C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 5/16 (2006.01) C08J 3/12 (2006.01)
Patent
CA 2203408
Redispersable polymer powder compositions contain homopolymers or copolymers of ethylenically unsaturated monomers and cyclodextrins or cyclodextrin derivatives having the general formula (I), in which n = 6, 7 or 8, the substituents R are identical of different and stand for H or R1, the substituents R1 are identical or different and stand for optionally substituted C1-C4-alkyl, hydroxy-C1-C4-alkyl, carboxy-C1-C4-alkyl, C2-C4- carboxyl residues. Also disclosed are a process for preparing these compositions and their use, as well as polymer dispersions stabilised with cyclodextrins or cyclodextrin derivatives obtained as intermediate products.
Des compositions pulvérulentes polymères redispersibles contiennent des homopolymères ou des copolymères de monomères éthyléniquement insaturés et de la cyclodextrine ou des dérivés de cyclodextrine ayant la formule générale (I), dans laquelle n vaut 6, 7 ou 8, les substituants R sont identiques ou différents et désignent H ou R?1¿, les substituants R?1¿ sont identiques ou différents et désignent des résidus alkyle C¿1?-C¿4?, hydroxy-alkyle C¿1?-C¿4?, carboxy-alkyle C¿1?-C¿4?, carboxyle C¿2?-C¿4? le cas échéant substitués. L'invention concerne également un procédé de préparation de ces compositions et leur utilisation, ainsi que les dispersions polymères stabilisées avec des cyclodextrines ou des dérivés de cyclodextrine, obtenues comme produits intermédiaires.
Figge Reiner
Haas Wolfgang
Gowling Lafleur Henderson Llp
Wacker-Chemie Gmbh
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