Ciba-geigy Corporation

Werner Mischler

Hugo Tlach

Klaus-Dieter Leifels

Peter Burri

Rene Graf

There is described a pressure-sensitive recording and transfer material containing in a first sheet a coating comprising one of the components (A) and (B) or a solvent for these components and in a second sheet the other or both of the components (A) and (B) and an electron-attracting and colour-developing material as component (C),

Pressure-sensitive recording and transfer material

A process for producing paper or cardboard sized in the pulp with epoxide-amine-polyamide reaction products is disclosed. This process comprises adding to the fibre suspension, which has a pH value of 5 to 8,

Process for producing sized paper and cardboard with polyelectrolytes

A process for producing paper or cardboard which is sized in the pulp with epoxide-amine-polyamide reaction products is disclosed. In this process there are added to the fibre suspension

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Burg, Switzerland

Werner Mischler