Albright & Wilson Limited

Michael Blezard

Glyn R Jones

Edward T Messenger

William John Nicholson

Boyd William Grover

Michael John Williams

Moharam Ghadimi

John Hawkins

Aqueous structured surfactants, e.g., lamellar, or preferably spherulitic systems optionally containing suspended solids are used as functional fluids, such as drilling fluids, cutting fluids, hydraulic fluids, heat transfer fluids, construction muds and lubricants. A composition consisting essentially of: water; a surfactant or mixture of surfactants present in a concentration sufficient to form a mobile spherulitic or dispersed lamellar phase in the absence of an electrolyte; and a substantially water insoluble functional material, suspended in the composition, the composition being substantially free from electrolyte.

Functional fluids and liquid cleaning compositions and suspending media

A synergistic mixture of a carbonate and/or bicarbonate with a phosphonate, especially an organoamino methylene phosphonate or an N-oxide thereof, inhibits or reduces nitrosamine contamination during preparation, storage and/or heating of products which are susceptible to contamination with nitrosamine.

Nitrosamine and nitrite inhibition

Bicarbonates and/or carbonates are used in greater than catalytic amounts to inhibit the formation of nitrosamines during the preparation, storage and/or use of amine oxides.

Nitrosamine inhibition

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Whitehaven, United Kingdom

Michael Blezard