Transparent softening agents
AssigneeCognis IP Management GmbH
InventorsJoaquim Bigorra Llosas, Nuria Bonastre Gilabert, Rafael Pi Subirana, Gabriela Caldero
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Abstract
The invention relates to transparent softening agents containing: (a) ester quaternaries, which are obtained by reacting alkanolamines with a mixture consisting of fatty acids and of dicarboxylic acids, whereby the resulting esters are optionally alkoxylated and subsequently quaternized in a known manner, and containing; (b) auxiliary agents selected from the group formed by: (b1) fatty acid amidoamines and/or quaternization products thereof; (b2) betaines; (b3) nonionic surfactants; (b4) polyols and/or derivatives thereof; (b5) alcohols and/or; (b6) hydrotropes.
Claims19
A process for making a transparent softening agent comprising the steps of:
- (a) providing an esterquat made by:
- (i) reacting an alkanolamine and a mixture containing a fatty acid and a dicarboxylic acid, to form an ester;
- (ii) optionally, alkoxylating the ester to form an alkoxylated ester;
- and
- (iii) quaternizing the ester to form the esterquat;
- (b) providing a quaternized fatty acid amidoamine;
- and
- (c) mixing (a) and (b) together with water, whereby, a transparent softening agent is formed;
- and
- wherein the transparent softening agent is clear after storage for four weeks at 23° C.
A softening agent comprising:
- (a) an esterquat containing residues of:
- (i) an alkanolamine;
- (ii) a mixture containing a fatty acid and a dicarboxylic acid;
- (iii) optionally, an alkylene oxide;
- and
- (iv) a quaternizing agent;
- and
- (b) a quaternized fatty acid amidoamine, and
- (c) water,
- wherein the softening agent is transparent and is clear after storage for four weeks at 23° C.
A softening agent consisting of:
- (a) an esterquat containing residues of:
- (i) an alkanolamine;
- (ii) a mixture containing a fatty acid and a dicarboxylic acid;
- (iii) optionally, an alkylene oxide;
- and
- (iv) a quaternizing agent;
- and
- (b) a quaternized fatty acid amidoamine, and
- (c) water,
- wherein the softening agent is transparent and is clear after storage for four weeks at 23° C.
Dependencies are inferred from the claim text.