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Comb polymers with delayed alkaline hydrolysis
Comb polymers having carboxyl/carboxylate and ester groups, containing a) 0.1-0.9 mol fractions of a partial structural unit S1, which is derived from an acrylic/methacrylic or maleic acid unit, b) 0-0.4 mol fractions of a partial structural unit S2, which is derived, for example, from an acrylic/methacrylic or maleic acid unit, which is esterified by means of a C1 to C20-alkanol or a polyalkylene glycol, alkyl-capped on one end, preferably a polyethylene glycol, and c) 0.1-0.4 mol fractions of a partial structural unit S3, which is derived from an acrylic/methacrylic or maleic acid unit, which is esterified by means of a polyalkylene glycol monoalkyl ether, which has a terminal, secondary hydroxyl group of the form-CH(R3)OH, wherein R3 is bulky alkyl group, preferably a methyl group.
Comb polymers with delayed alkaline hydrolysis
Comb polymers having carboxyl/carboxylate and ester groups, containing a) 0.1-0.9 mol fractions of a partial structural unit S1, which is derived from an acrylic/methacrylic or maleic acid unit, b) 0-0.4 mol fractions of a partial structural unit S2, which is derived, for example, from an acrylic/methacrylic or maleic acid unit, which is esterified by means of a C1 to C20-alkanol or a polyalkylene glycol, alkyl-capped on one end, preferably a polyethylene glycol, and c) 0.1-0.4 mol fractions of a partial structural unit S3, which is derived from an acrylic/methacrylic or maleic acid unit, which is esterified by means of a polyalkylene glycol monoalkyl ether, which has a terminal, secondary hydroxyl group of the form-CH(R3)OH, wherein R3 is bulky alkyl group, preferably a methyl group.
Comb polymers with delayed alkaline hydrolysis
SULSER UELI (Autor:in) / ZIMMERMANN JÖRG (Autor:in) / FRUNZ LUKAS (Autor:in)
29.11.2016
Patent
Elektronische Ressource
Englisch
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