D - Textiles – Paper – 21 – H
Patent
D - Textiles, Paper
21
H
D21H 21/24 (2006.01) D21H 17/06 (2006.01) D21H 17/07 (2006.01) D21H 17/72 (1995.01)
Patent
CA 2162848
Substantially waterless self-emulsifiable chemical softening compositions are provided comprising a mixture of a quaternary ammonium compound and a polyhydroxy compound. Preferred quaternary ammonium compounds include dialkyl dimethyl ammonium salts such as di(hydrogenated)tallow dimethyl ammonium chloride, di(hydrogenated)tallow dimethyl ammonium methyl sulfate. Preferred polyhydroxy compounds are selected from the group consisting of glycerol, polyglycerols having a weight average molecular weight of from about 150 to about 800 and polyoxyethylene glycols and polyoxypropylene glycols having a weight average molecular weight from about 200 to 4,000. The substantially waterless self-emulsifiable chemical softening compositions are prepared by mixing the quaternary ammonium compound with the polyhydroxy compound at a specific temperature range wherein the polyhydroxy compound is miscible with the quaternary ammonium compound. The resulting stable solid or concentrated fluid mixture can then be economically shipped to the consumer or ultimate user. The ultimate users of the chemical softening composition simply dilute the mixture with a liquid carrier (e.g., water) to form an aqueous dispersion suitable for treating fibrous cellulosic materials. The substantially waterless self-emulsifiable chemical softening compositions disclosed herein are primarily intended for softening disposable paper products such as tissues and towels.
Composition d'adoucissant autoémulsifiant pratiquement exempt d'eau, comportant un mélange d'un composé d'ammonium quaternaire et d'un composé polyhydroxy. Les composés d'ammonium quaternaire préférés comprennent des sels de dialkyldiméthylammonium tels que le chlorure de disuif(hydrogéné) diméthylammonium ou le sulfate méthylique de disuif(hydrogéné) diméthylammonium. Les composés polyhydroxy préférés sont choisis dans un groupe constitué de glycérol, de polyglycérols d'un poids moléculaire moyen compris entre environ 150 et 800, et de polyoxyéthylène-glycols et de polyoxypropylène-glycols d'un poids moléculaire moyen compris entre environ 200 et 4000. Lesdits adoucissants s'obtiennent en mélangeant le composé d'ammonium quaternaire au composé polyhydroxy à dans une plage de températures spécifique où le second est miscible avec le premier. Il en résulte un mélange stable, solide ou sous forme de concentré liquide, facile à expédier au consommateur ou à l'utilisateur final, qui n'ont plus qu'à le diluer dans un excipient liquide (p. ex. de l'eau) pour former une dispersion aqueuse se prêtant au traitement des produits fibreux cellulosiques. Les adoucissants chimiques automémulsifiants pratiquement exempts d'eau présentés ici sont principalement destinés à l'adoucissement de produits en papier jetables tels que mouchoirs et serviettes.
Laughlin Robert Gene
Phan Dean Van
Trokhan Paul Dennis
Sim & Mcburney
The Procter & Gamble Company
LandOfFree
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