Clariant International Ltd

Matthias Arndt

Klaus-Ulrich Pedain

Kevin Mutch

Gemma Solduga Ramirez

Martijn Gillissen

Yves Schunk

Pia Mueller

Jozef Kochan

The invention relates to a polyester including two or more of the structural units (a1), one or more of the structural units (a2) and either one or two of the terminal groups (a3) Adjacent structural units (a1) are connected by the structural unit (a2). When only one terminal group (a3) is present in the polyester, the other terminal group is selected from the group consisting of OH, OCH, and GOH. Both terminal groups are linked to acyl groups derived from a dicarboxylic acid.

Soil release polyesters for use in detergent compositions

The invention relates to esterquats which can be obtained by reacting di- or trialkanolamines with a mixture of fatty acids and polycarboxylic acids, and the esters obtained in this manner are then quaternized with an alkylating agent, wherein the di- or trialkanolamines correspond to formula (I), in which R1 and R2 independently of one another represent hydroxyalkyl groups with 1 to 20 carbon atoms, hydroxyalkenyl groups with 2 to 20 carbon atoms and 1, 2, or 3 double bonds, or addition products of 1 to 20 mol ethylene oxide on a hydroxyethyl group and R3 represents hydrogen, an alkyl group with 1 to 20 carbon atoms, an alkenyl group with 2 to 20 carbon atoms and 1, 2, or 3 double bonds, a hydroxyalkyl group with 1 to 20 carbon atoms, a hydroxyalkenyl group with 2 to 20 carbon atoms and 1, 2, or 3 double bonds, or addition products of 1 to 20 mol ethylene oxide on a hydroxyethyl group; the fatty acids correspond to formula (II),R&#x2014;COOH&#x2003;&#x2003;(II)in which R4 represents an aliphatic, linear, or branched hydrocarbon group with 5 to 29 carbon atoms and 0, 1, 2, or 3 double bonds; and the polycarboxylic acids correspond to formula (III), in which Y represents a carbon atom or a saturated or unsaturated aliphatic hydrocarbon group with 2 to 5 carbon atoms, said group optionally having one or more hydroxyl groups, and X represents hydrogen or a hydroxy- or carboxylic acid group. The invention also relates to the use of said esterquats as collectors for the flotation of non-sulfidic minerals.

Esterquats for the flotation of non-sulfidic minerals and ores, and method

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Mannheim, Germany

Matthias Arndt