| 摘要 |
The present invention relates to a substantially water-free sizing composition, an aqueous sizing dispersion and a process for the production of paper and board. The composition or dispersion comprises a cellulose reactive sizing agent and a copolymer which is prepared from a monomer mixture comprising one or more olefins and one or more derivatives of unsaturated carboxylic acids. More specifically, the composition or dispersion comprises a copolymer prepared form a monomer mixture comprising one or more alpha-olefins and one or more derivatives of alpha,beta-unsaturated dicarboxylic acids.
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