Method of treating fibrous materials

D - Textiles – Paper – 06 – M

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117/187, 117/241

D06M 15/643 (2006.01)

Patent

CA 2035284

A method of treating fibrous materials comprises applying a polydiorganosiloxane having at least one unit (a) of the general formula Image and at least one unit (b) of the general formula Image wherein R is a hydroxyl, monovalent hydrocarbon or hydrocarbonoxy group, R' is a divalent hydrocarbon group which optionally contains oxygen and/or nitrogen, R" is a hydrogen atom or an alkyl group optionally containing an oxygen atom in the form of a hydroxyl group and/or a C=O group, a is 1 or 2, b 2 or 3 and each n from 2 to 8. Treated fibrous materials have improved softness with improved non-yellowing characteristics.

Divulgation d'une méthode de traitement de matériaux fibreux, comprenant l'application d'un polydiorganosiloxane ayant au moins un motif (a) de formule générale Image et au moins un motif (b) de formule générale Image , dans lesquelles R est un hydroxyle, un hydrocarbure monovalent ou un groupement hydrocarbonoxy, R' est un groupement hydrocarboné divalent, pouvant contenir de l'oxygène ou de l'azote, ou des deux, R" est un atome d'hydrogène ou un groupement alkyle pouvant contenir un atome d'oxygène sous forme d'un groupement hydroxyle ou d'un groupement C=O, ou des deux, a est égal à 1 ou 2, b est égal à 2 ou 3 et chaque n est compris entre 2 et 8 inclusivement. Les matériaux fibreux traités sont plus souple et résistent mieux au jaunissement.

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