Fibrous products and methods of manufacture

D - Textiles – Paper – 21 – H

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D21H 11/16 (2006.01) D21H 17/56 (2006.01)

Patent

CA 2738087

Fibrous materials made from multiple populations of fibers, and compositions related to preparing such, are disclosed. In some instances, fiber populations can have different native surfaces, in which at least one of the populations can be surface modifed, for example by the use of a polycation (e.g., a polyamine), secondary polymers, complementary polymers, and/or other agents. These populations can be combined to form a fibrous composition, where the surface treatments can enhance properties of the end product. Populations of fibers can also have other physcially varying characteristics (e.g., shapes and sizes). Such compositions can be utilized in a variety of applications such as paper products, filters, fire-retardant fibrous products, protein adsorbing fibrous materials, and fibrous sheets having conducting properties. Methods of preparing portions or the entirety of such fibrous materials are also disclosed.

La présente invention a pour objet des matières fibreuses fabriquées à partir de populations multiples de fibres, et les compositions associées à leur préparation. Dans certains exemples, les populations de fibres peuvent avoir des surfaces natives différentes, dans lesquelles au moins lune des populations peut être modifiée en surface, par exemple au moyen dun polycation (par exemple, une polyamine), de polymères secondaires, de polymères complémentaires, et/ou dautres agents. Ces populations peuvent être combinées pour former une composition fibreuse, les traitements de surface pouvant améliorer les propriétés du produit final. Les populations de fibres peuvent aussi avoir dautres caractéristiques physiquement variables (par exemple, les formes et les tailles). Ces compositions peuvent être utilisées dans une variété dapplications telles que les produits de papier, les filtres, les produits fibreux ignifuges, les matières fibreuses adsorbant les protéines, et les feuilles fibreuses ayant des propriétés conductrices. La présente invention a également pour objet des procédés de préparation de certaines parties ou de la totalité de ces matières fibreuses.

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