Derivatized rhodamine dye and its copolymers

Details Derivatized rhodamine dye and its copolymers Derivatized rhodamine dye and its copolymers

C - Chemistry, Metallurgy

09

B

C09B 57/00 (2006.01) C02F 1/56 (2006.01) C07D 311/82 (2006.01) C08F 226/02 (2006.01) C09B 69/10 (2006.01)

Patent

CA 2210556

Disclosed are the Rhodamine B esters of hydroxy C2-C6 lower alkyl acrylates. Specifically, the hydroxy lower alkyl radical is a linear hydroxy lower alkyl radical having the hydroxy group attached to the terminal carbon atom. Also shown are copolymers of diallyldimetyl ammonium chloride which contains from 0.01 - 2 mole percent of these Rhodamine B esters and their use in treating industrial waters.

On divulgue des acrylates d'alkyle de faible poids moléculaire composés d'esters Rhodamine B d'hydroxy C2-C6. Plus particulièrement, le radical alkyle d'hydroxy de faible poids moléculaire est un radical alkyle d'hydroxy linéaire de faible poids moléculaire dont le groupe d'hydroxy est rattaché à l'atome de carbone terminal. On présente aussi des copolymères de chlorure d'ammonium diméthyle diallyque qui contiennent de 0,01 à 2 moles pour cent de ces esters Rhodamine B et leur utilisation dans le traitement d'eaux industrielles.

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