Fabric softening

D - Textiles – Paper – 06 – M

Patent

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260/480.3, 260/4

D06M 13/463 (2006.01) C07C 229/24 (2006.01) C11D 1/62 (2006.01) C11D 3/00 (2006.01)

Patent

CA 2025159

A method of preparing a fabric softening material which comprises a quaternary ammonium material and at least on C8-28 alkyl or alkenyl group connected to the molecule via an ester linkage, said method comprising the step of reacting a base material with an alkyl or alkenyl group containing material, such that at least one alkyl or alkenyl group is connected to the base material via an ester linkage, wherein the reaction between the base material and the alkyl or alkenyl group containing material is carried out in the presence of an excess of alkyl or alkenyl groups, said excess being effective to lower the pour point of the softener material.

Divulgation d'une méthode de préparation d'un assouplissant pour tissus, comprenant un ammonium quaternaire et au moins un groupement alkyle ou alcényle en C8-28 lié à la molécule par l'intermédiaire d'une liaison ester. Cette méthode comprend la réaction d'une matière de base avec une matière comprenant un groupement alkyle ou alcényle, de telle manière qu'au moins un groupement alkyle ou alcényle se retrouve lié à la matière de base par l'intermédiaire d'une liaison ester, cette réaction étant réalisée en présence d'un excès de groupements alkyles ou alcényles, cet excès est tel qu'il abaisse efficacement le point d'écoulement de l'assouplissant.

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