Prepn. of a stable, aq. dispersion of a colophony-based material takes place in the presence of an anionic dispersant. Process comprises homogenising an unstable aq. dispersion contg. by wt., 25-30% solids, consisting, by wt., of 0-95% colophony and of 100-5% adduct of colophony and of an acid cpd. contg. the C=C-C=O gp. Quantity of acid cpd., bonded as adduct, is 1-20 wt. % of total solids. Homogenising is effected under 141-562 atmos. excess press., at 125-180 degrees C. Pref. anionic dispersant is a saponified colophony-based material, (I) and/or a synthetic emulsifier e.g., alkylaryl sulphonate salt. Dispersion is used in sizing cellulosic fibres for paper mfr., using "internal" or "externalc sizing methods. Paper sheets have improved resistance to penetration of water and aq. ink.
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机译：准备稳定的水树脂基材料的分散在阴离子分散剂的存在下进行。该方法包括均化不稳定的水溶液。分散体按重量计，固体含量为25-30％，按重量计由0-95％的树脂和100-5％的树脂和酸cpd加合物组成。续C ＝ C-C ＝ O gp。作为加合物结合的酸cpd。的量为1-20wt。％。占总固体的百分比。均质化是在141-562个大气压下进行的。在125-180摄氏度下进行过量压制。阴离子分散剂是皂化的基于树脂的材料（I）和/或合成的乳化剂，例如烷基芳基磺酸盐。分散体通过“内部”或“外部”施胶方法用于造纸用纤维素纤维的施胶，纸张具有更好的抗水和水性油墨渗透性。
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