SIZING COMPOSITION

摘要

The present invention relates to a substantially water-free sizing composition, an aqueous sizing dispersion, the use for sizing or surface sizing paper and board and a process for the production of paper and board. The substantially water-free sizing composition comprises a cellulose reacti ve sizing agent and an esterified copolymer which is obtainable from a mixture comprising aliphatic olefins and derivatives of unsaturated carboxylic acids . More specifically, the composition comprises an esterified copolymer obtainable form a mixture comprising .alpha.-olefins and derivatives of .alpha., .beta.-unsaturated dicarboxylic acids.