Imperial Chemical Industries Limited

Zeneca Limited

Geoffrey R Rothwell

Peter Gregory

Roy Porter

Roy Bradbury

Raymond Lesley White

Marie Holmes

William Black

A composition of matter, useful in the production of organic photoconductor devices, comprising a dispersion of X-form metal-free phthalocyanine in an organic liquid containing an effective amount of a dispersant.

Photosensitive composition for use in an OPC comprising X-metal free

A thermal transfer printing sheet comprising a substrate having a coating comprising a dye of the formula:

Thermal transfer printing

Thermal transfer printing with z-alkyl-phenoxy anthraquinone dye mixture

An aqueous dispersion of a solid, especially a disperse dyestuff or a pigment, containing, as dispersing agent, a water-soluble, non-ionic polycyclic aromatic compound having a poly(lower alkylene-oxy)chain containing from 5 to 30 lower alkylene-oxy groups. Preferred dispersing agents contain about 10 ethylene-oxy groups in the chain. The dispersions of disperse dyestuffs are especially suitable for use in aqueous print pastes based on synthetic thickening agents and the pigment dispersions are suitable for use in emulsion paints.

Aqueous dispersions of coloring materials: poly-alkyleneoxy naphthalene

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Chadderton, United Kingdom

Geoffrey R Rothwell