Improved cellulose articles containing an additive composition

Details Improved cellulose articles containing an additive composition Improved cellulose articles containing an additive composition

D - Textiles, Paper

21

H

D21H 17/20 (2006.01) D04H 13/00 (2006.01) D06M 15/00 (2006.01) D21H 17/34 (2006.01) D21H 19/10 (2006.01) D21H 19/12 (2006.01) D21H 21/00 (2006.01) D21H 21/16 (2006.01) D21H 23/04 (2006.01) D21H 23/22 (2006.01) D21H 27/00 (2006.01)

Patent

CA 2634040

In one embodiment, the present invention provides a method of forming a cellulose article having a specific volume of less than 3 cc/gm. The method includes the step of incorporating cellulose fibers with a compound, wherein the compound includes an aqueous dispersion. The aqueous dispersion may have at least one polymer selected from the group consisting of an ethylene-based thermoplastic polymer, a propylene-based thermoplastic polymer, and mixtures thereof; at least one polymeric stabilizing agent; and water. In certain embodiments, a combined amount of the at least one polymer and the at least one stabilizing agent comprises about 25 to about 74 volume percent of the aqueous dispersion.

Selon un mode de réalisation, la présente invention concerne un procédé de formation d'un article en cellulose présentant un volume spécifique inférieur à 3 cc/gm. Le procédé comprend une étape d'incorporation de fibres de cellulose dans un composé, le composé comprenant une dispersion aqueuse. La dispersion aqueuse peut comprendre au moins un polymère choisi parmi un polymère thermoplastique à base d'éthylène, un polymère thermoplastique à base de propylène et leurs mélanges ; au moins un agent stabilisant polymérique ; et de l'eau. Selon certains modes de réalisation, une quantité combinée du ou des polymères et du ou des agents stabilisants représente environ 25 à environ 74 pour cent du volume de la dispersion aqueuse.

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