Ciba Specialty Chemicals Water Treatments Limited

Simon Donnelly

Kenneth Charles Symes

Fritz Herren

Robert Cockcroft

John Mark Plonka

Philip Anson Ford

Valerie Reynolds

Michael Singh

John Robert Stockwell

Christina Northfleet

Andrew McCann

Laurence Rys

A polymer comprising i) a synthetic polymeric component that has been formed from an ethylenically unsaturated water-soluble or potentially water-soluble monomer and an ethylenically unsaturated monomer carrying a reactive group, wherein the reactive group is directly reactive with a cellulose binding domain protein; and ii) a protein component consisting of a cellulose binding domain protein, wherein the cellulose binding domain protein. The polymer is particularly suitable as a dry strength resin in a paper making process. It can also be used as a wet strength resin, internal sizing agent or surface sizing agent.

Fine particle size lime slurries and their production

A process of preparing an aqueous composition comprising a polysilicate, wherein the composition is a substantially uniform liquid when measured at 25&#xb0; C., comprising the steps of, i) providing an aqueous liquid having a source of silicate, ii) adjusting the pH of the liquid to between about 2 and about 10.5, thereby causing polymerisation of the silicate, iii) allowing sufficient time for the polymerisation to proceed to substantial completion and thereby forming a product comprising gelled material, iv) subjecting the gelled material to sufficient shear to form a substantially uniform liquid. The novel aqueous composition made by this process is useful in the manufacture of paper and paperboard either as a mineral filler or as a retention/drainage aid.

Aqueous compositions and their use in the manufacture of paper and paperboard

Aqueous polymeric emulsion compositions and their use for the sizing of paper

Growing community of inventors

Michelbach le Haut, France

Simon Donnelly