Imperial Chemical Industries Limited

Roger I Hancock

Nigel W Hayman

Richard H Still

Kenneth M Jones

Tahir H Shah

Stanley R Dawber

Raymond Peters

John R Wright

Alan S Baker

Paul Hepworth

Terence Cox

Kathleen M Morrison

Elastomeric block co-polyesters having improved elastic and work recovery properties, a high melting point and are stable at high temperatures, have hard segments comprising at least 50 mole percent of polyethylene terephthalate groups and soft segments comprising at least 40 weight percent of the block copolyester. The soft segments, which have a defined structure, are formed by reacting phenolic compounds with a mixture of ethylene oxide and propylene oxide/butylene oxide.

Elastomeric polymers

Liquid detergent compositions comprise 25-60% by weight of solids suspended in a liquid phase comprising at least 20% by weight of a condensation product of ethylene oxide with a mono- or di- or tri- hydroxy alkane having 1 to 4 carbon atoms having an average molecular weight in the range 150 to 600. The solids comprise a builder and optionally a bleach, and the liquid phase preferably comprises a surfactant.

Detergent compositions

A conductive polymer comprising a fiber-forming synthetic polymer having dispersed therein as a separate phase between 1% and 20% by weight inclusive based on the polymer of a polyalkoxylated phenol-formaldehyde condensate. Conductive fibers may be produced by melt spinning the conductive polymer.

Conductive polymers, fibers made therefrom and process for manufacture

A liquid detergent composition which comprises a dispersion of solids comprising one or more builders and a bleach, the solids having an average particle diameter of less than 10 microns in a substantially water free non-ionic liquid surfactant which has a pour point of less than 10.degree. C. is stable in the absence of dispersing agents for the solids.

Detergent composition

A thickener and surfactant for a driving fluid used in enhanced oil recovery comprises a salt of a sulphated polyoxyethylene alcohol in which at least 40 wt % of the alcohol portion of the sulphated polyoxyethylene alcohol is a C.sub.8 to C.sub.20 primary alcohol having a C.sub.1 to C.sub.3 alkyl substituent in the 2-position of an otherwise linear chain. The balance of the alcohol portion may be made up of a linear primary alcohol of same carbon number as the 2-alkyl branched alcohol.

Oil recovery process

Anionic surfactants are stabilized by incorporating in them an alkane which is substituted by at least 3 hydroxyphenyl groups.

Stabilized anionic surfactants

A method of demulsifying a water in oil emulsion by contacting the emulsion with an alkyd resin in which one component of the resin is the residue of a polyalkylene glycol.

Growing community of inventors

Stockton-on-Tees, United Kingdom

Roger I Hancock