Basf Aktiengesellschaft

Charalampos Gousetis

Knut Oppenlaender

Richard Baur

Alfred Oftring

Wolfgang Trieselt

Werner Bochnitschek

Gert Liebold

Heinrich Hartmann

Walter Denzinger

Juergen Mohr

Stefan Birnbach

Guenter Frey

Hans Peter Rath

Norbert Rieber

Martin Fischer

Alexander Kud

Hans-Henning Vogel

Juergen Thomas

Michael Kneip

Alfred Ruland

Klaus Pfitzner

Ulrich Goeckel

Ralf Kaestner

Polyisobutylaminoalcohols and fuels for internal combustion engines containing these products

Phosphonomethylated poly-vinylamines which contain as characteristic structural elements units of the formula

Phosphonomethylated polyvinylamines and preparation and use thereof

Use of water-soluble copolymers of monoethylenically unsaturated

.beta.-Alaninediacetic acid (Ia) or its alkali metal or ammonium salts (Ib) are prepared by a process in which iminodiacetic acid and acrylic acid

Preparation of .beta.-alaninediacetic acid or its alkali metal or

2-Hydroxy-3-aminopropionic acid derivatives of the general formula I ##STR1## where X is hydrogen, an alkali metal or ammonium which may be substituted by C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -hydroxyalkyl, and Y.sup.1 and Y.sup.2 have the following meanings:

Use of 2-hydroxy-3-aminopropionic acid derivatives as complexing agents,

2-Methyl- and 2-hydroxymethyl-serine-N,N-diacetic acid and derivatives thereof of the general formula I ##STR1## in which X denotes hydrogen, alkali metal or ammonium which may or may not be substituted by C.sub.1 -C.sub.4 -hydroxyalkyl groups and Z denotes hydrogen or hydroxyl. The compounds I serve as complexing agents for heavy metal ions or alkaline earth metal ions and as bleach stabilizers or builders in detergents and cleaning formulations.

2-methyl- and 2-hydroxymethyl-serine-N,N-diacetic acid and derivatives

Washing and cleaning agents for aqueous use contain from 2 to 25% by weight, based on the total weight of the agent, of .beta.-alanine-N,N-diacetic acid or an alkali metal or ammonium salt thereof as water softener. The washing and cleaning agent is effective in preventing hardness deposits on textiles and fabrics.

Washing and cleaning agents containing .beta.-alanine-N,N-diacetic acid

Fuels for gasoline engines and diesel engines contain small amounts

Fuels containing small amounts of alkoxylates and polycarboximides

Alkoxysilanes containing low levels of chlorine compounds are prepared by stepwise etherification of chlorosilanes with alcohols in liquid phase and removal of the resulting hydrogen chloride by reacting the alkoxysilane obtained, which still contains a small amount of chlorine compound, with a metal alkoxide in an amount which corresponds to a small stoichiometric excess based on the proportion of chlorine compound, and freeing the reaction product from the resulting salt.

Preparation of alkoxysilanes containing a low level of chlorine compounds

Glycol-based coolant mixtures which are free of nitrites and phosphates contain alkali metal salts of bis(carboxyalkyloxyphenyl)-2,2-propane and stabilized silicate and also further corrosion-inhibiting additives.

Nitrite- and phosphate-free glycol-based coolant mixtures

Organosilane/silicate copolymers obtainable by reacting an organic phosphosilicon compound of the formula I ##STR1## where n, X, Y, R.sup.1 and R.sup.2 have the meanings stated in the description, with an alkali metal silicate, radiator antifreezes containing these compounds, their use as corrosion inhibitors in radiator antifreezes based on glycol, a method of inhibiting corrosion of aluminum by aqueous cooling media, containing radiator antifreeze based on glycol, during the cooling of internal combustion engines, and the use of organic phosphosilicon compounds for stabilizing silicates.

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Ludwigshafen, Germany

Charalampos Gousetis