Polyvalent metal salts of salicyclic acid resin and process for the preparation thereof
申请人:Daedong Company, Ltd.
公开号:EP1072623A2
公开(公告)日:2001-01-31
The present invention relates to a process for preparing polyvalent metal salts of salicylic acid resin, comprising reacting salicylic acid or its derivative and styrene or its derivative in the presence of zinc salt of organic carboxylic acid and/or polyvalent metal compound at 50 to 200 °C to prepare the reaction product, and reacting the reaction product with polyvalent metal compound; an aqueous dispersion where the polyvalent metal salt of resin is dispersed in water; and to a color development sheet prepared from the polyvalent metal salts of salicylic acid resin.
本发明涉及一种制备水杨酸树脂多价金属盐的工艺,包括在有机羧酸锌盐和/或多价金属化合物的存在下,在 50 至 200 °C 的温度下使水杨酸或其衍生物与苯乙烯或其衍生物反应,制备反应产物,并使反应产物与多价金属化合物反应;树脂多价金属盐在水中分散的水分散液;以及用水杨酸树脂多价金属盐制备的显色片。