.

Quaternary ammonium derivatives of 1,4-thiazine sulfonic acids

There is described a composition comprising an acylated, alkylated polyamine, an alkylated polyamine, an alkynol and a surfactant. The compositions are useful as corrosion inhibitors for acid systems and ferrous pickling systems and in acidizing media in the treatment of oil-bearing earth formations.

Acid inhibitor composition

Inhibiting corrosion with quaternary ammonium derivatives of

Quaternary ammonium derivatives of 1,4 thiazine sulfonic acids

This invention relates to non-halogen salts of nitrogen and/or nitrogen-sulfur heterocyclics as corrosion inhibitors for stainless steel-containing systems. These are more effective as corrosion inhibitors when employed in combination with surfactants, preferably of the non-ionic type such as oxyalkylates.

Halide free octahydrophenanthridine corrosion inhibitors

Mixtures of non-halogen salts of nitrogen heterocyclics and

Halide free corrosion inhibitors

This invention relates to alkylated derivatives of polymerized aromatic nitrogen heterocyclic compounds as illustrated by polymerized pyridine, quinoline and derivatives thereof; and uses thereof. These compositions are polymerized by treating said aromatic nitrogen heterocyclic compounds at elevated temperatures and pressures with catalytic amounts of alkyl halides and then alkylating the polymerized products formed. The compositions used in this invention are useful in providing improved means for controlling microbiological organisms including bacteria, fungi, algae, protozoa and the like, present in water and hydrocarbon systems.

Use of quaternized derivatives of polymerized pyridines and quinolines

This invention relates to quaternary ammonium salts of .alpha.-1,4-thiazine alkanephosphonic acids; and to the preparation and uses thereof.

Quaternary ammonium salts of .alpha.-1,4-thiazine alkanephosphonic acids

This invention relates to silicon-containing thiazines and to the process of preparing them. These are illustrated by the following formulae: ##STR1## where R and R' are substituted groups, for example hydrocarbon groups such as alkyl, aryl, cycloalkyl, etc.; A is alkylene, Z is a sulfur-containing group such as S, SO, SO.sub.2 and X is an anion. These compositions have a wide variety of uses including their use as corrosion inhibitors, microbiocides, etc.

Silicon-containing quaternary ammonium thiazines

This invention relates to thiazine quaternary ammonium salts of polyepihalohydrin and the preparation and uses thereof. The compositions are ideally expressed by the polymer unit ##STR1## where Z is S, SO, or SO.sub.2,

Inhibition of microbiological growth with thiazine quaternary ammonium

Inhibition of corrosion with thiazine quaternary ammonium salts of

This invention relates to .alpha.-1,4-thiazine alkanephosphonic acids; and to the preparation and uses thereof.

.alpha.-1,4-Thiazine alkanephosphonic acids

This invention relates to alkylated derivatives of polymerized aromatic nitrogen heterocyclic compounds as illustrated by polymerized pyridine, quinoline and derivatives thereof; and uses thereof. These compositions are polymerized by treating said aromatic nitrogen heterocyclic compounds at elevated temperatures and pressures with catalytic amounts of alkyl halides and then alkylating the polymerized products formed. The polymers of this disclosure are useful in many areas including utility as corrosion inhibitors, water clarification, as microbiocides, in resolving emulsions and the like.

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Webster Groves, MO, United States of America

Patrick M Quinlan