Albright & Wilson Limited

Robert E Talbot

Kenneth G Cooper

Keith Philip Davis

Trevor E Jones

Nigel S Matthews

Edward Bryan

Malcolm J Turvey

Malcolm A Veale

Mark A Saunders

Stephen Crelling

The biocidal activity of THP (tetrakis hydroxymethyl phosphonium) compounds is synergistically enhanced by using them in conjunction with wetting agents.

Biocidal mixture of tetrakis (hydroxymethyl) phosphonium salt and a

Chlorine dioxide is used to stabilize hydrogen peroxide in bleach liquor at alkaline pH. This is thought to be aided by the destruction of enzymes (especially catalase) produced by bacteria. The method is useful for the reprocessing of pulps, especially when a de-inking stage is involved.

Method of peroxide bleaching of pulp using a peroxide decomposing

Phosphonium salts such as THP and aldehydes such as formaldehyde exhibit synergistic biocidal activity.

Biocidal compositions and treatments

A method for protecting growing plants against fungal or microbial plant pathogens which comprises applying thereto, or to the medium on which they are growing or to be grown, a composition comprising a water soluble tetrakis (hydroxymethyl) phosphonium salt.

Method for protecting growing plants against fungal or microbial path

Solutions of organophosphorus biocides which also contain dissolved oxygen are deactivated by adding a catalytic amount of activated carbon.

Deactivation of phosphonium biocides

A method of treating surfaces colonized or colonizable by bryophites or lichens which comprises applying thereto sufficient of a water soluble tetrakis (hydroxymethyl) phosphonium salt to kill, or inhibit the growth thereon of said bryophytes or lichens.

Method of treating surfaces to control bryophytes or lichens using a

The growth of microbiological contaminants in industrial cooling and process waters and in aqueous based products, susceptible to microbiological spoilage on storage, is inhibited by the presence of a phosphorus compound having a hydroxy alkyl group directly attached to the phosphorus atom, such as tetrakis hydroxy methyl phosphonium sulphate.

Growing community of inventors

Cannock, United Kingdom

Robert E Talbot