Basf Coatings Gmbh

Université Blaise Pascal - Clermont-ferrand II

Elke Austrup

Wolfgang Bremser

Horst Hintze-Brüning

Horst Hintze-Bruening

Michael Dornbusch

Reinhold Clauss

Beate Podlaski-Pyzik

Hans-Peter Steiner

Thomas Stimpfling

Fabrice LeRoux

Alex Matthew Oliver

Charles Frederick James Faul

Thomas Lohmeier

Andrej Koenig

Arthur Langry

Horst Hintz-Bruning

Claudia Swanson

Ute Stockbrink

Horst Hintze-BRÜNING

Andrej KÖNIG

The present invention relates to a composition comprising (A) at least one carboxy-functional polyester having an acid number in the range from 20 to 250 mg KOH/g, prepared using at least one difunctional monomer (a1) with aliphatic groups having 12 to 70 carbon atoms between the functional groups, and also (B) at least one synthetic layered hydroxide, where the at least one layered hydroxide (B) is prepared in the presence of the polyester (A). The present invention further relates to the preparation of the composition and also to the use of the composition as coating material.

Composition based on layered hydroxides and polyesters, process for preparing the composition, and use thereof

The present invention relates to new carboxy-functional polyester and diester derivatives preparable by ring-opening reaction of (A) at least one anhydride of the formula (I) where R&#x2550;H, Cto Calkyl, or Cto Calkenyl with (B) at least one hydroxy-functional component, where (B1) the polyester derivatives are prepared using at least one linear hydroxy-functional polyester prepared using 7 to 95 mol %, based on the total amount of the monomers used in preparing the polyester (B1), of at least one difunctional monomer (b1) with aliphatic groups with 12 to 70 carbon atoms between the functional groups, and (B2) the diester derivatives are prepared using at least one dihydroxy-functional component which has an aliphatic group with 12 to 70 carbon atoms between the hydroxyl groups. The present invention further relates to aqueous compositions comprising at least one such polyester derivative and/or diester derivative, and water. The present invention relates, moreover, to the use of the polyester and/or diester derivatives for producing liquid-crystalline phases.

Carboxy-functional polyester and diester derivatives

The invention relates to an aqueous coating material for metallic substrates, comprising a water-dispersible and/or water-soluble polymer P with a gradient in the concentration of covalently bonded hydrophilic groups along the main polymer chain, the polymer P having covalently bonded ligands A, which form chelates with the metal ions released during the corrosion of the substrate and/or with the substrate surface, and having crosslinking functional groups B, which with themselves, with further complementary functional groups B' of the polymer P and/or with further functional groups B and/or B&#x2032; are able to form covalent bonds to crosslinkers V.

Anti-corrosion agent forming a coating film with good adhesion and method for nongalvanic application thereof

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Nordkirchen, Germany

Elke Austrup