Basf Se Corporation

Matthias Zorn

Karl-Heinz Schumacher

Markus Hansch

Marc Walter

Harald Boehnke

Dirk Wulff

Kathrin Michl

Armin Burghart

Jochen Mezger

Yvonne Dieckmann

Kian Molawi

Timo Mangel

Christian Brand

Iris Peters-Steuer

Felix Laubersheimer

Joerg-Alexander Dimmer

Mixtures of certain olefin-carboxylic acid copolymers (A) with at least one additive with detergent action, preferably at least one quaternary nitrogen compound (B), and optionally further fuel additives, are useful for improving or boosting the separation of water from fuel oils and gasoline fuels.

Mixtures for improving or boosting the separation of water from fuels

The present invention relates to aqueous acrylic polymer latexes, which are suitable as binders in coating compositions for providing flexible roofing. The present invention also relates to coating compositions containing such binders, which are suitable for providing flexible roofing. The aqueous acrylic polymer latexes have a glass transition temperature Tof at most from &#x2212;10&#xb0; C., in particular at most &#x2212;20&#xb0; C., or, in case of a multi-stage polymer latex a weight average glass transition temperature Tof at most from &#x2212;10&#xb0; C., where the polymer of the acrylic polymer latex has a carbon polymer backbone formed by polymerized ethylenically unsaturated monomers M comprising acrylic monomers, and where the carbon polymer backbone bears functional groups of the formula (I) attached to carbon atoms of the polymer backbone *&#x2014;C(&#x2550;O)&#x2014;O-[A-NH]H (I) where the asterisk indicates the atom attached to a carbon atom of the polymer backbone, n is an integer, the number average of n in all functional groups of the formula (I) being &#x3e;1, in particular at least 1.1 or at least 1.2 or at least 1.3, and A is selected from the group consisting of 1,2-ethandiyl or 1,2-propandiyl, where the functional groups of the formula (I) contribute to the total weight of the polymer in the acrylic polymer latex by 0.1 to 10% by weight.

Aqueous acrylic polymer latexes and their use as binders

The present invention relates to the use of a mixture comprising (I) at least one complex ester obtainable by an esterification reaction between (A) at least one aliphatic linear or branched C-to C-dicarboxylic acid, (B) at least one aliphatic linear or branched polyhydroxy alcohol with 3 to 6 hydroxyl groups, and (C) as a chain stopping agent (C1) at least one aliphatic linear or branched C-to C-monocarboxylic acid in case of an excess of component (B), or (C2) at least one aliphatic linear or branched monobasic C-to C-alcohol in case of an excess of component (A), and (II) at least one aliphatic monocarboxylic acid having from 12 to 30 carbon atoms in a weight ratio of (I):(II) of from 20 to 80:80 to 20 as an additive in a fuel for different purposes.

Use of a mixture of a complex ester with a monocarboxylic acid to reduce friction

A process for preparing aqueous dispersions of polymers containing oxazoline groups, by aqueous emulsion polymerization initiated by free radicals. The polymerization are carried out in two stages. In the first polymerization stage, an &#x3b1;,&#x3b2;-monoethylenically unsaturated compound having at least one acid group, an monoethylenically unsaturated compound having at least one carboxylic acid amide group, a monoethylenically unsaturated compound having at least one carboxylic acid amide group are copolymerized. In the second polymerization stage, a monoethylenically unsaturated compound having at least one oxazoline group, a monoethylenically unsaturated compound having at least one carboxylic acid amide group and an ethylenically unsaturated compound are copolymerized with the final product from the first polymerization stage.

Aqueous dispersion of an oxazoline group-containing polymer

Described are aqueous polymer dispersions for composite film lamination, comprising a dispersed polymer and a dissolved polymer, and also a multistage process for preparing them from ethylenically unsaturated, radically polymerizable monomers. In a first stage, a first polymer is prepared by radical emulsion polymerization. In a second stage, an aqueous polymer dispersion is prepared in the presence of the first polymer. The monomers of the first stage comprise monomers with acid groups. The dissolved polymer comprises monomers having oxazoline groups, and also water-soluble monomers. The aqueous polymer dispersions can be used as adhesive for producing composite films.

Aqueous polymer dispersions for composite film lamination

Described are aqueous polymer dispersions for composite film lamination and a multistage process for preparing them from ethylenically unsaturated, radically polymerizable monomers. In a first stage, a first polymer is prepared by radical emulsion polymerization. In a further stage, an aqueous polymer dispersion is prepared in the presence of the first polymer. The monomers of the first stage comprise monomers with acid groups. The monomers of the further stage comprise monomers having oxazoline groups. The polymerization of the first stage takes place at a low pH of less than 5. The acid groups of the first polymer are neutralized before the polymerization of the further stage. The aqueous polymer dispersions can be used as adhesives for producing composite films.

Oxazoline-containing aqueous polymer dispersions for composite film lamination

The present application relates to novel copolymers and processes for the preparation thereof, where the copolymers comprise, as building blocks:

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Heppenheim, Germany

Matthias Zorn