| 摘要 |
A cationic resin substd. with an ultraviolet absorbing gp. of formula (I) is produced by reacting a cpd. of formula (II) with a cpd. of formula R-OH in the presence of a coupling reagent. In the formulas, R is vinyl pyrrolidone/vinyl acetate/vinyl alcohol polymer, vinyl pyrrolidone/ vinyl alcohol polymer or vinyl formal/vinyl alcohol/vinyl acetate polymer; R' is (a) or (b); t is atomic valence of Q; Q is chloride, bromide, sulfate, nitrate, phosphate or acetate; L is chloride, bromide, hydroxy, methoxy or ethoxy.
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