Acicular aluminium salts of carboxylic acids and processes for their preparation
AssigneeCiba-Geigy Corporation
InventorsFriedrich Lohse, Rolf Schmid, Willy Fatzer
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Abstract
Aluminium monohydroxide salts of a carboxylic acid which are free from water of crystallization and have the formula ##STR1## or contain the structural element of the formula ##STR2## in which R is methyl, ethyl or phenyl or R.sup.1 is the divalent group --C.sub.n H.sub.2n --, in which n is a number from 3 to 10, and which can also be in the form of a dimer, have an acicular to rod-shaped crystal form. They are suitable as fillers for polymers, especially as reinforcing fillers for elastomeric epoxide resins.
Claims8
An acicular to rod-shaped aluminium monohydroxide salt of a carboxylic acid, which salt is free from water of crystallisation and has the formula I or contains the structural element of the formula II, or mixtures of these salts, ##STR7## in which R is methyl, or ethyl or R.sup.1 is the divalent group --C.sub.n H.sub.2n --, in which n is a number from 3 to 10.
Dependencies are inferred from the claim text.