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US 11,299,692 B2Granted
Fabric softener active compositions
AssigneeKao Corporation
InventorsBlanca Nogues Lopez, Carmen M. Pey Gutierrez, Miquel Mundo Blanch, Jaume Sobrevias Alabau
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Abstract
The present invention relates to fabric softener active compositions comprising a combination of a quaternary ester ammonium compound and fatty solvents (a fatty acid ester, a fatty acid, a fatty alcohol and mixtures thereof) and methods of making and using the same. The invention also proposes fabric softener compositions, comprising the previously described active compositions, and methods of making and using the same.
Claims19
A fabric softener active composition comprising:
- a component (a), said component comprising:
- at least one quaternary mono-ester ammonium compound, at least one quaternary di-ester ammonium compound and at least one quaternary tri-ester ammonium compound, and being obtainable by a process comprising at least the following steps:
- i) reacting a fatty acid, a methyl ester or a triglyceride thereof with an alkanolamine, wherein the molar ratio of fatty acid to alkanolamine is 1.4-2.5, to obtain a mixture containing an esteramine;
- and
- ii) quaternizing the mixture with an alkylating agent;
- a component (b), said component being a fatty acid ester or a mixture of fatty acid esters, wherein the component (b) content is in the range from 5 to 30% wt. based on the total weight of the fabric softener active composition;
- a component (c), said component being a fatty acid or a mixture of fatty acids, wherein the component (c) content is in the range from 0.5 to 15% wt. based on the total weight of the fabric softening active composition;
- wherein less than 3% by wt. of the total weight of the fabric softener active composition is a solvent;
- and
- wherein the composition has a dropping point below 60° C.
7 more elements
Dependencies are inferred from the claim text.