C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 51/08 (2006.01) C08F 283/10 (2006.01) C09D 5/44 (2006.01) C09D 151/08 (2006.01)
Patent
CA 2263843
The invention relates to aqueous dispersions. They are obtainable by polymerizing an ethylenically unsaturated monomer or a mixture of ethylenically unsaturated monomers in an aqueous solution of an at least partially protonated epoxide-amine adduct. It is characterized in that the epoxide-amine adduct is for its part obtainable by reacting (A) a glycidyl ether of a polyphenol that contains on statistical average at least one epoxide group in the molecule, or a mixture of such glycidyl ethers, (B) a polyglycidyl ether of a polyol that contains on statistical average more than 1.0 epoxide group in the molecule, or a mixture of such polyglycidyl ethers, and (C) a compound that contains a primary amino group in the molecule, or a mixture of such compounds, to give the epoxide-amine adduct, components (A) and (B) being employed in a ratio of equivalents of from 1.0:0.5 to 1.0:8.0 and from 0.3 to 0.7 mol of component (C) being employed per equivalent of epoxide groups of (A) and (B).
La présente invention concerne des produits aqueux de dispersion. On les obtient par polymérisation d'un monomère éthyléniquement insaturé ou d'un mélange de monomères éthyléniquement insaturés dans une solution aqueuse d'un adjuvant amino epoxy au moins partiellement protonisé. Elle a ceci de caractéristique que l'adjuvant amino epoxy s'obtient en mettant à réagir (A) un glycidylether de polyphénol contenant en moyenne statistique au moins un groupe epoxy dans la molécule, ou un mélange de tels glycidylethers, (B) un polyglycidylether de polyol contenant en moyenne statistique plus de 1,0 groupe epoxy, ou un mélange de tels polyglycidylethers, et (C) une liaison contenant un groupe amino primaire, ou un mélange de telles liaisons, les composants (A) et (B) étant additionnés selon un rapport d'équivalence compris entre 1,0: 0,5 à 1,0: 8,0, et, en groupes équivalents époxy des composants (A) et (B), 0,3 à 0,7 mol du composant (C).
Bremser Wolfgang
Grosse-Brinkhaus Karl-Heinz
Ott Gunther
Strickman Frank
Basf Coatings Aktiengesellschaft
Fetherstonhaugh & Co.
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