Shell Oil Comapny

Shell Internationale Research Maatschappij, B.v.

Michael Pearson

John H Davies

Anne C Udding

Thomas W Naisby

William W Wood

Andrew C Gray

Michael John Grundy

Susan J Turner

Arthur C Wilson

Tarnia M Machin

Peter A Van Leeuwen

Jack Wood

Fuel oil composition

The invention provides molybdenum-containing complexes prepared by reacting a carboxylic acid or metal salt thereof, an amine and a source of cationic molybdenum, wherein the ratio of the number of equivalents of acid groups to the number of moles of molybdenum (eq:mol) is in the range from 1:10 to 10:1, and the ratio of the number of equivalents of acid groups to the number of moles of amine (eq:mol) is in the range from 20:1 to 1:10; a process for their preparation; lubricating oil compositions containing them; and their use as friction-reducing additives.

Molybdenum-containing friction-reducing additives

Compounds of the general formula ##STR1## where R.sup.2 and R.sup.3 together, or R.sup.3 and R.sup.4 together, represent an optionally substituted hydrocarbyloxy chain; the ring is optionally substituted at any or each of the remaining sites R.sup.5, R.sup.6 and R.sup.2 or R.sup.4 : n represents 0 or 1; and X represents a cyano group, a group --COOH or a salt, ester or amido derivative thereof; are biocidal, showing activity against fungi, yeast, bacteria and nematodes. Some such compounds, and intermediates therefore, are novel.

Bicyclic or tricyclic biocidal compounds

The invention provides nitromethylene compounds of general formula ##STR1## wherein n is 2, 3, or 4, R.sup.1 is an optionally substituted 3-pyridyl group, each R.sup.2 is independently selected from an alkyl group, a haloalkyl group or a hydrogen atom, and R.sup.3 is a hydrogen atom or an alkylcarbonyl group, processes for their preparation, and their use as pesticides, particularly insecticides.

N-pyridyl nitromethylene heterocyclic compounds and their use as

2-Iminothiazoline derivatives of the formula: ##STR1## and the corresponding 4,5-dihydro counterparts, wherein the respective meanings of the symbols are set forth in the specification, useful as insecticides and acaricides.

Pesticidal 2-iminothiazoline derivatives

Growing community of inventors

Sittingbourne, United Kingdom

Michael Pearson