摘要 |
Polyacetals containing units of formula (I), wherein R stands for H, C1-C4 alkyl or COOM, where M stands for a C1-C4 alkyl, alkali metal, ammonium and alkanolamine group, and m = 0 to 9, with K-values (determined by the H. Fikentscher method on the sodium salt in a 1 wt. % aqueous solution at 25 DEG C and pH 7) of at least 8.5. Method of preparing the polyacetals by polymerization of compounds of formula (II), wherein R stands for H, C1-C4 alkyl or COOM, where M stands for a C1-C4 alkyl, alkali metal, ammonium and alkanolamine group, R<2> stands for C1-C4 alkyl and m = 0 to 9, in the presence of initiators and possibly comonomers, and, possibly, hydrolysis of the ester groups of the polymers. Use of the polyacetals as additives in washing and cleaning agents.
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申请人 |
BASF AG, 6700 LUDWIGSHAFEN, DE |
发明人 |
FUNHOFF, ANGELIKA, DR., 6900 HEIDELBERG, DE;SEELMANN-EGGEBERT, HANS-PETER, DR., 6905 SCHRIESHEIM, DE;HARTMANN, HEINRICH, DR., 6703 LIMBURGERHOF, DE;BAUR, RICHARD, DR., 6704 MUTTERSTADT, DE;SCHWENDEMANN, VOLKER, DR., 6730 NEUSTADT, DE;KUD, ALEXANDER, DR., 6509 EPPELSHEIM, DE;BERTLEFF, WERNER, DR., 6806 VIERNHEIM, DE |